![\"menu-r.4af5f7ec.gif\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250619050550-68539aae3c553.gif\")
<\/p>\n \u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90，\u70b9\u51fb\u83b7\u53d6 <\/p>\n
\u7b80\u4ecb：\u5728\u4e92\u8054\u7f51\u670d\u52a1\u4e2d，TCP\u534f\u8bae\u662f\u5efa\u7acb\u53ef\u9760\u8fde\u63a5\u7684\u5173\u952e\u6280\u672f\u3002\u672c\u793a\u4f8b\u9879\u76ee\u201cTCP\u591a\u7ebf\u7a0b\u670d\u52a1\u5668demo\u201d\u4e13\u4e3a\u521d\u5b66\u8005\u8bbe\u8ba1，\u6f14\u793a\u4e86\u5982\u4f55\u8fd0\u7528\u591a\u7ebf\u7a0b\u6280\u672f\u589e\u5f3aTCP\u670d\u52a1\u5668\u7684\u5e76\u53d1\u5904\u7406\u80fd\u529b\u3002\u901a\u8fc7\u5b9e\u8df5，\u5b66\u4e60\u8005\u80fd\u591f\u7406\u89e3TCP\u534f\u8bae\u7684\u57fa\u7840，\u638c\u63e1\u591a\u7ebf\u7a0b\u670d\u52a1\u5668\u7684\u67b6\u6784，\u5e76\u63a2\u7d22\u6027\u80fd\u4f18\u5316\u3001\u7ebf\u7a0b\u5b89\u5168\u548c\u5f02\u5e38\u5904\u7406\u7b49\u5173\u952e\u6982\u5ff5\u3002\u5b9e\u8df5\u8fc7\u7a0b\u4e2d\u7684\u95ee\u9898\u89e3\u51b3\u6709\u52a9\u4e8e\u63d0\u9ad8\u6280\u80fd，\u5e76\u4e3a\u66f4\u9ad8\u7ea7\u7684\u5e94\u7528\u5982SSL\/TLS\u3001\u8d1f\u8f7d\u5747\u8861\u548c\u5206\u5e03\u5f0f\u7cfb\u7edf\u6253\u4e0b\u57fa\u7840\u3002 ![\"TCP\u591a\u7ebf\u7a0b\u670d\u52a1\u5668demo\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250619050550-68539aae5311b.png\")
<\/p>\n
\u5728\u6df1\u5165\u63a2\u8ba8\u73b0\u4ee3\u7f51\u7edc\u901a\u4fe1\u4e2d，TCP\/IP\u534f\u8bae\u662f\u6700\u4e3a\u57fa\u7840\u548c\u6838\u5fc3\u7684\u3002\u4e86\u89e3TCP\u4e09\u6b21\u63e1\u624b\u662f\u5efa\u7acb\u4e00\u4e2a\u53ef\u9760\u7f51\u7edc\u8fde\u63a5\u7684\u8d77\u70b9\u3002\u672c\u7ae0\u5c06\u5e26\u60a8\u6df1\u5165\u7406\u89e3TCP\u534f\u8bae\u7684\u5de5\u4f5c\u539f\u7406\u548c\u4e09\u6b21\u63e1\u624b\u7684\u8fc7\u7a0b\u3002 <\/p>\n
\u4f20\u8f93\u63a7\u5236\u534f\u8bae（TCP）\u662f\u4e00\u79cd\u9762\u5411\u8fde\u63a5\u7684\u3001\u53ef\u9760\u7684\u3001\u57fa\u4e8e\u5b57\u8282\u6d41\u7684\u4f20\u8f93\u5c42\u901a\u4fe1\u534f\u8bae\u3002\u5b83\u901a\u8fc7\u786e\u4fdd\u6570\u636e\u5305\u7684\u987a\u5e8f\u548c\u5b8c\u6574\u6027\u6765\u4fdd\u8bc1\u7f51\u7edc\u901a\u4fe1\u7684\u53ef\u9760\u6027\u3002 <\/p>\n
\u4e09\u6b21\u63e1\u624b\u662f\u5efa\u7acbTCP\u8fde\u63a5\u7684\u8fc7\u7a0b，\u5b83\u786e\u4fdd\u53cc\u65b9\u90fd\u51c6\u5907\u597d\u8fdb\u884c\u6570\u636e\u4f20\u8f93\u3002\u4ee5\u4e0b\u662f\u63e1\u624b\u8fc7\u7a0b\u7684\u8be6\u7ec6\u6b65\u9aa4： <\/p>\n
sequenceDiagram
\n \u5ba2\u6237\u7aef->>\u670d\u52a1\u5668: SYN
\n \u670d\u52a1\u5668->>\u5ba2\u6237\u7aef: SYN+ACK
\n \u5ba2\u6237\u7aef->>\u670d\u52a1\u5668: ACK<\/p>\n
\u5728\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d，TCP\u534f\u8bae\u901a\u8fc7\u5e8f\u5217\u53f7\u786e\u8ba4\u673a\u5236\u548c\u786e\u8ba4\u5e94\u7b54\u673a\u5236\u6765\u4fdd\u8bc1\u6570\u636e\u7684\u53ef\u9760\u4f20\u8f93\u3002\u8fd9\u79cd\u4e09\u6b21\u63e1\u624b\u673a\u5236\u4e3a\u540e\u7eed\u7684\u901a\u4fe1\u5960\u5b9a\u4e86\u57fa\u7840，\u786e\u4fdd\u4e86\u7f51\u7edc\u4f20\u8f93\u7684\u7a33\u5b9a\u6027\u3002 <\/p>\n
\u5728\u591a\u7ebf\u7a0b\u7f16\u7a0b\u4e2d，\u7ebf\u7a0b\u53ef\u4ee5\u770b\u4f5c\u662f\u7a0b\u5e8f\u7684\u6267\u884c\u8def\u5f84，\u662f\u64cd\u4f5c\u7cfb\u7edf\u80fd\u591f\u8fdb\u884c\u8fd0\u7b97\u8c03\u5ea6\u7684\u6700\u5c0f\u5355\u4f4d\u3002\u5b83\u88ab\u5305\u542b\u5728\u8fdb\u7a0b\u4e4b\u4e2d，\u662f\u8fdb\u7a0b\u4e2d\u7684\u5b9e\u9645\u8fd0\u4f5c\u5355\u4f4d\u3002\u6bcf\u4e2a\u7ebf\u7a0b\u90fd\u5171\u4eab\u5176\u6240\u5c5e\u8fdb\u7a0b\u7684\u8d44\u6e90，\u5982\u5185\u5b58\u548c\u6253\u5f00\u6587\u4ef6\u3002 <\/p>\n
