{"id":66412,"date":"2026-01-26T19:11:03","date_gmt":"2026-01-26T11:11:03","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/66412.html"},"modified":"2026-01-26T19:11:03","modified_gmt":"2026-01-26T11:11:03","slug":"04-springboot%e7%bb%bc%e5%90%88%e6%a1%88%e4%be%8b","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/66412.html","title":{"rendered":"04-SpringBoot\u7efc\u5408\u6848\u4f8b"},"content":{"rendered":"<h2>\u4e00\u3001SpringBoot\u4ecb\u7ecd<\/h2>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 JavaWeb&#xff1a; JavaWeb\u9879\u76ee\u662f\u7528\u6765\u63a5\u6536\u522b\u4eba\u53d1\u7ed9\u4f60\u7684\u8bf7\u6c42&#xff0c;javaweb\u4ee3\u7801\u5904\u7406\u8bf7\u6c42&#xff0c;\u5e76\u54cd\u5e94\u3002<\/p>\n<h2>\u4e8c\u3001SpringBoot\u548cSSM\u7684\u5173\u7cfb<\/h2>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 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\u00a0\u00a0<\/p>\n<h3>\u00a0 \u00a0 \u00a0 \u00a0 2. \u9009\u62e9\u4f9d\u8d56<\/h3>\n<p>\u9009\u62e9spring\u00a0 web \u5305\u62ecweb\u5e94\u7528\u7684\u5e38\u7528\u6ce8\u89e3&#xff0c;\u4ee5\u53caweb\u5bb9\u5668&#xff08;\u9ed8\u8ba4tomcat&#xff09;\u3002<\/p>\n<p>\u9009\u62e9lombok&#xff0c;\u4fee\u9970\u5b9e\u4f53\u7c7b\u7684\u6ce8\u89e3\u63d2\u4ef6\u3002<\/p>\n<p>\u8fd9\u91cc\u4e0d\u9009\u4e5f\u53ef\u4ee5\u5728\u4e4b\u540e\u53bbpom.xml\u91cc\u6dfb\u52a0\u4f9d\u8d56\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"1435\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111042-69774bb24b035.png\" width=\"1578\" \/><\/p>\n<p>pom.xml\u4e2d\u7684\u4f9d\u8d56<\/p>\n<p>&lt;dependencies&gt;<br \/>\n    &lt;dependency&gt;<br \/>\n        &lt;groupId&gt;org.springframework.boot&lt;\/groupId&gt;<br \/>\n        &lt;artifactId&gt;spring-boot-starter-web&lt;\/artifactId&gt;<br \/>\n    &lt;\/dependency&gt;<br \/>\n    &lt;dependency&gt;<br \/>\n        &lt;groupId&gt;org.projectlombok&lt;\/groupId&gt;<br \/>\n        &lt;artifactId&gt;lombok&lt;\/artifactId&gt;<br \/>\n        &lt;optional&gt;true&lt;\/optional&gt;<br \/>\n    &lt;\/dependency&gt;<br \/>\n&lt;\/dependencies&gt;<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"378\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111043-69774bb368ac2.png\" width=\"944\" \/><\/p>\n<h3>\u00a0 \u00a0 \u00a0 \u00a0 3.\u81ea\u52a8\u4ea7\u751f\u7684\u6587\u4ef6<\/h3>\n<p>\u521b\u5efa\u597d\u540e\u7684&#xff0c;springboot\u7684\u5de5\u7a0b\u6bd4maven\u7684\u5de5\u7a0b\u591a\u4e86\u4e24\u4e2a\u6587\u4ef6\u3002\u5176\u4e2d&#xff1a;<\/p>\n<p>SpringbootDemoApplication \u662f\u6574\u4e2a\u7a0b\u5e8f\u7684\u542f\u52a8\u7c7b\u3002<\/p>\n<p>application.properties\u662f\u6574\u4e2a\u5de5\u7a0b\u7684\u914d\u7f6e\u6587\u4ef6\u3002<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"433\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111043-69774bb391d18.png\" width=\"856\" \/><\/p>\n<h4>\u00a0 \u00a0 \u00a0 \u00a0 \u8865&#xff1a;\u4e71\u7801\u7684\u89e3\u51b3\u65b9\u6cd5&#xff1a;<\/h4>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"1469\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111043-69774bb3b7173.png\" width=\"1966\" \/><\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p>\n<h2>\u516d\u3001Springboot\u5e94\u7528\u5f00\u53d1<\/h2>\n<h3>\u00a0 \u00a0 \u00a0 \u00a0 \u5e94\u7528\u5f00\u53d1\u7684\u5206\u5c42<\/h3>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u6d4f\u89c8\u5668 &#8211;&gt;\u00a0 \u00a0\u63a7\u5236\u5c42\u00a0 &#8211;&gt;\u00a0 \u670d\u52a1\u5c42 &#8211;&gt;\u00a0 \u6570\u636e\u8bbf\u95ee\u5c42\u00a0 &#8211;&gt;\u00a0 \u6570\u636e\u5e93<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5206\u5c42\u7684\u597d\u5904&#xff1a; \u89e3\u8026<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u63a7\u5236\u5c42 Controller&#xff1a;\u53ea\u8d1f\u8d23\u63a5\u6536\u53c2\u6570\u548c\u8fd4\u56de\u53c2\u6570<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u670d\u52a1\u5c42 Service&#xff1a;\u63d0\u4f9b\u4e00\u4e2a\u4e2a\u670d\u52a1&#xff08;\u4e00\u4e2a\u670d\u52a1\u5c31\u662f\u4e00\u4e2a\u529f\u80fd&#xff0c;\u4e00\u4e2a\u529f\u80fd\u6709\u53ef\u80fd\u8c03\u7528\u6570\u636e\u5e93\u4e5f\u53ef\u4ee5\u4e0d\u8c03\u7528\u6570\u636e\u5e93\u6216\u8005\u8c03\u7528\u591a\u6b21\u6570\u636e\u5e93&#xff09;<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u6570\u636e\u8bbf\u95ee\u5c42 DAO&#xff1a;\u91c7\u7528 mybatis\u6216\u8005 mybatis-plus \u6765\u64cd\u4f5c\u6570\u636e\u5e93\u3002\u5bf9\u6570\u636e\u5e93\u64cd\u4f5c\u8fdb\u884c\u4e86\u5c01\u88c5&#xff08;\u64cd\u4f5c\u5b9e\u4f53\u8ddf\u64cd\u4f5c\u6570\u636e\u4e00\u6837\u7b80\u5355&#xff09;<\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Java\u7f16\u7a0b&#xff1a; \u9762\u5411\u5bf9\u8c61\u7f16\u7a0b&#xff0c;\u4e00\u5207\u7686\u4e3a\u5bf9\u8c61\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u5206\u5c42\u53ca\u5404\u5c42\u804c\u8d23<\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<p id=\"u2e1e1e74\">\u5206\u5c42<\/p>\n<\/td>\n<td>\n<p id=\"u93b16170\">\u540d\u79f0<\/p>\n<\/td>\n<td>\n<p id=\"u87f8b6a5\">\u804c\u8d23<\/p>\n<\/td>\n<td>\n<p