![\"menu-r.4af5f7ec.gif\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418232610-6802df92b3c00.gif\")
<\/p>\n \u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90，\u70b9\u51fb\u83b7\u53d6 <\/p>\n
\u7b80\u4ecb：Java\u5b9e\u73b0\u7684\u4ee3\u7406\u670d\u52a1\u5668\u4f5c\u4e3a\u7f51\u7edc\u901a\u4fe1\u4e2d\u4ecb，\u652f\u6301SOCKS4\u548cSOCKS5\u534f\u8bae，\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u8eab\u4efd\u9690\u85cf\u548c\u589e\u5f3a\u5b89\u5168\u6027\u3002SOCKS4\u4ec5\u652f\u6301TCP\u8fde\u63a5，\u800cSOCKS5\u5728SOCKS4\u57fa\u7840\u4e0a\u589e\u52a0\u4e86\u7528\u6237\u8ba4\u8bc1\u548cUDP\u652f\u6301\u3002\u672c\u9879\u76ee\u8be6\u7ec6\u4ecb\u7ecd\u4e86\u4ee3\u7406\u670d\u52a1\u5668\u7684\u5b9e\u73b0，\u5305\u62ec\u6838\u5fc3\u6982\u5ff5\u5982\u5957\u63a5\u5b57\u7f16\u7a0b\u3001\u5b57\u8282\u6d41\u5904\u7406\u3001\u534f\u8bae\u89e3\u6790\u3001\u9519\u8bef\u5904\u7406\u3001\u5e76\u53d1\u5904\u7406\u3001\u5b89\u5168\u6027\u589e\u5f3a\u53ca\u65e5\u5fd7\u8bb0\u5f55\u3002 ![\"\u57fa\u4e8eJava\u5b9e\u73b0\u7684\u4ee3\u7406\u670d\u52a1\u5668\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418232610-6802df92c8dd2.png\")
<\/p>\n
\u4ee3\u7406\u670d\u52a1\u5668（Proxy Server）\u662f\u4e00\u79cd\u7f51\u7edc\u670d\u52a1，\u5b83\u4f5c\u4e3a\u5ba2\u6237\u7aef\u548c\u4e92\u8054\u7f51\u4e4b\u95f4\u7684\u4e2d\u4ecb，\u5e2e\u52a9\u7528\u6237\u5728\u8bbf\u95ee\u5916\u90e8\u7f51\u7edc\u65f6\u5b9e\u73b0\u8bf7\u6c42\u8f6c\u53d1\u3001\u6d41\u91cf\u63a7\u5236\u3001\u6570\u636e\u7f13\u5b58\u3001\u5b89\u5168\u7b56\u7565\u7b49\u529f\u80fd\u3002\u4ee3\u7406\u53ef\u4ee5\u5206\u4e3a\u900f\u660e\u4ee3\u7406\u3001\u533f\u540d\u4ee3\u7406\u548c\u6df7\u6dc6\u4ee3\u7406\u7b49\u591a\u79cd\u7c7b\u578b，\u6bcf\u79cd\u7c7b\u578b\u5177\u6709\u4e0d\u540c\u7684\u533f\u540d\u5ea6\u548c\u5e94\u7528\u573a\u666f\u3002 <\/p>\n
\u4ee3\u7406\u670d\u52a1\u5668\u7684\u6838\u5fc3\u4f5c\u7528\u5305\u62ec： – \u63d0\u4f9b\u8bf7\u6c42\u8fc7\u6ee4，\u53ef\u4ee5\u9650\u5236\u7528\u6237\u5bf9\u67d0\u4e9b\u4e92\u8054\u7f51\u8d44\u6e90\u7684\u8bbf\u95ee，\u589e\u5f3a\u7f51\u7edc\u5b89\u5168\u3002 – \u8fdb\u884c\u5185\u5bb9\u7f13\u5b58，\u52a0\u5feb\u7528\u6237\u8bbf\u95ee\u901f\u5ea6\u5e76\u51cf\u5c11\u5e26\u5bbd\u6d88\u8017\u3002 – \u5b9e\u73b0\u5730\u5740\u9690\u85cf，\u7528\u6237\u901a\u8fc7\u4ee3\u7406\u8bbf\u95ee\u4e92\u8054\u7f51\u65f6，\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u9690\u85cf\u771f\u5b9e\u7684IP\u5730\u5740\u3002 – \u7528\u4e8e\u7f51\u7edc\u5ba1\u67e5，\u67d0\u4e9b\u56fd\u5bb6\u6216\u7ec4\u7ec7\u53ef\u80fd\u4f1a\u4f7f\u7528\u4ee3\u7406\u670d\u52a1\u5668\u5bf9\u7f51\u7edc\u6d41\u91cf\u8fdb\u884c\u76d1\u63a7\u548c\u5ba1\u67e5\u3002 <\/p>\n
\u4ee3\u7406\u670d\u52a1\u5668\u7684\u4f7f\u7528\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u7f51\u7edc\u8bbf\u95ee\u7684\u6548\u7387，\u8fd8\u589e\u5f3a\u4e86\u7f51\u7edc\u7684\u9690\u79c1\u6027\u548c\u5b89\u5168\u6027\u3002\u5728\u914d\u7f6e\u548c\u90e8\u7f72\u4ee3\u7406\u670d\u52a1\u5668\u65f6，\u9700\u8981\u8003\u8651\u591a\u65b9\u9762\u7684\u6280\u672f\u7ec6\u8282\u548c\u4e1a\u52a1\u9700\u6c42，\u4ee5\u786e\u4fdd\u5176\u7a33\u5b9a\u548c\u9ad8\u6548\u5730\u5de5\u4f5c\u3002\u63a5\u4e0b\u6765\u7684\u7ae0\u8282\u4e2d，\u6211\u4eec\u5c06\u6df1\u5165\u4e86\u89e3\u4ee3\u7406\u670d\u52a1\u5668\u7684\u534f\u8bae\u3001\u7f16\u7a0b\u5b9e\u73b0\u4ee5\u53ca\u4f18\u5316\u7b56\u7565\u3002 <\/p>\n
SOCKS4\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4ee3\u7406\u534f\u8bae，\u5141\u8bb8\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u5efa\u7acbTCP\u8fde\u63a5\u3002SOCKS4\u4ee3\u7406\u7684\u4e3b\u8981\u5de5\u4f5c\u539f\u7406\u662f\u5ba2\u6237\u9996\u5148\u4e0eSOCKS4\u670d\u52a1\u5668\u5efa\u7acb\u4e00\u4e2aTCP\u8fde\u63a5，\u7136\u540eSOCKS4\u670d\u52a1\u5668\u4e0e\u76ee\u6807\u670d\u52a1\u5668\u5efa\u7acb\u8fde\u63a5\u3002\u4e00\u65e6\u8fde\u63a5\u5efa\u7acb，\u6570\u636e\u5c31\u53ef\u4ee5\u901a\u8fc7SOCKS4\u670d\u52a1\u5668\u8fdb\u884c\u4f20\u8f93\u3002SOCKS4\u4e0d\u63d0\u4f9b\u8eab\u4efd\u9a8c\u8bc1\u673a\u5236，\u4e14\u4ec5\u652f\u6301TCP\u534f\u8bae，\u4e0d\u652f\u6301UDP\u534f\u8bae\u3002 <\/p>\n
\u4e00\u4e2a\u5178\u578b\u7684SOCKS4\u901a\u4fe1\u8fc7\u7a0b\u5982\u4e0b： 1. \u5ba2\u6237\u7aef\u9996\u5148\u5efa\u7acb\u4e00\u4e2a\u5230SOCKS4\u670d\u52a1\u5668\u7684\u8fde\u63a5\u3002 2. \u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u4e2aSOCKS4\u8bf7\u6c42，\u5305\u62ec\u76ee\u6807\u4e3b\u673a\u7684IP\u5730\u5740\u3001\u7aef\u53e3\u53f7\u4ee5\u53ca\u4e00\u4e2a\u6807\u8bc6\u3002 3. SOCKS4\u670d\u52a1\u5668\u63a5\u53d7\u8bf7\u6c42\u540e，\u5c1d\u8bd5\u4e0e\u76ee\u6807\u4e3b\u673a\u5efa\u7acb\u4e00\u4e2a\u65b0\u7684\u8fde\u63a5\u3002 4. \u5982\u679c\u8fde\u63a5\u6210\u529f，SOCKS4\u670d\u52a1\u5668\u5c06\u5f00\u59cb\u5728\u4e24\u4e2a\u8fde\u63a5\u4e4b\u95f4\u590d\u5236\u6570\u636e\u3002 5. \u5ba2\u6237\u7aef\u548c\u76ee\u6807\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u6240\u6709\u6570\u636e\u4ea4\u6362\u90fd\u901a\u8fc7SOCKS4\u670d\u52a1\u5668\u8f6c\u53d1\u3002 <\/p>\n
SOCKS4\u534f\u8bae\u9002\u5408\u4ee5\u4e0b\u5e94\u7528\u573a\u666f： – \u7b80\u5355\u7684\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236：\u5728\u67d0\u4e9b\u7f51\u7edc\u73af\u5883\u4e2d，\u7ba1\u7406\u5458\u53ef\u80fd\u4ec5\u9700\u8981\u63a7\u5236\u8bbf\u95ee\u7684\u6d41\u91cf，\u800c\u4e0d\u9700\u8981\u590d\u6742\u7684\u8ba4\u8bc1\u8fc7\u7a0b\u3002 – \u4e0e\u652f\u6301SOCKS4\u7684\u65e7\u8f6f\u4ef6\u517c\u5bb9：\u4e00\u4e9b\u65e7\u8f6f\u4ef6\u53ef\u80fd\u53ea\u652f\u6301SOCKS4\u534f\u8bae，\u56e0\u6b64\u5728\u8fd9\u4e9b\u60c5\u51b5\u4e0b\u4f7f\u7528SOCKS4\u4ee3\u7406\u670d\u52a1\u5668\u662f\u5fc5\u8981\u7684\u3002 <\/p>\n
