{"id":844,"date":"2013-10-28T13:24:26","date_gmt":"2013-10-28T05:24:26","guid":{"rendered":"http:\/\/www.yeetrack.com\/?p=844"},"modified":"2013-10-28T13:24:26","modified_gmt":"2013-10-28T05:24:26","slug":"httpclient-4-3%e6%95%99%e7%a8%8b-%e7%ac%ac%e5%85%ad%e7%ab%a0-http%e7%bc%93%e5%ad%98","status":"publish","type":"post","link":"https:\/\/www.yeetrack.com\/?p=844","title":{"rendered":"HttpClient 4.3\u6559\u7a0b \u7b2c\u516d\u7ae0 HTTP\u7f13\u5b58"},"content":{"rendered":"<p><meta http-equiv=\"content-type\" content=\"text\/html; charset=utf-8\" \/><br \/>\n<a name=\"General-Concepts\"><\/a><\/p>\n<h2>6.1.\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>HttpClient\u7684\u7f13\u5b58\u673a\u5236\u63d0\u4f9b\u4e00\u4e2a\u4e0eHTTP\/1.1\u6807\u51c6\u517c\u5bb9\u7684\u7f13\u5b58\u5c42 - \u76f8\u5f53\u4e8eJava\u7684\u6d4f\u89c8\u5668\u7f13\u5b58\u3002HttpClient\u7f13\u5b58\u673a\u5236\u7684\u5b9e\u73b0\u9075\u5faa\u8d23\u4efb\u94fe\uff08Chain of Responsibility\uff09\u8bbe\u8ba1\u539f\u5219\uff0c\u9ed8\u8ba4\u7684HttpClient\u662f\u6ca1\u6709\u7f13\u5b58\u7684\uff0c\u6709\u7f13\u5b58\u673a\u5236\u7684HttpClient\u53ef\u4ee5\u7528\u6765\u4e34\u65f6\u66ff\u4ee3\u9ed8\u8ba4\u7684HttpClient\uff0c\u5982\u679c\u5f00\u542f\u4e86\u7f13\u5b58\uff0c\u6211\u4eec\u7684\u8bf7\u6c42\u7ed3\u679c\u5c31\u4f1a\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\uff0c\u800c\u4e0d\u662f\u4ece\u76ee\u6807\u670d\u52a1\u5668\u4e2d\u83b7\u53d6\u3002\u5982\u679c\u5728Get\u8bf7\u6c42\u5934\u4e2d\u8bbe\u7f6e\u4e86<code>If-Modified-Since<\/code>\u6216\u8005<code>If-None-Match<\/code>\u53c2\u6570\uff0c\u90a3\u4e48HttpClient\u4f1a\u81ea\u52a8\u5411\u670d\u52a1\u5668\u6821\u9a8c\u7f13\u5b58\u662f\u5426\u8fc7\u671f\u3002<!--more--><\/p>\n<p>HTTP\/1.1\u7248\u672c\u7684\u7f13\u5b58\u662f\u8bed\u4e49\u900f\u660e\u7684\uff0c\u610f\u601d\u662f\u65e0\u8bba\u600e\u6837\uff0c\u7f13\u5b58\u90fd\u4e0d\u5e94\u8be5\u4fee\u6539\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u4f20\u8f93\u7684\u8bf7\u6c42\/\u54cd\u5e94\u6570\u636e\u5305\u3002\u56e0\u6b64\uff0c\u5728existing compliant client-server relationship\u4e2d\u4f7f\u7528\u5e26\u6709\u7f13\u5b58\u7684HttpClient\u4e5f\u5e94\u8be5\u662f\u5b89\u5168\u7684\u3002\u867d\u7136\u7f13\u5b58\u662f\u5ba2\u6237\u7aef\u7684\u4e00\u90e8\u5206\uff0c\u4f46\u662f\u4eceHttp\u534f\u8bae\u7684\u89d2\u5ea6\u6765\u770b\uff0c\u7f13\u5b58\u673a\u5236\u662f\u4e3a\u4e86\u517c\u5bb9\u900f\u660e\u7684\u7f13\u5b58\u4ee3\u7406\u3002<\/p>\n<p>\u6700\u540e\uff0cHttpClient\u7f13\u5b58\u4e5f\u652f\u6301RFC 