{"id":5110,"date":"2020-09-20T19:27:40","date_gmt":"2020-09-20T11:27:40","guid":{"rendered":"https:\/\/www.xttblog.com\/?p=5110"},"modified":"2020-09-20T19:27:40","modified_gmt":"2020-09-20T11:27:40","slug":"%e6%89%8b%e6%8a%8a%e6%89%8b%e6%95%99%e4%bd%a0-java-%e8%a7%a3%e5%86%b3%e8%b7%a8%e5%9f%9f%e9%97%ae%e9%a2%98%e7%9a%845%e7%a7%8d%e6%96%b9%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=5110","title":{"rendered":"\u624b\u628a\u624b\u6559\u4f60 Java \u89e3\u51b3\u8de8\u57df\u95ee\u9898\u76845\u79cd\u65b9\u5f0f"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u5f15\u8a00<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u7ecf\u5e38\u4f1a\u9047\u5230\u524d\u540e\u7aef\u5206\u79bb\u800c\u5bfc\u81f4\u7684\u8de8\u57df\u95ee\u9898\uff0c\u5bfc\u81f4\u65e0\u6cd5\u83b7\u53d6\u8fd4\u56de\u7ed3\u679c\u3002\u8de8\u57df\u5c31\u50cf\u5206\u79bb\u524d\u7aef\u548c\u540e\u7aef\u7684\u4e00\u9053\u9e3f\u6c9f\uff0c\u541b\u5728\u8fd9\u8fb9\uff0c\u5979\u5728\u90a3\u8fb9\uff0c\u4e24\u4e24\u4e0d\u80fd\u5f80\u6765\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4ec0\u4e48\u662f\u8de8\u57df\uff08CORS\uff09<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u8de8\u57df\uff08CORS\uff09\u662f\u6307\u4e0d\u540c\u57df\u540d\u4e4b\u95f4\u76f8\u4e92\u8bbf\u95ee\u3002\u8de8\u57df\uff0c\u6307\u7684\u662f\u6d4f\u89c8\u5668\u4e0d\u80fd\u6267\u884c\u5176\u4ed6\u7f51\u7ad9\u7684\u811a\u672c\uff0c\u5b83\u662f\u7531\u6d4f\u89c8\u5668\u7684\u540c\u6e90\u7b56\u7565\u6240\u9020\u6210\u7684\uff0c\u662f\u6d4f\u89c8\u5668\u5bf9\u4e8eJavaScript\u6240\u5b9a\u4e49\u7684\u5b89\u5168\u9650\u5236\u7b56\u7565\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4ec0\u4e48\u60c5\u51b5\u4f1a\u8de8\u57df<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>\u540c\u4e00\u534f\u8bae\uff0c \u5982http\u6216https<\/li><li>\u540c\u4e00IP\u5730\u5740, \u5982127.0.0.1<\/li><li>\u540c\u4e00\u7aef\u53e3, \u59828080<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0a\u4e09\u4e2a\u6761\u4ef6\u4e2d\u6709\u4e00\u4e2a\u6761\u4ef6\u4e0d\u540c\u5c31\u4f1a\u4ea7\u751f\u8de8\u57df\u95ee\u9898\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u524d\u7aef\u89e3\u51b3\u65b9\u6848<\/h2>\n\n\n\n<ol class=\"wp-block-list\"><li>\u4f7f\u7528JSONP\u65b9\u5f0f\u5b9e\u73b0\u8de8\u57df\u8c03\u7528\uff1b<\/li><li>\u4f7f\u7528NodeJS\u670d\u52a1\u5668\u505a\u4e3a\u670d\u52a1\u4ee3\u7406\uff0c\u524d\u7aef\u53d1\u8d77\u8bf7\u6c42\u5230NodeJS\u670d\u52a1\u5668\uff0c NodeJS\u670d\u52a1\u5668\u4ee3\u7406\u8f6c\u53d1\u8bf7\u6c42\u5230\u540e\u7aef\u670d\u52a1\u5668\uff1b<\/li><\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u540e\u7aef\u89e3\u51b3\u65b9\u6848<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>nginx\u53cd\u5411\u4ee3\u7406\u89e3\u51b3\u8de8\u57df<\/li><li>\u670d\u52a1\u7aef\u8bbe\u7f6eResponse Header(\u54cd\u5e94\u5934\u90e8)\u7684Access-Control-Allow-Origin<\/li><li>\u5728\u9700\u8981\u8de8\u57df\u8bbf\u95ee\u7684\u7c7b\u548c\u65b9\u6cd5\u4e2d\u8bbe\u7f6e\u5141\u8bb8\u8de8\u57df\u8bbf\u95ee\uff08\u5982Spring\u4e2d\u4f7f\u7528@CrossOrigin\u6ce8\u89e3\uff09\uff1b<\/li><li>\u7ee7\u627f\u4f7f\u7528Spring Web\u7684CorsFilter\uff08\u9002\u7528\u4e8eSpring MVC\u3001Spring Boot\uff09<\/li><li>\u5b9e\u73b0WebMvcConfigurer\u63a5\u53e3\uff08\u9002\u7528\u4e8eSpring