{"id":29558,"date":"2025-04-20T10:46:05","date_gmt":"2025-04-20T02:46:05","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/29558.html"},"modified":"2025-04-20T10:46:05","modified_gmt":"2025-04-20T02:46:05","slug":"%e5%90%8c%e6%ba%90%e7%ad%96%e7%95%a5%ef%bc%8ccors%e8%b7%a8%e5%9f%9f%e8%b5%84%e6%ba%90%e5%85%b1%e4%ba%ab%ef%bc%8cjsonp%e6%96%b9%e6%b3%95%e8%a7%a3%e5%86%b3%e8%b7%a8%e5%9f%9f%ef%bc%8cexpress%e5%ae%9e","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/29558.html","title":{"rendered":"\u540c\u6e90\u7b56\u7565\uff0cCORS\u8de8\u57df\u8d44\u6e90\u5171\u4eab\uff0cJSONP\u65b9\u6cd5\u89e3\u51b3\u8de8\u57df\uff0cExpress\u5b9e\u73b0\u63a5\u53e3\uff0c\u5176\u4ed6\u670d\u52a1\u5668\u6280\u672f\u548c\u6846\u67b6\u4e2d\u914d\u7f6eCORS\u7684\u8bbe\u7f6e"},"content":{"rendered":"<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>1\u3001\u540c\u6e90\u7b56\u7565<\/li>\n<li>\n<ul>\n<li>1.\u540c\u6e90\u7b56\u7565<\/li>\n<li>2.\u540c\u6e90\u7684\u539f\u7406<\/li>\n<li>3.\u8de8\u57df\u62a5\u9519\u4fe1\u606f<\/li>\n<\/ul>\n<\/li>\n<li>2\u3001CORS\u8de8\u57df\u8d44\u6e90\u5171\u4eab<\/li>\n<li>\n<ul>\n<li>1. 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CORS \u54cd\u5e94\u5934\u90e8<\/h3>\n<li>Access-Control-Allow-Origin \u54cd\u5e94\u5934\u90e8\u4e2d\u53ef\u4ee5\u643a\u5e26\u4e00\u4e2a Access-Control-Allow-Origin \u5b57\u6bb5&#xff0c;\u8bbe\u7f6e\u5141\u8bb8\u65b9\u4f4d\u7684\u5916\u57dfURLres<span class=\"token punctuation\">.<\/span><span class=\"token function\">setHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Access-Control-Allow-Origin&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;http:\/\/baidu.com&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n \u82e5Access-Control-Allow-Origin\u5b57\u6bb5\u7684\u503c\u8bbe\u7f6e\u901a\u914d\u7b26*&#xff0c;\u8868\u793a\u5141\u8bb8\u6765\u81ea\u4efb\u4f55\u57df\u7684\u8bf7\u6c42res<span class=\"token punctuation\">.<\/span><span class=\"token function\">setHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Access-Control-Allow-Origin&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;*&#039;<\/span><span class=\"token punctuation\">)<\/span>\n <\/li>\n<li>Access-Control-Allow-Headers \u8bf7\u6c42\u5934\u8bbe\u7f6e \u9ed8\u8ba4\u60c5\u51b5\u4e0b&#xff0c;CORS \u4ec5\u652f\u6301\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u5668\u53d1\u9001\u5982\u4e0b\u7684 9 \u4e2a\u8bf7\u6c42\u5934\n<li>Accept\u3001Accept-Language\u3001Content-Language\u3001DPR\u3001Downlink\u3001Save-Data\u3001Viewport-Width\u3001Width \u3001Content-Type &#xff08;\u503c\u4ec5\u9650\u4e8e text\/plain\u3001multipart\/form-data\u3001application\/x-www-form-urlencoded \u4e09\u8005\u4e4b\u4e00&#xff09;<\/li>\n<li>\u5982\u679c\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u5668\u53d1\u9001\u4e86\u989d\u5916\u7684\u8bf7\u6c42\u5934\u4fe1\u606f&#xff0c;\u5219\u9700\u8981\u5728\u670d\u52a1\u5668\u7aef&#xff0c;\u901a\u8fc7 Access-Control-Allow-Headers \u5bf9\u989d\u5916\u7684\u8bf7\u6c42\u5934\u8fdb\u884c\u58f0\u660e&#xff0c;\u5426\u5219\u8fd9\u6b21\u8bf7\u6c42\u4f1a\u5931\u8d25&#xff01;<\/li>\n<li>\u591a\u4e2a\u8bf7\u6c42\u5934\u4e4b\u95f4\u4f7f\u7528\u82f1\u6587\u7684\u9017\u53f7\u8fdb\u884c\u5206\u5272<\/li>\n<li>\u8bbe\u7f6e\u901a\u914d\u7b26*&#xff0c;\u4efb\u4f55\u8bf7\u6c42\u5934\u8bbe\u7f6e\u90fd\u53ef\u4ee5\u8bbf\u95ee<\/li>\n<p>   res<span class=\"token punctuation\">.<\/span><span class=\"token function\">setHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Access-Control-Allow-Headers&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;Content-Type, Authorization&#039;<\/span><span class=\"token punctuation\">)<\/span>\n <\/li>\n<li>Access-Control-Allow-Methods \u8bf7\u6c42\u65b9\u6cd5 \u9ed8\u8ba4\u60c5\u51b5\u4e0b&#xff0c;CORS \u4ec5\u652f\u6301\u5ba2\u6237\u7aef\u53d1\u8d77 GET\u3001POST\u3001HEAD \u8bf7\u6c42\u3002 \u5982\u679c\u5ba2\u6237\u7aef\u5e0c\u671b\u901a\u8fc7 PUT\u3001DELETE \u7b49\u65b9\u5f0f\u8bf7\u6c42\u670d\u52a1\u5668\u7684\u8d44\u6e90&#xff0c;\u5219\u9700\u8981\u5728\u670d\u52a1\u5668\u7aef&#xff0c;\u901a\u8fc7 Access-Control-Alow-Methods\u6765\u6307\u660e\u5b9e\u9645\u8bf7\u6c42\u6240\u5141\u8bb8\u4f7f\u7528\u7684 HTTP \u65b9\u6cd5\u3002<span class=\"token comment\">\/\/ \u53ea\u5141\u8bb8 GET\u3001POST\u3001HEAD\u3001DELETE\u8bf7\u6c42\u65b9\u6cd5<\/span><br \/>\nres<span class=\"token punctuation\">.<\/span><span class=\"token function\">setHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Access-Control-Allow-Methods&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;GET\u3001POST\u3001HEAD\u3001DELETE&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">\/\/ \u5141\u8bb8\u6240\u6709\u7684\u8bf7\u6c42\u65b9\u6cd5<\/span><br \/>\nres<span class=\"token punctuation\">.<\/span><span class=\"token function\">setHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Access-Control-Allow-Methods&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;*&#039;<\/span><span class=\"token punctuation\">)<\/span>\n <\/li>\n<h3>2. CORS \u8bf7\u6c42\u5206\u7c7b<\/h3>\n<p>\u5ba2\u6237\u7aef\u5728\u8bf7\u6c42 CORS \u63a5\u53e3\u65f6&#xff0c;\u6839\u636e\u8bf7\u6c42\u65b9\u5f0f\u548c\u8bf7\u6c42\u5934\u7684\u4e0d\u540c&#xff0c;\u53ef\u4ee5\u5c06 CORS \u7684\u8bf7\u6c42\u5206\u4e3a\u4e24\u5927\u7c7b&#xff0c;\u5206\u522b\u662f&#xff1a;<\/p>\n<li>\n<p>\u7b80\u5355\u8bf7\u6c42 \u540c\u65f6\u6ee1\u8db3\u4ee5\u4e0b\u4e24\u5927\u6761\u4ef6\u7684\u8bf7\u6c42&#xff0c;\u5c31\u5c5e\u4e8e\u7b80\u5355\u8bf7\u6c42&#xff1a;<\/p>\n<ul>\n<li>\u8bf7\u6c42\u65b9\u5f0f&#xff1a;GET\u3001POST\u3001HEAD \u4e09\u8005\u4e4b\u4e00<\/li>\n<li>HTTP \u5934\u90e8\u4fe1\u606f\u4e0d\u8d85\u8fc7\u4ee5\u4e0b\u51e0\u79cd\u5b57\u6bb5&#xff1a;\u65e0\u81ea\u5b9a\u4e49\u5934\u90e8\u5b57\u6bb5\u3001Accept\u3001Accept-Language\u3001Content-Language\u3001DPR\u3001Downlink\u3001Save-Data\u3001Viewport-Width\u3001Width \u3001Content-Type&#xff08;\u53ea\u6709\u4e09\u4e2a\u503capplication\/x-www-form-urlencoded\u3001multipart\/form-data\u3001text\/plain&#xff09;<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u9884\u68c0\u8bf7\u6c42 \u53ea\u8981\u7b26\u5408\u4ee5\u4e0b\u4efb\u4f55\u4e00\u4e2a\u6761\u4ef6\u7684\u8bf7\u6c42&#xff0c;\u90fd\u9700\u8981\u8fdb\u884c\u9884\u68c0\u8bf7\u6c42&#xff1a;<\/p>\n<ul>\n<li>\u8bf7\u6c42\u65b9\u5f0f\u4e3a GET\u3001POST\u3001HEAD \u4e4b\u5916\u7684\u8bf7\u6c42 Method \u7c7b\u578b<\/li>\n<li>\u8bf7\u6c42\u5934\u4e2d\u5305\u542b\u81ea\u5b9a\u4e49\u5934\u90e8\u5b57\u6bb5<\/li>\n<li>\u5411\u670d\u52a1\u5668\u53d1\u9001\u4e86 application\/json \u683c\u5f0f\u7684\u6570\u636e \u5728\u6d4f\u89c8\u5668\u4e0e\u670d\u52a1\u5668\u6b63\u5f0f\u901a\u4fe1\u4e4b\u524d&#xff0c;\u6d4f\u89c8\u5668\u4f1a\u5148\u53d1\u9001 OPTION \u8bf7\u6c42\u8fdb\u884c\u9884\u68c0&#xff0c;\u4ee5\u83b7\u77e5\u670d\u52a1\u5668\u662f\u5426\u5141\u8bb8\u8be5\u5b9e\u9645\u8bf7\u6c42&#xff0c;\u8fd9\u4e00\u6b21\u7684 OPTION \u8bf7\u6c42\u79f0\u4e3a\u201c\u9884\u68c0\u8bf7\u6c42\u201d\u3002\u670d\u52a1\u5668\u6210\u529f\u54cd\u5e94\u9884\u68c0\u8bf7\u6c42\u540e&#xff0c;\u624d\u4f1a\u53d1\u9001\u771f\u6b63\u7684\u8bf7\u6c42&#xff0c;\u5e76\u4e14\u643a\u5e26\u771f\u5b9e\u6570\u636e<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u7b80\u5355\u8bf7\u6c42\u548c\u9884\u68c0\u8bf7\u6c42\u7684\u533a\u522b \u7b80\u5355\u8bf7\u6c42\u7684\u7279\u70b9&#xff1a;\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u53ea\u4f1a\u53d1\u751f\u4e00\u6b21\u8bf7\u6c42\u3002 \u9884\u68c0\u8bf7\u6c42\u7684\u7279\u70b9&#xff1a;\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u4f1a\u53d1\u751f\u4e24\u6b21\u8bf7\u6c42&#xff0c;OPTION \u9884\u68c0\u8bf7\u6c42\u6210\u529f\u4e4b\u540e&#xff0c;\u624d\u4f1a\u53d1\u8d77\u771f\u6b63\u7684\u8bf7\u6c42<\/p>\n<\/li>\n<h3>3. \u8bbe\u7f6e\u4e2d\u95f4\u4ef6\u5b9e\u73b0CORS<\/h3>\n<p><span class=\"token comment\">\/\/ 1\u3001\u5f15\u5165express<\/span><br \/>\n<span class=\"token keyword\">const<\/span> express <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;express&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ 2\u3001\u521b\u5efa\u5e94\u7528\u5bf9\u8c61<\/span><br \/>\n<span class=\"token keyword\">const<\/span> app <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">express<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ 3. \u4f7f\u7528\u4e2d\u95f4\u4ef6\u8bbe\u7f6e<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">use<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">req<span class=\"token punctuation\">,<\/span> res<span class=\"token punctuation\">,<\/span> next<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Time:&#039;<\/span><span class=\"token punctuation\">,<\/span> Date<span class=\"token punctuation\">.<\/span><span class=\"token function\">now<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  res<span class=\"token punctuation\">.<\/span><span class=\"token function\">setHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Access-Control-Allow-Origin&#039;<\/span><span class=\"token punctuation\">,<\/span><span class=\"token string\">&#039;*&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  res<span class=\"token punctuation\">.<\/span><span class=\"token function\">setHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Access-Control-Allow-Headers&#039;<\/span><span class=\"token punctuation\">,<\/span><span class=\"token string\">&#039;*&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  res<span class=\"token punctuation\">.<\/span><span class=\"token function\">setHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Access-Control-Allow-Methods&#039;<\/span><span class=\"token punctuation\">,<\/span><span class=\"token string\">&#039;*&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token function\">next<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\">\/\/ 4\u3001\u76d1\u542c\u7aef\u53e3\u542f\u52a8\u670d\u52a1<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">8081<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u670d\u52a1\u542f\u52a8&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250420024604-68045fec04db6.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>4. \u4f7f\u7528cors\u5b9e\u73b0\u8de8\u57df<\/h3>\n<p>cors \u662f Express \u7684\u4e00\u4e2a\u7b2c\u4e09\u65b9\u4e2d\u95f4\u4ef6\u3002\u901a\u8fc7\u5b89\u88c5\u548c\u914d\u7f6e cors \u4e2d\u95f4\u4ef6&#xff0c;\u53ef\u4ee5\u5f88\u65b9\u4fbf\u5730\u89e3\u51b3\u8de8\u57df\u95ee\u9898\u3002<\/p>\n<p>\u4f7f\u7528\u6b65\u9aa4\u5206\u4e3a\u5982\u4e0b 3 \u6b65&#xff1a; \u2460 \u8fd0\u884c npm install cors \u5b89\u88c5\u4e2d\u95f4\u4ef6 \u2461 \u4f7f\u7528 const cors &#061; require(\u2018cors\u2019) \u5bfc\u5165\u4e2d\u95f4\u4ef6 \u2462 \u5728\u8def\u7531\u4e4b\u524d\u8c03\u7528 app.use(cors()) \u914d\u7f6e\u4e2d\u95f4\u4ef6<\/p>\n<p><span class=\"token comment\">\/\/ 1\u3001\u5f15\u5165express<\/span><br \/>\n<span class=\"token keyword\">const<\/span> express <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;express&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ 2\u3001\u521b\u5efa\u5e94\u7528\u5bf9\u8c61<\/span><br \/>\n<span class=\"token keyword\">const<\/span> app <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">express<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u4e00\u5b9a\u8981\u5728\u8def\u7531\u4e4b\u524d&#xff0c;\u914d\u7f6e cors \u8fd9\u4e2a\u4e2d\u95f4\u4ef6&#xff0c;\u4ece\u800c\u89e3\u51b3\u63a5\u53e3\u8de8\u57df\u7684\u95ee\u9898<\/span><br \/>\n<span class=\"token comment\">\/\/ 3. \u5bfc\u5165\u4e2d\u95f4\u4ef6<\/span><br \/>\n<span class=\"token keyword\">const<\/span> cors <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;cors&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">\/\/ 4. \u914d\u7f6e\u4e2d\u95f4\u4ef6<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">use<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">cors<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">\/\/ 5\u3001\u76d1\u542c\u7aef\u53e3\u542f\u52a8\u670d\u52a1<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">8081<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u670d\u52a1\u542f\u52a8&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250420024604-68045fec27b78.