{"id":47434,"date":"2025-07-30T07:47:47","date_gmt":"2025-07-29T23:47:47","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/47434.html"},"modified":"2025-07-30T07:47:47","modified_gmt":"2025-07-29T23:47:47","slug":"%e3%80%90spring-boot-%e5%bf%ab%e9%80%9f%e5%85%a5%e9%97%a8%e3%80%91%e4%b8%89%e3%80%81%e5%88%86%e5%b1%82%e8%a7%a3%e8%80%a6","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/47434.html","title":{"rendered":"\u3010Spring Boot \u5feb\u901f\u5165\u95e8\u3011\u4e09\u3001\u5206\u5c42\u89e3\u8026"},"content":{"rendered":"<\/p>\n<h4>\u76ee\u5f55<\/h4>\n<ul>\n<li>\u5206\u5c42\u89e3\u8026<\/li>\n<li>\n<ul>\n<li>\u6848\u4f8b&#xff1a;\u5c06 emp.xml \u4e2d\u7684\u6570\u636e\u89e3\u6790\u5e76\u54cd\u5e94<\/li>\n<li>\u4e09\u5c42\u67b6\u6784<\/li>\n<li>\u5206\u5c42\u89e3\u8026<\/li>\n<li>IOC &amp; DI \u5165\u95e8<\/li>\n<li>IOC \u8be6\u89e3<\/li>\n<li>DI \u8be6\u89e3<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>\u5206\u5c42\u89e3\u8026<\/h2>\n<h3>\u6848\u4f8b&#xff1a;\u5c06 emp.xml \u4e2d\u7684\u6570\u636e\u89e3\u6790\u5e76\u54cd\u5e94<\/h3>\n<p>emp.xml \u5185\u5bb9\u5982\u4e0b&#xff1a;<\/p>\n<p><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>emps<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>Tom<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>age<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>18<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>age<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>gender<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>1<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>gender<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>job<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>1<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>job<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>Jerry<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>age<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>19<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>age<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>gender<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>1<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>gender<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>job<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>2<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>job<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>Mike<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>age<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>20<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>age<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>gender<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>1<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>gender<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>job<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>3<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>job<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>Lucy<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>name<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>age<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>21<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>age<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>gender<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>2<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>gender<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n        <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>job<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>3<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>job<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>emps<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>XML \u6587\u4ef6\u89e3\u6790\u5de5\u5177\u7c7b XmlParserUtils&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>dom4j<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Document<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>dom4j<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Element<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>dom4j<span class=\"token punctuation\">.<\/span>io<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">SAXReader<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>io<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">File<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>lang<span class=\"token punctuation\">.<\/span>reflect<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Constructor<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">ArrayList<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">List<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">XmlParserUtils<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">T<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">T<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">parse<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> file<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Class<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">T<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> targetClass<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">ArrayList<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">T<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> list <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">ArrayList<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">SAXReader<\/span> saxReader <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">SAXReader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">Document<\/span> document <span class=\"token operator\">&#061;<\/span> saxReader<span class=\"token punctuation\">.<\/span><span class=\"token function\">read<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">File<\/span><span class=\"token punctuation\">(<\/span>file<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">Element<\/span> rootElement <span class=\"token operator\">&#061;<\/span> document<span class=\"token punctuation\">.<\/span><span class=\"token function\">getRootElement<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Element<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> elements <span class=\"token operator\">&#061;<\/span> rootElement<span class=\"token punctuation\">.