{"id":7787,"date":"2023-11-28T19:57:32","date_gmt":"2023-11-28T11:57:32","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=7787"},"modified":"2023-12-05T15:54:52","modified_gmt":"2023-12-05T07:54:52","slug":"springboot-zhong-ru-he-jie-jue-kua-yu-wen-ti","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/springboot-zhong-ru-he-jie-jue-kua-yu-wen-ti\/","title":{"rendered":"SpringBoot\u4e2d\u5982\u4f55\u89e3\u51b3\u8de8\u57df\u95ee\u9898\uff1f"},"content":{"rendered":"

\u5728 Spring Boot \u4e2d\uff0c\u4f60\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6e\u548c\u4f7f\u7528\u4e00\u4e9b\u7279\u5b9a\u7684\u6ce8\u89e3\u6765\u89e3\u51b3\u8de8\u57df\uff08Cross-Origin\uff09\u95ee\u9898\u3002\u8de8\u57df\u95ee\u9898\u901a\u5e38\u5728\u6d4f\u89c8\u5668\u4e2d\u51fa\u73b0\uff0c\u662f\u7531\u4e8e\u6d4f\u89c8\u5668\u7684\u540c\u6e90\u7b56\u7565\uff08Same-Origin Policy\uff09\u5bfc\u81f4\u7684\uff0c\u5b83\u9650\u5236\u4e86\u4e0d\u540c\u6e90\uff08\u534f\u8bae\u3001\u57df\u540d\u3001\u7aef\u53e3\uff09\u4e4b\u95f4\u7684 JavaScript \u8bf7\u6c42\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u4e00\u4e9b\u89e3\u51b3\u8de8\u57df\u95ee\u9898\u7684\u65b9\u6cd5\uff1a<\/p>\n

<\/span><\/a>\u65b9\u6cd51\uff1a\u4f7f\u7528 @CrossOrigin<\/code> \u6ce8\u89e3<\/h3>\n

\u5728\u4f60\u7684 Controller \u7c7b\u6216\u65b9\u6cd5\u4e0a\u4f7f\u7528 @CrossOrigin<\/code> \u6ce8\u89e3\uff0c\u5b83\u53ef\u4ee5\u914d\u7f6e\u5141\u8bb8\u7684\u6765\u6e90\u3001\u5141\u8bb8\u7684\u8bf7\u6c42\u65b9\u6cd5\u7b49\u3002<\/p>\n

@RestController\n@RequestMapping("\/api")\npublic class MyController {\n\n    @CrossOrigin(origins = "http:\/\/localhost:3000") \/\/ \u5141\u8bb8 http:\/\/localhost:3000 \u53d1\u8d77\u8de8\u57df\u8bf7\u6c42\n    @GetMapping("\/example")\n    public ResponseEntity<String> getExample() {\n        \/\/ \u5904\u7406\u8bf7\u6c42\n        return ResponseEntity.ok("Hello, Cross-Origin!");\n    }\n}\n<\/code><\/pre>\n
<\/span><\/a>\u65b9\u6cd52\uff1a\u5168\u5c40\u914d\u7f6e\u8de8\u57df<\/h3>\n
\u5728\u5168\u5c40\u914d\u7f6e\u4e2d\u8bbe\u7f6e\u8de8\u57df\u914d\u7f6e\uff0c\u53ef\u4ee5\u901a\u8fc7\u521b\u5efa\u4e00\u4e2a WebMvcConfigurer<\/code> Bean \u6765\u5b9e\u73b0\u3002<\/p>\n
@Configuration\npublic class WebConfig implements WebMvcConfigurer {\n\n    @Override\n    public void addCorsMappings(CorsRegistry registry) {\n        registry.addMapping("\/api\/**") \/\/ \u914d\u7f6e\u8de8\u57df\u7684\u8def\u5f84\n                .allowedOrigins("http:\/\/localhost:3000") \/\/ \u5141\u8bb8\u7684\u6765\u6e90\n                .allowedMethods("GET", "POST", "PUT", "DELETE") \/\/ \u5141\u8bb8\u7684\u8bf7\u6c42\u65b9\u6cd5\n                .allowedHeaders("*") \/\/ \u5141\u8bb8\u7684\u8bf7\u6c42\u5934\n                .allowCredentials(true) \/\/ \u5141\u8bb8\u53d1\u9001 Cookie\n                .maxAge(3600); \/\/ \u9884\u68c0\u8bf7\u6c42\u7684\u7f13\u5b58\u65f6\u95f4\n    }\n}\n<\/code><\/pre>\n
<\/span><\/a>\u65b9\u6cd53\uff1a\u4f7f\u7528 Filter<\/h3>\n
\u521b\u5efa\u4e00\u4e2a Filter<\/code> \u6765\u5904\u7406\u8de8\u57df\u8bf7\u6c42\u3002<\/p>\n
@Component\npublic class CorsFilter implements Filter {\n\n    @Override\n    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)\n            throws IOException, ServletException {\n        HttpServletResponse httpResponse = (HttpServletResponse) response;\n        httpResponse.setHeader("Access-Control-Allow-Origin", "http:\/\/localhost:3000");\n        httpResponse.setHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE");\n        httpResponse.setHeader("Access-Control-Allow-Headers", "*");\n        httpResponse.setHeader("Access-Control-Allow-Credentials", "true");\n        httpResponse.setHeader("Access-Control-Max-Age", "3600");\n        chain.doFilter(request, response);\n    }\n}\n<\/code><\/pre>\n
\u4ee5\u4e0a\u8fd9\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u5f0f\uff0c\u89e3\u51b3 Spring Boot \u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u8de8\u57df\u95ee\u9898\u3002\u4e0d\u540c\u7684\u573a\u666f\u53ef\u80fd\u9700\u8981\u4e0d\u540c\u7684\u914d\u7f6e\u65b9\u5f0f\uff0c\u5177\u4f53\u9009\u62e9\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8fdb\u884c\u8c03\u6574\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728 Spring Boot \u4e2d\uff0c\u4f60\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6e\u548c\u4f7f\u7528\u4e00\u4e9b\u7279\u5b9a\u7684\u6ce8\u89e3\u6765\u89e3\u51b3\u8de8\u57df\uff08Cross-Origin\uff09\u95ee\u9898\u3002 […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[],"class_list":["post-7787","post","type-post","status-publish","format-standard","hentry","category-springboot"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/7787","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=7787"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/7787\/revisions"}],"predecessor-version":[{"id":16549,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/7787\/revisions\/16549"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=7787"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=7787"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=7787"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}