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>3\u3001JSONP\u65b9\u6cd5\u89e3\u51b3\u8de8\u57df<\/h2>\n<p>Jsonp(JSON with Padding) \u662f json \u7684\u4e00\u79cd&#034;\u4f7f\u7528\u6a21\u5f0f&#034;&#xff0c;\u53ef\u4ee5\u8ba9\u7f51\u9875\u4ece\u522b\u7684\u57df\u540d&#xff08;\u7f51\u7ad9&#xff09;\u90a3\u83b7\u53d6\u8d44\u6599&#xff0c;\u5373\u8de8\u57df\u8bfb\u53d6\u6570\u636e\u3002 ajax \u8bf7\u6c42\u53d7\u540c\u6e90\u7b56\u7565\u5f71\u54cd&#xff0c;\u4e0d\u5141\u8bb8\u8fdb\u884c\u8de8\u57df\u8bf7\u6c42&#xff0c;\u800c script \u6807\u7b7e src \u5c5e\u6027\u4e2d\u7684\u94fe \u63a5\u5374\u53ef\u4ee5\u8bbf\u95ee\u8de8\u57df\u7684 js \u811a\u672c&#xff0c;\u5229\u7528\u8fd9\u4e2a\u7279\u6027&#xff0c;\u670d\u52a1\u7aef\u4e0d\u518d\u8fd4\u56de JSON \u683c\u5f0f\u7684\u6570\u636e&#xff0c;\u800c\u662f \u8fd4\u56de\u4e00\u6bb5\u8c03\u7528\u67d0\u4e2a\u51fd\u6570\u7684 js \u4ee3\u7801&#xff0c;\u5728 src \u4e2d\u8fdb\u884c\u4e86\u8c03\u7528&#xff0c;\u8fd9\u6837\u5b9e\u73b0\u4e86\u8de8\u57df\u3002<\/p>\n<p>JSON\u53ea\u2f40\u6301get&#xff0c;\u56e0\u4e3ascript\u6807\u7b7e\u53ea\u80fd\u4f7f\u2f64get\u8bf7\u6c42&#xff1b;JSONP\u9700\u8981\u540e\u7aef\u914d\u5408\u8fd4\u56de\u6307\u5b9a\u683c\u5f0f\u7684 \u6570\u636e<\/p>\n<h3>1.\u5ba2\u6237\u7aef\u8bbe\u7f6e\u6b65\u9aa4<\/h3>\n<li>\u53bb\u521b\u5efa\u4e00\u4e2ascript\u6807\u7b7e<\/li>\n<li>script\u7684src\u5c5e\u6027\u8bbe\u7f6e\u63a5\u53e3\u5730\u5740<\/li>\n<li>\u63a5\u53e3\u53c2\u6570&#xff0c;\u5fc5\u987b\u8981\u5e26\u4e00\u4e2a\u81ea\u5b9a\u4e49\u51fd\u6570\u540d&#xff0c;\u8981\u4e0d\u7136\u540e\u53f0\u65e0\u6cd5\u8fd4\u56de\u6570\u636e<\/li>\n<li>\u901a\u8fc7\u5b9a\u4e49\u51fd\u6570\u540d\u53bb\u63a5\u53d7\u8fd4\u56de\u7684\u6570\u636e<\/li>\n<p><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">!<\/span><span class=\"token constant\">DOCTYPE<\/span> html<span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token operator\">&lt;<\/span>html lang<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;en&#034;<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n  <span class=\"token operator\">&lt;<\/span>head<span class=\"token operator\">&gt;<\/span><br \/>\n    <span class=\"token operator\">&lt;<\/span>meta charset<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;UTF-8&#034;<\/span> <span class=\"token operator\">\/<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n    <span class=\"token operator\">&lt;<\/span>meta name<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;viewport&#034;<\/span> content<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;width&#061;device-width, initial-scale&#061;1.0&#034;<\/span> <span class=\"token operator\">\/<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n    <span class=\"token operator\">&lt;<\/span>title<span class=\"token operator\">&gt;<\/span>Document<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>title<span class=\"token operator\">&gt;<\/span><br \/>\n    <span class=\"token operator\">&lt;<\/span>script src<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;https:\/\/cdn.staticfile.org\/jquery\/3.4.1\/jquery.min.js&#034;<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>script<span class=\"token operator\">&gt;<\/span><br \/>\n  <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>head<span class=\"token operator\">&gt;<\/span><br \/>\n  <span class=\"token operator\">&lt;<\/span>body<span class=\"token operator\">&gt;<\/span><br \/>\n    <span class=\"token operator\">&lt;<\/span>button id<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;btnJSONP&#034;<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token constant\">JSONP<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>button<span class=\"token operator\">&gt;<\/span><br \/>\n    <span class=\"token operator\">&lt;<\/span>script<span class=\"token operator\">&gt;<\/span><br \/>\n      <span class=\"token function\">$<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/ \u4e3a JSONP \u6309\u94ae\u7ed1\u5b9a\u70b9\u51fb\u4e8b\u4ef6\u5904\u7406\u51fd\u6570<\/span><br \/>\n<span class=\"token comment\">\/\/  $(&#039;#btnJSONP&#039;).on(&#039;click&#039;, function () {<\/span><br \/>\n<span class=\"token comment\">\/\/    $.ajax({<\/span><br \/>\n<span class=\"token comment\">\/\/    type: &#039;GET&#039;,<\/span><br \/>\n<span class=\"token comment\">\/\/    url: &#039;http:\/\/127.0.0.1\/api\/jsonp&#039;,<\/span><br \/>\n<span class=\"token comment\">\/\/      dataType: &#039;jsonp&#039;,<\/span><br \/>\n<span class=\"token comment\">\/\/      success: function (res) {<\/span><br \/>\n<span class=\"token comment\">\/\/        console.log(res)<\/span><br \/>\n<span class=\"token comment\">\/\/      },<\/span><br \/>\n<span class=\"token comment\">\/\/     })<\/span><br \/>\n<span class=\"token comment\">\/\/  })<\/span><br \/>\n        <span class=\"token function\">$<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;#btnJSONP&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">on<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;click&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n          <span class=\"token keyword\">var<\/span> script <span class=\"token operator\">&#061;<\/span> document<span class=\"token punctuation\">.<\/span><span class=\"token function\">createElement<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;script&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n          <span class=\"token comment\">\/\/\u8bbe\u7f6e script \u7684 src \u5c5e\u6027&#xff0c;\u5e76\u8bbe\u7f6e\u8bf7\u6c42\u5730\u5740<\/span><br \/>\n          script<span class=\"token punctuation\">.<\/span>src <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;http:\/\/127.0.0.1:8081\/api\/jsonp?callback&#061;callbackFunction&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n          <span class=\"token comment\">\/\/ \u8ba9 script \u751f\u6548<\/span><br \/>\n          document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span><span class=\"token function\">appendChild<\/span><span class=\"token punctuation\">(<\/span>script<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n          <span class=\"token comment\">\/\/ \u8bbe\u7f6e\u56de\u8c03\u51fd\u6570<\/span><\/p>\n<p>        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n      <span class=\"token comment\">\/\/ \u56de\u8c03\u542b\u7cca<\/span><br \/>\n      <span class=\"token keyword\">function<\/span> <span class=\"token function\">callbackFunction<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">data<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>script<span class=\"token operator\">&gt;<\/span><br \/>\n  <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>body<span class=\"token operator\">&gt;<\/span><br \/>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>html<span class=\"token operator\">&gt;<\/span><\/p>\n<h3>2.