{"id":184,"date":"2022-12-27T00:09:56","date_gmt":"2023-07-15T22:09:32","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8java-httpurlconnection%e8%bf%9b%e8%a1%8chttp-get%e5%92%8cpost%e8%af%b7%e6%b1%82\/"},"modified":"2025-08-01T02:05:00","modified_gmt":"2025-07-31T18:05:00","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8java-httpurlconnection%e8%bf%9b%e8%a1%8chttp-get%e5%92%8cpost%e8%af%b7%e6%b1%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8java-httpurlconnection%e8%bf%9b%e8%a1%8chttp-get%e5%92%8cpost%e8%af%b7%e6%b1%82\/","title":{"rendered":"Java HttpURLConnection\u6559\u7a0b\uff1a\u5b9e\u73b0HTTP GET\u4e0ePOST\u8bf7\u6c42"},"content":{"rendered":"

Java HttpURLConnection\uff1aHTTP GET\u4e0ePOST\u8bf7\u6c42\u8be6\u89e3<\/h3>\n

\u672c\u6587\u662f\u300a\u5982\u4f55\u4f7f\u7528Java HttpURLConnection\u8fdb\u884cHTTP GET\u548cPOST\u8bf7\u6c42\u300b\u7cfb\u5217\u6587\u7ae0\u7684\u7b2c\u4e00\u90e8\u5206\uff08\u5171\u4e09\u90e8\u5206\uff09\u3002<\/p>\n

\u5728Java\u4e2d\uff0cjava.net<\/code>\u5305\u4e0b\u7684HttpURLConnection<\/code>\u7c7b\u662f\u7528\u4e8e\u4ee5\u7f16\u7a0b\u65b9\u5f0f\u53d1\u9001HTTP\u8bf7\u6c42\u7684\u5173\u952e\u5de5\u5177\u3002\u672c\u6587\u5c06\u6df1\u5165\u8bb2\u89e3\u5982\u4f55\u5728Java\u7a0b\u5e8f\u4e2d\u5229\u7528HttpURLConnection<\/code>\u53d1\u9001GET\u548cPOST\u8bf7\u6c42\uff0c\u5e76\u5904\u7406\u5176\u54cd\u5e94\u3002<\/p>\n

\u524d\u7f6e\u6761\u4ef6<\/h2>\n

\u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3\u548c\u5b9e\u8df5\u672cHttpURLConnection<\/code>\u793a\u4f8b\uff0c\u5efa\u8bae\u60a8\u5df2\u5b8c\u6210Spring MVC\u6559\u7a0b\uff0c\u56e0\u4e3a\u5176\u4e2d\u5305\u542b\u4e86\u7528\u4e8eGET\u548cPOST HTTP\u65b9\u6cd5\u7684URL\u3002\u8bf7\u786e\u4fdd\u5c06\u76f8\u5173\u5e94\u7528\u90e8\u7f72\u5230\u672c\u5730\u7684Tomcat\u670d\u52a1\u5668\u3002<\/p>\n

SpringMVCExample \u6458\u8981<\/h3>\n

Java HTTP GET \u8bf7\u6c42\u793a\u4f8b\uff1a<\/h4>\n
    \n
  • localhost:8080\/SpringMVCExample\/<\/code><\/li>\n<\/ul>\n

    Java HTTP GET \u8bf7\u6c42\u767b\u5f55\u9875\u9762\u793a\u4f8b\uff1a<\/h4>\n
      \n
    • localhost:8080\/SpringMVCExample\/login<\/code><\/li>\n<\/ul>\n

      Java HTTP POST \u8bf7\u6c42\u793a\u4f8b\uff1a<\/h4>\n
        \n
      • localhost:8080\/SpringMVCExample?userName=Pankaj<\/code><\/li>\n
      • localhost:8080\/SpringMVCExample\/login?userName=Pankaj&pwd=apple123<\/code> – \u9002\u7528\u4e8e\u591a\u4e2a\u53c2\u6570<\/li>\n<\/ul>\n