\u7531\u4e8eSOCKS4\u4e0d\u652f\u6301UDP\u548c\u7528\u6237\u8eab\u4efd\u9a8c\u8bc1，\u56e0\u6b64\u5728\u9700\u8981\u8fd9\u4e9b\u529f\u80fd\u7684\u573a\u666f\u4e0b，SOCKS4\u7684\u9002\u7528\u6027\u5c06\u5927\u5927\u964d\u4f4e\u3002 <\/p>\n
SOCKS5\u662fSOCKS4\u534f\u8bae\u7684\u5347\u7ea7\u7248\u672c，\u5b83\u5728\u539f\u6709\u7684\u57fa\u7840\u4e0a\u589e\u52a0\u4e86\u5bf9UDP\u534f\u8bae\u7684\u652f\u6301\u548c\u66f4\u5f3a\u5927\u7684\u8ba4\u8bc1\u673a\u5236\u3002SOCKS5\u652f\u6301\u591a\u79cd\u7c7b\u578b\u7684\u7528\u6237\u8ba4\u8bc1，\u4f8b\u5982\u7528\u6237\u540d\u548c\u5bc6\u7801\u3001GSSAPI\u548cIANA\u6388\u6743\u7b49\u3002\u6b64\u5916，SOCKS5\u8fd8\u652f\u6301IPv6\u5730\u5740\u89e3\u6790\u548c\u57df\u540d\u89e3\u6790，\u4f7f\u5f97\u5ba2\u6237\u7aef\u53ef\u4ee5\u4f7f\u7528\u57df\u540d\u800c\u4e0d\u662fIP\u5730\u5740\u6765\u6307\u5b9a\u76ee\u6807\u670d\u52a1\u5668\u3002 <\/p>\n
SOCKS5\u534f\u8bae\u4e2d\u7684\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e0eSOCKS4\u7c7b\u4f3c，\u4f46\u589e\u52a0\u4e86\u8ba4\u8bc1\u6b65\u9aa4： 1. \u5ba2\u6237\u7aef\u5efa\u7acb\u5230SOCKS5\u670d\u52a1\u5668\u7684\u8fde\u63a5\u3002 2. \u5ba2\u6237\u7aef\u53d1\u8d77\u8ba4\u8bc1\u8bf7\u6c42，\u9009\u62e9\u4e00\u4e2a\u6216\u591a\u4e2a\u652f\u6301\u7684\u8ba4\u8bc1\u65b9\u6cd5\u3002 3. SOCKS5\u670d\u52a1\u5668\u54cd\u5e94，\u9009\u62e9\u4e00\u4e2a\u53cc\u65b9\u90fd\u652f\u6301\u7684\u8ba4\u8bc1\u65b9\u6cd5，\u5e76\u8fdb\u884c\u8ba4\u8bc1\u8fc7\u7a0b\u3002 4. \u8ba4\u8bc1\u6210\u529f\u540e，\u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u4e2a\u8fde\u63a5\u8bf7\u6c42，\u5305\u62ec\u76ee\u6807\u4e3b\u673a\u7684IP\u5730\u5740\u6216\u57df\u540d\u3001\u7aef\u53e3\u53f7\u7b49\u4fe1\u606f\u3002 5. SOCKS5\u670d\u52a1\u5668\u5efa\u7acb\u4e0e\u76ee\u6807\u4e3b\u673a\u7684\u8fde\u63a5，\u5e76\u5f00\u59cb\u6570\u636e\u4f20\u8f93\u3002 <\/p>\n
\u7531\u4e8eSOCKS5\u63d0\u4f9b\u4e86\u66f4\u5168\u9762\u7684\u529f\u80fd，\u5176\u5411\u4e0b\u517c\u5bb9SOCKS4\u534f\u8bae，\u4f7f\u5f97SOCKS5\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u5904\u7406SOCKS4\u534f\u8bae\u7684\u8bf7\u6c42\u3002\u8fd9\u610f\u5473\u7740\u65e7\u8f6f\u4ef6\u53ef\u4ee5\u65e0\u7f1d\u8fc1\u79fb\u5230SOCKS5\u4ee3\u7406\u670d\u52a1\u5668，\u800c\u4e0d\u4f1a\u4e22\u5931\u539f\u6709\u7684\u7f51\u7edc\u8bbf\u95ee\u529f\u80fd\u3002 <\/p>\n
\u4f46\u662f，SOCKS5\u534f\u8bae\u7684\u8ba4\u8bc1\u673a\u5236\u4f1a\u5f15\u5165\u989d\u5916\u7684\u5f00\u9500，\u8fd9\u53ef\u80fd\u4f1a\u5f71\u54cd\u5230\u4ee3\u7406\u670d\u52a1\u5668\u7684\u6027\u80fd，\u7279\u522b\u662f\u5728\u9ad8\u5e76\u53d1\u7684\u60c5\u51b5\u4e0b\u3002\u56e0\u6b64，\u7ba1\u7406\u5458\u9700\u8981\u6839\u636e\u5b9e\u9645\u9700\u6c42\u548c\u5b89\u5168\u8981\u6c42\u6765\u9009\u62e9\u662f\u5426\u542f\u7528SOCKS5\u7684\u8ba4\u8bc1\u529f\u80fd\u3002 <\/p>\n
| \u7279\u6027 | SOCKS4 | SOCKS5 | |————-|———|————| | \u652f\u6301\u7684TCP\/UDP | TCP | TCP, UDP | | \u7528\u6237\u8ba4\u8bc1 | \u4e0d\u652f\u6301 | \u652f\u6301 | | \u8ba4\u8bc1\u7c7b\u578b | – | \u7528\u6237\u540d\/\u5bc6\u7801, GSSAPI, IANA\u7b49 | | \u5730\u5740\u89e3\u6790 | IP\u5730\u5740 | IP\u5730\u5740, \u57df\u540d | | IPv6\u652f\u6301 | \u4e0d\u652f\u6301 | \u652f\u6301 | <\/p>\n
Socket socket = new Socket("SOCKS5\u670d\u52a1\u5668\u5730\u5740", \u7aef\u53e3\u53f7);
\nOutputStream os = socket.getOutputStream();
\nInputStream is = socket.getInputStream();<\/p>\n
\/\/ \u6784\u9020SOCKS5\u8bf7\u6c42
\nbyte[] request = new byte[256];
\nrequest[0] = 5; \/\/ SOCKS5\u7248\u672c
\nrequest[1] = 1; \/\/ \u8ba4\u8bc1\u65b9\u6cd5\u6570\u91cf
\nrequest[2] = 0; \/\/ \u65e0\u8ba4\u8bc1\u65b9\u6cd5
\n\/\/ \u5176\u4f59\u90e8\u5206\u586b\u5145\u4e3a0<\/p>\n
\/\/ \u53d1\u9001\u8bf7\u6c42
\nos.write(request);
\nos.flush();<\/p>\n
\/\/ \u8bfb\u53d6\u54cd\u5e94
\nbyte[] response = new byte[256];
\nint read = is.read(response);
\n\/\/ \u6839\u636e\u54cd\u5e94\u5224\u65ad\u8ba4\u8bc1\u662f\u5426\u6210\u529f，\u5e76\u8fdb\u884c\u4e0b\u4e00\u6b65\u8fde\u63a5\u64cd\u4f5c…<\/p>\n
\u4ee5\u4e0a\u4ee3\u7801\u5757\u5c55\u793a\u4e86\u5982\u4f55\u5728Java\u4e2d\u521b\u5efa\u4e00\u4e2aSOCKS5\u4ee3\u7406\u670d\u52a1\u5668\u8fde\u63a5\u7684\u8bf7\u6c42\u3002\u4ee3\u7801\u903b\u8f91\u5305\u62ec\u53d1\u9001SOCKS5\u7248\u672c\u548c\u8ba4\u8bc1\u65b9\u6cd5\u7684\u8bf7\u6c42，\u5e76\u8bfb\u53d6\u670d\u52a1\u5668\u7684\u54cd\u5e94\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f，\u8fd9\u91cc\u7701\u7565\u4e86\u8ba4\u8bc1\u8fc7\u7a0b\u548c\u8fde\u63a5\u5efa\u7acb\u7684\u5177\u4f53\u5b9e\u73b0\u7ec6\u8282，\u4ec5\u63d0\u4f9b\u4e86\u4e00\u4e2a\u6846\u67b6\u7ea7\u522b\u7684\u793a\u4f8b\u3002 <\/p>\n
sequenceDiagram
\n participant C as Client
\n participant S as SOCKS5 Server<\/p>\n
C ->> S: Connect and send auth request
\n S ->> C: Choose auth method (e.g., no auth)
\n C ->> S: Send connection request
\n S –>> C: Connect to target or error<\/p>\n