\u670d\u52a1\u7aef\u5b9e\u73b0\u6b65\u9aa4<\/h3>\n<li>\u83b7\u53d6\u5ba2\u6237\u7aef\u53d1\u9001\u8fc7\u6765\u7684\u56de\u8c03\u51fd\u6570\u7684\u540d\u5b57<\/li>\n<li>\u5f97\u5230\u8981\u901a\u8fc7 JSONP \u5f62\u5f0f\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\u7684\u6570\u636e<\/li>\n<li>\u6839\u636e\u524d\u4e24\u6b65\u5f97\u5230\u7684\u6570\u636e&#xff0c;\u62fc\u63a5\u51fa\u4e00\u4e2a\u51fd\u6570\u8c03\u7528\u7684\u5b57\u7b26\u4e32<\/li>\n<li>\u628a\u4e0a\u4e00\u6b65\u62fc\u63a5\u5f97\u5230\u7684\u5b57\u7b26\u4e32&#xff0c;\u54cd\u5e94\u7ed9\u5ba2\u6237\u7aef\u7684<\/li>\n<p><span class=\"token keyword\">var<\/span> express <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;express&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">var<\/span> app <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">express<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u914d\u7f6e\u89e3\u6790\u8868\u5355\u6570\u636e\u7684\u4e2d\u95f4\u4ef6<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">use<\/span><span class=\"token punctuation\">(<\/span>express<span class=\"token punctuation\">.<\/span><span class=\"token function\">urlencoded<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span> extended<span class=\"token operator\">:<\/span> <span class=\"token boolean\">false<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5fc5\u987b\u5728\u914d\u7f6e cors \u4e2d\u95f4\u4ef6\u4e4b\u524d&#xff0c;\u914d\u7f6e JSONP \u7684\u63a5\u53e3<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/api\/jsonp&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">req<span class=\"token punctuation\">,<\/span> res<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token comment\">\/\/ \u5b9a\u4e49 JSONP \u63a5\u53e3\u5177\u4f53\u7684\u5b9e\u73b0\u8fc7\u7a0b<\/span><br \/>\n  <span class=\"token keyword\">const<\/span> funcName <span class=\"token operator\">&#061;<\/span> req<span class=\"token punctuation\">.<\/span>query<span class=\"token punctuation\">.<\/span>callback    <span class=\"token comment\">\/\/ 1. \u5f97\u5230\u51fd\u6570\u7684\u540d\u79f0<\/span><br \/>\n  <span class=\"token keyword\">const<\/span> data <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span> name<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;zs&#039;<\/span><span class=\"token punctuation\">,<\/span> age<span class=\"token operator\">:<\/span> <span class=\"token number\">22<\/span> <span class=\"token punctuation\">}<\/span>    <span class=\"token comment\">\/\/ 2. \u5b9a\u4e49\u8981\u53d1\u9001\u5230\u5ba2\u6237\u7aef\u7684\u6570\u636e\u5bf9\u8c61<\/span><br \/>\n  <span class=\"token keyword\">const<\/span> scriptStr <span class=\"token operator\">&#061;<\/span> <span class=\"token template-string\"><span class=\"token template-punctuation string\">&#096;<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span>funcName<span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token string\">(<\/span><span class=\"token interpolation\"><span class=\"token interpolation-punctuation punctuation\">${<\/span><span class=\"token constant\">JSON<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">stringify<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">)<\/span><span class=\"token interpolation-punctuation punctuation\">}<\/span><\/span><span class=\"token string\">)<\/span><span class=\"token template-punctuation string\">&#096;<\/span><\/span>    <span class=\"token comment\">\/\/ 3. \u62fc\u63a5\u51fa\u4e00\u4e2a\u51fd\u6570\u7684\u8c03\u7528<\/span><br \/>\n  res<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span>scriptStr<span class=\"token punctuation\">)<\/span>        <span class=\"token comment\">\/\/ 4. \u628a\u62fc\u63a5\u7684\u5b57\u7b26\u4e32&#xff0c;\u54cd\u5e94\u7ed9\u5ba2\u6237\u7aef<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">\/\/ \u5bfc\u5165\u8def\u7531\u6a21\u5757<\/span><br \/>\n<span class=\"token keyword\">const<\/span> router <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;.\/apiRouter&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">\/\/ \u628a\u8def\u7531\u6a21\u5757&#xff0c;\u6ce8\u518c\u5230 app \u4e0a<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">use<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/api&#039;<\/span><span class=\"token punctuation\">,<\/span> router<span class=\"token punctuation\">)<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">8081<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u670d\u52a1\u542f\u52a8&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250420024604-68045fec4ae6f.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>4\u3001Express\u5b9e\u73b0\u63a5\u53e3<\/h2>\n<li>\u521b\u5efa\u57fa\u672c\u7684\u670d\u52a1\u5668<\/li>\n<p><span class=\"token comment\">\/\/ server.js<\/span><br \/>\n<span class=\"token keyword\">var<\/span> express <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;express&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">var<\/span> app <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">express<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u914d\u7f6e\u89e3\u6790\u8868\u5355\u6570\u636e\u7684\u4e2d\u95f4\u4ef6<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">use<\/span><span class=\"token punctuation\">(<\/span>express<span class=\"token punctuation\">.