        \u4ece\u8868\u5355\u4e2d\u89e3\u6790\u53c2\u6570<\/h3>\n

        \u767b\u5f55\u9875\u9762\u7684HTML\u4ee3\u7801\u5982\u4e0b\u6240\u793a\uff0c\u5176\u4e2d\u5305\u542b\u4e86\u7528\u4e8e\u63d0\u4ea4\u7528\u6237\u4fe1\u606f\u7684\u8868\u5355\uff1a<\/p>\n

        <!<\/span>DOCTYPE<\/span> html<\/span> PUBLIC<\/span> \"-\/\/W3C\/\/DTD HTML 4.01 Transitional\/\/EN\"<\/span> \"https:\/\/www.w3.org\/TR\/html4\/loose.dtd\"<\/span>><\/span><\/span>\r\n<<\/span>html<\/span>><\/span><\/span>\r\n<<\/span>head<\/span>><\/span><\/span>\r\n<<\/span>meta<\/span> http-equiv<\/span>=<\/span>\"<\/span>Content-Type\"<\/span><\/span> content<\/span>=<\/span>\"<\/span>text\/html; charset=UTF-8\"<\/span><\/span>><\/span><\/span>\r\n<<\/span>title<\/span>><\/span><\/span>\u767b\u5f55\u9875\u9762<\/<\/span>title<\/span>><\/span><\/span>\r\n<\/<\/span>head<\/span>><\/span><\/span>\r\n<<\/span>body<\/span>><\/span><\/span>\r\n<<\/span>form<\/span> action<\/span>=<\/span>\"<\/span>home\"<\/span><\/span> method<\/span>=<\/span>\"<\/span>post\"<\/span><\/span>><\/span><\/span>\r\n<<\/span>input<\/span> type<\/span>=<\/span>\"<\/span>text\"<\/span><\/span> name<\/span>=<\/span>\"<\/span>userName\"<\/span><\/span>><\/span><\/span><<\/span>br<\/span>\/><\/span><\/span>\r\n<<\/span>input<\/span> type<\/span>=<\/span>\"<\/span>submit\"<\/span><\/span> value<\/span>=<\/span>\"<\/span>\u767b\u5f55\"<\/span><\/span>><\/span><\/span>\r\n<\/<\/span>form<\/span>><\/span><\/span>\r\n<\/<\/span>body<\/span>><\/span><\/span>\r\n<\/<\/span>html<\/span>><\/span><\/span>\r\n<\/code><\/pre>\n
          \n
        • \u8bf7\u6c42\u65b9\u6cd5\u4e3aPOST\u3002<\/li>\n
        • \u8868\u5355\u7684action<\/code>\u5c5e\u6027\u6307\u5411home<\/code>\uff0c\u5373\u5b8c\u6574\u7684URL\u4e3a\uff1alocalhost:8080\/SpringMVCExample\/home<\/code>\u3002<\/li>\n
        • userName<\/code>\u8f93\u5165\u6846\u7684\u7c7b\u578b\u4e3a\u6587\u672c\u3002<\/li>\n<\/ul>\n
          \u57fa\u4e8e\u4ee5\u4e0a\u4fe1\u606f\uff0c\u60a8\u53ef\u4ee5\u6784\u9020\u4e00\u4e2aPOST\u8bf7\u6c42\u5230\uff1a<\/p>\n
          localhost:8080\/SpringMVCExample\/home?userName=Pankaj<\/mark>\r\n<\/code><\/pre>\n
          \u8fd9\u5c06\u4f5c\u4e3a\u6211\u4eecHttpURLConnection<\/code>\u793a\u4f8b\u7684\u57fa\u7840\u3002<\/p>\n
          HttpURLConnection\u793a\u4f8b<\/h2>\n
          \u4ee5\u4e0b\u662f\u4f7f\u7528HttpURLConnection\u7c7b\u53d1\u9001Java HTTP\u8bf7\u6c42\u7684\u6b65\u9aa4\uff1a<\/p>\n
            \n
          1. \n
              \u4eceGET\u6216POST URL\u5b57\u7b26\u4e32\u4e2d\u521b\u5efaURL\u5bf9\u8c61\u3002<\/ol>\n<\/li>\n<\/ol>\n
               <\/p>\n
                \n
              1. \n