\u8be5\u6d41\u7a0b\u56fe\u63cf\u8ff0\u4e86SOCKS5\u534f\u8bae\u7684\u8ba4\u8bc1\u548c\u8fde\u63a5\u8bf7\u6c42\u8fc7\u7a0b\u3002\u9996\u5148\u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u4e2a\u8ba4\u8bc1\u8bf7\u6c42，\u7136\u540e\u670d\u52a1\u5668\u54cd\u5e94\u9009\u62e9\u7684\u8ba4\u8bc1\u65b9\u6cd5，\u63a5\u7740\u5ba2\u6237\u7aef\u53d1\u9001\u8fde\u63a5\u8bf7\u6c42，\u670d\u52a1\u5668\u6700\u7ec8\u54cd\u5e94\u662f\u5426\u8fde\u63a5\u6210\u529f\u3002 <\/p>\n
\u7efc\u4e0a\u6240\u8ff0，SOCKS5\u534f\u8bae\u5728\u529f\u80fd\u4e0a\u76f8\u6bd4SOCKS4\u6709\u4e86\u663e\u8457\u7684\u589e\u5f3a，\u540c\u65f6\u4e5f\u8003\u8651\u4e86\u5411\u540e\u517c\u5bb9\u6027，\u4f7f\u5176\u5728\u4e0d\u540c\u73af\u5883\u4e0b\u7684\u5e94\u7528\u66f4\u4e3a\u7075\u6d3b\u3002\u4f46\u5728\u5b9e\u9645\u90e8\u7f72\u65f6，\u5e94\u7efc\u5408\u8003\u8651\u6027\u80fd\u548c\u5b89\u5168\u9700\u6c42，\u9009\u62e9\u5408\u9002\u7684\u8ba4\u8bc1\u548c\u529f\u80fd\u5f00\u542f\u7b56\u7565\u3002 <\/p>\n
Java\u5957\u63a5\u5b57\u7f16\u7a0b\u662f\u4e00\u4e2a\u5e7f\u6cdb\u7684\u8bdd\u9898，\u5b83\u662f\u6784\u5efa\u7f51\u7edc\u5e94\u7528\u7a0b\u5e8f\u7684\u57fa\u7840\u3002\u5728\u672c\u7ae0\u8282\u4e2d，\u6211\u4eec\u5c06\u4f1a\u6df1\u5165\u63a2\u8ba8Java\u4e2d\u7684\u5957\u63a5\u5b57\u7f16\u7a0b\u539f\u7406，\u4ee5\u53ca\u5982\u4f55\u5b9e\u8df5\u8fd9\u4e9b\u539f\u7406\u6765\u5f00\u53d1\u9ad8\u6548\u7684\u7f51\u7edc\u901a\u4fe1\u7cfb\u7edf\u3002 <\/p>\n
\u5957\u63a5\u5b57（Socket）\u662f\u4e00\u4e2a\u7f51\u7edc\u901a\u4fe1\u7684\u7aef\u70b9，\u5b83\u63d0\u4f9b\u4e86\u5e94\u7528\u7a0b\u5e8f\u4e4b\u95f4\u8fdb\u884c\u7f51\u7edc\u901a\u4fe1\u7684\u57fa\u7840\u3002\u5728Java\u4e2d，\u4e3b\u8981\u6709\u4e24\u79cd\u7c7b\u578b\u7684\u5957\u63a5\u5b57：\u9762\u5411\u8fde\u63a5\u7684TCP\u5957\u63a5\u5b57\u548c\u65e0\u8fde\u63a5\u7684UDP\u5957\u63a5\u5b57\u3002 <\/p>\n
\u9762\u5411\u8fde\u63a5\u7684TCP\u5957\u63a5\u5b57\u901a\u8fc7\u4e09\u6b21\u63e1\u624b\u8fc7\u7a0b\u5efa\u7acb\u8fde\u63a5，\u5e76\u4fdd\u8bc1\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u548c\u987a\u5e8f\u3002TCP\u5957\u63a5\u5b57\u901a\u4fe1\u8fc7\u7a0b\u662f\u8fd9\u6837\u7684： 1. \u670d\u52a1\u5668\u7aef\u521b\u5efa\u4e00\u4e2a ServerSocket \u5b9e\u4f8b，\u5e76\u76d1\u542c\u7279\u5b9a\u7aef\u53e3\u3002 2. \u5ba2\u6237\u7aef\u521b\u5efa\u4e00\u4e2a Socket \u5b9e\u4f8b，\u5e76\u8bf7\u6c42\u8fde\u63a5\u5230\u670d\u52a1\u5668\u7684\u7aef\u53e3\u3002 3. \u670d\u52a1\u5668\u7aef\u63a5\u53d7\u8fde\u63a5\u8bf7\u6c42，\u6b64\u65f6\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u90fd\u62e5\u6709\u4e86\u53ef\u4ee5\u8fdb\u884c\u6570\u636e\u8bfb\u5199\u64cd\u4f5c\u7684 Socket \u5b9e\u4f8b\u3002 <\/p>\n
\u65e0\u8fde\u63a5\u7684UDP\u5957\u63a5\u5b57\u5219\u4e0d\u5efa\u7acb\u8fde\u63a5，\u6570\u636e\u5305\u76f4\u63a5\u5728\u7f51\u7edc\u4e0a\u53d1\u9001，\u4e0d\u4fdd\u8bc1\u6570\u636e\u7684\u5230\u8fbe\u987a\u5e8f\u548c\u5b8c\u6574\u6027\u3002UDP\u5957\u63a5\u5b57\u901a\u4fe1\u8fc7\u7a0b\u5982\u4e0b： 1. \u5ba2\u6237\u7aef\u521b\u5efa\u4e00\u4e2a DatagramSocket \u5b9e\u4f8b\u3002 2. \u521b\u5efa DatagramPacket \u5b9e\u4f8b，\u5305\u542b\u6570\u636e\u4ee5\u53ca\u63a5\u6536\u7aef\u7684\u5730\u5740\u4fe1\u606f\u3002 3. \u4f7f\u7528 DatagramSocket \u53d1\u9001\u6216\u63a5\u6536\u6570\u636e\u5305\u3002 <\/p>\n
TCP\u548cUDP\u5728Java\u4e2d\u7684\u5e94\u7528\u4e3b\u8981\u57fa\u4e8e\u4e24\u79cd\u4e0d\u540c\u7684\u901a\u4fe1\u9700\u6c42\u3002TCP\u5957\u63a5\u5b57\u9002\u7528\u4e8e\u9700\u8981\u4fdd\u8bc1\u6570\u636e\u5b8c\u6574\u6027\u548c\u987a\u5e8f\u7684\u573a\u666f，\u6bd4\u5982\u7f51\u9875\u6d4f\u89c8\u3001\u90ae\u4ef6\u53d1\u9001\u7b49\u3002\u800cUDP\u5957\u63a5\u5b57\u9002\u7528\u4e8e\u5bf9\u5b9e\u65f6\u6027\u8981\u6c42\u9ad8\u4f46\u53ef\u4ee5\u5bb9\u5fcd\u4e22\u5305\u7684\u5e94\u7528，\u6bd4\u5982\u7f51\u7edc\u8bed\u97f3\u901a\u8bdd\u3001\u89c6\u9891\u4f1a\u8bae\u7b49\u3002 <\/p>\n
TCP\u5957\u63a5\u5b57\u7684\u4f18\u52bf\u5728\u4e8e\u53ef\u9760\u6027，\u4f46\u5176\u5f00\u9500\u8f83\u5927，\u56e0\u4e3a\u9700\u8981\u5efa\u7acb\u8fde\u63a5\u548c\u7ef4\u62a4\u8fde\u63a5\u72b6\u6001\u3002UDP\u5957\u63a5\u5b57\u7684\u4f18\u52bf\u5728\u4e8e\u7b80\u6d01\u548c\u901f\u5ea6，\u4f46\u727a\u7272\u4e86\u6570\u636e\u7684\u53ef\u9760\u6027\u548c\u987a\u5e8f\u3002 <\/p>\n
\u5728Java\u4e2d\u8fdb\u884c\u7f51\u7edc\u7f16\u7a0b\u65f6，\u5f02\u5e38\u5904\u7406\u662f\u81f3\u5173\u91cd\u8981\u7684\u4e00\u73af\u3002\u7f51\u7edc\u8fde\u63a5\u53ef\u80fd\u4f1a\u56e0\u4e3a\u5404\u79cd\u539f\u56e0\u5931\u8d25，\u4f8b\u5982\u7f51\u7edc\u4e0d\u53ef\u8fbe\u3001\u8fde\u63a5\u88ab\u62d2\u7edd\u7b49\u3002\u56e0\u6b64，\u5408\u7406\u5730\u6355\u83b7\u548c\u5904\u7406\u5f02\u5e38\u662f\u4fdd\u8bc1\u7a0b\u5e8f\u7a33\u5b9a\u8fd0\u884c\u7684\u57fa\u7840\u3002 <\/p>\n
\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684TCP\u5957\u63a5\u5b57\u5f02\u5e38\u5904\u7406\u7684\u793a\u4f8b： <\/p>\n
try {
\n Socket socket = new Socket("127.0.0.1", 8080);
\n \/\/ \u4f7f\u7528socket\u8fdb\u884c\u6570\u636e\u4ea4\u6362
\n} catch (UnknownHostException e) {
\n \/\/ \u65e0\u6cd5\u8bc6\u522b\u4e3b\u673a\u5f02\u5e38
\n} catch (IOException e) {
\n \/\/ \u8f93\u5165\u8f93\u51fa\u5f02\u5e38，\u6bd4\u5982\u65e0\u6cd5\u5efa\u7acb\u8fde\u63a5
\n} finally {
\n \/\/ \u603b\u662f\u6267\u884c\u7684\u6e05\u7406\u5de5\u4f5c
\n}<\/p>\n
Java\u7684NIO（New Input\/Output）\u63d0\u4f9b\u4e86\u4e00\u79cd\u4e0e\u4f20\u7edfIO\u4e0d\u540c\u7684I\/O\u5de5\u4f5c\u65b9\u5f0f，\u5b83\u4f7f\u7528\u4e86\u901a\u9053（Channel）\u548c\u7f13\u51b2\u533a（Buffer）\u7684\u6982\u5ff5\u6765\u652f\u6301\u975e\u963b\u585eI\/O\u64cd\u4f5c\u3002 <\/p>\n