Boot\uff09<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f7f\u7528Filter\u65b9\u5f0f\u8fdb\u884c\u8bbe\u7f6e<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528Filter\u8fc7\u6ee4\u5668\u6765\u8fc7\u6ee4\u670d\u52a1\u8bf7\u6c42\uff0c\u5411\u8bf7\u6c42\u7aef\u8bbe\u7f6eResponse Header(\u54cd\u5e94\u5934\u90e8)\u7684Access-Control-Allow-Origin\u5c5e\u6027\u58f0\u660e\u5141\u8bb8\u8de8\u57df\u8bbf\u95ee\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@WebFilter\npublic class CorsFilter implements Filter {  \n    @Override\n    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {  \n        HttpServletResponse response = (HttpServletResponse) res;  \n        response.setHeader(\"Access-Control-Allow-Origin\", \"*\");  \n        response.setHeader(\"Access-Control-Allow-Methods\", \"*\");  \n        response.setHeader(\"Access-Control-Max-Age\", \"3600\");  \n        response.setHeader(\"Access-Control-Allow-Headers\", \"*\");\n        response.setHeader(\"Access-Control-Allow-Credentials\", \"true\");\n        chain.doFilter(req, res);  \n    }  \n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u7ee7\u627f HandlerInterceptorAdapter<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>@Component\npublic class CrossInterceptor extends HandlerInterceptorAdapter {\n    @Override\n    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {\n        response.setHeader(\"Access-Control-Allow-Origin\", \"*\");\n        response.setHeader(\"Access-Control-Allow-Methods\", \"GET, POST, PUT, DELETE, OPTIONS\");\n        response.setHeader(\"Access-Control-Max-Age\", \"3600\");\n        response.setHeader(\"Access-Control-Allow-Headers\", \"*\");\n        response.setHeader(\"Access-Control-Allow-Credentials\", \"true\");\n        return true;\n    }\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b9e\u73b0 WebMvcConfigurer<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>@Configuration\n@SuppressWarnings(\"SpringJavaAutowiredFieldsWarningInspection\")\npublic class AppConfig implements WebMvcConfigurer {\n    @Override\n    public void addCorsMappings(CorsRegistry registry) {\n        registry.addMapping(\"\/**\")  \/\/ \u62e6\u622a\u6240\u6709\u7684\u8bf7\u6c42\n                .allowedOrigins(\"http:\/\/www.abc.com\")  \/\/ \u53ef\u8de8\u57df\u7684\u57df\u540d\uff0c\u53ef\u4ee5\u4e3a *\n                .allowCredentials(true)\n                .allowedMethods(\"*\")   \/\/ \u5141\u8bb8\u8de8\u57df\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5355\u72ec\u914d\u7f6e\n                .allowedHeaders(\"*\");  \/\/ \u5141\u8bb8\u8de8\u57df\u7684\u8bf7\u6c42\u5934\uff0c\u53ef\u4ee5\u5355\u72ec\u914d\u7f6e\n    }\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f7f\u7528Nginx\u914d\u7f6e<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>location \/ {\n   add_header Access-Control-Allow-Origin *;\n   add_header Access-Control-Allow-Headers X-Requested-With;\n   add_header Access-Control-Allow-Methods GET,POST,PUT,DELETE,OPTIONS;\n\n   if ($request_method = 'OPTIONS') {\n     return 204;\n   }\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f7f\u7528 @CrossOrgin \u6ce8\u89e3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u53ea\u662f\u60f3\u90e8\u5206\u63a5\u53e3\u8de8\u57df\uff0c\u4e14\u4e0d\u60f3\u4f7f\u7528\u914d\u7f6e\u6765\u7ba1\u7406\u7684\u8bdd\uff0c\u53ef\u4ee5\u4f7f\u7528\u8fd9\u79cd\u65b9\u5f0f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728Controller\u4f7f\u7528\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@CrossOrigin\n@RestController\n@RequestMapping(\"\/user\")\npublic