\u7ebf\u7a0b\u7684\u6982\u5ff5\u4e3a\u8f6f\u4ef6\u5f00\u53d1\u63d0\u4f9b\u4e86\u6781\u5927\u7684\u7075\u6d3b\u6027\u3002\u4f8b\u5982，\u4e00\u4e2a\u6d4f\u89c8\u5668\u53ef\u4ee5\u540c\u65f6\u4e0b\u8f7d\u591a\u4e2a\u6587\u4ef6，\u8fd9\u610f\u5473\u7740\u5b83\u9700\u8981\u591a\u4e2a\u7ebf\u7a0b，\u6bcf\u4e2a\u7ebf\u7a0b\u8d1f\u8d23\u4e00\u4e2a\u4e0b\u8f7d\u4efb\u52a1\u3002\u540c\u6837，\u5728\u670d\u52a1\u5668\u7aef，\u670d\u52a1\u5668\u53ef\u4ee5\u5904\u7406\u6765\u81ea\u4e0d\u540c\u5ba2\u6237\u7aef\u7684\u591a\u4e2a\u8bf7\u6c42，\u6bcf\u4e2a\u8bf7\u6c42\u90fd\u53ef\u4ee5\u7531\u5355\u72ec\u7684\u7ebf\u7a0b\u6765\u5904\u7406，\u4ece\u800c\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u5e76\u53d1\u6027\u80fd\u3002 <\/p>\n
\u4f7f\u7528\u7ebf\u7a0b\u7684\u4e3b\u8981\u4f5c\u7528\u662f\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6548\u7387\u3002\u5728\u591a\u5904\u7406\u5668\u73af\u5883\u4e2d，\u591a\u7ebf\u7a0b\u53ef\u4ee5\u540c\u65f6\u8fd0\u884c\u5728\u4e0d\u540c\u7684\u5904\u7406\u5668\u4e0a，\u5145\u5206\u5229\u7528\u591a\u6838\u5904\u7406\u5668\u7684\u4f18\u52bf，\u8ba9\u7a0b\u5e8f\u8fd0\u884c\u5f97\u66f4\u5feb\u3002 <\/p>\n
\u521b\u5efa\u7ebf\u7a0b\u901a\u5e38\u6709\u4e24\u79cd\u65b9\u6cd5：\u7ee7\u627f Thread \u7c7b\u6216\u5b9e\u73b0 Runnable \u63a5\u53e3\u3002 <\/p>\n
\/\/ \u901a\u8fc7\u7ee7\u627fThread\u7c7b\u521b\u5efa\u7ebf\u7a0b
\nclass MyThread extends Thread {
\n @Override
\n public void run() {
\n \/\/ \u6267\u884c\u5177\u4f53\u4efb\u52a1
\n }
\n}<\/p>\n
\/\/ \u901a\u8fc7\u5b9e\u73b0Runnable\u63a5\u53e3\u521b\u5efa\u7ebf\u7a0b
\nclass MyRunnable implements Runnable {
\n @Override
\n public void run() {
\n \/\/ \u6267\u884c\u5177\u4f53\u4efb\u52a1
\n }
\n}<\/p>\n
\u7ee7\u627f Thread \u7c7b\u65f6，\u6211\u4eec\u7684\u7c7b\u5c06\u62e5\u6709\u6240\u6709Thread\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u8fd9\u5728\u9700\u8981\u6267\u884c\u67d0\u4e9b\u7279\u5b9a\u64cd\u4f5c\u65f6\u975e\u5e38\u65b9\u4fbf，\u6bd4\u5982\u8bbe\u7f6e\u7ebf\u7a0b\u4f18\u5148\u7ea7\u3002\u7136\u800c，\u7531\u4e8eJava\u4e0d\u652f\u6301\u591a\u91cd\u7ee7\u627f，\u8fd9\u9650\u5236\u4e86 Thread \u7c7b\u7ee7\u627f\u7684\u7075\u6d3b\u6027\u3002 <\/p>\n
\u5b9e\u73b0 Runnable \u63a5\u53e3\u7684\u65b9\u5f0f\u5219\u66f4\u52a0\u7075\u6d3b，\u5b83\u5141\u8bb8\u6211\u4eec\u7684\u7c7b\u7ee7\u7eed\u7ee7\u627f\u5176\u4ed6\u7c7b，\u8fd9\u5728\u9700\u8981\u591a\u91cd\u7ee7\u627f\u7684\u573a\u666f\u4e0b\u975e\u5e38\u6709\u7528\u3002\u6b64\u5916，\u901a\u8fc7\u5b9e\u73b0 Runnable \u63a5\u53e3\u53ef\u4ee5\u66f4\u597d\u5730\u4e0e\u8d44\u6e90\u6c60\u6216\u8005\u7ebf\u7a0b\u6c60\u7b49\u9ad8\u7ea7\u7279\u6027\u96c6\u6210\u3002 <\/p>\n
\u5728\u9009\u62e9\u521b\u5efa\u7ebf\u7a0b\u7684\u65b9\u6cd5\u65f6，\u63a8\u8350\u5b9e\u73b0 Runnable \u63a5\u53e3\u3002\u56e0\u4e3a\u8fd9\u79cd\u65b9\u5f0f\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u7075\u6d3b\u6027\u548c\u53ef\u6269\u5c55\u6027\u3002\u4e0d\u8fc7，\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d，\u5e94\u5f53\u6839\u636e\u5177\u4f53\u7684\u9700\u6c42\u548c\u573a\u666f\u6765\u9009\u62e9\u3002 <\/p>\n
\u670d\u52a1\u5668\u5e76\u53d1\u6a21\u578b\u4e3b\u8981\u5206\u4e3a\u4e09\u79cd\u7c7b\u578b：\u5355\u8fdb\u7a0b\u5355\u7ebf\u7a0b\u6a21\u578b\u3001\u591a\u8fdb\u7a0b\u6a21\u578b\u548c\u591a\u7ebf\u7a0b\u6a21\u578b\u3002 <\/p>\n
\u591a\u7ebf\u7a0b\u670d\u52a1\u5668\u901a\u5e38\u91c7\u7528\u4e8b\u4ef6\u9a71\u52a8\u7684\u65b9\u5f0f\u5904\u7406\u5e76\u53d1\u8bf7\u6c42\u3002\u670d\u52a1\u5668\u76d1\u542c\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42，\u5f53\u6709\u65b0\u7684\u8fde\u63a5\u5230\u6765\u65f6，\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7ebf\u7a0b\u6765\u5904\u7406\u8fd9\u4e2a\u8fde\u63a5\u3002\u6bcf\u4e2a\u7ebf\u7a0b\u72ec\u7acb\u5730\u5904\u7406\u81ea\u5df1\u7684\u4efb\u52a1，\u76f4\u5230\u4efb\u52a1\u5b8c\u6210\u3002 <\/p>\n