\u76f8\u5bf9\u4e8e\u4f20\u7edf\u7684IO\u6a21\u578b，NIO\u5177\u6709\u4ee5\u4e0b\u7279\u70b9： – \u975e\u963b\u585e\u6a21\u5f0f：NIO\u80fd\u591f\u5728\u6ca1\u6709\u6570\u636e\u53ef\u8bfb\u65f6\u8fd4\u56de，\u800c\u4e0d\u5fc5\u50cf\u4f20\u7edfIO\u90a3\u6837\u5728\u6570\u636e\u5230\u6765\u524d\u963b\u585e\u7b49\u5f85\u3002 – \u9009\u62e9\u5668（Selectors）：\u5141\u8bb8\u4e00\u4e2a\u5355\u72ec\u7684\u7ebf\u7a0b\u6765\u76d1\u89c6\u591a\u4e2a\u8f93\u5165\u901a\u9053，\u5f53\u901a\u9053\u4e2d\u6709\u6570\u636e\u53ef\u5904\u7406\u65f6，\u8be5\u7ebf\u7a0b\u4f1a\u88ab\u901a\u77e5\u3002 – \u5185\u5b58\u6620\u5c04\u6587\u4ef6：\u901a\u8fc7\u5185\u5b58\u6620\u5c04\u6587\u4ef6\u53ef\u4ee5\u76f4\u63a5\u4fee\u6539\u6587\u4ef6\u5185\u5bb9，\u8fd9\u5728\u5927\u6587\u4ef6\u5904\u7406\u65f6\u975e\u5e38\u6709\u7528\u3002 <\/p>\n
NIO\u4e0e\u4f20\u7edfIO\u7684\u5bf9\u6bd4\u8868\u683c\u5982\u4e0b： <\/p>\n
| \u7279\u6027 | Java IO | Java NIO | | ———– | ———————– | ————————- | | I\/O\u6a21\u578b | \u963b\u585eIO | \u975e\u963b\u585eIO | | \u6570\u636e\u5904\u7406 | Stream Oriented | Buffer Oriented | | \u901a\u9053\u7ba1\u7406 | \u53ea\u652f\u6301\u963b\u585e\u8bfb\u5199 | \u652f\u6301\u963b\u585e\u53ca\u975e\u963b\u585e\u8bfb\u5199\u64cd\u4f5c | | \u9009\u62e9\u5668 | \u4e0d\u652f\u6301 | \u652f\u6301 | | \u6027\u80fd | \u8f83\u4f4e | \u8f83\u9ad8 | | \u4f7f\u7528\u573a\u666f | \u8f83\u7b80\u5355\u6570\u636e\u5904\u7406 | \u590d\u6742\u3001\u9ad8\u5e76\u53d1\u6570\u636e\u5904\u7406 | <\/p>\n
\u901a\u8fc7\u4e0a\u8ff0\u7ae0\u8282，\u6211\u4eec\u5df2\u7ecf\u6253\u4e0b\u4e86Java\u5957\u63a5\u5b57\u7f16\u7a0b\u7684\u57fa\u7840，\u5e76\u4e86\u89e3\u4e86\u5982\u4f55\u5728\u5b9e\u8df5\u4e2d\u8fd0\u7528\u8fd9\u4e9b\u6280\u672f\u3002\u5728\u4e0b\u4e00\u8282\u4e2d，\u6211\u4eec\u5c06\u6df1\u5165\u4e86\u89e3\u5982\u4f55\u4f7f\u7528Java NIO\u63d0\u5347\u7f51\u7edc\u901a\u4fe1\u7684\u6548\u7387，\u5e76\u63a2\u7d22\u5b57\u8282\u6d41\u5904\u7406\u548c\u534f\u8bae\u89e3\u6790\u65b9\u9762\u7684\u6df1\u5165\u77e5\u8bc6\u3002 <\/p>\n
\u5728Java\u4e2d，\u5b57\u8282\u6d41\u5904\u7406\u662f\u901a\u8fc7InputStream\u548cOutputStream\u8fd9\u4e24\u4e2a\u62bd\u8c61\u7c7b\u53ca\u5176\u5b50\u7c7b\u6765\u5b8c\u6210\u7684\u3002InputStream\u662f\u6240\u6709\u8f93\u5165\u5b57\u8282\u6d41\u7684\u8d85\u7c7b，\u8d1f\u8d23\u8bfb\u53d6\u5b57\u8282\u6570\u636e；\u800cOutputStream\u662f\u6240\u6709\u8f93\u51fa\u5b57\u8282\u6d41\u7684\u8d85\u7c7b，\u8d1f\u8d23\u5199\u5165\u5b57\u8282\u6570\u636e\u3002\u5b57\u8282\u6d41\u5904\u7406\u4e0e\u5b57\u7b26\u6d41\u5904\u7406\u7684\u4e3b\u8981\u533a\u522b\u5728\u4e8e\u5b83\u4eec\u7684\u6570\u636e\u5904\u7406\u5355\u4f4d：\u5b57\u8282\u6d41\u5904\u7406\u7684\u662f\u539f\u59cb\u7684\u4e8c\u8fdb\u5236\u6570\u636e，\u800c\u5b57\u7b26\u6d41\u5904\u7406\u7684\u662f\u5b57\u7b26\u6570\u636e\u3002 <\/p>\n
\u5b57\u8282\u6d41\u7684\u4f18\u70b9\u5728\u4e8e\u5904\u7406\u901f\u5ea6\u5feb，\u76f4\u63a5\u64cd\u4f5c\u4e8c\u8fdb\u5236\u6570\u636e，\u4e0d\u6d89\u53ca\u5b57\u7b26\u7f16\u7801\u8f6c\u6362，\u56e0\u6b64\u5728\u5904\u7406\u975e\u6587\u672c\u6570\u636e（\u5982\u56fe\u50cf\u3001\u58f0\u97f3\u6587\u4ef6\u7b49）\u65f6\u66f4\u4e3a\u5408\u9002\u3002\u7136\u800c，\u5b57\u8282\u6d41\u5904\u7406\u4e0d\u5177\u5907\u8de8\u5e73\u53f0\u6027，\u56e0\u4e3a\u5b83\u4e0d\u6d89\u53ca\u5b57\u7b26\u7f16\u7801\u95ee\u9898，\u5982\u679c\u8981\u6b63\u786e\u5904\u7406\u5b57\u7b26\u6570\u636e，\u5c31\u53ef\u80fd\u9700\u8981\u5f15\u5165\u5b57\u7b26\u6d41\u3002 <\/p>\n
\u5c3d\u7ba1\u5728\u5f88\u591a\u573a\u666f\u4e0b\u9700\u8981\u76f4\u63a5\u4f7f\u7528\u5b57\u8282\u6d41，\u4f46\u5728\u5904\u7406\u6587\u672c\u6587\u4ef6\u65f6，\u5b57\u7b26\u6d41\u63d0\u4f9b\u4e86\u66f4\u65b9\u4fbf\u7684\u63a5\u53e3\u3002Java\u63d0\u4f9b\u4e86InputStreamReader\u548cOutputStreamWriter\u8fd9\u4e24\u4e2a\u6865\u6881\u7c7b\u6765\u5b9e\u73b0\u5b57\u8282\u6d41\u5230\u5b57\u7b26\u6d41\u7684\u8f6c\u6362\u3002 <\/p>\n
\u4ee5\u6587\u4ef6\u64cd\u4f5c\u4e3a\u4f8b，\u5982\u679c\u9700\u8981\u4ece\u4e00\u4e2a\u6587\u672c\u6587\u4ef6\u4e2d\u8bfb\u53d6\u5b57\u7b26\u6570\u636e，\u6211\u4eec\u901a\u5e38\u4e0d\u4f1a\u76f4\u63a5\u4f7f\u7528FileInputStream，\u800c\u662f\u4f1a\u4f7f\u7528FileInputStream\u7ed3\u5408InputStreamReader，\u5982\u4e0b： <\/p>\n
FileInputStream fileInputStream = new FileInputStream("example.txt");
\nInputStreamReader reader = new InputStreamReader(fileInputStream, "UTF-8");<\/p>\n
\u8fd9\u91cc， InputStreamReader \u5c06\u5b57\u8282\u6d41 fileInputStream \u8f6c\u6362\u6210\u5b57\u7b26\u6d41 reader ，\u5e76\u6307\u5b9a\u4e86\u5b57\u7b26\u7f16\u7801\u4e3a"UTF-8"\u3002\u8fd9\u6837，\u6211\u4eec\u5c31\u53ef\u4ee5\u901a\u8fc7\u5b57\u7b26\u6d41\u6765\u8bfb\u53d6\u548c\u5904\u7406\u6587\u672c\u6587\u4ef6\u4e86\u3002 <\/p>\n
SOCKS\u534f\u8bae\u5b9a\u4e49\u4e86\u4e00\u5957\u7528\u4e8e\u5728TCP\/IP\u534f\u8bae\u65cf\u4e0a\u5efa\u7acb\u8fde\u63a5\u7684\u6570\u636e\u5305\u7ed3\u6784\u3002\u6700\u5e38\u7528\u7684\u7248\u672c\u662fSOCKS5\u534f\u8bae，\u5b83\u5728SOCKS4\u7684\u57fa\u7840\u4e0a\u8fdb\u884c\u4e86\u6269\u5c55，\u589e\u52a0\u4e86\u5bf9UDP\u7684\u652f\u6301\u548c\u66f4\u5b8c\u5584\u7684\u8ba4\u8bc1\u673a\u5236\u3002 <\/p>\n
SOCKS5\u6570\u636e\u5305\u7684\u57fa\u672c\u7ed3\u6784\u5982\u4e0b： <\/p>\n
+—-+—–+——-+——+———-+———-+
\n|VER | CMD | RSV | ATYP | DST.ADDR | DST.PORT |
\n+—-+—–+——-+——+———-+———-+