<\/span><span class=\"token function\">elements<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;emp&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Element<\/span> element <span class=\"token operator\">:<\/span> elements<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                <span class=\"token class-name\">String<\/span> name <span class=\"token operator\">&#061;<\/span> element<span class=\"token punctuation\">.<\/span><span class=\"token function\">element<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;name&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getText<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token class-name\">String<\/span> age <span class=\"token operator\">&#061;<\/span> element<span class=\"token punctuation\">.<\/span><span class=\"token function\">element<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;age&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getText<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token class-name\">String<\/span> gender <span class=\"token operator\">&#061;<\/span> element<span class=\"token punctuation\">.<\/span><span class=\"token function\">element<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;gender&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getText<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token class-name\">String<\/span> job <span class=\"token operator\">&#061;<\/span> element<span class=\"token punctuation\">.<\/span><span class=\"token function\">element<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;job&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getText<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token class-name\">Constructor<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">T<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> constructor <span class=\"token operator\">&#061;<\/span> targetClass<span class=\"token punctuation\">.<\/span><span class=\"token function\">getDeclaredConstructor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Integer<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                constructor<span class=\"token punctuation\">.<\/span><span class=\"token function\">setAccessible<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token class-name\">T<\/span> object <span class=\"token operator\">&#061;<\/span> constructor<span class=\"token punctuation\">.<\/span><span class=\"token function\">newInstance<\/span><span class=\"token punctuation\">(<\/span>name<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Integer<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">parseInt<\/span><span class=\"token punctuation\">(<\/span>age<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> gender<span class=\"token punctuation\">,<\/span> job<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n                list<span class=\"token punctuation\">.<\/span><span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span>object<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> list<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5b9e\u4f53\u7c7b Emp&#xff1a;<\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Emp<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> name<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">Integer<\/span> age<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> gender<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> job<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> name<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Integer<\/span> age<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span> gender<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span> job<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>name <span class=\"token operator\">&#061;<\/span> name<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>age <span class=\"token operator\">&#061;<\/span> age<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>gender <span class=\"token operator\">&#061;<\/span> gender<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>job <span class=\"token operator\">&#061;<\/span> job<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">String<\/span> <span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token keyword\">return<\/span> name<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> name<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>name <span class=\"token operator\">&#061;<\/span> name<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Integer<\/span> <span class=\"token function\">getAge<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token keyword\">return<\/span> age<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setAge<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Integer<\/span> age<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>age <span class=\"token operator\">&#061;<\/span> age<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">String<\/span> <span class=\"token function\">getGender<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token keyword\">return<\/span> gender<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setGender<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> gender<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>gender <span class=\"token operator\">&#061;<\/span> gender<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">String<\/span> <span class=\"token function\">getJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token keyword\">return<\/span> job<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> job<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>job <span class=\"token operator\">&#061;<\/span> job<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">String<\/span> <span class=\"token function\">toString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;Emp{&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;name&#061;&#039;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> name <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#039;\\\\&#039;&#039;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;, age&#061;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> age <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;, gender&#061;&#039;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> gender <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#039;\\\\&#039;&#039;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;, job&#061;&#039;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> job <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#039;\\\\&#039;&#039;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#039;}&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u7edf\u4e00\u54cd\u5e94\u7ed3\u679c\u5c01\u88c5\u7c7b Result&#xff1a;<\/p>\n<p><span class=\"token comment\">\/*<br \/>\n * \u7edf\u4e00\u54cd\u5e94\u7ed3\u679c\u5c01\u88c5\u7c7b<br \/>\n *\/<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Result<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">Integer<\/span> code<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u72b6\u6001\u7801,200\u4e3a\u6210\u529f,500\u4e3a\u5931\u8d25<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> message<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8fd4\u56de\u6d88\u606f<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">Object<\/span> data<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8fd4\u56de\u6570\u636e<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Result<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Integer<\/span> code<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span> message<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Object<\/span> data<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>code <span class=\"token operator\">&#061;<\/span> code<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>message <span class=\"token operator\">&#061;<\/span> message<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>data <span class=\"token operator\">&#061;<\/span> data<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Integer<\/span> <span class=\"token function\">getCode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token keyword\">return<\/span> code<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setCode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Integer<\/span> code<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>code <span class=\"token operator\">&#061;<\/span> code<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">String<\/span> <span class=\"token function\">getMessage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token keyword\">return<\/span> message<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setMessage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> message<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>message <span class=\"token operator\">&#061;<\/span> message<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Object<\/span> <span class=\"token function\">getData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token keyword\">return<\/span> data<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Object<\/span> data<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>data <span class=\"token operator\">&#061;<\/span> data<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">Result<\/span> <span class=\"token function\">success<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Object<\/span> data<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Result<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">200<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;success&#034;<\/span><span class=\"token punctuation\">,<\/span> data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">Result<\/span> <span class=\"token function\">success<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Result<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">200<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;success&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">Result<\/span> <span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> message<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Result<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">500<\/span><span class=\"token punctuation\">,<\/span> message<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">String<\/span> <span class=\"token function\">toString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;Result{&#034;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;code&#061;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> code <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;, message&#061;&#039;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> message <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#039;\\\\&#039;&#039;<\/span> <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#034;, data&#061;&#034;<\/span> <span class=\"token operator\">&#043;<\/span> data <span class=\"token operator\">&#043;<\/span><br \/>\n                <span class=\"token string\">&#039;}&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8bf7\u6c42\u5904\u7406\u7c7b EmpController&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>pojo<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>utils<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">XmlParserUtils<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>web<span class=\"token punctuation\">.<\/span>bind<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">RequestMapping<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>web<span class=\"token punctuation\">.