<\/span><span class=\"token function\">urlencoded<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span> extended<span class=\"token operator\">:<\/span> <span class=\"token boolean\">false<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u4e00\u5b9a\u8981\u5728\u8def\u7531\u4e4b\u524d&#xff0c;\u914d\u7f6e cors \u8fd9\u4e2a\u4e2d\u95f4\u4ef6&#xff0c;\u4ece\u800c\u89e3\u51b3\u63a5\u53e3\u8de8\u57df\u7684\u95ee\u9898<\/span><br \/>\n<span class=\"token keyword\">const<\/span> cors <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;cors&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">use<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">cors<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>app<span class=\"token punctuation\">.<\/span><span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">8081<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u670d\u52a1\u542f\u52a8&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<li>\u521b\u5efaapi\u8def\u7531\u6a21\u5757<\/li>\n<p><span class=\"token comment\">\/\/ \u5bfc\u5165\u8def\u7531\u6a21\u5757<\/span><br \/>\n<span class=\"token keyword\">const<\/span> router <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;.\/apiRouter&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">\/\/ \u628a\u8def\u7531\u6a21\u5757&#xff0c;\u6ce8\u518c\u5230 app \u4e0a&#xff0c;\u5e76\u4e14\u62fc\u63a5\/api<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">use<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/api&#039;<\/span><span class=\"token punctuation\">,<\/span> router<span class=\"token punctuation\">)<\/span><\/p>\n<li>\u7f16\u5199\u63a5\u53e3<\/li>\n<p><span class=\"token comment\">\/\/ apiRouter.js<\/span><br \/>\n<span class=\"token keyword\">const<\/span> express <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;express&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">const<\/span> router <span class=\"token operator\">&#061;<\/span> express<span class=\"token punctuation\">.<\/span><span class=\"token function\">Router<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5728\u8fd9\u91cc\u6302\u8f7d\u5bf9\u5e94\u7684\u8def\u7531<\/span><br \/>\nrouter<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/get&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">req<span class=\"token punctuation\">,<\/span> res<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token comment\">\/\/ \u901a\u8fc7 req.query \u83b7\u53d6\u5ba2\u6237\u7aef\u901a\u8fc7\u67e5\u8be2\u5b57\u7b26\u4e32&#xff0c;\u53d1\u9001\u5230\u670d\u52a1\u5668\u7684\u6570\u636e<\/span><br \/>\n  <span class=\"token keyword\">const<\/span> query <span class=\"token operator\">&#061;<\/span> req<span class=\"token punctuation\">.<\/span>query<br \/>\n  <span class=\"token comment\">\/\/ \u8c03\u7528 res.send() \u65b9\u6cd5&#xff0c;\u5411\u5ba2\u6237\u7aef\u54cd\u5e94\u5904\u7406\u7684\u7ed3\u679c<\/span><br \/>\n  res<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n    status<span class=\"token operator\">:<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token comment\">\/\/ 0 \u8868\u793a\u5904\u7406\u6210\u529f&#xff0c;1 \u8868\u793a\u5904\u7406\u5931\u8d25<\/span><br \/>\n    msg<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;GET \u8bf7\u6c42\u6210\u529f&#xff01;&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token comment\">\/\/ \u72b6\u6001\u7684\u63cf\u8ff0<\/span><br \/>\n    data<span class=\"token operator\">:<\/span> query<span class=\"token punctuation\">,<\/span> <span class=\"token comment\">\/\/ \u9700\u8981\u54cd\u5e94\u7ed9\u5ba2\u6237\u7aef\u7684\u6570\u636e<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">\/\/ \u5b9a\u4e49 POST \u63a5\u53e3<\/span><br \/>\nrouter<span class=\"token punctuation\">.<\/span><span class=\"token function\">post<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/post&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">req<span class=\"token punctuation\">,<\/span> res<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token comment\">\/\/ \u901a\u8fc7 req.body \u83b7\u53d6\u8bf7\u6c42\u4f53\u4e2d\u5305\u542b\u7684 url-encoded \u683c\u5f0f\u7684\u6570\u636e<\/span><br \/>\n  <span class=\"token keyword\">const<\/span> body <span class=\"token operator\">&#061;<\/span> req<span class=\"token punctuation\">.<\/span>body<br \/>\n  <span class=\"token comment\">\/\/ \u8c03\u7528 res.send() \u65b9\u6cd5&#xff0c;\u5411\u5ba2\u6237\u7aef\u54cd\u5e94\u7ed3\u679c<\/span><br \/>\n  res<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n    status<span class=\"token operator\">:<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    msg<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;POST \u8bf7\u6c42\u6210\u529f&#xff01;&#039;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    data<span class=\"token operator\">:<\/span> body<span class=\"token punctuation\">,<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5b9a\u4e49 DELETE \u63a5\u53e3<\/span><br \/>\nrouter<span class=\"token punctuation\">.<\/span><span class=\"token function\">delete<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/delete&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">req<span class=\"token punctuation\">,<\/span> res<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  res<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n    status<span class=\"token operator\">:<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    msg<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;DELETE\u8bf7\u6c42\u6210\u529f&#039;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\nmodule<span class=\"token punctuation\">.<\/span>exports <span class=\"token operator\">&#061;<\/span> router<\/p>\n<li>html\u6587\u4ef6<\/li>\n<p><span class=\"token doctype\"><span class=\"token punctuation\">&lt;!