\u591a\u7ebf\u7a0b\u670d\u52a1\u5668\u7684\u5de5\u4f5c\u6d41\u7a0b\u901a\u5e38\u9075\u5faa\u4ee5\u4e0b\u51e0\u4e2a\u6b65\u9aa4： <\/p>\n
\u8fd9\u79cd\u5de5\u4f5c\u6d41\u7a0b\u786e\u4fdd\u4e86\u670d\u52a1\u5668\u53ef\u4ee5\u9ad8\u6548\u5730\u5904\u7406\u591a\u4e2a\u5e76\u53d1\u8fde\u63a5，\u540c\u65f6\u4fdd\u6301\u8f83\u4f4e\u7684\u7cfb\u7edf\u8d44\u6e90\u6d88\u8017\u3002 <\/p>\n
\u4e3a\u4e86\u6f14\u793a\u591a\u7ebf\u7a0b\u670d\u52a1\u5668\u7684\u5b9e\u73b0，\u4e0b\u9762\u7ed9\u51fa\u4e00\u4e2a\u7b80\u5355\u7684Java\u793a\u4f8b\u4ee3\u7801，\u5c55\u793a\u5982\u4f55\u4f7f\u7528\u7ebf\u7a0b\u6765\u5904\u7406\u5ba2\u6237\u7aef\u8fde\u63a5： <\/p>\n
import java.io.*;
\nimport java.net.*;<\/p>\n
public class MultiThreadedServer {
\n public static void main(String[] args) throws IOException {
\n int port = 8080;
\n ServerSocket serverSocket = new ServerSocket(port);
\n System.out.println("Server is listening on port: " + port);<\/p>\n
try {
\n while (true) {
\n Socket clientSocket = serverSocket.accept();
\n System.out.println("New client connected: " + clientSocket.getInetAddress());
\n Thread clientThread = new ClientHandler(clientSocket);
\n clientThread.start();
\n }
\n } finally {
\n serverSocket.close();
\n }
\n }<\/p>\n
private static class ClientHandler extends Thread {
\n private final Socket clientSocket;<\/p>\n
public ClientHandler(Socket socket) {
\n this.clientSocket = socket;
\n }<\/p>\n
public void run() {
\n try {
\n BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
\n PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true);
\n String inputLine;
\n while ((inputLine = in.readLine()) != null) {
\n System.out.println("Received from client: " + inputLine);
\n out.println("Echo: " + inputLine);
\n }
\n } catch (IOException e) {
\n e.printStackTrace();
\n } finally {
\n try {
\n clientSocket.close();
\n } catch (IOException e) {
\n e.printStackTrace();
\n }
\n }
\n }
\n }
\n}<\/p>\n
\u5728\u6b64\u793a\u4f8b\u4e2d，\u670d\u52a1\u5668\u4e3a\u6bcf\u4e2a\u8fde\u63a5\u7684\u5ba2\u6237\u7aef\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7ebf\u7a0b\u3002\u6bcf\u4e2a\u7ebf\u7a0b\u72ec\u7acb\u5730\u5904\u7406\u4e00\u4e2a\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42，\u5b9e\u73b0\u4e86\u670d\u52a1\u5668\u7684\u5e76\u53d1\u5904\u7406\u80fd\u529b\u3002 <\/p>\n
\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d，\u7ebf\u7a0b\u5b89\u5168\u662f\u6307\u5f53\u591a\u4e2a\u7ebf\u7a0b\u8bbf\u95ee\u67d0\u4e2a\u7c7b\u65f6，\u8fd9\u4e2a\u7c7b\u59cb\u7ec8\u80fd\u591f\u8868\u73b0\u51fa\u6b63\u786e\u7684\u884c\u4e3a\u3002\u6362\u8a00\u4e4b，\u5373\u4f7f\u5728\u6709\u591a\u4e2a\u7ebf\u7a0b\u5e76\u53d1\u6267\u884c\u64cd\u4f5c\u7684\u60c5\u51b5\u4e0b，\u4e5f\u80fd\u591f\u4fdd\u8bc1\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002 <\/p>\n
\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\u4ea7\u751f\u98ce\u9669\u7684\u6839\u6e90\u5728\u4e8e\u591a\u4e2a\u7ebf\u7a0b\u5bf9\u540c\u4e00\u8d44\u6e90\u7684\u5e76\u53d1\u8bbf\u95ee\u3002\u8fd9\u79cd\u5e76\u53d1\u8bbf\u95ee\u4f1a\u5bfc\u81f4\u4e0d\u53ef\u9884\u671f\u7684\u7ed3\u679c，\u4f8b\u5982\u6570\u636e\u7684\u635f\u574f\u3001\u7a0b\u5e8f\u7684\u72b6\u6001\u4e0d\u4e00\u81f4，\u751a\u81f3\u662f\u7cfb\u7edf\u5d29\u6e83\u3002\u7279\u522b\u662f\u5728\u5171\u4eab\u8d44\u6e90\u7684\u8bfb\u5199\u64cd\u4f5c\u4e2d，\u5982\u679c\u7f3a\u4e4f\u9002\u5f53\u7684\u540c\u6b65\u673a\u5236，\u8fd9\u79cd\u60c5\u51b5\u5c31\u5bb9\u6613\u53d1\u751f\u3002 <\/p>\n