class UserController {\n    @GetMapping(\"\/{id}\")\n    public User get(@PathVariable Long id) {\n    }\n    @DeleteMapping(\"\/{id}\")\n    public void remove(@PathVariable Long id) {\n    }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u5177\u4f53\u63a5\u53e3\u4e0a\u4f7f\u7528\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@RestController\n@RequestMapping(\"\/user\")\npublic class UserController {\n\n    @CrossOrigin\n    @GetMapping(\"\/{id}\")\n    public User get(@PathVariable Long id) {\n        \n    }\n\n    @DeleteMapping(\"\/{id}\")\n    public void remove(@PathVariable Long id) {\n\n    }\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Spring Cloud Gateway \u8de8\u57df\u914d\u7f6e<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>spring: \n  cloud:\n    gateway:\n      globalcors:\n        cors-configurations:\n          '[\/**]':\n            # \u5141\u8bb8\u8de8\u57df\u7684\u6e90(\u7f51\u7ad9\u57df\u540d\/ip)\uff0c\u8bbe\u7f6e*\u4e3a\u5168\u90e8\n            # \u5141\u8bb8\u8de8\u57df\u8bf7\u6c42\u91cc\u7684head\u5b57\u6bb5\uff0c\u8bbe\u7f6e*\u4e3a\u5168\u90e8\n            # \u5141\u8bb8\u8de8\u57df\u7684method\uff0c \u9ed8\u8ba4\u4e3aGET\u548cOPTIONS\uff0c\u8bbe\u7f6e*\u4e3a\u5168\u90e8\n            allow-credentials: true\n            allowed-origins:\n              - \"http:\/\/xb.abc.com\"\n              - \"http:\/\/sf.xx.com\"\n            allowed-headers: \"*\"\n            allowed-methods:\n              - OPTIONS\n              - GET\n              - POST\n              - DELETE\n              - PUT\n              - PATCH\n            max-age: 3600<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\u610f\uff1a \u901a\u8fc7gateway \u8f6c\u53d1\u7684\u5176\u4ed6\u9879\u76ee\uff0c\u4e0d\u8981\u8fdb\u884c\u914d\u7f6e\u8de8\u57df\u914d\u7f6e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6709\u65f6\u5373\u4f7f\u914d\u7f6e\u4e86\u4e5f\u4e0d\u4f1a\u8d77\u4f5c\u7528\uff0c\u8fd9\u65f6\u4f60\u53ef\u4ee5\u6839\u636e\u6d4f\u89c8\u5668\u63a7\u5236\u7684\u9519\u8bef\u8f93\u51fa\u6765\u67e5\u770b\u95ee\u9898\uff0c\u5982\u679c\u63d0\u793a\u662f response \u4e2d header \u51fa\u73b0\u4e86\u91cd\u590d\u7684 Access-Control-* \u8bf7\u6c42\u5934\uff0c\u53ef\u4ee5\u8fdb\u884c\u5982\u4e0b\u64cd\u4f5c\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import java.util.ArrayList;\nimport org.springframework.cloud.gateway.filter.GatewayFilterChain;\nimport org.springframework.cloud.gateway.filter.GlobalFilter;\nimport org.springframework.cloud.gateway.filter.NettyWriteResponseFilter;\nimport org.springframework.core.Ordered;\nimport org.springframework.http.HttpHeaders;\nimport org.springframework.stereotype.Component;\nimport org.springframework.web.server.ServerWebExchange;\nimport reactor.core.publisher.Mono;\n\n@Component(\"corsResponseHeaderFilter\")\npublic class CorsResponseHeaderFilter implements GlobalFilter, Ordered {\n\n  @Override\n  public int getOrder() {\n    \/\/ \u6307\u5b9a\u6b64\u8fc7\u6ee4\u5668\u4f4d\u4e8eNettyWriteResponseFilter\u4e4b\u540e\n    \/\/ \u5373\u5f85\u5904\u7406\u5b8c\u54cd\u5e94\u4f53\u540e\u63a5\u7740\u5904\u7406\u54cd\u5e94\u5934\n    return NettyWriteResponseFilter.WRITE_RESPONSE_FILTER_ORDER + 1;\n  }\n\n  @Override\n  public Mono&lt;Void&gt; filter(ServerWebExchange exchange, GatewayFilterChain chain) {\n    