<\/span><span class=\"token doctype-tag\">DOCTYPE<\/span> <span class=\"token name\">html<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>html<\/span> <span class=\"token attr-name\">lang<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>en<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>head<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>meta<\/span> <span class=\"token attr-name\">charset<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>UTF-8<span class=\"token punctuation\">&#034;<\/span><\/span> <span class=\"token punctuation\">\/&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>meta<\/span> <span class=\"token attr-name\">name<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>viewport<span class=\"token punctuation\">&#034;<\/span><\/span> <span class=\"token attr-name\">content<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>width&#061;device-width, initial-scale&#061;1.0<span class=\"token punctuation\">&#034;<\/span><\/span> <span class=\"token punctuation\">\/&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>title<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>Document<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>title<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>script<\/span> <span class=\"token attr-name\">src<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>https:\/\/cdn.staticfile.org\/jquery\/3.4.1\/jquery.min.js<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token script\"><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>script<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>head<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>body<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>button<\/span> <span class=\"token attr-name\">id<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>btnGET<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span>GET<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>button<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>button<\/span> <span class=\"token attr-name\">id<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>btnPOST<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span>POST<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>button<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>button<\/span> <span class=\"token attr-name\">id<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>btnDelete<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span>DELETE<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>button<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>script<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token script\"><span class=\"token language-javascript\"><br \/>\n      <span class=\"token function\">$<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ 1. \u6d4b\u8bd5GET\u63a5\u53e3<\/span><br \/>\n        <span class=\"token function\">$<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;#btnGET&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">on<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;click&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n          $<span class=\"token punctuation\">.<\/span><span class=\"token function\">ajax<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            type<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;GET&#039;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            url<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;http:\/\/127.0.0.1:8081\/api\/get&#039;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            data<span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span> name<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;cess&#039;<\/span><span class=\"token punctuation\">,<\/span> age<span class=\"token operator\">:<\/span> <span class=\"token number\">18<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token function-variable function\">success<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">res<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n              console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span>res<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n          <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token comment\">\/\/ 2. \u6d4b\u8bd5POST\u63a5\u53e3<\/span><br \/>\n        <span class=\"token function\">$<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;#btnPOST&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">on<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;click&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n          $<span class=\"token punctuation\">.<\/span><span class=\"token function\">ajax<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            type<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;POST&#039;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            url<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;http:\/\/127.0.0.1:8081\/api\/post&#039;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            data<span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span> bookname<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;\u5f00\u7aef&#039;<\/span><span class=\"token punctuation\">,<\/span> author<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;\u7948\u7977\u541b&#039;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token function-variable function\">success<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">res<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n              console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span>res<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n          <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token comment\">\/\/ 3. \u4e3a\u5220\u9664\u6309\u94ae\u7ed1\u5b9a\u70b9\u51fb\u4e8b\u4ef6\u5904\u7406\u51fd\u6570<\/span><br \/>\n        <span class=\"token function\">$<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;#btnDelete&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">on<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;click&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n          $<span class=\"token punctuation\">.<\/span><span class=\"token function\">ajax<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n            type<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;DELETE&#039;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            url<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;http:\/\/127.0.0.1:8081\/api\/delete&#039;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token function-variable function\">success<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">res<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n              console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span>res<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n          <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>script<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>body<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>html<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250420024604-68045fec6c9f2.