                  \u5728URL\u5bf9\u8c61\u4e0a\u8c03\u7528openConnection()\u65b9\u6cd5\uff0c\u8fd4\u56de\u4e00\u4e2aHttpURLConnection\u5b9e\u4f8b\u3002<\/ol>\n<\/li>\n<\/ol>\n
                   <\/p>\n
                    \n
                  1. \n
                      \u5728HttpURLConnection\u5b9e\u4f8b\u4e2d\u8bbe\u7f6e\u8bf7\u6c42\u65b9\u6cd5\uff08\u9ed8\u8ba4\u503c\u4e3aGET\uff09\u3002<\/ol>\n<\/li>\n<\/ol>\n
                       <\/p>\n
                        \n
                      1. \n
                          \u5728HttpURLConnection\u5b9e\u4f8b\u4e0a\u8c03\u7528setRequestProperty()\u65b9\u6cd5\uff0c\u8bbe\u7f6e\u8bf7\u6c42\u5934\u7684\u503c\uff08\u5982”User-Agent”\u3001”Accept-Language”\u7b49\uff09\u3002<\/ol>\n<\/li>\n<\/ol>\n
                           <\/p>\n
                            \n
                          1. \n
                              \u6211\u4eec\u53ef\u4ee5\u8c03\u7528getResponseCode()\u6765\u83b7\u53d6\u54cd\u5e94\u7684HTTP\u4ee3\u7801\u3002\u8fd9\u6837\uff0c\u6211\u4eec\u5c31\u77e5\u9053\u8bf7\u6c42\u662f\u5426\u88ab\u6210\u529f\u5904\u7406\uff0c\u6216\u8005\u662f\u5426\u6709\u4efb\u4f55HTTP\u9519\u8bef\u6d88\u606f\u88ab\u629b\u51fa\u3002<\/ol>\n<\/li>\n<\/ol>\n
                               <\/p>\n
                                \n
                              1. \n
                                  \u5bf9\u4e8eGET\u8bf7\u6c42\uff0c\u4f7f\u7528Reader\u548cInputStream\u6765\u8bfb\u53d6\u54cd\u5e94\u5e76\u76f8\u5e94\u5904\u7406\u3002<\/ol>\n<\/li>\n<\/ol>\n
                                   <\/p>\n
                                    \u5bf9\u4e8ePOST\u8bf7\u6c42\uff0c\u5728\u4ee3\u7801\u5904\u7406\u54cd\u5e94\u4e4b\u524d\uff0c\u9700\u8981\u4eceHttpURLConnection\u5b9e\u4f8b\u4e2d\u83b7\u53d6OutputStream\uff0c\u5e76\u5c06POST\u53c2\u6570\u5199\u5165\u5176\u4e2d\u3002<\/ol>\n
                                    \u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528HttpURLConnection\u53d1\u9001Java GET\u548cPOST\u8bf7\u6c42\u7684\u793a\u4f8b\u7a0b\u5e8f\u3002<\/p>\n
                                    HttpURLConnectionExample.java\u7684\u793a\u4f8b<\/p>\n
                                    package<\/span> com.<\/span>scdev.<\/span>utils<\/span>;<\/span>\r\n\r\nimport<\/span> java.<\/span>io.<\/span><\/span>BufferedReader<\/span><\/span>;<\/span>\r\nimport<\/span> java.<\/span>io.<\/span><\/span>IOException<\/span><\/span>;<\/span>\r\nimport<\/span> java.<\/span>io.<\/span><\/span>InputStreamReader<\/span><\/span>;<\/span>\r\nimport<\/span> java.<\/span>io.<\/span><\/span>OutputStream<\/span><\/span>;<\/span>\r\nimport<\/span> java.<\/span>net.<\/span><\/span>HttpURLConnection<\/span><\/span>;<\/span>\r\nimport<\/span> java.<\/span>net.