<\/span>bind<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">RestController<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">List<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;RestController<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">EmpController<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;RequestMapping<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/listEmp&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Result<\/span> <span class=\"token function\">list<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n       <span class=\"token comment\">\/\/ 1. \u52a0\u8f7d\u5e76\u89e3\u6790emp.xml<\/span><br \/>\n        <span class=\"token class-name\">String<\/span> file <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getClass<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getClassLoader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getResource<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;emp.xml&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getFile<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> empList <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">XmlParserUtils<\/span><span class=\"token punctuation\">.<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token function\">parse<\/span><span class=\"token punctuation\">(<\/span>file<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token comment\">\/\/ 2. \u5bf9\u6570\u636e\u8fdb\u884c\u8f6c\u6362\u5904\u7406<\/span><br \/>\n        empList<span class=\"token punctuation\">.<\/span><span class=\"token function\">stream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">forEach<\/span><span class=\"token punctuation\">(<\/span>emp <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">String<\/span> gender <span class=\"token operator\">&#061;<\/span> emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">getGender<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;1&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">equals<\/span><span class=\"token punctuation\">(<\/span>gender<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">setGender<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7537&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;2&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">equals<\/span><span class=\"token punctuation\">(<\/span>gender<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">setGender<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5973&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            <span class=\"token class-name\">String<\/span> job <span class=\"token operator\">&#061;<\/span> emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">getJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;1&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">equals<\/span><span class=\"token punctuation\">(<\/span>job<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">setJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8bb2\u5e08&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;2&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">equals<\/span><span class=\"token punctuation\">(<\/span>job<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n                emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">setJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u73ed\u4e3b\u4efb&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;3&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">equals<\/span><span class=\"token punctuation\">(<\/span>job<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n                emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">setJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5c31\u4e1a\u6307\u5bfc&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token comment\">\/\/3. \u54cd\u5e94\u6570\u636e<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Result<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">success<\/span><span class=\"token punctuation\">(<\/span>empList<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u54cd\u5e94\u7ed3\u679c\u4e3a&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250729234745-68895da1a7cde.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>\u4e09\u5c42\u67b6\u6784<\/h3>\n<p>controller&#xff1a;\u63a7\u5236\u5c42&#xff0c;\u63a5\u6536\u524d\u7aef\u53d1\u9001\u7684\u8bf7\u6c42&#xff0c;\u5bf9\u8bf7\u6c42\u8fdb\u884c\u5904\u7406&#xff0c;\u5e76\u54cd\u5e94\u6570\u636e<\/p>\n<p>service&#xff1a;\u4e1a\u52a1\u903b\u8f91\u5c42&#xff0c;\u5904\u7406\u5177\u4f53\u7684\u4e1a\u52a1\u903b\u8f91<\/p>\n<p>dao&#xff1a;\u6570\u636e\u8bbf\u95ee\u5c42&#xff08;Data Access Object&#xff0c;\u6301\u4e45\u5c42&#xff09;&#xff0c;\u8d1f\u8d23\u6570\u636e\u8bbf\u95ee\u64cd\u4f5c&#xff0c;\u5305\u62ec\u6570\u636e\u7684\u589e\u5220\u6539\u67e5<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250729234745-68895da1f0b11.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u56de\u987e\u4e0a\u8ff0\u6848\u4f8b&#xff0c;\u4f1a\u53d1\u73b0\u8bf7\u6c42\u63a7\u5236\u3001\u4e1a\u52a1\u903b\u8f91\u5904\u7406\u548c\u6570\u636e\u8bbf\u95ee\u90fd\u5728\u540c\u4e00\u4e2a\u7c7b\u4e2d&#xff0c;\u8fd9\u6837\u5c31\u4f1a\u4f7f\u4ee3\u7801\u7684\u590d\u7528\u6027\u5dee\u4ee5\u53ca\u96be\u4ee5\u7ef4\u62a4&#xff0c;\u6240\u4ee5\u6309\u7167\u4e09\u5c42\u67b6\u6784\u6539\u4e3a\u4ee5\u4e0b\u5185\u5bb9&#xff1a;<\/p>\n<li>\n<p>dao \u5c42\u63a5\u53e3 EmpDao&#xff1a;<\/p>\n<p> <span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>pojo<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">List<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">EmpDao<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u83b7\u53d6\u5458\u5de5\u5217\u8868\u6570\u636e<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">listEmp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<li>\n<p>dao \u5c42\u5b9e\u73b0\u7c7b EmpDaoA&#xff1a;<\/p>\n<p> <span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>dao<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">EmpDao<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>pojo<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>utils<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">XmlParserUtils<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">List<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">EmpDaoA<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">EmpDao<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">listEmp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ 1. \u52a0\u8f7d\u5e76\u89e3\u6790emp.xml<\/span><br \/>\n        <span class=\"token class-name\">String<\/span> file <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getClass<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getClassLoader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getResource<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;emp.xml&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getFile<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> empList <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">XmlParserUtils<\/span><span class=\"token punctuation\">.