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>5\u3001\u8de8\u57df\u7684\u5176\u4ed6\u8bbe\u7f6e<\/h2>\n<li>Apache\u200c\u670d\u52a1\u5668 .htaccess\u6587\u4ef6\u6216\u670d\u52a1\u5668\u914d\u7f6e\u6587\u4ef6\u6765\u6dfb\u52a0CORS\u54cd\u5e94\u5934<span class=\"token operator\">&lt;<\/span>IfModule mod_headers<span class=\"token punctuation\">.<\/span>c<span class=\"token operator\">&gt;<\/span><br \/>\n    Header <span class=\"token keyword\">set<\/span> Access<span class=\"token operator\">&#8211;<\/span>Control<span class=\"token operator\">&#8211;<\/span>Allow<span class=\"token operator\">&#8211;<\/span>Origin <span class=\"token string\">&#034;*&#034;<\/span><br \/>\n    Header <span class=\"token keyword\">set<\/span> Access<span class=\"token operator\">&#8211;<\/span>Control<span class=\"token operator\">&#8211;<\/span>Allow<span class=\"token operator\">&#8211;<\/span>Methods <span class=\"token string\">&#034;GET, POST, OPTIONS, HEAD&#034;<\/span><br \/>\n    Header <span class=\"token keyword\">set<\/span> Access<span class=\"token operator\">&#8211;<\/span>Control<span class=\"token operator\">&#8211;<\/span>Allow<span class=\"token operator\">&#8211;<\/span>Headers <span class=\"token string\">&#034;Content-Type, Authorization&#034;<\/span><br \/>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>IfModule<span class=\"token operator\">&gt;<\/span>\n <\/li>\n<li>Nginx\u200c\u670d\u52a1\u5668 \u5728\u670d\u52a1\u5668\u5757\u6216\u4f4d\u7f6e\u5757\u4e2d\u6dfb\u52a0add_header\u6307\u4ee4\u6765\u8bbe\u7f6eCORS\u54cd\u5e94\u5934server <span class=\"token punctuation\">{<\/span><br \/>\n    # <span class=\"token operator\">&#8230;<\/span> \u5176\u4ed6\u914d\u7f6e <span class=\"token operator\">&#8230;<\/span><br \/>\n    location <span class=\"token operator\">\/<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        add_header Access<span class=\"token operator\">&#8211;<\/span>Control<span class=\"token operator\">&#8211;<\/span>Allow<span class=\"token operator\">&#8211;<\/span>Origin <span class=\"token operator\">*<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        add_header Access<span class=\"token operator\">&#8211;<\/span>Control<span class=\"token operator\">&#8211;<\/span>Allow<span class=\"token operator\">&#8211;<\/span>Methods <span class=\"token string\">&#034;GET, POST, OPTIONS, HEAD&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        add_header Access<span class=\"token operator\">&#8211;<\/span>Control<span class=\"token operator\">&#8211;<\/span>Allow<span class=\"token operator\">&#8211;<\/span>Headers <span class=\"token string\">&#034;Content-Type, Authorization&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        # <span class=\"token operator\">&#8230;<\/span> \u5176\u4ed6\u914d\u7f6e <span class=\"token operator\">&#8230;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<li>ASP.NET Core Startup.cs\u6587\u4ef6\u4e2d\u6dfb\u52a0CORS\u670d\u52a1&#xff1a;<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">ConfigureServices<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">IServiceCollection services<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ &#8230; \u5176\u4ed6\u670d\u52a1\u914d\u7f6e &#8230;<\/span><\/p>\n<p>    services<span class=\"token punctuation\">.<\/span><span class=\"token function\">AddCors<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">options<\/span> <span class=\"token operator\">&#061;&gt;<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        options<span class=\"token punctuation\">.<\/span><span class=\"token function\">AddPolicy<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;AllowSpecificOrigin&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token parameter\">builder<\/span> <span class=\"token operator\">&#061;&gt;<\/span> builder<br \/>\n                <span class=\"token punctuation\">.<\/span><span class=\"token function\">WithOrigins<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;https:\/\/example.com&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">.<\/span><span class=\"token function\">AllowAnyMethod<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">.<\/span><span class=\"token function\">AllowAnyHeader<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n                <span class=\"token punctuation\">.<\/span><span class=\"token function\">AllowCredentials<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ &#8230; \u5176\u4ed6\u670d\u52a1\u914d\u7f6e &#8230;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">Configure<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">IApplicationBuilder app<span class=\"token punctuation\">,<\/span> IHostingEnvironment env<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ &#8230; \u5176\u4ed6\u4e2d\u95f4\u4ef6\u914d\u7f6e &#8230;<\/span><\/p>\n<p>    app<span class=\"token punctuation\">.<\/span><span class=\"token function\">UseCors<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;AllowSpecificOrigin&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ &#8230; \u5176\u4ed6\u4e2d\u95f4\u4ef6\u914d\u7f6e\u548c\u8def\u7531 &#8230;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<li>vue2.0\u8bbe\u7f6e\u4ee3\u7406\u5904\u7406\u8de8\u57df \u4fee\u6539vue.config.js\u6587\u4ef6\u4ee5\u6dfb\u52a0\u4ee3\u7406\u914d\u7f6e\u200c&#xff1a; \u4fee\u6539\u5b8cvue.config.js\u6587\u4ef6\u540e&#xff0c;\u4f60\u9700\u8981\u91cd\u542f\u4f60\u7684Vue\u5f00\u53d1\u670d\u52a1\u5668&#xff08;\u901a\u5e38\u662f\u8fd0\u884cnpm run serve\u6216yarn serve&#xff09;\u6765\u4f7f\u4ee3\u7406\u914d\u7f6e\u751f\u6548\u3002module<span class=\"token punctuation\">.