return chain.filter(exchange).then(Mono.defer(() -&gt; {\n      exchange.getResponse().getHeaders().entrySet().stream()\n          .filter(kv -&gt; (kv.getValue() != null &amp;&amp; kv.getValue().size() &gt; 1))\n          .filter(kv -&gt; (\n              kv.getKey().equals(HttpHeaders.ACCESS_CONTROL_ALLOW_ORIGIN)\n                  || kv.getKey().equals(HttpHeaders.ACCESS_CONTROL_ALLOW_CREDENTIALS)\n                  || kv.getKey().equals(HttpHeaders.ACCESS_CONTROL_ALLOW_METHODS)\n                  || kv.getKey().equals(HttpHeaders.ACCESS_CONTROL_ALLOW_HEADERS)\n                  || kv.getKey().equals(HttpHeaders.ACCESS_CONTROL_MAX_AGE)))\n          .forEach(kv -&gt; {\n            kv.setValue(new ArrayList&lt;String&gt;() {{\n              add(kv.getValue().get(0));\n            }});\n          });\n      return chain.filter(exchange);\n    }));\n  }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0a\u5185\u5bb9\u5efa\u8bae\u5927\u5bb6\u4f5c\u4e3a\u7b14\u8bb0\u6536\u85cf\u8d77\u6765\uff0c\u5982\u679c\u4f60\u54ea\u5929\u4e5f\u9047\u5230\u8de8\u8d8a\u95ee\u9898\uff0c\u76f4\u63a5\u590d\u5236\u51fa\u6765\u5c31\u53ef\u4ee5\u4f7f\u7528\uff01<\/p>\n<!-- <audio autoplay=\"autoplay\" height=\"100\" width=\"100\" hidden=\"true\"><source src=\"https:\/\/c.coka.la\/orAvPR.mp3\" type=\"audio\/mp3\"\/><\/audio><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/> --><p><!-- <img decoding=\"async\" src=\"https:\/\/raw.githubusercontent.com\/xmt1139057136\/xttblog\/master\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/>--><img decoding=\"async\" src=\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/><\/p><p>\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01<b>\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1a<font color=\"red\">xttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p><p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a<a href=\"https:\/\/www.xttblog.com\">\u4e1a\u4f59\u8349<\/a>\uff1a &raquo; <a href=\"https:\/\/www.xttblog.com\/?p=5110\">\u624b\u628a\u624b\u6559\u4f60 Java \u89e3\u51b3\u8de8\u57df\u95ee\u9898\u76845\u79cd\u65b9\u5f0f<\/a><\/p><!-- <div class=\"bd-reward-stl\"><button id=\"bdRewardBtn\"><span><\/span><\/button><\/div> -->","protected":false},"excerpt":{"rendered":"<p>\u5f15\u8a00 \u6211\u4eec\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u7ecf\u5e38\u4f1a\u9047\u5230\u524d\u540e\u7aef\u5206\u79bb\u800c\u5bfc\u81f4\u7684\u8de8\u57df\u95ee\u9898\uff0c\u5bfc\u81f4\u65e0\u6cd5\u83b7\u53d6\u8fd4\u56de\u7ed3\u679c\u3002\u8de8\u57df\u5c31\u50cf\u5206\u79bb\u524d\u7aef\u548c\u540e\u7aef\u7684\u4e00\u9053 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[2096,2073,1601,1152,413],"class_list":["post-5110","post","type-post","status-publish","format-standard","hentry","category-java","tag-crossorigin-2","tag-cors","tag-crossorigin","tag-nginx","tag-springmvc"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/5110","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5110"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/5110\/revisions"}],"predecessor-version":[{"id":5111,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/5110\/revisions\/5111"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5110"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5110"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5110"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}