5861\u89c4\u5b9a\u7684Cache-Control\u62d3\u5c55\uff08<code>stale-if-error'\u548c<\/code>stale-while-revalidate`)\u3002<\/p>\n<p>\u5f53\u5f00\u542f\u7f13\u5b58\u7684HttpClient\u6267\u884c\u4e00\u4e2aHttp\u8bf7\u6c42\u65f6\uff0c\u4f1a\u7ecf\u8fc7\u4e0b\u9762\u7684\u6b65\u9aa4\uff1a<\/p>\n<ul>\n<li>\u68c0\u67e5http\u8bf7\u6c42\u662f\u5426\u7b26\u5408HTTP 1.1\u7684\u57fa\u672c\u8981\u6c42\uff0c\u5982\u679c\u4e0d\u7b26\u5408\u5c31\u5c1d\u8bd5\u4fee\u6b63\u9519\u8bef\u3002<\/li>\n<li>\u5237\u65b0\u8be5\u8bf7\u6c42\u65e0\u6548\u7684\u7f13\u5b58\u9879\u3002\uff08Flush any cache entries which would be invalidated by this request.\uff09<\/li>\n<li>\u68c0\u6d4b\u8be5\u8bf7\u6c42\u662f\u5426\u53ef\u4ee5\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\u3002\u5982\u679c\u4e0d\u80fd\uff0c\u76f4\u63a5\u5c06\u8bf7\u6c42\u53d1\u9001\u7ed9\u76ee\u6807\u670d\u52a1\u5668\uff0c\u83b7\u53d6\u54cd\u5e94\u5e76\u52a0\u5165\u7f13\u5b58\u3002<\/li>\n<li>\u5982\u679c\u8be5\u8bf7\u6c42\u53ef\u4ee5\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\uff0cHttpClient\u5c31\u5c1d\u8bd5\u8bfb\u53d6\u7f13\u5b58\u4e2d\u7684\u6570\u636e\u3002\u5982\u679c\u8bfb\u53d6\u5931\u8d25\uff0c\u5c31\u4f1a\u53d1\u9001\u8bf7\u6c42\u5230\u76ee\u6807\u670d\u52a1\u5668\uff0c\u5982\u679c\u53ef\u80fd\u7684\u8bdd\uff0c\u5c31\u628a\u54cd\u5e94\u7f13\u5b58\u8d77\u6765\u3002<\/li>\n<li>\u5982\u679cHttpClient\u7f13\u5b58\u7684\u54cd\u5e94\u53ef\u4ee5\u76f4\u63a5\u8fd4\u56de\u7ed9\u8bf7\u6c42\uff0cHttpClient\u5c31\u4f1a\u6784\u5efa\u4e00\u4e2a\u5305\u542b<code>ByteArrayEntity<\/code>\u7684<code>BasicHttpResponse<\/code>\u5bf9\u8c61\uff0c\u5e76\u5c06\u5b83\u8fd4\u56de\u7ed9http\u8bf7\u6c42\u3002\u5426\u5219\uff0cHttpClient\u4f1a\u5411\u670d\u52a1\u5668\u91cd\u65b0\u6821\u9a8c\u7f13\u5b58\u3002<\/li>\n<li>\u5982\u679cHttpClient\u7f13\u5b58\u7684\u54cd\u5e94\uff0c\u5411\u670d\u52a1\u5668\u6821\u9a8c\u5931\u8d25\uff0c\u5c31\u4f1a\u5411\u670d\u52a1\u5668\u91cd\u65b0\u8bf7\u6c42\u6570\u636e\uff0c\u5e76\u5c06\u5176\u7f13\u5b58\u8d77\u6765\uff08\u5982\u679c\u5408\u9002\u7684\u8bdd\uff09\u3002<br \/>\n\u5f53\u5f00\u542f\u7f13\u5b58\u7684HttpClient\u6536\u5230\u670d\u52a1\u5668\u7684\u54cd\u5e94\u65f6\uff0c\u4f1a\u7ecf\u8fc7\u4e0b\u9762\u7684\u6b65\u9aa4\uff1a<\/li>\n<li>\u68c0\u67e5\u6536\u5230\u7684\u54cd\u5e94\u662f\u5426\u7b26\u5408\u534f\u8bae\u517c\u5bb9\u6027<\/li>\n<li>\u786e\u5b9a\u6536\u5230\u7684\u54cd\u5e94\u662f\u5426\u53ef\u4ee5\u7f13\u5b58<\/li>\n<li>\u5982\u679c\u54cd\u5e94\u662f\u53ef\u4ee5\u7f13\u5b58\u7684\uff0cHttpClient\u5c31\u4f1a\u5c3d\u91cf\u4ece\u54cd\u5e94\u6d88\u606f\u4e2d\u8bfb\u53d6\u6570\u636e\uff08\u5927\u5c0f\u53ef\u4ee5\u5728\u914d\u7f6e\u6587\u4ef6\u8fdb\u884c\u914d\u7f6e\uff09\uff0c\u5e76\u4e14\u7f13\u5b58\u8d77\u6765\u3002<\/li>\n<li>\u5982\u679c\u54cd\u5e94\u6570\u636e\u592a\u5927\uff0c\u7f13\u5b58\u6216\u8005\u91cd\u6784\u6d88\u8017\u7684\u54cd\u5e94\u7a7a\u95f4\u4e0d\u591f\uff0c\u5c31\u4f1a\u76f4\u63a5\u8fd4\u56de\u54cd\u5e94\uff0c\u4e0d\u8fdb\u884c\u7f13\u5b58\u3002<br \/>\n\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5e26\u6709\u7f13\u5b58\u7684HttpClient\u4e0d\u662fHttpClient\u7684\u53e6\u4e00\u79cd\u5b9e\u73b0\uff0c\u800c\u662f\u901a\u8fc7\u5411http\u8bf7\u6c42\u6267\u884c\u7ba1\u9053\u4e2d\u63d2\u5165\u9644\u52a0\u5904\u7406\u7ec4\u4ef6\u6765\u5b9e\u73b0\u7684\u3002<\/li>\n<\/ul>\n<p><a name=\"RFC-2616-Compliance\"><\/a><\/p>\n<h2>6.2. RFC-2616 Compliance<\/h2>\n<p>HttpClient\u7684\u7f13\u5b58\u673a\u5236\u548cRFC-2626\u6587\u6863\u89c4\u5b9a\u662f\u65e0\u6761\u4ef6\u517c\u5bb9\u7684\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u53ea\u8981\u6307\u5b9a\u4e86<code>MUST<\/code>\uff0c<code>MUST NOT<\/code>\uff0c<code>SHOULD<\/code>\u6216\u8005<code>SHOULD NOT<\/code>\u8fd9\u4e9bHttp\u7f13\u5b58\u89c4\u8303\uff0cHttpClient\u7684\u7f13\u5b58\u5c42\u5c31\u4f1a\u6309\u7167\u6307\u5b9a\u7684\u65b9\u5f0f\u8fdb\u884c\u7f13\u5b58\u3002\u5373\u5f53\u6211\u4eec\u4f7f\u7528HttpClient\u7684\u7f13\u5b58\u673a\u5236\u65f6\uff0cHttpClient\u7684\u7f13\u5b58\u6a21\u5757\u4e0d\u4f1a\u4ea7\u751f\u5f02\u5e38\u52a8\u4f5c\u3002<\/p>\n<p><a name=\"Example-Usage\"><\/a><\/p>\n<h2>6.3. \u4f7f\u7528\u8303\u4f8b<\/h2>\n<p>\u4e0b\u9762\u7684\u4f8b\u5b50\u8bb2\u8ff0\u4e86\u5982\u4f55\u521b\u5efa\u4e00\u4e2a\u57fa\u672c\u7684\u5f00\u542f\u7f13\u5b58\u7684HttpClient\u3002\u5e76\u4e14\u914d\u7f6e\u4e86\u6700\u5927\u7f13\u5b581000\u4e2aObject\u5bf9\u8c61\uff0c\u6bcf\u4e2a\u5bf9\u8c61\u6700\u5927\u5360\u75288192\u5b57\u8282\u6570\u636e\u3002\u4ee3\u7801\u4e2d\u51fa\u73b0\u7684\u6570\u636e\uff0c\u53ea\u662f\u4e3a\u4e86\u505a\u6f14\u793a\uff0c\u800c\u8fc7\u4e0d\u662f\u63a8\u8350\u4f7f\u7528\u7684\u914d\u7f6e\u3002<\/p>\n<pre><code>    CacheConfig cacheConfig = CacheConfig.custom()\n            .setMaxCacheEntries(1000)\n            .setMaxObjectSize(8192)\n            .build();\n    RequestConfig requestConfig = RequestConfig.custom()\n            .setConnectTimeout(30000)\n            .setSocketTimeout(30000)\n            .build();\n    CloseableHttpClient cachingClient = caching HttpClients.custom()\n            .setCacheConfig(cacheConfig)\n            .setDefaultRequestConfig(requestConfig)\n            .build();\n\n    HttpCacheContext context = HttpCacheContext.create();\n    HttpGet httpget = new