\n| 1 | 1 | X'00' | 1 | Variable | 2 |
\n+—-+—–+——-+——+———-+———-+<\/p>\n
\u89e3\u6790SOCKS5\u534f\u8bae\u6570\u636e\u5305\u901a\u5e38\u6d89\u53ca\u7f51\u7edc\u7f16\u7a0b\u6280\u672f，\u6211\u4eec\u53ef\u4ee5\u5229\u7528Java\u7684Socket\u7f16\u7a0b\u6765\u5b9e\u73b0\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684Java\u65b9\u6cd5，\u7528\u4e8e\u8bfb\u53d6\u548c\u89e3\u6790SOCKS5\u8bf7\u6c42\u6570\u636e\u5305： <\/p>\n
import java.io.InputStream;
\nimport java.io.IOException;
\nimport java.net.InetAddress;
\nimport java.nio.ByteBuffer;<\/p>\n
public class Socks5Parser {<\/p>\n
public static void parseSocks5Request(InputStream inputStream) throws IOException {
\n \/\/ \u8bfb\u53d6SOCKS5\u8bf7\u6c42\u7684\u524d\u4e09\u4e2a\u5b57\u8282
\n byte[] header = new byte[3];
\n if (inputStream.read(header) != 3) {
\n throw new IOException("Failed to read SOCKS5 request header.");
\n }<\/p>\n
\/\/ \u6821\u9a8cSOCKS5\u7248\u672c\u53f7\u548c\u547d\u4ee4
\n if (header[0] != 0x05 || (header[1] != 0x01 && header[1] != 0x02 && header[1] != 0x03)) {
\n throw new IOException("Unsupported SOCKS5 command.");
\n }<\/p>\n
\/\/ \u8bfb\u53d6\u5269\u4f59\u7684\u6570\u636e\u5305\u5185\u5bb9，\u5305\u62ec\u5730\u5740\u7c7b\u578b\u3001\u5730\u5740\u548c\u7aef\u53e3
\n byte addressType = (byte) inputStream.read();
\n \/\/ … \u6839\u636e\u4e0d\u540c\u7684\u5730\u5740\u7c7b\u578b，\u89e3\u6790\u5730\u5740\u548c\u7aef\u53e3<\/p>\n
\/\/ \u8f93\u51fa\u89e3\u6790\u7ed3\u679c
\n System.out.println("SOCKS5 Request parsed successfully.");
\n }
\n}<\/p>\n
\u8fd9\u4e2a\u65b9\u6cd5\u9996\u5148\u8bfb\u53d6SOCKS5\u8bf7\u6c42\u7684\u524d\u4e09\u4e2a\u5b57\u8282，\u7136\u540e\u6821\u9a8cSOCKS5\u7248\u672c\u53f7\u548c\u547d\u4ee4，\u6700\u540e\u6839\u636e\u5730\u5740\u7c7b\u578b\u8bfb\u53d6\u5e76\u89e3\u6790\u5730\u5740\u548c\u7aef\u53e3\u4fe1\u606f\u3002\u7531\u4e8e\u7bc7\u5e45\u9650\u5236，\u6211\u7701\u7565\u4e86\u5730\u5740\u548c\u7aef\u53e3\u89e3\u6790\u7684\u5177\u4f53\u5b9e\u73b0\u3002 <\/p>\n
\u5b9e\u9645\u5f00\u53d1\u4e2d，\u6211\u4eec\u8fd8\u9700\u8981\u8003\u8651\u5f02\u5e38\u5904\u7406\u3001\u534f\u8bae\u7248\u672c\u517c\u5bb9\u6027\u7b49\u56e0\u7d20\u3002\u5bf9\u4e8e\u590d\u6742\u7684\u534f\u8bae\u89e3\u6790，\u53ef\u4ee5\u4f7f\u7528\u73b0\u6210\u7684\u5e93\u6765\u7b80\u5316\u5f00\u53d1\u6d41\u7a0b，\u4f8b\u5982\u4f7f\u7528Apache Commons Net\u5e93\u63d0\u4f9b\u7684SSLSocket\u5b9e\u73b0\u5b89\u5168\u7684SOCKS\u4ee3\u7406\u3002 <\/p>\n
\u89e3\u6790SOCKS5\u534f\u8bae\u6570\u636e\u5305\u7684\u4ee3\u7801\u903b\u8f91\u901a\u5e38\u5305\u542b\u4ee5\u4e0b\u51e0\u4e2a\u6b65\u9aa4： <\/p>\n
\u5728\u89e3\u6790\u8fc7\u7a0b\u4e2d，\u6211\u4eec\u8981\u8003\u8651\u7f51\u7edc\u5b57\u8282\u987a\u5e8f\u548c\u4e3b\u673a\u5b57\u8282\u987a\u5e8f\u4e4b\u95f4\u7684\u8f6c\u6362\u95ee\u9898，\u56e0\u4e3a\u7f51\u7edc\u4f20\u8f93\u4f7f\u7528\u7684\u662f\u5927\u7aef\u5b57\u8282\u5e8f，\u800cJava\u4f7f\u7528\u7684\u662f\u5c0f\u7aef\u5b57\u8282\u5e8f\u3002\u5177\u4f53\u5b9e\u73b0\u65f6，\u53ef\u4ee5\u901a\u8fc7\u4f4d\u64cd\u4f5c\u548c\u76f8\u5173\u7684\u7f51\u7edcAPI\u6765\u5b8c\u6210\u8f6c\u6362\u3002 <\/p>\n
\u901a\u8fc7\u4ee5\u4e0a\u65b9\u6cd5，\u6211\u4eec\u53ef\u4ee5\u5b8c\u6574\u5730\u89e3\u6790SOCKS5\u534f\u8bae\u7684\u6570\u636e\u5305，\u5e76\u8fdb\u884c\u8fdb\u4e00\u6b65\u7684\u5904\u7406\u3002\u8fd9\u5bf9\u4e8e\u5f00\u53d1\u9ad8\u6548\u7684\u7f51\u7edc\u5e94\u7528\u548c\u670d\u52a1\u6765\u8bf4\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002 <\/p>\n
\u591a\u7ebf\u7a0b\u662f\u5e76\u53d1\u7684\u4e00\u4e2a\u5b50\u96c6，\u5b83\u6307\u7684\u662f\u5728\u5355\u4e2a\u8fdb\u7a0b\u5185\u540c\u65f6\u8fd0\u884c\u591a\u4e2a\u7ebf\u7a0b\u3002\u8fd9\u79cd\u673a\u5236\u5141\u8bb8\u7a0b\u5e8f\u540c\u65f6\u8fdb\u884c\u591a\u4e2a\u4efb\u52a1，\u4ece\u800c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\u3002\u7136\u800c，\u5e76\u53d1\u4e0d\u4ec5\u9650\u4e8e\u7ebf\u7a0b，\u5b83\u8fd8\u6d89\u53ca\u5230\u8fdb\u7a0b\u3001\u7f51\u7edc\u901a\u4fe1\u7b49\u591a\u4e2a\u5c42\u9762\u3002\u5728Java\u4ee3\u7406\u670d\u52a1\u5668\u7684\u5f00\u53d1\u4e2d，\u591a\u7ebf\u7a0b\u6280\u672f\u662f\u5b9e\u73b0\u5e76\u53d1\u5904\u7406\u7684\u4e3b\u8981\u65b9\u5f0f\u4e4b\u4e00\u3002 <\/p>\n
\u5e76\u53d1\u5904\u7406\u53ef\u4ee5\u4f7f\u5f97\u4ee3\u7406\u670d\u52a1\u5668\u5728\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\u8bf7\u6c42\u65f6\u66f4\u52a0\u9ad8\u6548\u3002\u901a\u8fc7\u5408\u7406\u5730\u5206\u914d\u7ebf\u7a0b\u8d44\u6e90，\u670d\u52a1\u5668\u53ef\u4ee5\u5728\u6709\u9650\u7684\u786c\u4ef6\u8d44\u6e90\u4e0b，\u5904\u7406\u5c3d\u53ef\u80fd\u591a\u7684\u5e76\u53d1\u8fde\u63a5\u3002\u540c\u65f6，\u826f\u597d\u7684\u5e76\u53d1\u5904\u7406\u673a\u5236\u8fd8\u80fd\u591f\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u541e\u5410\u91cf，\u964d\u4f4e\u5ef6\u8fdf，\u5e76\u63d0\u9ad8\u6574\u4e2a\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u3002 <\/p>\n
Java\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u5e76\u53d1\u5de5\u5177\u7c7b，\u4f4d\u4e8e java.util.concurrent \u5305\u53ca\u5176\u5b50\u5305\u4e2d\u3002\u8fd9\u4e9b\u5de5\u5177\u7c7b\u7684\u8bbe\u8ba1\u76ee\u6807\u662f\u7b80\u5316\u5e76\u53d1\u7f16\u7a0b，\u4f8b\u5982 ExecutorService \u3001 Semaphore \u3001 CountDownLatch \u3001 CyclicBarrier \u3001 Phaser \u7b49\u3002\u5b83\u4eec\u4f7f\u5f97\u5f00\u53d1\u8005\u80fd\u591f\u4ee5\u58f0\u660e\u5f0f\u7684\u65b9\u5f0f\u7f16\u5199\u5e76\u53d1\u7a0b\u5e8f\u3002 <\/p>\n