<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token function\">parse<\/span><span class=\"token punctuation\">(<\/span>file<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> empList<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<li>\n<p>service \u5c42\u63a5\u53e3 EmpService&#xff1a;<\/p>\n<p> <span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>pojo<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">List<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">EmpService<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">listEmp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<li>\n<p>service \u5c42\u5b9e\u73b0\u7c7b EmpServiceA&#xff1a;<\/p>\n<p> <span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>dao<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">EmpDao<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>dao<span class=\"token punctuation\">.<\/span>impl<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">EmpDaoA<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>pojo<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>service<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">EmpService<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">List<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">EmpServiceA<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">EmpService<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">EmpDao<\/span> empDao <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">EmpDaoA<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">listEmp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ 1. \u8c03\u7528dao\u5c42\u65b9\u6cd5\u83b7\u53d6\u6570\u636e<\/span><br \/>\n        <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> empList <span class=\"token operator\">&#061;<\/span> empDao<span class=\"token punctuation\">.<\/span><span class=\"token function\">listEmp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ 2. \u5bf9\u6570\u636e\u8fdb\u884c\u8f6c\u6362\u5904\u7406<\/span><br \/>\n        empList<span class=\"token punctuation\">.<\/span><span class=\"token function\">stream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">forEach<\/span><span class=\"token punctuation\">(<\/span>emp <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">String<\/span> gender <span class=\"token operator\">&#061;<\/span> emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">getGender<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;1&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">equals<\/span><span class=\"token punctuation\">(<\/span>gender<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">setGender<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7537&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;2&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">equals<\/span><span class=\"token punctuation\">(<\/span>gender<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">setGender<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5973&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token class-name\">String<\/span> job <span class=\"token operator\">&#061;<\/span> emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">getJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;1&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">equals<\/span><span class=\"token punctuation\">(<\/span>job<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">setJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8bb2\u5e08&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;2&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">equals<\/span><span class=\"token punctuation\">(<\/span>job<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n                emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">setJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u73ed\u4e3b\u4efb&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;3&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">equals<\/span><span class=\"token punctuation\">(<\/span>job<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n                emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">setJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5c31\u4e1a\u6307\u5bfc&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> empList<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<li>\n<p>controller \u5c42\u5b9e\u73b0\u7c7b EmpController&#xff1a;<\/p>\n<p> <span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>pojo<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>service<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">EmpService<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>service<span class=\"token punctuation\">.<\/span>impl<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">EmpServiceA<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>web<span class=\"token punctuation\">.<\/span>bind<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">RequestMapping<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>web<span class=\"token punctuation\">.<\/span>bind<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">RestController<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">List<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;RestController<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">EmpController<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">EmpService<\/span> empService <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">EmpServiceA<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;RequestMapping<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/listEmp&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Result<\/span> <span class=\"token function\">list<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> empList <span class=\"token operator\">&#061;<\/span> empService<span class=\"token punctuation\">.