<\/span><\/span>URL<\/span><\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> HttpURLConnectionExample<\/span> {<\/span>\r\n\r\n\tprivate<\/span> static<\/span> final<\/span> String<\/span> USER_AGENT<\/span> =<\/span> \"Mozilla\/5.0\"<\/span>;<\/span>\r\n\r\n\tprivate<\/span> static<\/span> final<\/span> String<\/span> GET_URL<\/span> =<\/span> \"https:\/\/localhost:9090\/SpringMVCExample\"<\/span>;<\/span>\r\n\r\n\tprivate<\/span> static<\/span> final<\/span> String<\/span> POST_URL<\/span> =<\/span> \"https:\/\/localhost:9090\/SpringMVCExample\/home\"<\/span>;<\/span>\r\n\r\n\tprivate<\/span> static<\/span> final<\/span> String<\/span> POST_PARAMS<\/span> =<\/span> \"userName=Pankaj\"<\/span>;<\/span>\r\n\r\n\tpublic<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[<\/span>]<\/span> args)<\/span> throws<\/span> IOException<\/span> {<\/span>\r\n\t\tsendGET<\/span>(<\/span>)<\/span>;<\/span>\r\n\t\tSystem<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>\"GET DONE\"<\/span>)<\/span>;<\/span>\r\n\t\tsendPOST<\/span>(<\/span>)<\/span>;<\/span>\r\n\t\tSystem<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>\"POST DONE\"<\/span>)<\/span>;<\/span>\r\n\t}<\/span>\r\n\r\n\tprivate<\/span> static<\/span> void<\/span> sendGET<\/span>(<\/span>)<\/span> throws<\/span> IOException<\/span> {<\/span>\r\n\t\tURL<\/span> obj =<\/span> new<\/span> URL<\/span>(<\/span>GET_URL<\/span>)<\/span>;<\/span>\r\n\t\tHttpURLConnection<\/span> con =<\/span> (<\/span>HttpURLConnection<\/span>)<\/span> obj.<\/span>openConnection<\/span>(<\/span>)<\/span>;<\/span>\r\n\t\tcon.<\/span>setRequestMethod<\/span>(<\/span>\"GET\"<\/span>)<\/span>;<\/span>\r\n\t\tcon.<\/span>setRequestProperty<\/span>(<\/span>\"User-Agent\"<\/span>,<\/span> USER_AGENT<\/span>)<\/span>;<\/span>\r\n\t\tint<\/span> responseCode =<\/span> con.<\/span>getResponseCode<\/span>(<\/span>)<\/span>;<\/span>\r\n\t\tSystem<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>\"GET Response Code :: \"<\/span> +<\/span> responseCode)<\/span>;<\/span>\r\n\t\tif<\/span> (<\/span>responseCode ==<\/span> HttpURLConnection<\/span>.<\/span>HTTP_OK<\/span>)<\/span> {<\/span> \/\/ success<\/span>\r\n\t\t\tBufferedReader<\/span> in =<\/span> new<\/span> BufferedReader<\/span>(<\/span>new<\/span> InputStreamReader<\/span>(<\/span>con.<\/span>getInputStream<\/span>(<\/span>)<\/span>)<\/span>)<\/span>;<\/span>\r\n\t\t\tString<\/span> inputLine;<\/span>\r\n\t\t\tStringBuffer<\/span> response =<\/span> new<\/span> StringBuffer<\/span>(<\/span>)<\/span>;<\/span>\r\n\r\n\t\t\twhile<\/span> (<\/span>(<\/span>inputLine =<\/span> in.<\/span>readLine<\/span>(<\/span>)<\/span>)<\/span> !=<\/span> null<\/span>)<\/span> {<\/span>\r\n\t\t\t\tresponse.