\u4e3e\u4f8b\u6765\u8bf4， ExecutorService \u63a5\u53e3\u63d0\u4f9b\u4e86\u4e00\u79cd\u7528\u4e8e\u7ba1\u7406\u7ebf\u7a0b\u6c60\u7684\u65b9\u6cd5\u3002\u901a\u8fc7\u5b83\u53ef\u4ee5\u521b\u5efa\u4e0d\u540c\u7c7b\u578b\u548c\u5927\u5c0f\u7684\u7ebf\u7a0b\u6c60，\u7b80\u5316\u7ebf\u7a0b\u7684\u521b\u5efa\u548c\u9500\u6bc1，\u4f18\u5316\u7ebf\u7a0b\u7684\u590d\u7528\u548c\u7ba1\u7406\u3002\u8fd9\u5728\u5904\u7406\u5927\u91cf\u7f51\u7edc\u8bf7\u6c42\u65f6\u5c24\u4e3a\u91cd\u8981，\u56e0\u4e3a\u5b83\u53ef\u4ee5\u51cf\u5c11\u4e0a\u4e0b\u6587\u5207\u6362\u7684\u5f00\u9500，\u540c\u65f6\u5408\u7406\u5730\u5206\u914d\u7cfb\u7edf\u8d44\u6e90\u3002 <\/p>\n
\u7ebf\u7a0b\u6c60\u662f\u4e00\u79cd\u57fa\u4e8e\u9884\u5148\u521b\u5efa\u4e00\u5b9a\u6570\u91cf\u7684\u5de5\u4f5c\u7ebf\u7a0b\u5e76\u590d\u7528\u8fd9\u4e9b\u7ebf\u7a0b\u6765\u5904\u7406\u4efb\u52a1\u7684\u6280\u672f\u3002\u5b83\u7684\u597d\u5904\u662f\u51cf\u5c11\u7ebf\u7a0b\u521b\u5efa\u548c\u9500\u6bc1\u7684\u5f00\u9500，\u4ee5\u53ca\u63d0\u9ad8\u54cd\u5e94\u901f\u5ea6，\u907f\u514d\u7ebf\u7a0b\u8fc7\u591a\u5bfc\u81f4\u7684\u7cfb\u7edf\u8d44\u6e90\u7ade\u4e89\u3002 <\/p>\n
\u5728Java\u4e2d，\u53ef\u4ee5\u901a\u8fc7 ThreadPoolExecutor \u7c7b\u6765\u5b9e\u73b0\u7ebf\u7a0b\u6c60\u3002\u8be5\u7c7b\u5141\u8bb8\u6211\u4eec\u5b9a\u4e49\u6838\u5fc3\u7ebf\u7a0b\u6570\u3001\u6700\u5927\u7ebf\u7a0b\u6570\u3001\u5b58\u6d3b\u65f6\u95f4\u3001\u5de5\u4f5c\u961f\u5217\u7b49\u53c2\u6570\u3002\u4f8b\u5982： <\/p>\n
ExecutorService executorService = new ThreadPoolExecutor(
\n 5, \/\/ \u6838\u5fc3\u7ebf\u7a0b\u6570
\n 10, \/\/ \u6700\u5927\u7ebf\u7a0b\u6570
\n 60L, \/\/ \u7ebf\u7a0b\u5b58\u6d3b\u65f6\u95f4
\n TimeUnit.SECONDS, \/\/ \u65f6\u95f4\u5355\u4f4d
\n new LinkedBlockingQueue<>() \/\/ \u5de5\u4f5c\u961f\u5217
\n);<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d，\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5177\u67095\u4e2a\u6838\u5fc3\u7ebf\u7a0b\u3001\u6700\u5927\u53ef\u6269\u5c55\u523010\u4e2a\u7ebf\u7a0b\u7684\u7ebf\u7a0b\u6c60，\u7a7a\u95f2\u7ebf\u7a0b\u572860\u79d2\u540e\u9500\u6bc1，\u4f7f\u7528\u7684\u662f\u4e00\u4e2a\u65e0\u754c\u961f\u5217\u3002\u8fd9\u6837\u7684\u8bbe\u7f6e\u9002\u7528\u4e8e\u4efb\u52a1\u91cf\u5927\u4e14\u53ef\u4ee5\u5ef6\u8fdf\u6267\u884c\u7684\u573a\u666f\u3002 <\/p>\n
\u9501\u673a\u5236\u662f\u5b9e\u73b0\u7ebf\u7a0b\u540c\u6b65，\u4fdd\u8bc1\u7ebf\u7a0b\u5b89\u5168\u7684\u91cd\u8981\u624b\u6bb5\u3002\u5728Java\u4e2d，\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 synchronized \u5173\u952e\u5b57\u6216\u8005 ReentrantLock \u7c7b\u6765\u5b9e\u73b0\u9501\u673a\u5236\u3002\u5f53\u591a\u4e2a\u7ebf\u7a0b\u8bd5\u56fe\u540c\u65f6\u8bbf\u95ee\u5171\u4eab\u8d44\u6e90\u65f6，\u9501\u673a\u5236\u80fd\u591f\u4fdd\u8bc1\u5728\u540c\u4e00\u65f6\u523b\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u4fee\u6539\u8d44\u6e90\u3002 <\/p>\n
\u4f7f\u7528 synchronized \u5173\u952e\u5b57\u53ef\u4ee5\u5f88\u7b80\u5355\u5730\u5b9e\u73b0\u540c\u6b65，\u4f8b\u5982： <\/p>\n
public class Counter {
\n private int count = 0;<\/p>\n
public synchronized void increment() {
\n count++;
\n }<\/p>\n
public synchronized int getCount() {
\n return count;
\n }
\n}<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d， increment \u65b9\u6cd5\u548c getCount \u65b9\u6cd5\u90fd\u88ab synchronized \u4fee\u9970，\u4fdd\u8bc1\u4e86\u5bf9\u5171\u4eab\u8d44\u6e90 count \u7684\u8bbf\u95ee\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002\u4f7f\u7528\u9501\u673a\u5236\u867d\u7136\u80fd\u591f\u4fdd\u8bc1\u7ebf\u7a0b\u5b89\u5168，\u4f46\u8fc7\u5ea6\u4f7f\u7528\u6216\u4e0d\u5f53\u4f7f\u7528\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6b7b\u9501\u6216\u6027\u80fd\u95ee\u9898\u3002 <\/p>\n
\u5728Java\u4e2d，\u8fd8\u6709\u4e00\u79cd\u66f4\u7075\u6d3b\u7684\u9501\u673a\u5236\u2014\u2014 ReentrantLock \u3002\u5b83\u63d0\u4f9b\u4e86\u989d\u5916\u7684\u529f\u80fd，\u6bd4\u5982\u5c1d\u8bd5\u83b7\u53d6\u9501\u7684\u8d85\u65f6\u65f6\u95f4\u3001\u53ef\u4e2d\u65ad\u5730\u83b7\u53d6\u9501\u7b49\u3002\u4f7f\u7528 ReentrantLock \u53ef\u4ee5\u5199\u6210： <\/p>\n
import java.util.concurrent.locks.Lock;
\nimport java.util.concurrent.locks.ReentrantLock;<\/p>\n
public class Counter {
\n private final Lock lock = new ReentrantLock();
\n private int count = 0;<\/p>\n
public void increment() {
\n lock.lock();
\n try {
\n count++;
\n } finally {
\n lock.unlock();
\n }
\n }<\/p>\n
public int getCount() {
\n lock.lock();
\n try {
\n return count;
\n } finally {
\n lock.unlock();
\n }
\n }
\n}<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d，\u6211\u4eec\u4f7f\u7528 lock \u548c unlock \u65b9\u6cd5\u6765\u660e\u786e\u63a7\u5236\u9501\u7684\u8303\u56f4\u3002\u8fd9\u6837\u505a\u7684\u597d\u5904\u662f\u5373\u4f7f\u5728\u65b9\u6cd5\u5185\u90e8\u53d1\u751f\u4e86\u5f02\u5e38，\u4e5f\u80fd\u4fdd\u8bc1\u9501\u80fd\u591f\u88ab\u6b63\u786e\u91ca\u653e，\u907f\u514d\u6b7b\u9501\u3002 <\/p>\n
\u901a\u8fc7\u8fd9\u4e9b\u9501\u673a\u5236\u548c\u5e76\u53d1\u5de5\u5177\u7c7b\u7684\u5e94\u7528，Java\u4ee3\u7406\u670d\u52a1\u5668\u80fd\u591f\u6709\u6548\u5730\u5904\u7406\u5927\u91cf\u5e76\u53d1\u8fde\u63a5，\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027\u3002\u540c\u65f6，\u5408\u7406\u5730\u4f7f\u7528\u7ebf\u7a0b\u6c60\u548c\u9501\u673a\u5236\u4e5f\u80fd\u663e\u8457\u964d\u4f4e\u7cfb\u7edf\u8d44\u6e90\u6d88\u8017，\u63d0\u9ad8\u6574\u4f53\u7684\u8fd0\u884c\u6548\u7387\u3002 <\/p>\n