<\/span><span class=\"token function\">listEmp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token comment\">\/\/3. \u54cd\u5e94\u6570\u636e<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Result<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">success<\/span><span class=\"token punctuation\">(<\/span>empList<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<p>\u8fd9\u6837\u5c31\u5b8c\u6210\u4e86\u4e09\u5c42\u67b6\u6784\u7684\u5206\u5c42&#xff0c;\u4fbf\u4e8e\u540e\u671f\u7684\u7ba1\u7406\u4e0e\u7ef4\u62a4\u3002<\/p>\n<h3>\u5206\u5c42\u89e3\u8026<\/h3>\n<p>\u5185\u805a&#xff1a;\u6307\u4e00\u4e2a\u6a21\u5757&#xff08;\u7c7b\u3001\u65b9\u6cd5\u3001\u51fd\u6570\u7b49&#xff09;\u5185\u90e8\u5404\u4e2a\u5143\u7d20&#xff08;\u5982\u65b9\u6cd5\u3001\u5c5e\u6027&#xff09;\u4e4b\u95f4\u7684\u5173\u8054\u7d27\u5bc6\u7a0b\u5ea6\u3002\u5185\u805a\u5ea6\u8d8a\u9ad8&#xff0c;\u8bf4\u660e\u6a21\u5757\u5185\u90e8\u7684\u529f\u80fd\u8d8a\u96c6\u4e2d\u3001\u5355\u4e00&#xff0c;\u201c\u505a\u4e00\u4ef6\u4e8b\u5e76\u505a\u597d\u201d&#xff1b;\u5185\u805a\u5ea6\u4f4e\u5219\u610f\u5473\u7740\u6a21\u5757\u529f\u80fd\u6df7\u4e71&#xff0c;\u804c\u8d23\u4e0d\u6e05\u6670\u3002<\/p>\n<p>\u8026\u5408&#xff1a;\u6307\u4e0d\u540c\u6a21\u5757\u4e4b\u95f4\u7684\u4f9d\u8d56\u7d27\u5bc6\u7a0b\u5ea6\u3002\u8026\u5408\u5ea6\u8d8a\u4f4e&#xff0c;\u6a21\u5757\u4e4b\u95f4\u7684\u72ec\u7acb\u6027\u8d8a\u5f3a&#xff0c;\u4e00\u4e2a\u6a21\u5757\u7684\u4fee\u6539\u5bf9\u5176\u4ed6\u6a21\u5757\u7684\u5f71\u54cd\u8d8a\u5c0f&#xff1b;\u8026\u5408\u5ea6\u9ad8\u5219\u610f\u5473\u7740\u6a21\u5757 \u201c\u7275\u4e00\u53d1\u800c\u52a8\u5168\u8eab\u201d&#xff0c;\u96be\u4ee5\u7ef4\u62a4\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250729234746-68895da20f65b.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u6309\u7167\u6848\u4f8b\u4e2d\u4e09\u5c42\u67b6\u6784\u7684\u6d41\u7a0b&#xff0c;controller \u4e2d\u8981\u8c03\u7528 service \u90fd\u9700\u8981\u521b\u5efa\u4e00\u4e2a service \u5c42\u7684\u5bf9\u8c61&#xff0c;controller \u5c42\u4e0e service \u5c42\u8026\u5408&#xff1b;service \u4e2d\u8981\u8c03\u7528 dao \u90fd\u9700\u8981\u521b\u5efa\u4e00\u4e2a dao \u5c42\u7684\u5bf9\u8c61&#xff0c;service \u5c42\u4e0e dao \u5c42\u8026\u5408\u3002\u82e5\u540e\u7eed\u9700\u8981\u66f4\u6362 EmpService \u7684\u5b9e\u73b0\u7c7b&#xff08;\u6bd4\u5982\u65b0\u589e EmpServiceB&#xff09;&#xff0c;\u5fc5\u987b\u4fee\u6539 EmpController \u7684\u4ee3\u7801&#xff1b;\u5f53 Dao \u5c42\u5b9e\u73b0\u53d8\u66f4&#xff08;\u5982\u6362\u6210 EmpDaoB&#xff09;&#xff0c;\u5f97\u6539\u52a8 EmpServiceA \u4ee3\u7801&#xff0c;\u8026\u5408\u5ea6\u9ad8&#xff0c;\u4e0d\u5229\u4e8e\u4ee3\u7801\u6269\u5c55\u548c\u7ef4\u62a4\u3002<\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898&#xff0c;\u5c31\u8981\u5f15\u5165\u4e09\u4e2a\u6982\u5ff5&#xff1a;\u63a7\u5236\u53cd\u8f6c\u3001\u4f9d\u8d56\u6ce8\u5165\u3001Bean \u5bf9\u8c61&#xff1a;<\/p>\n<ul>\n<li>\u63a7\u5236\u53cd\u8f6c&#xff1a;Inversion Of Control&#xff0c;\u7b80\u79f0 IOC&#xff0c;\u5bf9\u8c61\u7684\u521b\u5efa\u63a7\u5236\u6743\u7531\u7a0b\u5e8f\u81ea\u8eab\u8f6c\u79fb\u5230\u5916\u90e8&#xff08;\u5bb9\u5668&#xff09;&#xff0c;\u8fd9\u79cd\u601d\u60f3\u6210\u4e3a\u63a7\u5236\u53cd\u8f6c\u3002<\/li>\n<li>\u4f9d\u8d56\u6ce8\u5165&#xff1a;Dependency Injection&#xff0c;\u7b80\u79f0 DI&#xff0c;\u5bb9\u5668\u4e3a\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b\u8fd0\u884c\u65f6\u6240\u4f9d\u8d56\u7684\u8d44\u6e90&#xff0c;\u79f0\u4e3a\u4f9d\u8d56\u6ce8\u5165\u3002<\/li>\n<li>Bean \u5bf9\u8c61&#xff1a;IOC \u5bb9\u5668\u4e2d\u521b\u5efa\u3001\u7ba1\u7406\u7684\u5bf9\u8c61&#xff0c;\u79f0\u4e3a Bean\u3002<\/li>\n<\/ul>\n<h3>IOC &amp; DI \u5165\u95e8<\/h3>\n<p>\u64cd\u4f5c\u6b65\u9aa4&#xff1a;<\/p>\n<li>service \u5c42\u53ca dao \u5c42\u7684\u5b9e\u73b0\u7c7b&#xff0c;\u4ea4\u7ed9 IOC \u5bb9\u5668\u7ba1\u7406&#xff0c;\u4f7f\u7528 &#064;Component \u6ce8\u89e3<\/li>\n<li>\u4e3a controller \u5c42\u53ca service \u5c42\u6ce8\u5165\u8fd0\u884c\u65f6\u4f9d\u8d56\u7684\u5bf9\u8c61&#xff0c;\u4f7f\u7528 &#064;Autowired \u6ce8\u89e3<\/li>\n<li>\u8fd0\u884c\u6d4b\u8bd5<\/li>\n<p>\u4ee3\u7801\u505a\u4ee5\u4e0b\u4fee\u6539&#xff1a;<\/p>\n<li>\n<p>controller \u5c42<\/p>\n<p> <span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>pojo<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>service<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">EmpService<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>beans<span class=\"token punctuation\">.<\/span>factory<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Autowired<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>web<span class=\"token punctuation\">.<\/span>bind<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">RequestMapping<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>web<span class=\"token punctuation\">.<\/span>bind<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">RestController<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">List<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;RestController<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">EmpController<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">EmpService<\/span> empService<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;RequestMapping<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/listEmp&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Result<\/span> <span class=\"token function\">list<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> empList <span class=\"token operator\">&#061;<\/span> empService<span class=\"token punctuation\">.<\/span><span class=\"token function\">listEmp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n       <span class=\"token comment\">\/\/3. \u54cd\u5e94\u6570\u636e<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Result<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">success<\/span><span class=\"token punctuation\">(<\/span>empList<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<li>\n<p>service \u5c42<\/p>\n<p> <span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>dao<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">EmpDao<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>pojo<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>service<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">EmpService<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>beans<span class=\"token punctuation\">.