java怎么设置代理ip实现高效网络请求

System.setProperty("http.proxyHost", "你的代理IP地址");
System.setProperty("http.proxyPort", "代理端口");
System.setProperty("https.proxyHost", "你的代理IP地址");
System.setProperty("https.proxyPort", "代理端口");

System.setProperty("http.proxyHost", "192.168.1.100");
System.setProperty("http.proxyPort", "8080");
System.setProperty("https.proxyHost", "192.168.1.100");
System.setProperty("https.proxyPort", "8080");

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.URL;

public class ProxyExample {
    public static void main(String[] args) {
        try {
            String proxyHost = "192.168.1.100";  // 代理IP
            int proxyPort = 8080;  // 代理端口

            // 创建代理对象
            Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(proxyHost, proxyPort));

            // 创建URL连接
            URL url = new URL("http://www.example.com");
            HttpURLConnection connection = (HttpURLConnection) url.openConnection(proxy);

            // 设置请求方法
            connection.setRequestMethod("GET");

            // 读取响应
            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String inputLine;
            StringBuilder response = new StringBuilder();

            while ((inputLine = in.readLine()) != null) {
                response.append(inputLine);
            }
            in.close();

            // 输出响应
            System.out.println(response.toString());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.URL;
import java.util.Base64;

public class AuthProxyExample {
    public static void main(String[] args) {
        try {
            String proxyHost = "192.168.1.100";  // 代理IP
            int proxyPort = 8080;  // 代理端口
            String username = "yourUsername";  // 代理用户名
            String password = "yourPassword";  // 代理密码

            // 创建代理对象
            Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(proxyHost, proxyPort));

            // 创建URL连接
            URL url = new URL("http://www.example.com");
            HttpURLConnection connection = (HttpURLConnection) url.openConnection(proxy);

            // 设置请求方法
            connection.setRequestMethod("GET");

            // 添加身份验证
            String encoded = Base64.getEncoder().encodeToString((username + ":" + password).getBytes("UTF-8"));
            connection.setRequestProperty("Proxy-Authorization", "Basic " + encoded);

            // 读取响应
            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String inputLine;
            StringBuilder response = new StringBuilder();

            while ((inputLine = in.readLine()) != null) {
                response.append(inputLine);
            }
            in.close();

            // 输出响应
            System.out.println(response.toString());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.HttpHost;

public class ApacheHttpClientProxyExample {
    public static void main(String[] args) {
        try {
            String proxyHost = "192.168.1.100";  // 代理IP
            int proxyPort = 8080;  // 代理端口

            // 创建代理
            HttpHost proxy = new HttpHost(proxyHost, proxyPort);

            // 创建HttpClient
            CloseableHttpClient httpClient = HttpClients.custom()
                    .setProxy(proxy)
                    .build();

            // 创建GET请求
            HttpGet httpGet = new HttpGet("http://www.example.com");

            // 执行请求
            HttpResponse response = httpClient.execute(httpGet);

            // 输出响应状态
            System.out.println("Response Status: " + response.getStatusLine());

            // 关闭HttpClient
            httpClient.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}