\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\u7684\u4e00\u4e2a\u5178\u578b\u4f8b\u5b50\u662f\u7ecf\u5178\u7684\u201c\u68c0\u67e5-\u7136\u540e-\u884c\u52a8\u201d（Check-Then-Act）\u95ee\u9898，\u6bd4\u5982\u5728Java\u4e2d\u5bf9\u4e00\u4e2a\u7b80\u5355\u7684\u8ba1\u6570\u5668\u8fdb\u884c\u64cd\u4f5c： <\/p>\n
if (counter == MAX_VALUE) {
\n counter = 0;
\n}<\/p>\n
\u5047\u8bbe\u8fd9\u4e2a\u8ba1\u6570\u5668\u88ab\u591a\u4e2a\u7ebf\u7a0b\u5171\u4eab，\u5f53\u4e24\u4e2a\u7ebf\u7a0b\u51e0\u4e4e\u540c\u65f6\u6267\u884c\u5230\u8fd9\u4e2a\u6761\u4ef6\u5224\u65ad\u65f6，\u5b83\u4eec\u53ef\u80fd\u90fd\u68c0\u6d4b\u5230 counter \u7684\u503c\u8fd8\u6ca1\u6709\u8fbe\u5230 MAX_VALUE ，\u968f\u540e\u4e24\u4e2a\u7ebf\u7a0b\u90fd\u5c06 counter \u8bbe\u7f6e\u4e3a0，\u5bfc\u81f4\u8ba1\u6570\u5668\u72b6\u6001\u4e22\u5931\u3002 <\/p>\n
\u53e6\u4e00\u4e2a\u4f8b\u5b50\u662f\u591a\u7ebf\u7a0b\u5bf9\u96c6\u5408\u7684\u64cd\u4f5c，\u5982\u904d\u5386\u540c\u65f6\u6dfb\u52a0\u5143\u7d20，\u53ef\u80fd\u4f1a\u5bfc\u81f4 ConcurrentModificationException ，\u8fd9\u662f\u7531\u4e8e\u8fed\u4ee3\u5668\u5728\u904d\u5386\u8fc7\u7a0b\u4e2d\u68c0\u6d4b\u5230\u96c6\u5408\u88ab\u4fee\u6539\u4e86\u3002 <\/p>\n
\u540c\u6b65\u673a\u5236\u7684\u76ee\u7684\u662f\u4e3a\u4e86\u907f\u514d\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898，\u4fdd\u8bc1\u7ebf\u7a0b\u5e76\u53d1\u8bbf\u95ee\u5171\u4eab\u8d44\u6e90\u65f6\u7684\u6570\u636e\u4e00\u81f4\u6027\u3002\u5728Java\u4e2d，\u540c\u6b65\u673a\u5236\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u79cd： <\/p>\n
\u9009\u62e9\u54ea\u79cd\u540c\u6b65\u673a\u5236\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u4f7f\u7528\u573a\u666f\u3002\u5bf9\u4e8e\u7b80\u5355\u7684\u540c\u6b65\u9700\u6c42，\u5185\u7f6e\u7684 synchronized \u901a\u5e38\u8db3\u591f\u4f7f\u7528\u3002\u5bf9\u4e8e\u66f4\u590d\u6742\u7684\u573a\u666f，\u663e\u5f0f\u9501\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u7075\u6d3b\u6027，\u800c\u539f\u5b50\u53d8\u91cf\u9002\u7528\u4e8e\u7b80\u5355\u7684\u64cd\u4f5c，\u6bd4\u5982\u8ba1\u6570\u5668\u548c\u7d2f\u52a0\u5668\u3002 <\/p>\n
\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528 synchronized \u5173\u952e\u5b57\u5b9e\u73b0\u540c\u6b65\u7684\u793a\u4f8b： <\/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\u8fd9\u4e2a\u7b80\u5355\u7684\u8ba1\u6570\u5668\u793a\u4f8b\u4e2d， increment \u548c getCount \u65b9\u6cd5\u90fd\u88ab synchronized \u4fee\u9970，\u786e\u4fdd\u4e86\u6bcf\u6b21\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u6267\u884c\u8fd9\u4e9b\u65b9\u6cd5\u3002 <\/p>\n
\u53e6\u4e00\u4e2a\u4f8b\u5b50\u662f\u4f7f\u7528 ReentrantLock \u663e\u5f0f\u9501： <\/p>\n
import java.util.concurrent.locks.Lock;
\nimport java.util.concurrent.locks.ReentrantLock;<\/p>\n
public class CounterWithLock {
\n private int count = 0;
\n private final Lock lock = new ReentrantLock();<\/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， increment \u548c getCount \u65b9\u6cd5\u901a\u8fc7 lock.lock() \u548c lock.unlock() \u5bf9\u5171\u4eab\u8d44\u6e90\u8fdb\u884c\u52a0\u9501\u548c\u89e3\u9501\u64cd\u4f5c，\u786e\u4fdd\u4e86\u7ebf\u7a0b\u5b89\u5168\u3002 <\/p>\n
\u4f7f\u7528\u540c\u6b65\u673a\u5236\u65f6，\u6709\u4e00\u4e9b\u6280\u5de7\u9700\u8981\u6ce8\u610f： <\/p>\n
\u4e3a\u4e86\u6df1\u5165\u7406\u89e3\u8fd9\u4e9b\u6982\u5ff5，\u5efa\u8bae\u521b\u5efa\u4e00\u4e9b\u6f14\u793a\u4ee3\u7801\u5e76\u5b9e\u9645\u8fd0\u884c，\u89c2\u5bdf\u5728\u4e0d\u540c\u540c\u6b65\u673a\u5236\u4e0b\u7a0b\u5e8f\u7684\u884c\u4e3a，\u4ece\u800c\u83b7\u5f97\u66f4\u76f4\u89c2\u7684\u8ba4\u8bc6\u3002 <\/p>\n