id=\"u1bac3b5f\">\u6d89\u53ca\u7684\u6807\u7b7e<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"u22459e54\">controller<\/p>\n<\/td>\n<td>\n<p id=\"udd4e2dce\">\u63a7\u5236\u5c42<\/p>\n<\/td>\n<td>\n<p id=\"udd8397f5\">1\u63a5\u6536\u8bf7\u6c42\u548c\u53c2\u6570<\/p>\n<p id=\"u22eff928\">2\u8c03\u7528\u670d\u52a1\u5c42<\/p>\n<p id=\"uf85e9557\">3 \u8fd4\u56de\u54cd\u5e94\u548c\u7ed3\u679c<\/p>\n<\/td>\n<td>\n<p id=\"u92a126f2\">&#064;RestController<\/p>\n<p id=\"u7e9c4ecd\">&#064;RequestMapping<\/p>\n<p id=\"uc6ba9e7e\">&#064;RequestParam<\/p>\n<p id=\"u0d8af31e\">&#064;RequestBody<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"u6e1ba640\">service<\/p>\n<\/td>\n<td>\n<p id=\"ubd8f2daa\">\u670d\u52a1\u5c42&#xff08;\u4e1a\u52a1\u5c42&#xff09;<\/p>\n<\/td>\n<td>\n<p id=\"u84b42d37\">1\u63a5\u6536\u63a7\u5236\u5c42\u8c03\u7528<\/p>\n<p id=\"u36f57bcd\">2 \u5904\u7406\u4e1a\u52a1<\/p>\n<p id=\"u294cdc2c\">3 \u8fd4\u56de\u7ed3\u679c<\/p>\n<\/td>\n<td>\n<p id=\"u7b479065\">&#064;Service<\/p>\n<p id=\"u5cacb926\">&#064;Autowired<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"u9ef36604\">mapper<\/p>\n<\/td>\n<td>\n<p id=\"u2b936327\">\u6570\u636e\u5c42<\/p>\n<\/td>\n<td>\n<p id=\"ufa8a374a\">1\u63a5\u6536\u670d\u52a1\u5c42\u8c03\u7528<\/p>\n<p id=\"u04c83986\">2\u6570\u636e\u5e93\u7684\u64cd\u4f5c &#xff08;SQL&#xff09;<\/p>\n<p id=\"u2c4a387c\">3 \u8fd4\u56de\u7ed3\u679c<\/p>\n<p id=\"uf9a0afe5\">\n<\/td>\n<td>\n<p id=\"u2a902072\">&#064;Select<\/p>\n<p id=\"ua71b8bac\">&#064;Insert<\/p>\n<p id=\"ucd5c7d40\">&#064;Delete<\/p>\n<p id=\"u3fdeb7b0\">&#064;Update<\/p>\n<p id=\"u12ed5231\">&#064;Param<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u00a0 \u00a0 \u00a0 \u00a0<\/p>\n<h4>1.\u00a0\u63a7\u5236\u5c42&#xff08;controller&#xff09;<\/h4>\n<h5>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u804c\u8d23<\/h5>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a01&#xff09; \u63a5\u6536\u8bf7\u6c42\u548c\u53c2\u6570<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a02&#xff09;\u8c03\u7528\u670d\u52a1\u5c42<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a03&#xff09;\u8fd4\u56de\u54cd\u5e94\u548c\u7ed3\u679c<\/p>\n<h5>\u00a0 \u00a0 \u00a0 \u00a0 \u6ce8\u89e3 \u8bf4\u660e<\/h5>\n<table>\n<tbody>\n<tr>\n<td>\n<p id=\"ub921307e\">\u6ce8\u89e3<\/p>\n<\/td>\n<td>\n<p id=\"ufba7da65\">\u4f4d\u7f6e<\/p>\n<\/td>\n<td>\n<p id=\"ude816dcc\">\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"u293b87cb\">&#064;RestController<\/p>\n<\/td>\n<td>\n<p id=\"u5e056a9a\">\u7c7b<\/p>\n<\/td>\n<td>\n<p id=\"u2b641904\">\u6807\u8bc6\u5165\u53e3\u7c7b<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"ub6256780\">&#064;RequestMapping<\/p>\n<\/td>\n<td>\n<p id=\"u068e45df\">\u65b9\u6cd5<\/p>\n<\/td>\n<td>\n<p id=\"u0648378f\">\u6807\u8bc6\u5165\u53e3\u65b9\u6cd5<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"uc9ba0198\">&#064;GetMapping<\/p>\n<\/td>\n<td>\n<p id=\"u6ed6f969\">\u65b9\u6cd5<\/p>\n<\/td>\n<td>\n<p id=\"uc6472a9d\">\u6807\u8bc6\u5165\u53e3\u65b9\u6cd5GET\u8bf7\u6c42\u4e13\u7528<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"u80fd112a\">&#064;PostMapping<\/p>\n<\/td>\n<td>\n<p id=\"ucfa62f5a\">\u65b9\u6cd5<\/p>\n<\/td>\n<td>\n<p id=\"ua6e6e5a5\">\u6807\u8bc6\u5165\u53e3\u65b9\u6cd5POST\u8bf7\u6c42\u4e13\u7528<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"ua100994f\">&#064;RequestParam<\/p>\n<\/td>\n<td>\n<p id=\"u070dc03f\">\u53c2\u6570<\/p>\n<\/td>\n<td>\n<p id=\"u7891ce8e\">\u63a5\u6536\u8def\u5f84\u4e0a\u7684\u952e\u503c\u5bf9\u53c2\u6570<\/p>\n<p id=\"u40821bd5\">http:\/\/xxxxx\/xx?name&#061;xxx&#038;age&#061;xxx<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"u893fb9d6\">&#064;PathVariable<\/p>\n<\/td>\n<td>\n<p id=\"u2861d067\">\u53c2\u6570<\/p>\n<\/td>\n<td>\n<p id=\"u447fdfbb\">\u63a5\u6536\u8def\u5f84\u4e0a\u7684\u503c<\/p>\n<p id=\"ud7457b28\">http:\/\/xxxxx\/customer\/123<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"ubbaa6f07\">&#064;RequestBody<\/p>\n<\/td>\n<td>\n<p id=\"u4f016e8f\">\u53c2\u6570<\/p>\n<\/td>\n<td>\n<p id=\"u372af018\">\u63a5\u6536\u8bf7\u6c42\u4f53 \u4e2d\u7684\u53c2\u6570<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u00a0<\/p>\n<p>package com.ruangong.springboot2.controller;<\/p>\n<p>import com.ruangong.springboot2.pojo.Customer;<br \/>\nimport org.springframework.stereotype.Controller;<br \/>\nimport org.springframework.web.bind.annotation.*;<\/p>\n<p>\/\/&#064;Controller   \/\/ \u662f\u9700\u8981\u8d70\u89c6\u56fe\u89e3\u6790\u5668\u7684&#xff0c;\u9700\u8981\u8df3\u8f6c\u754c\u9762\u7684<br \/>\n&#064;RestController  \/\/ \u4e0d\u8d70\u89c6\u56fe\u89e3\u6790\u5668&#xff0c;\u5982\u679c\u8fd4\u56de\u5b9e\u4f53&#xff0c;\u4f1a\u5c01\u88c5\u4e3ajson \u6570\u636e<br \/>\npublic class DemoController {<\/p>\n<p>    \/\/http:\/\/localhost:8080\/hello<br \/>\n    &#064;RequestMapping(&#034;\/hello&#034;)<br \/>\n    public String hello(){<br \/>\n        System.out.println(&#034;\u6211\u662fhello&#034;);<br \/>\n        return &#034;hello!