<\/span>factory<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Autowired<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>stereotype<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Component<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">List<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">EmpServiceA<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">EmpService<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">EmpDao<\/span> empDao<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">listEmp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ 1. \u8c03\u7528dao\u5c42\u65b9\u6cd5\u83b7\u53d6\u6570\u636e<\/span><br \/>\n        <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> empList <span class=\"token operator\">&#061;<\/span> empDao<span class=\"token punctuation\">.<\/span><span class=\"token function\">listEmp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ 2. \u5bf9\u6570\u636e\u8fdb\u884c\u8f6c\u6362\u5904\u7406<\/span><br \/>\n        empList<span class=\"token punctuation\">.<\/span><span class=\"token function\">stream<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">forEach<\/span><span class=\"token punctuation\">(<\/span>emp <span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token class-name\">String<\/span> gender <span class=\"token operator\">&#061;<\/span> emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">getGender<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;1&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">equals<\/span><span class=\"token punctuation\">(<\/span>gender<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">setGender<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7537&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;2&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">equals<\/span><span class=\"token punctuation\">(<\/span>gender<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">setGender<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5973&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            <span class=\"token class-name\">String<\/span> job <span class=\"token operator\">&#061;<\/span> emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">getJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;1&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">equals<\/span><span class=\"token punctuation\">(<\/span>job<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n                emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">setJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8bb2\u5e08&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;2&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">equals<\/span><span class=\"token punctuation\">(<\/span>job<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n                emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">setJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u73ed\u4e3b\u4efb&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;3&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">equals<\/span><span class=\"token punctuation\">(<\/span>job<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n                emp<span class=\"token punctuation\">.<\/span><span class=\"token function\">setJob<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5c31\u4e1a\u6307\u5bfc&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> empList<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<li>\n<p>dao \u5c42<\/p>\n<p> <span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>dao<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">EmpDao<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>pojo<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">com<span class=\"token punctuation\">.<\/span>example<span class=\"token punctuation\">.<\/span>demo<span class=\"token punctuation\">.<\/span>utils<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">XmlParserUtils<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>stereotype<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Component<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">List<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">EmpDaoA<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">EmpDao<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">listEmp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ 1. \u52a0\u8f7d\u5e76\u89e3\u6790emp.xml<\/span><br \/>\n        <span class=\"token class-name\">String<\/span> file <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getClass<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getClassLoader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getResource<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;emp.xml&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getFile<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> empList <span class=\"token operator\">&#061;<\/span> <span class=\"token class-name\">XmlParserUtils<\/span><span class=\"token punctuation\">.