\u5728\u73b0\u4ee3\u591a\u7ebf\u7a0b\u5e94\u7528\u4e2d，\u7ebf\u7a0b\u6c60\u662f\u7ba1\u7406\u7ebf\u7a0b\u751f\u547d\u5468\u671f\u548c\u8d44\u6e90\u5206\u914d\u7684\u91cd\u8981\u7ec4\u4ef6\u3002\u5b83\u901a\u8fc7\u7ef4\u62a4\u4e00\u5b9a\u6570\u91cf\u7684\u5de5\u4f5c\u7ebf\u7a0b，\u5e76\u5c06\u8bf7\u6c42\u4efb\u52a1\u5206\u914d\u7ed9\u8fd9\u4e9b\u7ebf\u7a0b\u6267\u884c，\u4ee5\u5b9e\u73b0\u8d44\u6e90\u7684\u6709\u6548\u5229\u7528\u3002\u672c\u7ae0\u8282\u5c06\u6df1\u5165\u63a2\u8ba8\u7ebf\u7a0b\u6c60\u7684\u6982\u5ff5\u3001\u4f18\u52bf\u3001\u914d\u7f6e\u548c\u6027\u80fd\u4f18\u5316\u7b56\u7565\u3002 <\/p>\n
\u7ebf\u7a0b\u6c60\u80cc\u540e\u7684\u6838\u5fc3\u7406\u5ff5\u662f\u901a\u8fc7\u91cd\u7528\u4e00\u7ec4\u56fa\u5b9a\u7684\u7ebf\u7a0b\u6765\u6267\u884c\u591a\u4e2a\u4efb\u52a1，\u4ece\u800c\u907f\u514d\u4e86\u9891\u7e41\u5730\u521b\u5efa\u548c\u9500\u6bc1\u7ebf\u7a0b\u6240\u5e26\u6765\u7684\u6027\u80fd\u5f00\u9500\u3002 <\/p>\n
\u7ebf\u7a0b\u6c60\u5de5\u4f5c\u65f6，\u9996\u5148\u521d\u59cb\u5316\u4e00\u5b9a\u6570\u91cf\u7684\u7ebf\u7a0b\u5e76\u653e\u7f6e\u5728\u4e00\u4e2a\u6c60\u4e2d\u7b49\u5f85\u3002\u5f53\u6709\u65b0\u4efb\u52a1\u63d0\u4ea4\u5230\u7ebf\u7a0b\u6c60\u65f6，\u6c60\u4e2d\u7ebf\u7a0b\u4f1a\u6309\u7167\u4f18\u5148\u7ea7\u3001\u5148\u8fdb\u5148\u51fa\u7b49\u89c4\u5219\u9009\u62e9\u4e00\u4e2a\u7ebf\u7a0b\u6765\u5904\u7406\u4efb\u52a1\u3002\u4efb\u52a1\u6267\u884c\u5b8c\u6bd5\u540e，\u7ebf\u7a0b\u4e0d\u4f1a\u9500\u6bc1，\u800c\u662f\u8fd4\u56de\u7ebf\u7a0b\u6c60\u7b49\u5f85\u4e0b\u4e00\u4e2a\u4efb\u52a1\u3002\u5982\u679c\u7ebf\u7a0b\u6c60\u4e2d\u7684\u7ebf\u7a0b\u6570\u91cf\u4e0d\u8db3\u4ee5\u5904\u7406\u6240\u6709\u5e76\u53d1\u4efb\u52a1，\u7ebf\u7a0b\u6c60\u53ef\u4ee5\u6839\u636e\u914d\u7f6e\u6269\u5bb9\u6216\u6392\u961f\u7b49\u5f85\u6267\u884c\u3002 <\/p>\n
\u7ebf\u7a0b\u6c60\u7684\u6838\u5fc3\u903b\u8f91\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4f2a\u4ee3\u7801\u5c55\u793a： <\/p>\n
\u521d\u59cb\u5316\u7ebf\u7a0b\u6c60，\u5305\u542bn\u4e2a\u7ebf\u7a0b
\n\u5faa\u73af\u76d1\u542c\u4efb\u52a1\u961f\u5217
\n \u5f53\u6709\u4efb\u52a1\u5230\u6765\u65f6，\u4ece\u7ebf\u7a0b\u6c60\u4e2d\u83b7\u53d6\u4e00\u4e2a\u7a7a\u95f2\u7ebf\u7a0b
\n \u5c06\u4efb\u52a1\u5206\u914d\u7ed9\u7ebf\u7a0b\u6267\u884c
\n \u4efb\u52a1\u6267\u884c\u5b8c\u6bd5\u540e，\u7ebf\u7a0b\u8fd4\u56de\u7ebf\u7a0b\u6c60\u7b49\u5f85\u4e0b\u4e00\u4e2a\u4efb\u52a1<\/p>\n
\u7ebf\u7a0b\u6c60\u7684\u7ebf\u7a0b\u6570\u91cf\u3001\u4efb\u52a1\u961f\u5217\u7b49\u53c2\u6570\u901a\u5e38\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6e\u6587\u4ef6\u6216\u7f16\u7a0b\u65b9\u5f0f\u6307\u5b9a，\u4ee5\u9002\u5e94\u4e0d\u540c\u573a\u666f\u7684\u6027\u80fd\u9700\u6c42\u3002 <\/p>\n
\u4f20\u7edf\u591a\u7ebf\u7a0b\u7684\u6bcf\u4e2a\u4efb\u52a1\u90fd\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7ebf\u7a0b，\u4efb\u52a1\u5b8c\u6210\u540e\u7ebf\u7a0b\u968f\u5373\u9500\u6bc1\u3002\u8fd9\u79cd\u65b9\u6cd5\u7b80\u5355\u76f4\u63a5，\u4f46\u5728\u5904\u7406\u5927\u91cf\u77ed\u751f\u547d\u5468\u671f\u4efb\u52a1\u65f6，\u4f1a\u5e26\u6765\u5de8\u5927\u7684\u7ebf\u7a0b\u521b\u5efa\u548c\u9500\u6bc1\u5f00\u9500\u3002 <\/p>\n
\u7ebf\u7a0b\u6c60\u7684\u5f15\u5165\u53ef\u4ee5\u6709\u6548\u51cf\u5c11\u7ebf\u7a0b\u7684\u521b\u5efa\u548c\u9500\u6bc1\u6b21\u6570，\u901a\u8fc7\u590d\u7528\u7ebf\u7a0b\u51cf\u5c11\u4e0a\u4e0b\u6587\u5207\u6362\u7684\u6b21\u6570，\u4ece\u800c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\u3002\u6b64\u5916，\u7ebf\u7a0b\u6c60\u8fd8\u63d0\u4f9b\u4e86\u66f4\u597d\u7684\u8d44\u6e90\u63a7\u5236\u548c\u5f02\u5e38\u7ba1\u7406\u80fd\u529b\u3002 <\/p>\n
\u7ebf\u7a0b\u6c60\u7684\u914d\u7f6e\u548c\u4f18\u5316\u662f\u4fdd\u8bc1\u7a0b\u5e8f\u9ad8\u6548\u8fd0\u884c\u7684\u5173\u952e\u3002\u672c\u8282\u5c06\u8be6\u7ec6\u5206\u6790\u7ebf\u7a0b\u6c60\u7684\u53c2\u6570\u914d\u7f6e\u5e76\u5206\u4eab\u4e00\u4e9b\u6027\u80fd\u4f18\u5316\u7b56\u7565\u3002 <\/p>\n