&#034;;<br \/>\n    }<\/p>\n<p>    \/\/http:\/\/localhost:8080\/hello2?name&#061;zhangsan&amp;age&#061;28<br \/>\n    &#064;RequestMapping(&#034;\/hello2&#034;)<br \/>\n    public String hello2(String name,int age){<br \/>\n        System.out.println(&#034;\u6211\u662fhello&#034;);<br \/>\n        return &#034;hello &#034;&#043;name&#043;&#034;,\u5e74\u9f84:&#034;&#043;age;<br \/>\n    }<\/p>\n<p>    \/\/http:\/\/localhost:8080\/hello3?ename&#061;zhangsan<br \/>\n    &#064;RequestMapping(&#034;\/hello3&#034;)<br \/>\n    public String hello3(&#064;RequestParam(&#034;ename&#034;) String name){<br \/>\n        System.out.println(&#034;\u6211\u662fhello&#034;);<br \/>\n        return &#034;hello &#034;&#043;name;<br \/>\n    }<\/p>\n<p>    &#064;RequestMapping(&#034;\/hello4&#034;)<br \/>\n    public String hello4(&#064;RequestBody Customer customer){<br \/>\n        System.out.println(customer);<br \/>\n        return &#034;hello &#034;&#043;customer.getName();<br \/>\n    }<\/p>\n<p>    \/\/ restful \u662f\u4e00\u79cd\u98ce\u683c<br \/>\n    \/\/http:\/\/localhost:8080\/hello5\/zhangsan\/30<br \/>\n    &#064;RequestMapping(&#034;\/hello5\/{name}\/{age}&#034;)<br \/>\n    public String hello5(&#064;PathVariable(&#034;name&#034;) String name,&#064;PathVariable(&#034;age&#034;) int age){<br \/>\n        System.out.println(name);<br \/>\n        System.out.println(age);<br \/>\n        return &#034;hello &#034;&#043;name;<br \/>\n    }<br \/>\n}<\/p>\n<p>\u4f7f\u7528API Fox \u5de5\u5177\u6d4b\u8bd5&#xff0c;\u4e5f\u53ef\u4ee5\u4f7f\u7528postman<\/p>\n<h4>Postman\u7684\u4e00\u4e2a\u4f7f\u7528&#xff1a;<\/h4>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"1529\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111045-69774bb54285e.png\" width=\"2538\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"1529\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111047-69774bb73e360.png\" width=\"2538\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"1529\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111049-69774bb922780.png\" width=\"2538\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"1531\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111050-69774bbaa5fad.png\" width=\"2538\" \/><\/p>\n<p>web \u8bf7\u6c42\u6709\u5f88\u591a\u79cd&#xff0c;\u4f46\u662f\u6211\u4eec\u53ea\u9700\u8981\u638c\u63e1 Get \u548c Post<\/p>\n<p>\u4f7f\u7528 requestbody\u524d&#xff1a;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"649\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111052-69774bbcca3af.png\" width=\"1380\" \/><\/p>\n<p>\u4f7f\u7528\u540e&#xff1a;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"1024\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111053-69774bbd57ece.png\" width=\"2548\" \/><\/p>\n<\/p>\n<h4>2.\u5b9e\u4f53\u7c7b&#xff08;bean\u7c7b&#xff09;<\/h4>\n<p>\u5b9e\u4f53\u7c7b\u7684\u6ce8\u89e3\u7531lombok\u4f9d\u8d56\u63d0\u4f9b\u3002<\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<p id=\"uafa47fc3\">\u6ce8\u89e3<\/p>\n<\/td>\n<td>\n<p id=\"u13f1ebc7\">\u4f4d\u7f6e<\/p>\n<\/td>\n<td>\n<p id=\"u5be83706\">\u8bf4\u660e<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"uf5d24e72\">&#064;NoArgsConstructor<\/p>\n<\/td>\n<td>\n<p id=\"u1d03f5a7\">\u7c7b<\/p>\n<\/td>\n<td>\n<p id=\"uea5d52f9\">\u589e\u52a0\u65e0\u53c2\u6784\u9020\u51fd\u6570<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"u02085471\">&#064;AllArgsConstructor<\/p>\n<\/td>\n<td>\n<p id=\"u0cbec781\">\u7c7b<\/p>\n<\/td>\n<td>\n<p id=\"u96985509\">\u589e\u52a0\u5168\u53c2\u6784\u9020\u51fd\u6570<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"u27eed0a5\">&#064;Data<\/p>\n<\/td>\n<td>\n<p id=\"u037320ea\">\u7c7b<\/p>\n<\/td>\n<td>\n<p id=\"ubb8671d1\">\u589e\u52a0getter setter tostring \u65b9\u6cd5<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>package com.bigdata.springbootdemo.pojo;<\/p>\n<p>import lombok.AllArgsConstructor;<br \/>\nimport lombok.Data;<br \/>\nimport lombok.NoArgsConstructor;<\/p>\n<p>&#064;Data<br \/>\n&#064;AllArgsConstructor<br \/>\n&#064;NoArgsConstructor<br \/>\npublic class Customer {<\/p>\n<p>    String id;<\/p>\n<p>    String name;<\/p>\n<p>    int age;<br \/>\n}<\/p>\n<h4>3.\u670d\u52a1\u5c42&#xff08;Service\u5c42&#xff09;<\/h4>\n<h5>\u00a0\u00a0\u00a0\u00a0\u804c\u8d23<\/h5>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0&#xff08;1&#xff09;\u63a5\u6536\u63a7\u5236\u5c42\u8c03\u7528<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 &#xff08;2&#xff09;\u5904\u7406\u4e1a\u52a1<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 &#xff08;3&#xff09;\u8fd4\u56de\u7ed3\u679c<\/p>\n<h5>\u00a0\u00a0\u00a0\u00a0\u6ce8\u89e3\u8bf4\u660e<\/h5>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"816\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111054-69774bbee1dcf.png\" width=\"2704\" \/><\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<p id=\"uf4f5fc0a\">\u6ce8\u89e3<\/p>\n<\/td>\n<td>\n<p id=\"ufba48740\">\u4f4d\u7f6e<\/p>\n<\/td>\n<td>\n<p id=\"uad867574\">\u8bf4\u660e<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"u9a2df0c4\">&#064;Service<\/p>\n<\/td>\n<td>\n<p id=\"u1cb073d7\">\u7c7b<\/p>\n<\/td>\n<td>\n<p