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Java Proxy代理可以通过多种方式提升网络性能,主要包括以下几个方面:
以下是一个简单的Java代理服务器示例,使用java.net.Proxy
和java.net.Socket
类:
import java.io.*;
import java.net.*;
public class SimpleProxyServer {
public static void main(String[] args) throws IOException {
int port = 8080;
ServerSocket serverSocket = new ServerSocket(port);
System.out.println("Proxy server started on port " + port);
while (true) {
Socket clientSocket = serverSocket.accept();
new Thread(new ProxyHandler(clientSocket)).start();
}
}
static class ProxyHandler implements Runnable {
private Socket clientSocket;
public ProxyHandler(Socket clientSocket) {
this.clientSocket = clientSocket;
}
@Override
public void run() {
try (
BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true);
Socket proxySocket = new Socket("www.example.com", 80)
) {
// Forward request from client to server
String requestLine = in.readLine();
out.println(requestLine);
String header;
while ((header = in.readLine()) != null && !header.isEmpty()) {
out.println(header);
}
out.println();
// Forward response from server to client
InputStream serverResponse = proxySocket.getInputStream();
byte[] buffer = new byte[4096];
int bytesRead;
while ((bytesRead = serverResponse.read(buffer)) != -1) {
out.write(buffer, 0, bytesRead);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
clientSocket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
通过合理配置和使用Java Proxy代理,可以显著提升网络性能和用户体验。
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