\u4e00\u4e2a\u5178\u578b\u7684\u7ebf\u7a0b\u6c60\u914d\u7f6e\u901a\u5e38\u5305\u62ec\u6838\u5fc3\u7ebf\u7a0b\u6570\u3001\u6700\u5927\u7ebf\u7a0b\u6570\u3001\u4efb\u52a1\u961f\u5217\u5bb9\u91cf\u3001\u7ebf\u7a0b\u5de5\u5382\u3001\u62d2\u7edd\u6267\u884c\u5904\u7406\u5668\u7b49\u53c2\u6570\u3002\u5408\u7406\u7684\u53c2\u6570\u914d\u7f6e\u53ef\u4ee5\u6700\u5927\u5316\u7ebf\u7a0b\u6c60\u7684\u6027\u80fd\u8868\u73b0\u3002 <\/p>\n
\u5bf9\u4e8e\u8fd9\u4e9b\u53c2\u6570\u7684\u914d\u7f6e，\u5f00\u53d1\u8005\u9700\u8981\u6839\u636e\u81ea\u5df1\u5e94\u7528\u7684\u7279\u70b9\u548c\u6027\u80fd\u76ee\u6807\u6765\u8c03\u6574\u3002\u4f8b\u5982，\u5728\u4efb\u52a1\u91cf\u975e\u5e38\u5927\u7684\u60c5\u51b5\u4e0b，\u53ef\u80fd\u9700\u8981\u589e\u52a0\u6700\u5927\u7ebf\u7a0b\u6570\u4ee5\u652f\u6301\u66f4\u591a\u7684\u5e76\u53d1\u6267\u884c，\u540c\u65f6\u4e5f\u8981\u589e\u52a0\u4efb\u52a1\u961f\u5217\u7684\u5bb9\u91cf\u6765\u7f13\u5b58\u66f4\u591a\u7684\u5f85\u5904\u7406\u4efb\u52a1\u3002 <\/p>\n
\u6027\u80fd\u4f18\u5316\u662f\u4e00\u4e2a\u6301\u7eed\u7684\u8fc7\u7a0b，\u9700\u8981\u5f00\u53d1\u8005\u6839\u636e\u5b9e\u9645\u8fd0\u884c\u60c5\u51b5\u4e0d\u65ad\u8c03\u6574\u914d\u7f6e\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u901a\u7528\u7684\u4f18\u5316\u7b56\u7565： <\/p>\n
\u7ebf\u7a0b\u6c60\u4f5c\u4e3a\u591a\u7ebf\u7a0b\u7f16\u7a0b\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206，\u5176\u914d\u7f6e\u548c\u4f18\u5316\u5bf9\u6574\u4e2a\u5e94\u7528\u7684\u6027\u80fd\u6709\u7740\u76f4\u63a5\u7684\u5f71\u54cd\u3002\u901a\u8fc7\u672c\u7ae0\u8282\u7684\u4ecb\u7ecd，\u76f8\u4fe1\u4f60\u5df2\u7ecf\u5bf9\u7ebf\u7a0b\u6c60\u7684\u4f7f\u7528\u548c\u7ba1\u7406\u6709\u4e86\u66f4\u6df1\u5165\u7684\u7406\u89e3\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d，\u8fd8\u9700\u6839\u636e\u5177\u4f53\u4e1a\u52a1\u9700\u6c42\u548c\u73af\u5883\u8fdb\u884c\u8c03\u6574\u548c\u4f18\u5316\u3002 <\/p>\n
\u5f02\u5e38\u662f\u7a0b\u5e8f\u8fd0\u884c\u4e2d\u53d1\u751f\u7684\u4e0d\u6b63\u5e38\u60c5\u51b5，\u53ef\u80fd\u5bfc\u81f4\u7a0b\u5e8f\u975e\u6b63\u5e38\u7ec8\u6b62\u3002\u5728Java\u4e2d，\u5f02\u5e38\u5206\u4e3a\u4e24\u7c7b：\u68c0\u67e5\u578b\u5f02\u5e38（checked exceptions）\u548c\u975e\u68c0\u67e5\u578b\u5f02\u5e38（unchecked exceptions）\u3002\u68c0\u67e5\u578b\u5f02\u5e38\u9700\u8981\u663e\u5f0f\u5730\u5728\u4ee3\u7801\u4e2d\u5904\u7406\u6216\u8005\u58f0\u660e\u629b\u51fa，\u800c\u975e\u68c0\u67e5\u578b\u5f02\u5e38\u5305\u62ec\u8fd0\u884c\u65f6\u5f02\u5e38\u548c\u9519\u8bef，\u901a\u5e38\u7531\u7a0b\u5e8f\u903b\u8f91\u9519\u8bef\u6216\u7cfb\u7edf\u9519\u8bef\u5f15\u8d77，\u4e0d\u9700\u8981\u663e\u5f0f\u6355\u83b7\u3002 <\/p>\n
\u6355\u83b7\u5f02\u5e38\u53ef\u4ee5\u4f7f\u7528try-catch\u5757，\u4f8b\u5982： <\/p>\n
try {
\n \/\/ \u4ee3\u7801\u5757，\u53ef\u80fd\u53d1\u751f\u5f02\u5e38
\n int result = 10 \/ 0;
\n} catch (ArithmeticException e) {
\n \/\/ \u5f02\u5e38\u5904\u7406\u4ee3\u7801
\n System.out.println("\u6355\u83b7\u5230\u7b97\u672f\u5f02\u5e38: " + e.getMessage());
\n}<\/p>\n
\u5728\u6355\u83b7\u5f02\u5e38\u65f6，\u5e94\u5f53\u6839\u636e\u5f02\u5e38\u7c7b\u578b\u8fdb\u884c\u5206\u7c7b\u6355\u83b7，\u5e76\u7ed9\u51fa\u5177\u4f53\u7684\u5904\u7406\u903b\u8f91\u3002\u5bf9\u4e8e\u7cfb\u7edf\u6027\u7684\u5f02\u5e38\u5904\u7406，\u901a\u5e38\u4f1a\u5b9a\u4e49\u5f02\u5e38\u5904\u7406\u7c7b\u6765\u7edf\u4e00\u5904\u7406\u4e0d\u540c\u7c7b\u578b\u7684\u5f02\u5e38\u3002 <\/p>\n