id=\"u98e8ab8e\">\u58f0\u660e\u8be5\u7c7b\u4e3aService\u5c42Spring\u5bb9\u5668\u7ec4\u4ef6<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"udc0dcfb2\">&#064;Component<\/p>\n<\/td>\n<td>\n<p id=\"u8dba4e1e\">\u7c7b<\/p>\n<\/td>\n<td>\n<p id=\"u227a1994\">\u58f0\u660e\u8be5\u7c7b\u4e3aSpring\u5bb9\u5668\u7ec4\u4ef6&#xff0c;\u529f\u80fd\u4e0a\u4e8e&#064;Service\u6ca1\u6709\u533a\u522b<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"u44e830c2\">&#064;Autowired<\/p>\n<\/td>\n<td>\n<p id=\"u734a2cdb\">\u7c7b<\/p>\n<\/td>\n<td>\n<p id=\"u2a80069a\">\u81ea\u52a8\u5c06Spring\u5bb9\u5668\u4e2d\u7684\u7ec4\u4ef6&#xff0c;\u88c5\u914d\u5230\u5f15\u7528\u4e0a\u3002<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Service\u5c42\u7531\u4e24\u4e2a\u7c7b\u7ec4\u6210&#xff0c;\u4e00\u4e2a\u63a5\u53e3\u548c\u4e00\u4e2a\u5b9e\u4f53\u7c7b\u7ec4\u6210\u3002<\/p>\n<p>package com.ruangong.springboot2.service;<\/p>\n<p>import com.ruangong.springboot2.pojo.Customer;<\/p>\n<p>public interface DemoService {<br \/>\n    void saveCustomer(Customer customer);<br \/>\n}<\/p>\n<p>\u00a0 \u00a0\u00a0<\/p>\n<p>package com.ruangong.springboot2.service.impl;<\/p>\n<p>import com.ruangong.springboot2.pojo.Customer;<br \/>\nimport com.ruangong.springboot2.service.DemoService;<br \/>\nimport org.springframework.stereotype.Service;<\/p>\n<p>&#064;Service<br \/>\npublic class DemoServiceImpl implements DemoService {<br \/>\n    &#064;Override<br \/>\n    public void saveCustomer(Customer customer) {<br \/>\n        System.out.println(customer);<br \/>\n        System.out.println(&#034;\u4fdd\u5b58\u5ba2\u6237\u8d44\u6599\u6210\u529f&#xff01;&#034;);<br \/>\n    }<br \/>\n}<\/p>\n<p>CustomerController\u4e2d\u589e\u52a0\u7531controller\u8bbf\u95eeservice\u5c42\u7684\u7c7b\u3002<\/p>\n<p>package com.ruangong.springboot2.controller;<\/p>\n<p>import com.ruangong.springboot2.pojo.Customer;<br \/>\nimport com.ruangong.springboot2.service.DemoService;<br \/>\nimport org.springframework.beans.factory.annotation.Autowired;<br \/>\nimport org.springframework.stereotype.Controller;<br \/>\nimport org.springframework.web.bind.annotation.*;<\/p>\n<p>\/\/&#064;Controller   \/\/ \u662f\u9700\u8981\u8d70\u89c6\u56fe\u89e3\u6790\u5668\u7684&#xff0c;\u9700\u8981\u8df3\u8f6c\u754c\u9762\u7684<br \/>\n&#064;RestController  \/\/ \u4e0d\u8d70\u89c6\u56fe\u89e3\u6790\u5668&#xff0c;\u5982\u679c\u8fd4\u56de\u5b9e\u4f53&#xff0c;\u4f1a\u5c01\u88c5\u4e3ajson \u6570\u636e<br \/>\npublic class DemoController {<\/p>\n<p>    \/\/ \u7701\u7565\u4e86\u4e00\u4e9b\u4ee3\u7801<\/p>\n<p>    &#064;Autowired<br \/>\n    DemoService demoService;<\/p>\n<p>    &#064;RequestMapping(&#034;\/save&#034;)<br \/>\n    public String save(&#064;RequestBody Customer customer){<br \/>\n        demoService.saveCustomer(customer);<br \/>\n        return &#034;success&#034;;<br \/>\n    }<\/p>\n<p>}<\/p>\n<p>\u4f7f\u7528postman \u8c03\u7528\u63a5\u53e3&#xff1a;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"944\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111056-69774bc0bb7e2.png\" width=\"1740\" \/><\/p>\n<\/p>\n<h4>4.\u6570\u636e\u5c42&#xff08;mapper&#xff09;mybatis<\/h4>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 MyBatis\u662f\u4e00\u6b3e\u4f18\u79c0\u7684\u6301\u4e45\u5c42\u6846\u67b6&#xff0c;\u5b83\u652f\u6301\u81ea\u5b9a\u4e49SQL\u3002MyBatis\u514d\u9664\u4e86\u51e0\u4e4e\u6240\u6709\u7684JDBC\u4ee3\u7801\u4ee5\u53ca\u8bbe\u7f6e\u53c2\u6570\u548c\u83b7\u53d6\u7ed3\u679c\u96c6\u7684\u5de5\u4f5c\u3002MyBatis\u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u7684XML\u6216\u6ce8\u89e3\u6765\u914d\u7f6e\u548c\u6620\u5c04\u3002<\/p>\n<h5>\u00a0 \u00a0 \u00a0 \u00a0 \u521b\u5efa\u8868<\/h5>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"285\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111057-69774bc19aace.png\" width=\"1197\" \/><\/p>\n<p>\u65b0\u5efa\u6570\u636e\u5e93 ruangong<\/p>\n<p>CREATE TABLE &#096;customer&#096; (<br \/>\n  &#096;id&#096; bigint(20) NOT NULL AUTO_INCREMENT,<br \/>\n  &#096;name&#096; varchar(200) DEFAULT NULL,<br \/>\n  &#096;age&#096; bigint(20) DEFAULT NULL,<br \/>\n  PRIMARY KEY (&#096;id&#096;)<br \/>\n)<br \/>\nENGINE&#061;InnoDB DEFAULT CHARSET&#061;utf8;<\/p>\n<h5>\u00a0 \u00a0 \u00a0 \u00a0 \u5f15\u5165\u4f9d\u8d56<\/h5>\n<p>&lt;!&#8211;\u4e00\u5b9a\u8981\u6ce8\u610fspringboot\u548cmybatis\u7684\u7248\u672c\u95ee\u9898&#xff0c;\u5426\u5219\u62a5\u9519&#8211;&gt;<br \/>\n&lt;dependency&gt;<br \/>\n    &lt;groupId&gt;org.mybatis.spring.boot&lt;\/groupId&gt;<br \/>\n    &lt;artifactId&gt;mybatis-spring-boot-starter&lt;\/artifactId&gt;<br \/>\n    &lt;version&gt;3.0.3&lt;\/version&gt;<br \/>\n&lt;\/dependency&gt;<\/p>\n<p>&lt;dependency&gt;<br \/>\n  &lt;groupId&gt;org.springframework.boot&lt;\/groupId&gt;<br \/>\n  &lt;artifactId&gt;spring-boot-starter-jdbc&lt;\/artifactId&gt;<br \/>\n&lt;\/dependency&gt;<\/p>\n<p>&lt;dependency&gt;<br \/>\n  &lt;groupId&gt;com.mysql&lt;\/groupId&gt;<br \/>\n  &lt;artifactId&gt;mysql-connector-j&lt;\/artifactId&gt;<br \/>\n  &lt;scope&gt;runtime&lt;\/scope&gt;<br \/>\n&lt;\/dependency&gt;<\/p>\n<p>&lt;dependency&gt;<br \/>\n            &lt;groupId&gt;mysql&lt;\/groupId&gt;<br \/>\n            &lt;artifactId&gt;mysql-connector-java&lt;\/artifactId&gt;<br \/>\n            &lt;version&gt;8.0.30&lt;\/version&gt;<br \/>\n &lt;\/dependency&gt;<\/p>\n<h5>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0application.properties<\/h5>\n<p>spring.application.name&#061;SpringBoot2<br \/>\nspring.datasource.url&#061;jdbc:mysql:\/\/localhost:3306\/ruangong?serverTimezone&#061;GMT%2B8&amp;characterEncoding&#061;utf-8<br \/>\nspring.datasource.driver-class-name&#061;com.mysql.cj.jdbc.Driver<br \/>\nspring.datasource.username&#061;root<br \/>\nspring.datasource.password&#061;root<br \/>\nserver.port&#061;80<\/p>\n<h5>\u00a0 \u00a0 \u00a0 \u00a0 \u521b\u5efaMapper\u63a5\u53e3<\/h5>\n<p>package com.bigdata.springdemo.mapper;<\/p>\n<p>import com.bigdata.springdemo.entity.Customer;<br \/>\nimport org.apache.ibatis.annotations.*;<\/p>\n<p>import java.util.List;<\/p>\n<p>&#064;Mapper<br \/>\npublic interface CustomerMapper {<\/p>\n<p>    &#064;Insert(&#034;insert into customer(name,age) values (#{customer.name}, #{customer.age} )&#034;)<br \/>\n    void saveCustomer(&#064;Param(&#034;customer&#034;) Customer customer);<\/p>\n<p>    &#064;Select(&#034;select * from customer&#034;)<br \/>\n    public List&lt;Customer&gt; selectCustomers();<\/p>\n<p>    &#064;Select(&#034;select * from customer where id&#061;#{id}&#034;)<br \/>\n    public Customer selectCustomerById(String id);<\/p>\n<p>    &#064;Update(&#034;update customer set name&#061;#{customer.name} where id&#061;#{customer.id}&#034;)<br \/>\n    void updateCustomer(&#064;Param(&#034;customer&#034;) Customer customer);<\/p>\n<p>    &#064;Delete(&#034;delete from customer where id&#061;#{id}&#034;)<br \/>\n    void deleteCustomer(String id);<\/p>\n<p>}<\/p>\n<h5>\u00a0 \u00a0 \u00a0 \u00a0 \u6ce8\u89e3\u8bf4\u660e<\/h5>\n<table>\n<tbody>\n<tr>\n<td>\n<p id=\"u12bf1cc0\">\u6ce8\u89e3<\/p>\n<\/td>\n<td>\n<p id=\"u4f463cb2\">\u4f4d\u7f6e<\/p>\n<\/td>\n<td>\n<p id=\"u99dc868c\">\u8bf4\u660e<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"u250e1ca1\">&#064;Mapper<\/p>\n<\/td>\n<td>\n<p id=\"ue3571486\">\u7c7b<\/p>\n<\/td>\n<td>\n<p id=\"uddb19b11\">\u6807\u8bc6Mapper\u63a5\u53e3<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"ue7d29726\">&#064;Select<\/p>\n<\/td>\n<td>\n<p id=\"ubd709add\">\u65b9\u6cd5<\/p>\n<\/td>\n<td>\n<p id=\"u4786a000\">\u67e5\u8be2\u8bed\u53e5<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"u777197e7\">&#064;Update<\/p>\n<\/td>\n<td>\n<p id=\"ua3285215\">\u65b9\u6cd5<\/p>\n<\/td>\n<td>\n<p id=\"ua7cee989\">\u4fee\u6539\u8bed\u53e5<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"uaa427759\">&#064;Delete<\/p>\n<\/td>\n<td>\n<p id=\"u2ee0c295\">\u65b9\u6cd5<\/p>\n<\/td>\n<td>\n<p id=\"ub49ec1b4\">\u5220\u9664\u8bed\u53e5<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"u239de6d6\">&#064;Insert<\/p>\n<\/td>\n<td>\n<p id=\"ub3186991\">\u65b9\u6cd5<\/p>\n<\/td>\n<td>\n<p id=\"ua26bd27a\">\u63d2\u5165\u8bed\u53e5<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"u75c1f6e4\">&#064;Param<\/p>\n<\/td>\n<td>\n<p id=\"ud937b85c\">\u53c2\u6570<\/p>\n<\/td>\n<td>\n<p id=\"ue366f4b0\">\u6807\u8bc6SQL\u53c2\u6570<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u53c2\u6570\u66ff\u4ee3\u7b26<\/h5>\n<table>\n<tbody>\n<tr>\n<td>\n<p id=\"u310c5d0b\">\u6ce8\u89e3<\/p>\n<\/td>\n<td>\n<p id=\"ubf57f983\">\u8bf4\u660e<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"u6ace510c\">#{}<\/p>\n<\/td>\n<td>\n<p id=\"uce1e53f9\">\u4f1a\u8bc6\u522b\u53c2\u6570\u7684\u7c7b\u578b\u4f1a\u81ea\u52a8\u8865\u5168\u5355\u5f15<\/p>\n<p id=\"u360c2ee5\">\u672c\u8eab\u5b57\u7b26\u4e32\u503c\u4e2d\u7684\u7279\u6b8a\u7b26\u53f7\u4f1a\u88ab\u66ff\u6362\u3001\u8f6c\u4e49<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p id=\"ub7d3651c\">${}<\/p>\n<\/td>\n<td>\n<p id=\"uf1c3c1fb\">\u53c2\u6570\u539f\u503c&#xff08;\u4e00\u822c\u7a0b\u5e8f\u4e2d\u52a8\u6001\u7ec4\u5408sql&#xff09;<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"964\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111057-69774bc1d09ed.png\" width=\"1544\" \/><\/p>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"584\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111058-69774bc2c62df.png\" width=\"1504\" \/>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p>\n<h5>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Service\u5c42\u4e2d\u52a0\u5165\u8c03\u7528\u65b9\u6cd5<\/h5>\n<p>package com.bigdata.springdemo.service;<\/p>\n<p>import com.bigdata.springdemo.entity.Customer;<\/p>\n<p>import java.util.List;<\/p>\n<p>public interface CustomerService {<\/p>\n<p>    \/\/ \u5b9a\u4e49\u89c4\u8303<br \/>\n    public void saveCustomer(Customer customer);<\/p>\n<p>    public void updateCustomer(Customer customer);<\/p>\n<p>    public void deleteCustomer(String id);<\/p>\n<p>    public Customer selectCustomers(String id);<\/p>\n<p>    public List&lt;Customer&gt; selectCustomers();<br \/>\n}<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0<\/p>\n<p>package com.bigdata.springdemo.service.impl;<\/p>\n<p>import