<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token function\">parse<\/span><span class=\"token punctuation\">(<\/span>file<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> empList<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<p>\u8fd9\u6837\u5c31\u5b8c\u6210\u4e86\u6a21\u5757\u95f4\u7684\u89e3\u8026\u64cd\u4f5c<\/p>\n<h3>IOC \u8be6\u89e3<\/h3>\n<p>Bean \u7684\u58f0\u660e<\/p>\n<p>\u8981\u628a\u67d0\u4e2a\u5bf9\u8c61\u4ea4\u7ed9 IOC \u5bb9\u5668\u7ba1\u7406&#xff0c;\u9700\u8981\u5728\u5bf9\u5e94\u7684\u7c7b\u4e0a\u52a0\u4e0a\u5982\u4e0b\u6ce8\u89e3\u4e4b\u4e00&#xff1a;<\/p>\n<table>\n<tr>\u6ce8\u89e3\u8bf4\u660e\u4f4d\u7f6e<\/tr>\n<tbody>\n<tr>\n<td>&#064;Component<\/td>\n<td>\u58f0\u660e Bean \u7684\u57fa\u7840\u6ce8\u89e3<\/td>\n<td>\u4e0d\u5c5e\u4e8e\u4ee5\u4e0b\u4e09\u7c7b\u65f6&#xff0c;\u7528\u6b64\u6ce8\u89e3<\/td>\n<\/tr>\n<tr>\n<td>&#064;Controller<\/td>\n<td>&#064;Component \u7684\u884d\u751f\u6ce8\u89e3<\/td>\n<td>\u6807\u6ce8\u5728\u63a7\u5236\u5668\u7c7b\u4e0a&#xff08;&#064;RestController \u5df2\u5305\u542b&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>&#064;Service<\/td>\n<td>&#064;Component \u7684\u884d\u751f\u6ce8\u89e3<\/td>\n<td>\u6807\u6ce8\u5728\u4e1a\u52a1\u7c7b\u4e0a<\/td>\n<\/tr>\n<tr>\n<td>&#064;Repository<\/td>\n<td>&#064;Component \u7684\u884d\u751f\u6ce8\u89e3<\/td>\n<td>\u6807\u6ce8\u5728\u6570\u636e\u8bbf\u95ee\u7c7b\u4e0a&#xff08;\u7531\u4e8e\u4e0e Mybatis \u6574\u5408&#xff0c;\u7528\u7684\u5c11&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u58f0\u660e\u63a7\u5236\u5668 Bean \u53ea\u80fd\u7528 &#064;Controller<\/p>\n<p>\u5728 IOC \u5bb9\u5668\u4e2d&#xff0c;\u6bcf\u4e2a Bean \u90fd\u6709\u552f\u4e00\u6807\u8bc6&#xff0c;\u5c31\u662f\u7c7b\u540d\u9996\u5b57\u6bcd\u5c0f\u5199<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250729234746-68895da2a8c7b.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u5f53\u7136\u4e5f\u53ef\u4ee5\u81ea\u5df1\u5b9a\u4e49 Bean \u7684\u540d\u79f0&#xff0c;\u53ea\u9700\u8981\u5728\u6ce8\u89e3\u540e\u9762\u52a0\u4e0a value<\/p>\n<p><span class=\"token annotation punctuation\">&#064;Repository<\/span><span class=\"token punctuation\">(<\/span>value <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;daoA&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ value\u4e5f\u53ef\u4ee5\u4e0d\u5199<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">EmpDaoA<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">EmpDao<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/&#8230;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6dfb\u52a0\u4e4b\u540e&#xff0c;Bean \u7684\u540d\u79f0\u5c31\u53d8\u4e3a\u81ea\u5df1\u5b9a\u4e49\u7684<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250729234746-68895da2c01bd.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>Bean \u7684\u7ec4\u4ef6\u626b\u63cf&#xff1a;<\/p>\n<ul>\n<li>\u524d\u9762\u58f0\u660e Bean \u7684\u56db\u5927\u6ce8\u89e3&#xff0c;\u82e5\u8981\u60f3\u751f\u6548&#xff0c;\u9700\u8981\u88ab\u7ec4\u4ef6\u626b\u63cf\u6ce8\u89e3 &#064;ComponentScan \u626b\u63cf<\/li>\n<li>&#064;ComponentScan \u6ce8\u89e3\u867d\u7136\u6ca1\u6709\u663e\u793a\u914d\u7f6e&#xff0c;\u4f46\u5b9e\u9645\u4e0a\u5df2\u5305\u542b\u5728\u542f\u52a8\u7c7b\u58f0\u660e\u6ce8\u89e3 &#064;SpringBootApplication \u4e2d&#xff0c;\u9ed8\u8ba4\u626b\u63cf\u7684\u8303\u56f4\u662f\u542f\u52a8\u7c7b\u6240\u5728\u5305\u53ca\u5176\u5b50\u5305<\/li>\n<\/ul>\n<h3>DI \u8be6\u89e3<\/h3>\n<p>&#064;Autowired \u6ce8\u89e3&#xff0c;\u9ed8\u8ba4\u662f\u6309\u7167\u7c7b\u578b\u8fdb\u884c&#xff0c;\u5982\u679c\u5b58\u5728\u591a\u4e2a\u76f8\u540c\u7c7b\u578b\u7684 Bean&#xff0c;\u5c06\u4f1a\u62a5\u51fa\u5982\u4e0b\u9519\u8bef&#xff1a;<\/p>\n<p>Field empService in com.itheima.controller.EmpController required a single bean, but 2 were found:<br \/>\n&#8211; empServiceA: defined in file [E:\\\\springboot &#8211; web &#8211; req &#8211; resp\\\\target\\\\classes\\\\com\\\\itheima\\\\service\\\\impl\\\\EmpServiceA.class<br \/>\n&#8211; empServiceB: defined in file [E:\\\\springboot &#8211; web &#8211; req &#8211; resp\\\\target\\\\classes\\\\com\\\\itheima\\\\service\\\\impl\\\\EmpServiceB.class<\/p>\n<p>Action:<\/p>\n<p>Consider marking one of the beans as &#064;Primary, updating the consumer to accept multiple beans, or using &#064;Qualifier to identify the bean<\/p>\n<p>\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u6848\u6765\u89e3\u51b3&#xff1a;<\/p>\n<ul>\n<li>\n<p>&#064;Primary&#xff1a;\u5982\u679c\u6709\u591a\u4e2a\u76f8\u540c\u7c7b\u578b\u7684 Bean&#xff0c;&#064;Primary \u52a0\u5728\u54ea\u4e2a Bean \u4e0a&#xff0c;\u54ea\u4e2a Bean \u5c31\u751f\u6548<\/p>\n<p> <span class=\"token annotation punctuation\">&#064;Primary<\/span><br \/>\n<span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">EmpServiceA<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">EmpService<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">EmpDao<\/span> empDao<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">listEmp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/&#8230;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<li>\n<p>&#064;Qualifier&#xff1a;\u653e\u5728 Bean \u5185&#xff0c;\u4e0e &#064;Autowired \u914d\u5408\u4f7f\u7528&#xff0c;&#064;Qualifier(\u201cBean \u7684\u540d\u79f0\u201d)<\/p>\n<p> <span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">EmpServiceA<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">EmpService<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Qualifier<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;daoA&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Autowired<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">EmpDao<\/span> empDao<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">listEmp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ &#8230;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<li>\n<p>&#064;Resource&#xff1a;\u7528 &#064;Resource(name &#061; \u201cBean \u7684\u540d\u79f0\u201d) \u6765\u66ff\u6362 &#064;Autowired<\/p>\n<p> <span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">EmpServiceA<\/span> <span class=\"token keyword\">implements<\/span> <span class=\"token class-name\">EmpService<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Resource<\/span><span class=\"token punctuation\">(<\/span>name <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;daoA&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">EmpDao<\/span> empDao<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token annotation punctuation\">&#064;Override<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">List<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">Emp<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> <span class=\"token function\">listEmp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ &#8230;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<\/ul>\n<p>&#064;Resource \u548c &#064;Autowired \u7684\u533a\u522b&#xff1a;<\/p>\n<ul>\n<li>&#064;Autowired \u662f Spring \u6846\u67b6\u63d0\u4f9b\u7684\u6ce8\u89e3&#xff0c;\u800c &#064;Resource \u662f JDK 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