<\/span>append<\/span>(<\/span>inputLine)<\/span>;<\/span>\r\n\t\t\t}<\/span>\r\n\t\t\tin.<\/span>close<\/span>(<\/span>)<\/span>;<\/span>\r\n\r\n\t\t\t\/\/ print result<\/span>\r\n\t\t\tSystem<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>response.<\/span>toString<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\r\n\t\t}<\/span> else<\/span> {<\/span>\r\n\t\t\tSystem<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>\"GET request did not work.\"<\/span>)<\/span>;<\/span>\r\n\t\t}<\/span>\r\n\r\n\t}<\/span>\r\n\r\n\tprivate<\/span> static<\/span> void<\/span> sendPOST<\/span>(<\/span>)<\/span> throws<\/span> IOException<\/span> {<\/span>\r\n\t\tURL<\/span> obj =<\/span> new<\/span> URL<\/span>(<\/span>POST_URL<\/span>)<\/span>;<\/span>\r\n\t\tHttpURLConnection<\/span> con =<\/span> (<\/span>HttpURLConnection<\/span>)<\/span> obj.<\/span>openConnection<\/span>(<\/span>)<\/span>;<\/span>\r\n\t\tcon.<\/span>setRequestMethod<\/span>(<\/span>\"POST\"<\/span>)<\/span>;<\/span>\r\n\t\tcon.<\/span>setRequestProperty<\/span>(<\/span>\"User-Agent\"<\/span>,<\/span> USER_AGENT<\/span>)<\/span>;<\/span>\r\n\r\n\t\t\/\/ For POST only - START<\/span>\r\n\t\tcon.<\/span>setDoOutput<\/span>(<\/span>true<\/span>)<\/span>;<\/span>\r\n\t\tOutputStream<\/span> os =<\/span> con.<\/span>getOutputStream<\/span>(<\/span>)<\/span>;<\/span>\r\n\t\tos.<\/span>write<\/span>(<\/span>POST_PARAMS<\/span>.<\/span>getBytes<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\r\n\t\tos.<\/span>flush<\/span>(<\/span>)<\/span>;<\/span>\r\n\t\tos.<\/span>close<\/span>(<\/span>)<\/span>;<\/span>\r\n\t\t\/\/ For POST only - END<\/span>\r\n\r\n\t\tint<\/span> responseCode =<\/span> con.<\/span>getResponseCode<\/span>(<\/span>)<\/span>;<\/span>\r\n\t\tSystem<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>\"POST Response Code :: \"<\/span> +<\/span> responseCode)<\/span>;<\/span>\r\n\r\n\t\tif<\/span> (<\/span>responseCode ==<\/span> HttpURLConnection<\/span>.<\/span>HTTP_OK<\/span>)<\/span> {<\/span> \/\/success<\/span>\r\n\t\t\tBufferedReader<\/span> in =<\/span> new<\/span> BufferedReader<\/span>(<\/span>new<\/span> InputStreamReader<\/span>(<\/span>con.<\/span>getInputStream<\/span>(<\/span>)<\/span>)<\/span>)<\/span>;<\/span>\r\n\t\t\tString<\/span> inputLine;<\/span>\r\n\t\t\tStringBuffer<\/span> response =<\/span> new<\/span> StringBuffer<\/span>(<\/span>)<\/span>;<\/span>\r\n\r\n\t\t\twhile<\/span> (<\/span>(<\/span>inputLine =<\/span> in.<\/span>readLine<\/span>(<\/span>)<\/span>)<\/span> !=<\/span> null<\/span>)<\/span> {<\/span>\r\n\t\t\t\tresponse.<\/span>append<\/span>(<\/span>inputLine)<\/span>;<\/span>\r\n\t\t\t}<\/span>\r\n\t\t\tin.