com.bigdata.springdemo.entity.Customer;<br \/>\nimport com.bigdata.springdemo.mapper.CustomerMapper;<br \/>\nimport com.bigdata.springdemo.service.CustomerService;<br \/>\nimport org.springframework.beans.factory.annotation.Autowired;<br \/>\nimport org.springframework.stereotype.Service;<\/p>\n<p>import javax.annotation.Resource;<br \/>\nimport java.util.List;<\/p>\n<p>&#064;Service<br \/>\npublic class CustomerServiceImpl implements CustomerService {<\/p>\n<p>    &#064;Autowired<br \/>\n    CustomerMapper customerMapper;<br \/>\n    &#064;Override<br \/>\n    public void saveCustomer(Customer customer) {<\/p>\n<p>        customerMapper.saveCustomer(customer);<br \/>\n        System.out.println(&#034;\u4fdd\u5b58\u6210\u529f&#xff01;&#xff01;&#034;);<br \/>\n    }<\/p>\n<p>    &#064;Override<br \/>\n    public void updateCustomer(Customer customer) {<br \/>\n        customerMapper.updateCustomer(customer);<br \/>\n    }<\/p>\n<p>    &#064;Override<br \/>\n    public void deleteCustomer(String id) {<\/p>\n<p>        customerMapper.deleteCustomer(id);<br \/>\n    }<\/p>\n<p>    &#064;Override<br \/>\n    public Customer selectCustomers(String id) {<br \/>\n        return customerMapper.selectCustomerById(id);<br \/>\n    }<\/p>\n<p>    &#064;Override<br \/>\n    public List&lt;Customer&gt; selectCustomers() {<br \/>\n        return customerMapper.selectCustomers();<br \/>\n    }<br \/>\n}<\/p>\n<p>package com.ruangong.springboot2.controller;<\/p>\n<p>import com.ruangong.springboot2.pojo.Customer;<br \/>\nimport com.ruangong.springboot2.service.CustomerService;<br \/>\nimport org.springframework.beans.factory.annotation.Autowired;<br \/>\nimport org.springframework.web.bind.annotation.PathVariable;<br \/>\nimport org.springframework.web.bind.annotation.RequestBody;<br \/>\nimport org.springframework.web.bind.annotation.RequestMapping;<br \/>\nimport org.springframework.web.bind.annotation.RestController;<\/p>\n<p>import java.util.List;<\/p>\n<p>&#064;RestController<br \/>\npublic class CustomerController {<\/p>\n<p>    &#064;Autowired<br \/>\n    CustomerService customerService;<\/p>\n<p>    &#064;RequestMapping(&#034;\/saveCustomer&#034;)<br \/>\n    public String saveCustomer(&#064;RequestBody Customer customer){<br \/>\n        customerService.saveCustomer(customer);<br \/>\n        return &#034;success&#034;;<br \/>\n    }<\/p>\n<p>    \/\/ restful \u98ce\u683c<br \/>\n    &#064;RequestMapping(&#034;\/delete\/{id}&#034;)<br \/>\n    public String deleteCustomerById(&#064;PathVariable(&#034;id&#034;) String id){<br \/>\n        customerService.deleteCustomer(id);<br \/>\n        return &#034;\u5220\u9664customer\u6210\u529f&#034;;<br \/>\n    }<\/p>\n<p>    &#064;RequestMapping(&#034;\/updateCustomer&#034;)<br \/>\n    public void updateCustomer(&#064;RequestBody Customer customer){<br \/>\n        customerService.updateCustomer(customer);<br \/>\n        System.out.println(&#034;\u4fee\u6539customer\u6210\u529f&#034;);<br \/>\n    }<\/p>\n<p>    &#064;RequestMapping(&#034;\/selectCustomerById&#034;)<br \/>\n    public Customer selectCustomer(String id){<br \/>\n        Customer customer &#061; customerService.selectCustomers(id);<br \/>\n        return customer;<br \/>\n    }<\/p>\n<p>    &#064;RequestMapping(&#034;\/selectCustomers&#034;)<br \/>\n    public List&lt;Customer&gt; selectCustomers(){<br \/>\n        List&lt;Customer&gt; customers &#061; customerService.selectCustomers();<br \/>\n        return customers;<br \/>\n    }<br \/>\n}<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"622\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111059-69774bc3460c4.png\" width=\"1680\" \/>\u00a0 \u00a0 \u00a0\u00a0<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"1174\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111059-69774bc3c320f.png\" width=\"1744\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"1084\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111100-69774bc49ab39.png\" width=\"1778\" \/><\/p>\n<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"914\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260126111101-69774bc56687a.png\" width=\"1684\" \/><\/p>\n<h4>5.MyBatis-Plus<\/h4>\n<h5>\u00a0 \u00a0 \u00a0 \u00a0 \u5f15\u5165mybatis\u4f9d\u8d56<\/h5>\n<p>&lt;?xml version&#061;&#034;1.0&#034; encoding&#061;&#034;UTF-8&#034;?&gt;<br \/>\n&lt;project xmlns&#061;&#034;http:\/\/maven.apache.org\/POM\/4.0.0&#034; xmlns:xsi&#061;&#034;http:\/\/www.w3.org\/2001\/XMLSchema-instance&#034;<br \/>\n         xsi:schemaLocation&#061;&#034;http:\/\/maven.apache.org\/POM\/4.0.0 https:\/\/maven.apache.org\/xsd\/maven-4.0.0.xsd&#034;&gt;<br \/>\n    &lt;modelVersion&gt;4.0.0&lt;\/modelVersion&gt;<br \/>\n    &lt;!&#8211;&lt;parent&gt;<br \/>\n        &lt;groupId&gt;org.springframework.boot&lt;\/groupId&gt;<br \/>\n        &lt;artifactId&gt;spring-boot-starter-parent&lt;\/artifactId&gt;<br \/>\n        &lt;version&gt;3.5.9&lt;\/version&gt;<br \/>\n        &lt;relativePath\/&gt; &amp;lt;!