HttpGet(\"http:\/\/www.mydomain.com\/content\/\");\n    CloseableHttpResponse response = cachingClient.execute(httpget, context);\n    try {\n        CacheResponseStatus responseStatus = context.getCacheResponseStatus();\n        switch (responseStatus) {\n            case CACHE_HIT:\n                System.out.println(\"A response was generated from the cache with \" +\n                        \"no requests sent upstream\");\n                break;\n            case CACHE_MODULE_RESPONSE:\n                System.out.println(\"The response was generated directly by the \" +\n                \"caching module\");\n                break;\n            case CACHE_MISS:\n                System.out.println(\"The response came from an upstream server\");\n                break;\n            case VALIDATED:\n                System.out.println(\"The response was generated from the cache \" +\n                \"after validating the entry with the origin server\");\n                break;\n        }\n    } finally {\n        response.close();\n     }\n<\/code><\/pre>\n<p><a name=\"Configuration\"><\/a><\/p>\n<h2>6.4. \u914d\u7f6e<\/h2>\n<p>\u6709\u7f13\u5b58\u7684HttpClient\u7ee7\u627f\u4e86\u975e\u7f13\u5b58HttpClient\u7684\u6240\u6709\u914d\u7f6e\u9879\u548c\u53c2\u6570\uff08\u5305\u62ec\u8d85\u65f6\u65f6\u95f4\uff0c\u8fde\u63a5\u6c60\u5927\u5c0f\u7b49\u914d\u7f6e\u9879\uff09\u3002\u5982\u679c\u9700\u8981\u5bf9\u7f13\u5b58\u8fdb\u884c\u5177\u4f53\u914d\u7f6e\uff0c\u53ef\u4ee5\u521d\u59cb\u5316\u4e00\u4e2a<code>CacheConfig<\/code>\u5bf9\u8c61\u6765\u81ea\u5b9a\u4e49\u4e0b\u9762\u7684\u53c2\u6570\uff1a<\/p>\n<ul>\n<li><code>Cache size<\/code>\uff08\u7f13\u5b58\u5927\u5c0f\uff09. \u5982\u679c\u540e\u53f0\u5b58\u50a8\u652f\u6301\uff0c\u6211\u4eec\u53ef\u4ee5\u6307\u5b9a\u7f13\u5b58\u7684\u6700\u5927\u6761\u6570\uff0c\u548c\u6bcf\u4e2a\u7f13\u5b58\u4e2d\u5b58\u50a8\u7684response\u7684\u6700\u5927size\u3002<\/li>\n<li><code>Public\/private cacheing<\/code>(\u516c\u7528\/\u79c1\u6709 \u7f13\u5b58\uff09. \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u7f13\u5b58\u6a21\u5757\u4f1a\u628a\u7f13\u5b58\u5f53\u505a\u516c\u7528\u7684\u7f13\u5b58\uff0c\u6240\u4ee5\u7f13\u5b58\u673a\u5236\u4e0d\u4f1a\u7f13\u5b58\u5e26\u6709\u6388\u6743\u5934\u6d88\u606f\u6216\u8005\u6307\u5b9a<code>Cache-Control:private<\/code>\u7684\u54cd\u5e94\u3002\u4f46\u662f\u5982\u679c\u7f13\u5b58\u53ea\u4f1a\u88ab\u4e00\u4e2a\u903b\u8f91\u4e0a\u7684\u7528\u6237\u4f7f\u7528\uff08\u548c\u6d4f\u89c8\u5668\u997f\u7f13\u5b58\u7c7b\u4f3c\uff09\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u5173\u95ed\u7f13\u5b58\u5171\u4eab\u673a\u5236\u3002<\/li>\n<li><code>Heuristic