\u81ea\u5b9a\u4e49\u5f02\u5e38\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u66f4\u597d\u5730\u63a7\u5236\u5f02\u5e38\u884c\u4e3a，\u6ee1\u8db3\u7279\u5b9a\u4e1a\u52a1\u903b\u8f91\u7684\u9700\u6c42\u3002\u81ea\u5b9a\u4e49\u5f02\u5e38\u901a\u5e38\u7ee7\u627f\u81eaException\u7c7b\u6216\u5176\u5b50\u7c7b，\u53ef\u4ee5\u901a\u8fc7\u6784\u9020\u51fd\u6570\u4f20\u9012\u9519\u8bef\u4fe1\u606f\u3002 <\/p>\n
public class MyException extends Exception {
\n public MyException(String message) {
\n super(message);
\n }
\n}<\/p>\n
\/\/ \u4f7f\u7528\u81ea\u5b9a\u4e49\u5f02\u5e38
\ntry {
\n if (someCondition) {
\n throw new MyException("\u53d1\u751f\u4e86\u4e00\u4e2a\u9519\u8bef\u6761\u4ef6");
\n }
\n} catch (MyException e) {
\n System.out.println("\u6355\u83b7\u5230\u81ea\u5b9a\u4e49\u5f02\u5e38: " + e.getMessage());
\n}<\/p>\n
\u5f02\u5e38\u4f20\u64ad\u662f\u6307\u5728\u65b9\u6cd5\u4e2d\u6355\u83b7\u5f02\u5e38\u540e，\u6839\u636e\u9700\u8981\u51b3\u5b9a\u662f\u5426\u629b\u51fa\u65b0\u7684\u5f02\u5e38\u3002\u901a\u5e38\u5c06\u6355\u83b7\u5230\u7684\u5f02\u5e38\u5305\u88c5\u6210\u66f4\u5177\u6709\u4e1a\u52a1\u542b\u4e49\u7684\u5f02\u5e38，\u7136\u540e\u91cd\u65b0\u629b\u51fa，\u8fd9\u6837\u53ef\u4ee5\u907f\u514d\u66b4\u9732\u5e95\u5c42\u5b9e\u73b0\u7ec6\u8282，\u540c\u65f6\u63d0\u4f9b\u66f4\u6709\u7528\u7684\u4fe1\u606f\u3002 <\/p>\n
try {
\n \/\/ \u6f5c\u5728\u7684\u5f02\u5e38\u4ee3\u7801
\n} catch (SomeSpecificException e) {
\n throw new MyBusinessException("\u4e1a\u52a1\u5f02\u5e38\u53d1\u751f", e);
\n}<\/p>\n
\u6027\u80fd\u74f6\u9888\u5206\u6790\u662f\u4f18\u5316\u7684\u7b2c\u4e00\u6b65，\u901a\u5e38\u9700\u8981\u8bc6\u522b\u670d\u52a1\u5668\u7684\u74f6\u9888\u4f4d\u7f6e\u3002\u74f6\u9888\u53ef\u4ee5\u662fCPU\u3001\u5185\u5b58\u3001\u78c1\u76d8I\/O\u3001\u7f51\u7edcI\/O\u7b49\u8d44\u6e90\u4f7f\u7528\u8fc7\u5ea6\u3002\u5206\u6790\u5de5\u5177\u5982top, vmstat, iostat, netstat\u7b49\u53ef\u4ee5\u63d0\u4f9b\u5b9e\u65f6\u6027\u80fd\u6570\u636e\u3002\u53e6\u5916，\u4f7f\u7528Java\u7684jvisualvm, jconsole\u7b49JVM\u76d1\u63a7\u5de5\u5177\u80fd\u591f\u5e2e\u52a9\u4e86\u89e3\u5e94\u7528\u7a0b\u5e8f\u7684\u5185\u5b58\u4f7f\u7528\u3001\u7ebf\u7a0b\u72b6\u6001\u3001CPU\u6d88\u8017\u7b49\u4fe1\u606f\u3002 <\/p>\n
\u6839\u636e\u74f6\u9888\u5206\u6790\u7ed3\u679c，\u53ef\u4ee5\u91c7\u53d6\u4e0d\u540c\u7684\u4f18\u5316\u63aa\u65bd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u4f18\u5316\u5efa\u8bae\u548c\u5b9e\u8df5\u6848\u4f8b： <\/p>\n
\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u540c\u6b65\u9501，\u5229\u7528\u5e76\u53d1\u5de5\u5177\u7c7b（\u5982ConcurrentHashMap）\u6765\u63d0\u9ad8\u5e76\u53d1\u6027\u80fd\u3002 <\/p>\n<\/li>\n
JVM\u8c03\u4f18 ： <\/p>\n<\/li>\n
\u5b9e\u8df5\u6848\u4f8b： <\/p>\n
\u5047\u8bbe\u4e00\u4e2aWeb\u5e94\u7528\u670d\u52a1\u5668\u7684CPU\u4f7f\u7528\u7387\u5f88\u9ad8，\u901a\u8fc7\u5206\u6790\u53d1\u73b0\u662f\u7531\u4e8e\u67d0\u4e2a\u9ad8\u9891\u8c03\u7528\u7684\u670d\u52a1\u65b9\u6cd5\u4e2d\u5b58\u5728\u5927\u91cf\u540c\u6b65\u9501\u5bfc\u81f4\u7684\u7ebf\u7a0b\u963b\u585e\u3002 <\/p>\n
\u4f18\u5316\u524d\u4ee3\u7801\u793a\u4f8b ： <\/p>\n
public class ExpensiveService {
\n private final Object lock = new Object();<\/p>\n
public void expensiveOperation() {
\n synchronized (lock) {
\n \/\/ \u6267\u884c\u8017\u65f6\u64cd\u4f5c
\n }
\n }
\n}<\/p>\n
\u4f18\u5316\u540e\u4ee3\u7801\u793a\u4f8b ： <\/p>\n
public class ExpensiveService {
\n private final AtomicInteger concurrency = new AtomicInteger();<\/p>\n
public void expensiveOperation() {
\n if (!concurrency.compareAndSet(0, 1)) {
\n \/\/ \u8d44\u6e90\u5df2\u88ab\u5176\u4ed6\u7ebf\u7a0b\u4f7f\u7528，\u8fd9\u91cc\u53ef\u4ee5\u5904\u7406\u7b49\u5f85\u6216\u8005\u629b\u51fa\u5f02\u5e38
\n throw new RuntimeException("\u8d44\u6e90\u6b63\u5fd9，\u8bf7\u7a0d\u540e\u518d\u8bd5\u3002");
\n }
\n try {