&amp;ndash; lookup parent from repository &amp;ndash;&amp;gt;<br \/>\n    &lt;\/parent&gt;&#8211;&gt;<br \/>\n    &lt;groupId&gt;com.bigdata&lt;\/groupId&gt;<br \/>\n    &lt;artifactId&gt;demo3&lt;\/artifactId&gt;<br \/>\n    &lt;version&gt;0.0.1-SNAPSHOT&lt;\/version&gt;<br \/>\n    &lt;name&gt;demo3&lt;\/name&gt;<br \/>\n    &lt;description&gt;demo3&lt;\/description&gt;<br \/>\n    &lt;properties&gt;<br \/>\n        &lt;java.version&gt;1.8&lt;\/java.version&gt;<br \/>\n        &lt;spring-cloud-alibaba.version&gt;2.2.2.RELEASE&lt;\/spring-cloud-alibaba.version&gt;<br \/>\n        &lt;spring-cloud.version&gt;Hoxton.SR8&lt;\/spring-cloud.version&gt;<br \/>\n        &lt;mybatis-plus.version&gt;3.5.5&lt;\/mybatis-plus.version&gt;<br \/>\n        &lt;velocity.version&gt;2.0&lt;\/velocity.version&gt;<br \/>\n        &lt;swagger.version&gt;2.9.2&lt;\/swagger.version&gt;<br \/>\n        &lt;swagger-bootstrap-ui.version&gt;1.9.2&lt;\/swagger-bootstrap-ui.version&gt;<br \/>\n        &lt;commons-lang3.version&gt;3.9&lt;\/commons-lang3.version&gt;<br \/>\n        &lt;commons-fileupload.version&gt;1.3.1&lt;\/commons-fileupload.version&gt;<br \/>\n        &lt;commons-io.version&gt;2.6&lt;\/commons-io.version&gt;<br \/>\n        &lt;fastjson.version&gt;1.2.28&lt;\/fastjson.version&gt;<br \/>\n        &lt;gson.version&gt;2.8.6&lt;\/gson.version&gt;<br \/>\n        &lt;json.version&gt;20170516&lt;\/json.version&gt;<br \/>\n        &lt;jodatime.version&gt;2.10.1&lt;\/jodatime.version&gt;<br \/>\n        &lt;jwt.version&gt;0.7.0&lt;\/jwt.version&gt;<br \/>\n        &lt;httpclient.version&gt;4.5.1&lt;\/httpclient.version&gt;<br \/>\n    &lt;\/properties&gt;<\/p>\n<p>    &lt;parent&gt;<br \/>\n        &lt;groupId&gt;org.springframework.boot&lt;\/groupId&gt;<br \/>\n        &lt;artifactId&gt;spring-boot-starter-parent&lt;\/artifactId&gt;<br \/>\n        &lt;version&gt;2.3.4.RELEASE&lt;\/version&gt;<br \/>\n        &lt;relativePath\/&gt; &lt;!&#8211; lookup parent from repository &#8211;&gt;<br \/>\n    &lt;\/parent&gt;<\/p>\n<p>    &lt;dependencies&gt;<br \/>\n        &lt;dependency&gt;<br \/>\n            &lt;groupId&gt;org.springframework.boot&lt;\/groupId&gt;<br \/>\n            &lt;artifactId&gt;spring-boot-starter-web&lt;\/artifactId&gt;<br \/>\n        &lt;\/dependency&gt;<br \/>\n        &lt;dependency&gt;<br \/>\n            &lt;groupId&gt;org.springframework.boot&lt;\/groupId&gt;<br \/>\n            &lt;artifactId&gt;spring-boot-starter-test&lt;\/artifactId&gt;<br \/>\n        &lt;\/dependency&gt;<br \/>\n        &lt;!&#8211;mybatis-plus&#8211;&gt;<br \/>\n        &lt;dependency&gt;<br \/>\n            &lt;groupId&gt;com.baomidou&lt;\/groupId&gt;<br \/>\n            &lt;artifactId&gt;mybatis-plus-boot-starter&lt;\/artifactId&gt;<br \/>\n            &lt;version&gt;${mybatis-plus.version}&lt;\/version&gt;<br \/>\n        &lt;\/dependency&gt;<br \/>\n        &lt;!&#8211;mybatis-plus \u4ee3\u7801\u751f\u6210\u5668&#8211;&gt;<br \/>\n        &lt;dependency&gt;<br \/>\n            &lt;groupId&gt;com.baomidou&lt;\/groupId&gt;<br \/>\n            &lt;artifactId&gt;mybatis-plus-generator&lt;\/artifactId&gt;<br \/>\n            &lt;version&gt;${mybatis-plus.version}&lt;\/version&gt;<br \/>\n        &lt;\/dependency&gt;<br \/>\n        &lt;!&#8211; Mybatis Plus \u4ee3\u7801\u751f\u6210\u5668\u6a21\u677f\u5f15\u64ce,  &#8211;&gt;<br \/>\n        &lt;dependency&gt;<br \/>\n            &lt;groupId&gt;org.apache.velocity&lt;\/groupId&gt;<br \/>\n            &lt;artifactId&gt;velocity-engine-core&lt;\/artifactId&gt;<br \/>\n            &lt;version&gt;${velocity.version}&lt;\/version&gt;<br \/>\n        &lt;\/dependency&gt;<\/p>\n<p>        &lt;dependency&gt;<br \/>\n            &lt;groupId&gt;org.projectlombok&lt;\/groupId&gt;<br \/>\n            &lt;artifactId&gt;lombok&lt;\/artifactId&gt;<br \/>\n        &lt;\/dependency&gt;<\/p>\n<p>        &lt;dependency&gt;<br \/>\n            &lt;groupId&gt;mysql&lt;\/groupId&gt;<br \/>\n            &lt;artifactId&gt;mysql-connector-java&lt;\/artifactId&gt;<br \/>\n        &lt;\/dependency&gt;<\/p>\n<p>        &lt;dependency&gt;<br \/>\n            &lt;groupId&gt;org.springframework.boot&lt;\/groupId&gt;<br \/>\n            &lt;artifactId&gt;spring-boot-starter-freemarker&lt;\/artifactId&gt;<br \/>\n        &lt;\/dependency&gt;<\/p>\n<p>        &lt;!&#8211; Spring Data Commons \u505a\u5206\u9875\u6709\u7528&#8211;&gt;<br \/>\n        &lt;dependency&gt;<br \/>\n            &lt;groupId&gt;org.springframework.data&lt;\/groupId&gt;<br \/>\n            &lt;artifactId&gt;spring-data-commons&lt;\/artifactId&gt;<br \/>\n        &lt;\/dependency&gt;<\/p>\n<p>    &lt;\/dependencies&gt;<\/p>\n<p>&lt;\/project&gt;<\/p>\n<h5>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0 \u589e\u52a0Mybatis-plus\u89c4\u8303\u7684\u670d\u52a1\u5c42\u548c\u6570\u636e\u5c42<\/h5>\n<p>package com.bigdata.springbootdemo.mapper;<\/p>\n<p>import com.baomidou.mybatisplus.core.mapper.BaseMapper;<br \/>\nimport com.bigdata.springbootdemo.pojo.Customer;<br \/>\nimport org.apache.ibatis.annotations.