caching<\/code>\uff08\u542f\u53d1\u5f0f\u7f13\u5b58\uff09\u3002\u5373\u4f7f\u670d\u52a1\u5668\u6ca1\u6709\u660e\u786e\u8bbe\u7f6e\u7f13\u5b58\u63a7\u5236headers\u4fe1\u606f\uff0c\u6bcf\u4e2aRFC2616\u7f13\u5b58\u4e5f\u4f1a\u5b58\u50a8\u4e00\u5b9a\u6570\u76ee\u7684\u7f13\u5b58\u3002\u8fd9\u4e2a\u7279\u5f81\u5728HttpClient\u4e2d\u9ed8\u8ba4\u662f\u5173\u95ed\u7684\uff0c\u5982\u679c\u670d\u52a1\u5668\u4e0d\u8bbe\u7f6e\u63a7\u5236\u7f13\u5b58\u7684header\u4fe1\u606f\uff0c\u4f46\u662f\u6211\u4eec\u4ecd\u7136\u5e0c\u671b\u5bf9\u54cd\u5e94\u8fdb\u884c\u7f13\u5b58\uff0c\u5c31\u9700\u8981\u5728HttpClient\u4e2d\u6253\u5f00\u8fd9\u4e2a\u529f\u80fd\u3002\u6fc0\u6d3b\u542f\u53d1\u5f0f\u7f13\u5b58\uff0c\u7136\u540e\u4f7f\u7528\u9ed8\u8ba4\u7684\u5237\u65b0\u65f6\u95f4\u6216\u8005\u81ea\u5b9a\u4e49\u5237\u65b0\u65f6\u95f4\u3002\u66f4\u591a\u542f\u53d1\u5f0f\u7f13\u5b58\u7684\u4fe1\u606f\uff0c\u53ef\u4ee5\u53c2\u8003Http\/1.1 RFC\u6587\u6863\u768413.2.2\u5c0f\u8282\uff0c13.2.4\u5c0f\u8282\u3002<\/li>\n<li><code>Background validation<\/code>(\u540e\u53f0\u6821\u9a8c\uff09\u3002HttpClient\u7684\u7f13\u5b58\u673a\u5236\u652f\u6301RFC5861\u7684<code>stale-while-revalidate<\/code>\u6307\u4ee4\uff0c\u5b83\u5141\u8bb8\u4e00\u5b9a\u6570\u76ee\u7684\u7f13\u5b58\u5728\u540e\u53f0\u6821\u9a8c\u662f\u5426\u8fc7\u671f\u3002\u6211\u4eec\u53ef\u80fd\u9700\u8981\u8c03\u6574\u53ef\u4ee5\u5728\u540e\u53f0\u5de5\u4f5c\u7684\u6700\u5927\u548c\u6700\u5c0f\u7684\u7ebf\u7a0b\u6570\uff0c\u4ee5\u53ca\u8bbe\u7f6e\u7ebf\u7a0b\u5728\u56de\u6536\u524d\u6700\u5927\u7684\u7a7a\u95f2\u65f6\u95f4\u3002\u5f53\u6ca1\u6709\u8db3\u591f\u7ebf\u7a0b\u6765\u6821\u9a8c\u7f13\u5b58\u662f\u5426\u8fc7\u671f\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u6307\u5b9a\u6392\u961f\u961f\u5217\u7684\u5927\u5c0f\u3002<\/li>\n<\/ul>\n<p><a name=\"Storage-Backends\"><\/a><\/p>\n<h2>6.4.\u5b58\u50a8\u4ecb\u8d28<\/h2>\n<p>\u9ed8\u8ba4\uff0cHttpClient\u7f13\u5b58\u673a\u5236\u5c06\u7f13\u5b58\u6761\u76ee\u548c\u7f13\u5b58\u7684response\u653e\u5728\u672c\u5730\u7a0b\u5e8f\u7684jvm\u5185\u5b58\u4e2d\u3002\u8fd9\u6837\u867d\u7136\u63d0\u4f9b\u9ad8\u6027\u80fd\uff0c\u4f46\u662f\u5f53\u6211\u4eec\u7684\u7a0b\u5e8f\u5185\u5b58\u6709\u5927\u5c0f\u9650\u5236\u7684\u65f6\u5019\uff0c\u8fd9\u5c31\u4f1a\u53d8\u5f97\u4e0d\u592a\u5408\u7406\u3002\u56e0\u4e3a\u7f13\u5b58\u7684\u751f\u547d\u4e2d\u671f\u5f88\u77ed\uff0c\u5982\u679c\u7a0b\u5e8f\u91cd\u542f\uff0c\u7f13\u5b58\u5c31\u4f1a\u5931\u6548\u3002\u5f53\u524d\u7248\u672c\u7684HttpClient\u4f7f\u7528EhCache\u548cmemchached\u6765\u5b58