\u4ee3\u7406\u670d\u52a1\u5668\u4f5c\u4e3a\u7f51\u7edc\u8bf7\u6c42\u7684\u4e2d\u4ecb\u8005，\u626e\u6f14\u7740\u91cd\u8981\u7684\u89d2\u8272，\u4e0d\u4ec5\u9700\u8981\u4fdd\u8bc1\u9ad8\u901f\u7684\u6570\u636e\u8f6c\u53d1，\u8fd8\u9700\u8981\u786e\u4fdd\u901a\u4fe1\u7684\u5b89\u5168\u6027\u3002\u8fd9\u8981\u6c42\u4ee3\u7406\u670d\u52a1\u5668\u5177\u5907\u7528\u6237\u8ba4\u8bc1\u3001\u6570\u636e\u52a0\u5bc6\u4f20\u8f93\u3001\u8bbf\u95ee\u63a7\u5236\u548c\u65e5\u5fd7\u5ba1\u8ba1\u7b49\u5b89\u5168\u673a\u5236，\u4ee5\u62b5\u5fa1\u6f5c\u5728\u7684\u5b89\u5168\u5a01\u80c1\u3002 <\/p>\n
\u7528\u6237\u8ba4\u8bc1\u662f\u4fdd\u62a4\u4ee3\u7406\u670d\u52a1\u5668\u514d\u53d7\u672a\u6388\u6743\u8bbf\u95ee\u7684\u7b2c\u4e00\u9053\u9632\u7ebf\u3002\u7528\u6237\u8ba4\u8bc1\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u673a\u5236\u5b9e\u73b0，\u4f8b\u5982\u57fa\u672c\u8ba4\u8bc1（Basic Authentication）\u3001\u6458\u8981\u8ba4\u8bc1（Digest Authentication）\u6216\u66f4\u590d\u6742\u7684\u8ba4\u8bc1\u534f\u8bae\u5982OAuth 2.0\u3002 <\/p>\n
import org.apache.http.auth.UsernamePasswordCredentials;
\nimport org.apache.http.impl.client.BasicCredentialsProvider;
\nimport org.apache.http.impl.client.CloseableHttpClient;
\nimport org.apache.http.impl.client.HttpClients;<\/p>\n
public class HttpAuthenticationExample {
\n public static void main(String[] args) {
\n BasicCredentialsProvider credentialsProvider = new BasicCredentialsProvider();
\n credentialsProvider.setCredentials(
\n AuthScope.ANY,
\n new UsernamePasswordCredentials("username", "password")
\n );<\/p>\n
CloseableHttpClient httpClient = HttpClients.custom()
\n .setDefaultCredentialsProvider(credentialsProvider)
\n .build();
\n \/\/ \u4f7f\u7528httpClient\u53d1\u8d77\u8bf7\u6c42…
\n httpClient.close();
\n }
\n}<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d，\u6211\u4eec\u4f7f\u7528\u4e86Apache HttpClient\u5e93\u6765\u8bbe\u7f6e\u57fa\u672c\u8ba4\u8bc1\u3002 UsernamePasswordCredentials \u7528\u4e8e\u5b58\u653e\u7528\u6237\u540d\u548c\u5bc6\u7801， AuthScope.ANY \u8868\u793a\u5bf9\u6240\u6709\u8bf7\u6c42\u90fd\u4f7f\u7528\u8fd9\u4e2a\u8ba4\u8bc1\u4fe1\u606f\u3002\u901a\u8fc7 CredentialsProvider \u5c06\u8ba4\u8bc1\u4fe1\u606f\u4e0eHTTP\u5ba2\u6237\u7aef\u5173\u8054，\u4ece\u800c\u5b9e\u73b0\u81ea\u52a8\u7684\u8bf7\u6c42\u8ba4\u8bc1\u3002 <\/p>\n
\u6570\u636e\u52a0\u5bc6\u662f\u786e\u4fdd\u6570\u636e\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u4e0d\u88ab\u7a83\u542c\u6216\u7be1\u6539\u7684\u5173\u952e\u3002\u76ee\u524d\u6700\u5e38\u7528\u7684\u662fSSL\/TLS\u534f\u8bae，\u53ef\u4ee5\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u7684\u5b89\u5168\u3002 <\/p>\n
import javax.net.ssl.SSLContext;<\/p>\n
\/\/ \u521d\u59cb\u5316SSLContext\u7528\u4e8e\u5efa\u7acb\u5b89\u5168\u8fde\u63a5
\nSSLContext ctx = SSLContext.getInstance("TLS");
\n\/\/ \u5bc6\u94a5\u7ba1\u7406\u5668，\u5904\u7406\u5bc6\u94a5\u4ea4\u6362
\nKeyManagerFactory kmf = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
\n\/\/ \u4fe1\u4efb\u7ba1\u7406\u5668，\u5904\u7406\u8bc1\u4e66\u8ba4\u8bc1
\nTrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
\n\/\/ \u5bc6\u7801\u5957\u4ef6，\u5b9a\u4e49\u52a0\u5bc6\u7b97\u6cd5\u548c\u5bc6\u94a5\u4ea4\u6362\u673a\u5236
\nString[] cipherSuites = { "TLS_RSA_WITH_AES_256_CBC_SHA" };
\nSSLContext ctx = SSLContext.getInstance("TLS");
\nctx.init(kmf.getKeyManagers(), tmf.getTrustManagers(), new SecureRandom());<\/p>\n
\u5728\u4ee5\u4e0a\u4ee3\u7801\u4e2d，\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a SSLContext \u5b9e\u4f8b，\u5e76\u521d\u59cb\u5316\u4e86\u5bc6\u94a5\u7ba1\u7406\u5668\u548c\u4fe1\u4efb\u7ba1\u7406\u5668，\u8bbe\u7f6e\u4e86\u4f7f\u7528\u7684\u5bc6\u7801\u5957\u4ef6\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f，\u6211\u4eec\u5c31\u53ef\u4ee5\u5efa\u7acb\u4e00\u4e2a\u4f7f\u7528TLS\u534f\u8bae\u7684\u5b89\u5168\u8fde\u63a5\u3002 <\/p>\n
\u8bbf\u95ee\u63a7\u5236\u7b56\u7565\u53ef\u4ee5\u6839\u636e\u7528\u6237\u8eab\u4efd\u3001\u89d2\u8272\u4ee5\u53ca\u8bf7\u6c42\u7684\u8d44\u6e90\u6765\u5b9a\u4e49\u3002\u8fd9\u6837\u53ef\u4ee5\u9650\u5236\u4e0d\u540c\u7528\u6237\u5bf9\u7f51\u7edc\u8d44\u6e90\u7684\u8bbf\u95ee\u6743\u9650\u3002\u5b9e\u73b0\u8bbf\u95ee\u63a7\u5236\u901a\u5e38\u6d89\u53ca\u5230\u914d\u7f6e\u6587\u4ef6\u6216\u8005\u7528\u6237\u6570\u636e\u5e93\u7684\u7ba1\u7406\u3002 <\/p>\n
\u65e5\u5fd7\u8bb0\u5f55\u662f\u5ba1\u8ba1\u7684\u57fa\u7840，\u5141\u8bb8\u7ba1\u7406\u5458\u76d1\u63a7\u4ee3\u7406\u670d\u52a1\u5668\u7684\u72b6\u6001\u548c\u7528\u6237\u7684\u6d3b\u52a8\u3002\u5bf9\u4e8e\u5b9e\u73b0\u65e5\u5fd7\u8bb0\u5f55，\u901a\u5e38\u4f1a\u7528\u5230\u4e00\u4e9b\u6210\u719f\u7684\u65e5\u5fd7\u6846\u67b6\u5982Log4j\u6216SLF4J\u3002 <\/p>\n
import org.apache.logging.log4j.LogManager;
\nimport org.apache.logging.log4j.Logger;<\/p>\n
public class LoggingExample {
\n private static final Logger logger = LogManager.getLogger(LoggingExample.class);<\/p>\n
public static void main(String[] args) {
\n logger.info("\u8fd9\u662f\u4e00\u6761\u4fe1\u606f\u7ea7\u522b\u7684\u65e5\u5fd7\u8bb0\u5f55\u3002");
\n logger.error("\u8fd9\u662f\u4e00\u6761\u9519\u8bef\u7ea7\u522b\u7684\u65e5\u5fd7\u8bb0\u5f55\u3002");