*;<\/p>\n<p>import java.util.List;<\/p>\n<p>&#064;Mapper<br \/>\npublic interface CustomerMapper2 extends BaseMapper&lt;Customer&gt; {<br \/>\n}<\/p>\n<p>package com.bigdata.springbootdemo.service;<\/p>\n<p>import com.baomidou.mybatisplus.extension.service.IService;<br \/>\nimport com.bigdata.springbootdemo.pojo.Customer;<\/p>\n<p>public interface CustomerService2 extends IService&lt;Customer&gt; {<br \/>\n}<\/p>\n<h5>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0ServiceImpl\u5b9e\u73b0\u7c7b<\/h5>\n<p>package com.ruangong.springboot2.service.impl;<\/p>\n<p>import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;<br \/>\nimport com.ruangong.springboot2.mapper.CustomerMapper;<br \/>\nimport com.ruangong.springboot2.mapper.CustomerMapper2;<br \/>\nimport com.ruangong.springboot2.pojo.Customer;<br \/>\nimport com.ruangong.springboot2.service.CustomerService;<br \/>\nimport com.ruangong.springboot2.service.CustomerService2;<br \/>\nimport org.springframework.stereotype.Service;<\/p>\n<p>&#064;Service<br \/>\npublic class CustomerImpl2 extends ServiceImpl&lt;CustomerMapper2, Customer&gt; implements CustomerService2 {<br \/>\n}<\/p>\n<p id=\"u32a24671\">\u53ea\u8981\u52a0\u4e0a\u8fd9\u4e2a\u4e09\u4e2a\u7ee7\u627f\u3002\u5728controller \u4e2d\u76f4\u63a5\u5c31\u53ef\u4ee5\u4f7f\u7528CRUD&#xff08;\u589e\u5220\u6539\u67e5&#xff09;\u547d\u4ee4\u3002<\/p>\n<h5>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Controller\u76f4\u63a5\u8c03\u7528\u5c01\u88c5\u65b9\u6cd5<\/h5>\n<p>package com.ruangong.springboot2.controller;<\/p>\n<p>import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;<br \/>\nimport com.ruangong.springboot2.pojo.Customer;<br \/>\nimport com.ruangong.springboot2.service.CustomerService2;<br \/>\nimport org.springframework.beans.factory.annotation.Autowired;<br \/>\nimport org.springframework.web.bind.annotation.PathVariable;<br \/>\nimport org.springframework.web.bind.annotation.RequestBody;<br \/>\nimport org.springframework.web.bind.annotation.RequestMapping;<br \/>\nimport org.springframework.web.bind.annotation.RestController;<\/p>\n<p>import java.util.List;<\/p>\n<p>&#064;RestController<br \/>\npublic class CustomerController2 {<\/p>\n<p>    &#064;Autowired<br \/>\n    CustomerService2 customerService2;<\/p>\n<p>    &#064;RequestMapping(&#034;\/saveCustomer2&#034;)<br \/>\n    public String saveCustomer(&#064;RequestBody Customer customer){<br \/>\n        customerService2.save(customer);<br \/>\n        return &#034;success&#034;;<br \/>\n    }<\/p>\n<p>    \/\/ restful \u98ce\u683c<br \/>\n    &#064;RequestMapping(&#034;\/delete2\/{id}&#034;)<br \/>\n    public String deleteCustomerById(&#064;PathVariable(&#034;id&#034;) String id){<\/p>\n<p>        QueryWrapper&lt;Customer&gt; wrapper &#061; new QueryWrapper&lt;&gt;();<br \/>\n        wrapper.eq(&#034;id&#034;,id);<br \/>\n        customerService2.remove(wrapper);<br \/>\n        return &#034;\u5220\u9664customer\u6210\u529f&#034;;<br \/>\n    }<\/p>\n<p>    &#064;RequestMapping(&#034;\/updateCustomer2&#034;)<br \/>\n    public void updateCustomer(&#064;RequestBody Customer customer){<br \/>\n        customerService2.updateById(customer);<br \/>\n        System.out.println(&#034;\u4fee\u6539customer\u6210\u529f&#034;);<br \/>\n    }<\/p>\n<p>    &#064;RequestMapping(&#034;\/selectCustomerById2&#034;)<br \/>\n    public Customer selectCustomer(String id){<br \/>\n        Customer customer &#061; customerService2.getById(id);<br \/>\n        return customer;<br \/>\n    }<\/p>\n<p>    &#064;RequestMapping(&#034;\/selectCustomers2&#034;)<br \/>\n    public List&lt;Customer&gt; selectCustomers(){<br \/>\n        List&lt;Customer&gt; customers &#061; customerService2.list();<br \/>\n        return customers;<br \/>\n    }<\/p>\n<p>}<\/p>\n<h5>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5728Bean\u4e0a\u52a0\u5165\u5bf9\u4e3b\u952e\u7684\u6807\u8bc6<\/h5>\n<p>package com.bigdata.springbootdemo.pojo;<\/p>\n<p>import com.baomidou.mybatisplus.annotation.IdType;<br \/>\nimport com.baomidou.mybatisplus.annotation.TableId;<br \/>\nimport lombok.AllArgsConstructor;<br \/>\nimport lombok.Data;<br \/>\nimport lombok.NoArgsConstructor;<\/p>\n<p>&#064;Data<br \/>\n&#064;NoArgsConstructor<br \/>\n&#064;AllArgsConstructor<br \/>\npublic class Customer {<br \/>\n    &#064;TableId(value &#061; &#034;id&#034;,type &#061; IdType.AUTO)  \/\/\u6807\u8bc6\u6839\u636e\u6570\u636e\u5e93\u81ea\u589e\u751f\u6210\u4e3b\u952e<br \/>\n    String id;<\/p>\n<p>    String name;<\/p>\n<p>    int age;<br \/>\n}<\/p>\n<\/p>\n<h3><\/h3>\n<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001SpringBoot\u4ecb\u7ecdJavaWeb&#xff1a; JavaWeb\u9879\u76ee\u662f\u7528\u6765\u63a5\u6536\u522b\u4eba\u53d1\u7ed9\u4f60\u7684\u8bf7\u6c42&#xff0c;javaweb\u4ee3\u7801\u5904\u7406\u8bf7\u6c42&#xff0c;\u5e76\u54cd\u5e94\u3002\u4e8c\u3001SpringBoot\u548cSSM\u7684\u5173\u7cfbSSM\u867d\u597d&#xff0c;\u4f46\u662f\u901a\u8fc7\u642d\u5efa\u4e00\u4e2aSSM\u9879\u76ee\u8fd8\u662f\u6bd4\u8f83\u7e41\u7410\u7684&#xff0c;\u9700\u8981\u5927\u91cf\u7684xml\u914d\u7f6e\u6587\u4ef6\u3002SSM&#xff1a;SpringMVC  Spring  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