\u50a8\u7f13\u5b58\uff0c\u8fd9\u6837\u5c31\u652f\u6301\u5c06\u7f13\u5b58\u653e\u5230\u672c\u5730\u78c1\u76d8\u6216\u8005\u5176\u4ed6\u5b58\u50a8\u4ecb\u8d28\u4e0a\u3002\u5982\u679c\u5185\u5b58\u3001\u672c\u5730\u78c1\u76d8\u3001\u5916\u5730\u78c1\u76d8\uff0c\u90fd\u4e0d\u9002\u5408\u4f60\u7684\u5e94\u7528\u7a0b\u5e8f\uff0cHttpClient\u4e5f\u652f\u6301\u81ea\u5b9a\u4e49\u5b58\u50a8\u4ecb\u8d28\uff0c\u53ea\u9700\u8981\u5b9e\u73b0<code>HttpCacheStorage<\/code>\u63a5\u53e3\uff0c\u7136\u540e\u5728\u521b\u5efaHttpClient\u65f6\uff0c\u4f7f\u7528\u8fd9\u4e2a\u63a5\u53e3\u7684\u914d\u7f6e\u3002\u8fd9\u79cd\u60c5\u51b5\uff0c\u7f13\u5b58\u4f1a\u5b58\u50a8\u5728\u81ea\u5b9a\u4e49\u7684\u4ecb\u8d28\u4e2d\uff0c\u4f46\u662fyou will get to reuse all of the logic surrounding HTTP\/1.1 compliance and cache handling. \u4e00\u822c\u6765\u8bf4\uff0c\u53ef\u4ee5\u521b\u5efa\u51fa\u652f\u6301\u4efb\u4f55\u952e\u503c\u5bf9\u6307\u5b9a\u5b58\u50a8\uff08\u7c7b\u4f3cJava Map\u63a5\u53e3\uff09\u7684<code>HttpCacheStorage<\/code>\uff0c\u7528\u4e8e\u8fdb\u884c\u539f\u5b50\u66f4\u65b0\u3002<\/p>\n<p>\u6700\u540e\uff0c\u901a\u8fc7\u4e00\u4e9b\u989d\u5916\u7684\u5de5\u4f5c\uff0c\u8fd8\u53ef\u4ee5\u5efa\u7acb\u8d77\u591a\u5c42\u6b21\u7684\u7f13\u5b58\u7ed3\u6784;\u78c1\u76d8\u4e2d\u7684\u7f13\u5b58\uff0c\u8fdc\u7a0bmemcached\u4e2d\u7684\u7f13\u5b58\uff0c\u865a\u62df\u5185\u5b58\u4e2d\u7684\u7f13\u5b58\uff0cL1\/L2\u5904\u7406\u5668\u4e2d\u7684\u7f13\u5b58\u7b49\u3002<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>6.1.\u57fa\u672c\u6982\u5ff5 HttpClient\u7684\u7f13\u5b58\u673a\u5236\u63d0\u4f9b\u4e00\u4e2a\u4e0eHTTP\/1.1\u6807\u51c6\u517c\u5bb9\u7684\u7f13\u5b58\u5c42 &#8211; 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Respon&#46;&#46;&#46;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"pgc_sgb_lightbox_settings":"","footnotes":""},"categories":[33],"tags":[8,15,7,5],"class_list":["post-844","post","type-post","status-publish","format-standard","hentry","category-coding","tag-java","tag-15","tag-7","tag-5"],"views":7233,"_links":{"self":[{"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/posts\/844","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=844"}],"version-history":[{"count":1,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/posts\/844\/revisions"}],"predecessor-version":[{"id":845,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/posts\/844\/revisions\/845"}],"wp:attachment":[{"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=844"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=844"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}