<\/span>exports <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  devServer<span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    proxy<span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token comment\">\/\/ &#039;\/api&#039; \u662f\u4f60\u8981\u4ee3\u7406\u7684\u76ee\u6807\u8def\u5f84\u524d\u7f00<\/span><br \/>\n      <span class=\"token comment\">\/\/ \u5982\u679c\u4f60\u6709\u4e00\u4e2aAPI\u8bf7\u6c42\u662f https:\/\/example.com\/api\/some-endpoint<\/span><br \/>\n      <span class=\"token comment\">\/\/ \u90a3\u4e48\u4f60\u5e94\u8be5\u5c06 &#039;\/api&#039; \u4f5c\u4e3a\u524d\u7f00&#xff0c;\u5e76\u5c06\u76ee\u6807\u8bbe\u7f6e\u4e3a &#039;https:\/\/example.com&#039;<\/span><br \/>\n      <span class=\"token string\">&#039;\/api&#039;<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        target<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;https:\/\/example.com&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token comment\">\/\/ \u4f60\u7684API\u670d\u52a1\u5668\u7684\u5730\u5740<\/span><br \/>\n        changeOrigin<span class=\"token operator\">:<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token comment\">\/\/ \u662f\u5426\u6539\u53d8\u6e90\u5730\u5740<\/span><br \/>\n        pathRewrite<span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token string\">&#039;\/api&#039;<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;&#039;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token comment\">\/\/ \u8def\u5f84\u91cd\u5199&#xff0c;\u901a\u5e38\u7528\u4e8e\u53bb\u6389\u524d\u7f00<\/span><br \/>\n        secure<span class=\"token operator\">:<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token comment\">\/\/ \u5982\u679c\u662fhttps\u63a5\u53e3&#xff0c;\u9700\u8981\u8bbe\u7f6e\u8fd9\u4e2a\u4e3afalse\u6765\u5141\u8bb8http\u4ee3\u7406<\/span><br \/>\n        headers<span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n          <span class=\"token comment\">\/\/ \u53ef\u4ee5\u5728\u8fd9\u91cc\u6dfb\u52a0\u81ea\u5b9a\u4e49\u8bf7\u6c42\u5934<\/span><br \/>\n          <span class=\"token comment\">\/\/ &#039;Referer&#039;: &#039;https:\/\/your-app.com&#039;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><br \/>\n      <span class=\"token comment\">\/\/ \u4f60\u53ef\u4ee5\u6dfb\u52a0\u66f4\u591a\u7684\u4ee3\u7406\u914d\u7f6e&#xff0c;\u5982\u679c\u9700\u8981\u7684\u8bdd<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>vue3.0\u8bbe\u7f6e\u4ee3\u7406\u5904\u7406\u8de8\u57df \u4fee\u6539vue.config.js\u6587\u4ef6\u4ee5\u6dfb\u52a0\u4ee3\u7406\u914d\u7f6e\u200c&#xff1a; \u4fee\u6539\u5b8cvite.config.js\u6587\u4ef6\u540e&#xff0c;\u4f60\u9700\u8981\u91cd\u542f\u4f60\u7684Vite\u5f00\u53d1\u670d\u52a1\u5668&#xff08;\u901a\u5e38\u662f\u8fd0\u884cnpm run dev\u6216yarn dev&#xff09;\u6765\u4f7f\u4ee3\u7406\u914d\u7f6e\u751f\u6548\u3002<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> defineConfig <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">from<\/span> <span class=\"token string\">&#039;vite&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> vue <span class=\"token keyword\">from<\/span> <span class=\"token string\">&#039;&#064;vitejs\/plugin-vue&#039;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">export<\/span> <span class=\"token keyword\">default<\/span> <span class=\"token function\">defineConfig<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><br \/>\n  plugins<span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token function\">vue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><br \/>\n  server<span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    proxy<span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token comment\">\/\/ &#039;\/api&#039; \u662f\u4f60\u8981\u4ee3\u7406\u7684\u76ee\u6807\u8def\u5f84\u524d\u7f00<\/span><br \/>\n      <span class=\"token string\">&#039;\/api&#039;<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        target<span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;https:\/\/example.com&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token comment\">\/\/ \u4f60\u7684API\u670d\u52a1\u5668\u7684\u5730\u5740<\/span><br \/>\n        changeOrigin<span class=\"token operator\">:<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token comment\">\/\/ \u662f\u5426\u6539\u53d8\u6e90\u5730\u5740<\/span><br \/>\n        <span class=\"token function-variable function\">rewrite<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">path<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> path<span class=\"token punctuation\">.<\/span><span class=\"token function\">replace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token regex\"><span class=\"token regex-delimiter\">\/<\/span><span class=\"token regex-source language-regex\">\\\\\/api<\/span><span class=\"token regex-delimiter\">\/<\/span><\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ \u8def\u5f84\u91cd\u5199&#xff0c;\u53bb\u6389\u524d\u7f00<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4f60\u4e5f\u53ef\u4ee5\u5728\u8fd9\u91cc\u6dfb\u52a0\u5176\u4ed6\u4ee3\u7406\u9009\u9879&#xff0c;\u5982headers\u7b49<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><br \/>\n      <span class=\"token comment\">\/\/ \u4f60\u53ef\u4ee5\u6dfb\u52a0\u66f4\u591a\u7684\u4ee3\u7406\u914d\u7f6e&#xff0c;\u5982\u679c\u9700\u8981\u7684\u8bdd<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span>\n <\/li>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1k\u6b21\uff0c\u70b9\u8d5e19\u6b21\uff0c\u6536\u85cf22\u6b21\u3002\u540c\u6e90\u7b56\u7565\uff0cCORS\u8de8\u57df\u8d44\u6e90\u5171\u4eab\uff0cJSONP\u65b9\u6cd5\u89e3\u51b3\u8de8\u57df\uff0cExpress\u5b9e\u73b0\u63a5\u53e3\uff0c\u5176\u4ed6\u670d\u52a1\u5668\u6280\u672f\u548c\u6846\u67b6\u4e2d\u914d\u7f6eCORS\u7684\u8bbe\u7f6e_\u4fee\u6539dify\u540c\u6e90\u7b56\u7565(cors)<\/p>\n","protected":false},"author":2,"featured_media":29553,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[2391,709,1615,186,2390,87,2392],"topic":[],"class_list":["post-29558","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-cors","tag-express","tag-node","tag-node-js","tag-okhttp","tag-87","tag-2392"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - 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