<\/span>close<\/span>(<\/span>)<\/span>;<\/span>\r\n\r\n\t\t\t\/\/ print result<\/span>\r\n\t\t\tSystem<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>response.<\/span>toString<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\r\n\t\t}<\/span> else<\/span> {<\/span>\r\n\t\t\tSystem<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>\"POST request did not work.\"<\/span>)<\/span>;<\/span>\r\n\t\t}<\/span>\r\n\t}<\/span>\r\n\r\n}<\/span>\r\n<\/code><\/pre>\n
                                    \u7f16\u8bd1\u5e76\u8fd0\u884c\u4ee3\u7801\uff0c\u5c06\u4ea7\u751f\u4ee5\u4e0b\u8f93\u51fa\uff1a<\/p>\n
                                    <\/code><\/pre>\n
                                    Output<\/p>\n
                                    \u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u4f7f\u7528Java HttpURLConnection\u8fdb\u884cHTTP GET\u548cPOST\u8bf7\u6c42\u300b\u7684\u7b2c3\u90e8\u5206\uff08\u51713\u90e8\u5206\uff09\u3002<\/p>\n
                                    \r\nGET \u54cd\u5e94\u4ee3\u7801 :: 200\r\n<html><head>\r\n <title>\u4e3b\u9875<\/title><\/head><body><h1> \u4f60\u597d\u4e16\u754c\uff01 <\/h1><P> \u670d\u52a1\u5668\u65f6\u95f4\u662f 2015\u5e743\u67086\u65e5 \u665a\u4e0a9:31:04 IST\u3002 <\/P><\/body><\/html>\r\nGET \u5b8c\u6210\r\nPOST \u54cd\u5e94\u4ee3\u7801 :: 200\r\n<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.01 Transitional\/\/EN\" \"https:\/\/www.w3.org\/TR\/html4\/loose.dtd\"><html><head><meta http-equiv=\"Content-Type\" content=\"text\/html; charset=UTF-8\"><title>\u7528\u6237\u4e3b\u9875<\/title><\/head><body><h3>\u4f60\u597d Pankaj<\/h3><\/body><\/html>\r\nPOST \u5b8c\u6210\r\n<\/code><\/pre>\n
                                    \u5c06\u6b64\u8f93\u51fa\u4e0e\u6d4f\u89c8\u5668\u7684HTTP\u54cd\u5e94\u8fdb\u884c\u6bd4\u8f83\u3002<\/p>\n
                                    \u5982\u679c\u4f60\u9700\u8981\u901a\u8fc7HTTPS\u534f\u8bae\u53d1\u9001GET\u548cPOST\u8bf7\u6c42\uff0c\u90a3\u4e48\u4f60\u9700\u8981\u4f7f\u7528javax.net.ssl.HttpsURLConnection<\/code>\u800c\u4e0d\u662fjava.net.HttpURLConnection<\/code>\u3002HttpsURLConnection<\/code>\u4f1a\u5904\u7406SSL\u63e1\u624b\u548c\u52a0\u5bc6\u3002<\/p>\n
                                    \u7ed3\u8bba<\/h2>\n
                                    \u5728\u672c\u6587\u4e2d\uff0c\u60a8\u5b66\u4e60\u4e86\u5982\u4f55\u5728Java\u7a0b\u5e8f\u4e2d\u4f7f\u7528HttpURLConnection<\/code>\u53d1\u9001GET\u548cPOST\u8bf7\u6c42\uff0c\u5e76\u6253\u5370\u51fa\u54cd\u5e94\u3002<\/p>\n
                                    \u7ee7\u7eed\u901a\u8fc7\u66f4\u591a\u7684Java\u6559\u7a0b\u6765\u63d0\u9ad8\u4f60\u7684\u5b66\u4e60\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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