\n \/\/ \u6267\u884c\u8017\u65f6\u64cd\u4f5c
\n } finally {
\n concurrency.set(0);
\n }
\n }
\n}<\/p>\n
\u5728\u4f18\u5316\u540e\u4ee3\u7801\u4e2d，\u4f7f\u7528\u4e86 AtomicInteger \u6765\u7ba1\u7406\u8d44\u6e90\u4f7f\u7528\u72b6\u6001，\u907f\u514d\u4e86\u4f7f\u7528\u91cd\u91cf\u7ea7\u7684 synchronized \u5173\u952e\u5b57，\u5927\u5927\u63d0\u9ad8\u4e86\u6027\u80fd\u3002 <\/p>\n
\u6027\u80fd\u4f18\u5316\u662f\u4e00\u4e2a\u6301\u7eed\u7684\u8fc7\u7a0b，\u9700\u8981\u4e0d\u65ad\u76d1\u63a7\u3001\u6d4b\u8bd5\u548c\u8c03\u4f18\u3002\u901a\u8fc7\u5e94\u7528\u4e0a\u8ff0\u7b56\u7565\u548c\u65b9\u6cd5，\u53ef\u4ee5\u7cfb\u7edf\u5730\u63d0\u5347\u670d\u52a1\u5668\u7684\u6027\u80fd\u548c\u54cd\u5e94\u80fd\u529b，\u6ee1\u8db3\u65e5\u76ca\u589e\u957f\u7684\u4e1a\u52a1\u9700\u6c42\u3002 <\/p>\n
\u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90，\u70b9\u51fb\u83b7\u53d6 <\/p>\n
\u7b80\u4ecb：\u5728\u4e92\u8054\u7f51\u670d\u52a1\u4e2d，TCP\u534f\u8bae\u662f\u5efa\u7acb\u53ef\u9760\u8fde\u63a5\u7684\u5173\u952e\u6280\u672f\u3002\u672c\u793a\u4f8b\u9879\u76ee\u201cTCP\u591a\u7ebf\u7a0b\u670d\u52a1\u5668demo\u201d\u4e13\u4e3a\u521d\u5b66\u8005\u8bbe\u8ba1，\u6f14\u793a\u4e86\u5982\u4f55\u8fd0\u7528\u591a\u7ebf\u7a0b\u6280\u672f\u589e\u5f3aTCP\u670d\u52a1\u5668\u7684\u5e76\u53d1\u5904\u7406\u80fd\u529b\u3002\u901a\u8fc7\u5b9e\u8df5，\u5b66\u4e60\u8005\u80fd\u591f\u7406\u89e3TCP\u534f\u8bae\u7684\u57fa\u7840，\u638c\u63e1\u591a\u7ebf\u7a0b\u670d\u52a1\u5668\u7684\u67b6\u6784，\u5e76\u63a2\u7d22\u6027\u80fd\u4f18\u5316\u3001\u7ebf\u7a0b\u5b89\u5168\u548c\u5f02\u5e38\u5904\u7406\u7b49\u5173\u952e\u6982\u5ff5\u3002\u5b9e\u8df5\u8fc7\u7a0b\u4e2d\u7684\u95ee\u9898\u89e3\u51b3\u6709\u52a9\u4e8e\u63d0\u9ad8\u6280\u80fd，\u5e76\u4e3a\u66f4\u9ad8\u7ea7\u7684\u5e94\u7528\u5982SSL\/TLS\u3001\u8d1f\u8f7d\u5747\u8861\u548c\u5206\u5e03\u5f0f\u7cfb\u7edf\u6253\u4e0b\u57fa\u7840\u3002 <\/p>\n
\u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90，\u70b9\u51fb\u83b7\u53d6 <\/p><\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb707\u6b21\uff0c\u70b9\u8d5e30\u6b21\uff0c\u6536\u85cf19\u6b21\u3002\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d\uff0c\u7ebf\u7a0b\u5b89\u5168\u662f\u6307\u5f53\u591a\u4e2a\u7ebf\u7a0b\u8bbf\u95ee\u67d0\u4e2a\u7c7b\u65f6\uff0c\u8fd9\u4e2a\u7c7b\u59cb\u7ec8\u80fd\u591f\u8868\u73b0\u51fa\u6b63\u786e\u7684\u884c\u4e3a\u3002\u6362\u8a00\u4e4b\uff0c\u5373\u4f7f\u5728\u6709\u591a\u4e2a\u7ebf\u7a0b\u5e76\u53d1\u6267\u884c\u64cd\u4f5c\u7684\u60c5\u51b5\u4e0b\uff0c\u4e5f\u80fd\u591f\u4fdd\u8bc1\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\u4ea7\u751f\u98ce\u9669\u7684\u6839\u6e90\u5728\u4e8e\u591a\u4e2a\u7ebf\u7a0b\u5bf9\u540c\u4e00\u8d44\u6e90\u7684\u5e76\u53d1\u8bbf\u95ee\u3002\u8fd9\u79cd\u5e76\u53d1\u8bbf\u95ee\u4f1a\u5bfc\u81f4\u4e0d\u53ef\u9884\u671f\u7684\u7ed3\u679c\uff0c\u4f8b\u5982\u6570\u636e\u7684\u635f\u574f\u3001\u7a0b\u5e8f\u7684\u72b6\u6001\u4e0d\u4e00\u81f4\uff0c\u751a\u81f3\u662f\u7cfb\u7edf\u5d29\u6e83\u3002\u7279\u522b\u662f\u5728\u5171\u4eab\u8d44\u6e90\u7684\u8bfb\u5199\u64cd\u4f5c\u4e2d\uff0c\u5982\u679c\u7f3a\u4e4f\u9002\u5f53\u7684\u540c\u6b65\u673a\u5236\uff0c\u8fd9\u79cd\u60c5\u51b5\u5c31\u5bb9\u6613\u53d1\u751f\u3002\u81ea\u5b9a\u4e49\u5f02\u5e38\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u66f4\u597d\u5730\u63a7\u5236\u5f02\u5e38\u884c\u4e3a\uff0c\u6ee1\u8db3\u7279\u5b9a\u4e1a\u52a1\u903b\u8f91\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"author":2,"featured_media":44546,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"topic":[],"class_list":["post-44548","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server"],"yoast_head":"\n