\n \/\/ \u5176\u4ed6\u65e5\u5fd7\u7ea7\u522b…
\n }
\n}<\/p>\n
\u5728\u8be5\u65e5\u5fd7\u8bb0\u5f55\u793a\u4f8b\u4e2d，\u6211\u4eec\u4f7f\u7528Log4j 2\u6846\u67b6\u8bb0\u5f55\u4fe1\u606f\u7ea7\u522b\u7684\u65e5\u5fd7\u548c\u9519\u8bef\u7ea7\u522b\u7684\u65e5\u5fd7\u3002\u5728\u5b9e\u9645\u90e8\u7f72\u4e2d，\u8fd8\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6e\u6587\u4ef6\u6765\u8be6\u7ec6\u5b9a\u4e49\u65e5\u5fd7\u7684\u683c\u5f0f\u3001\u7ea7\u522b\u3001\u5b58\u50a8\u65b9\u5f0f\u548c\u8f93\u51fa\u4f4d\u7f6e\u7b49\u3002 <\/p>\n
\u901a\u8fc7\u4e0a\u8ff0\u65b9\u6cd5，\u6211\u4eec\u53ef\u4ee5\u5b9e\u73b0\u4ee3\u7406\u670d\u52a1\u5668\u7684\u5b89\u5168\u673a\u5236，\u4fdd\u8bc1\u7528\u6237\u548c\u6570\u636e\u7684\u5b89\u5168，\u540c\u65f6\u786e\u4fdd\u4ee3\u7406\u670d\u52a1\u5668\u7684\u7a33\u5b9a\u548c\u9ad8\u6548\u8fd0\u884c\u3002\u5728\u4e0b\u4e00\u7ae0\u4e2d，\u6211\u4eec\u5c06\u63a2\u8ba8\u4ee3\u7406\u670d\u52a1\u5668\u7684\u7ef4\u62a4\u548c\u4f18\u5316\u7b56\u7565\u3002 <\/p>\n
\u4ee3\u7406\u670d\u52a1\u5668\u7684\u7a33\u5b9a\u8fd0\u884c\u662f\u4fdd\u8bc1\u7f51\u7edc\u8fde\u63a5\u987a\u7545\u7684\u5173\u952e\u3002\u7ef4\u62a4\u548c\u4f18\u5316\u4ee3\u7406\u670d\u52a1\u5668\u4e0d\u4ec5\u80fd\u591f\u63d0\u9ad8\u7f51\u7edc\u6548\u7387，\u8fd8\u80fd\u786e\u4fdd\u7528\u6237\u6570\u636e\u7684\u5b89\u5168\u3002\u672c\u7ae0\u5c06\u63a2\u8ba8\u4ee3\u7406\u670d\u52a1\u5668\u7684\u7ef4\u62a4\u548c\u4f18\u5316\u65b9\u6cd5，\u4ee5\u53ca\u6027\u80fd\u8bc4\u4f30\u4e0e\u6545\u969c\u6392\u9664\u7684\u6280\u5de7\u3002 <\/p>\n
\u5728\u4ee3\u7406\u670d\u52a1\u5668\u7684\u8fd0\u884c\u8fc7\u7a0b\u4e2d，\u9519\u8bef\u662f\u4e0d\u53ef\u907f\u514d\u7684\u3002\u56e0\u6b64，\u5efa\u7acb\u4e00\u4e2a\u6709\u6548\u7684\u9519\u8bef\u5904\u7406\u673a\u5236\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002 <\/p>\n
\u5f02\u5e38\u5904\u7406\u5e94\u9075\u5faa\u4ee5\u4e0b\u6700\u4f73\u5b9e\u8df5： – \u6355\u83b7\u548c\u8bb0\u5f55 ：\u6240\u6709\u53ef\u80fd\u7684\u5f02\u5e38\u90fd\u5e94\u8be5\u88ab\u6355\u83b7，\u5e76\u8bb0\u5f55\u4e0b\u6765\u3002\u8fd9\u6837\u53ef\u4ee5\u4e3a\u540e\u7eed\u7684\u9519\u8bef\u5206\u6790\u63d0\u4f9b\u4e30\u5bcc\u7684\u4fe1\u606f\u3002 – \u5f02\u5e38\u5206\u7c7b ：\u5c06\u5f02\u5e38\u5206\u4e3a\u53ef\u6062\u590d\u5f02\u5e38\u548c\u975e\u53ef\u6062\u590d\u5f02\u5e38\u3002\u5bf9\u4e8e\u53ef\u6062\u590d\u5f02\u5e38，\u53ef\u4ee5\u5c1d\u8bd5\u91cd\u65b0\u5904\u7406\u8bf7\u6c42；\u5bf9\u4e8e\u975e\u53ef\u6062\u590d\u5f02\u5e38，\u5e94\u8be5\u901a\u77e5\u7528\u6237，\u5e76\u8bb0\u5f55\u8be6\u7ec6\u4fe1\u606f\u4f9b\u8fdb\u4e00\u6b65\u5206\u6790\u3002 – \u8d44\u6e90\u7ba1\u7406 ：\u4f7f\u7528try-catch-finally\u7ed3\u6784\u786e\u4fdd\u8d44\u6e90\u7684\u6b63\u786e\u91ca\u653e\u3002\u8fd9\u5bf9\u4e8e\u907f\u514d\u5185\u5b58\u6cc4\u6f0f\u81f3\u5173\u91cd\u8981\u3002 <\/p>\n
\u65e5\u5fd7\u8bb0\u5f55\u662f\u8bca\u65ad\u548c\u89e3\u51b3\u4ee3\u7406\u670d\u52a1\u5668\u95ee\u9898\u7684\u91cd\u8981\u624b\u6bb5\u3002 <\/p>\n
\u4ee3\u7406\u670d\u52a1\u5668\u7684\u6027\u80fd\u4f18\u5316\u662f\u786e\u4fdd\u9ad8\u6548\u7f51\u7edc\u901a\u4fe1\u7684\u5173\u952e\u3002 <\/p>\n
\u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90，\u70b9\u51fb\u83b7\u53d6 <\/p>\n
\u7b80\u4ecb：Java\u5b9e\u73b0\u7684\u4ee3\u7406\u670d\u52a1\u5668\u4f5c\u4e3a\u7f51\u7edc\u901a\u4fe1\u4e2d\u4ecb，\u652f\u6301SOCKS4\u548cSOCKS5\u534f\u8bae，\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u8eab\u4efd\u9690\u85cf\u548c\u589e\u5f3a\u5b89\u5168\u6027\u3002SOCKS4\u4ec5\u652f\u6301TCP\u8fde\u63a5，\u800cSOCKS5\u5728SOCKS4\u57fa\u7840\u4e0a\u589e\u52a0\u4e86\u7528\u6237\u8ba4\u8bc1\u548cUDP\u652f\u6301\u3002\u672c\u9879\u76ee\u8be6\u7ec6\u4ecb\u7ecd\u4e86\u4ee3\u7406\u670d\u52a1\u5668\u7684\u5b9e\u73b0，\u5305\u62ec\u6838\u5fc3\u6982\u5ff5\u5982\u5957\u63a5\u5b57\u7f16\u7a0b\u3001\u5b57\u8282\u6d41\u5904\u7406\u3001\u534f\u8bae\u89e3\u6790\u3001\u9519\u8bef\u5904\u7406\u3001\u5e76\u53d1\u5904\u7406\u3001\u5b89\u5168\u6027\u589e\u5f3a\u53ca\u65e5\u5fd7\u8bb0\u5f55\u3002 <\/p>\n
\u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90，\u70b9\u51fb\u83b7\u53d6 <\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb755\u6b21\uff0c\u70b9\u8d5e23\u6b21\uff0c\u6536\u85cf10\u6b21\u3002\u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90\uff0c\u70b9\u51fb\u83b7\u53d6 \u7b80\u4ecb\uff1aJava\u5b9e\u73b0\u7684\u4ee3\u7406\u670d\u52a1\u5668\u4f5c\u4e3a\u7f51\u7edc\u901a\u4fe1\u4e2d\u4ecb\uff0c\u652f\u6301SOCKS4\u548cSOCKS5\u534f\u8bae\uff0c\u4e3a\u5ba2\u6237\u7aef\u63d0\u4f9b\u8eab\u4efd\u9690\u85cf\u548c\u589e\u5f3a\u5b89\u5168\u6027\u3002SOCKS4\u4ec5\u652f\u6301TCP\u8fde\u63a5\uff0c\u800cSOCKS5\u5728SOCKS4\u57fa\u7840\u4e0a\u589e\u52a0\u4e86\u7528\u6237\u8ba4\u8bc1\u548cUDP\u652f\u6301\u3002\u672c\u9879\u76ee\u8be6\u7ec6\u4ecb\u7ecd\u4e86\u4ee3\u7406\u670d\u52a1\u5668\u7684\u5b9e\u73b0\uff0c\u5305\u62ec\u6838\u5fc3\u6982\u5ff5\u5982\u5957\u63a5\u5b57\u7f16\u7a0b\u3001\u5b57\u8282\u6d41\u5904\u7406\u3001\u534f\u8bae\u89e3\u6790\u3001\u9519\u8bef\u5904\u7406\u3001\u5e76\u53d1\u5904\u7406\u3001\u5b89\u5168\u6027\u589e\u5f3a\u53ca\u65e5\u5fd7\u8bb0\u5f55\u3002 …_java socks5<\/p>\n","protected":false},"author":2,"featured_media":23307,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"topic":[],"class_list":["post-23309","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server"],"yoast_head":"\n