独享代理 Java 示例

这个示例基于 demo-sdk-dedicated-proxy 的 Java 目录整理，适合已经使用 OkHttp 或需要 Java 最小可运行示例的场景。

运行前准备

设置环境变量：
- PRIVATE_HOST
- PRIVATE_PORT
- PRIVATE_USERNAME
- PRIVATE_PASSWORD
- 可选：PRIVATE_BASE
- 可选：TARGET_URL
使用 Maven 构建，并确保依赖中包含 okhttp

示例代码

import okhttp3.Credentials;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Proxy;

public class Main {
    private static String getenv(String key, String fallback) {
        String value = System.getenv(key);
        return (value != null && !value.isBlank()) ? value : fallback;
    }

    public static void main(String[] args) throws IOException {
        String host = getenv("PRIVATE_HOST", "s1.ip.16yun.cn");
        int port = Integer.parseInt(getenv("PRIVATE_PORT", "39010"));
        String user = getenv("PRIVATE_USERNAME", getenv("PRIVATE_USER", null));
        String pass = getenv("PRIVATE_PASSWORD", getenv("PRIVATE_PASS", null));
        String target = getenv("TARGET_URL", "https://httpbin.org/ip");
        String base = getenv("PRIVATE_BASE", "http://s1.ip.16yun.cn:887").replaceAll("/+$", "");

        if (user == null || pass == null) {
            throw new IllegalArgumentException("Missing PRIVATE_USERNAME/PRIVATE_PASSWORD");
        }

        OkHttpClient http = new OkHttpClient();
        for (String path : new String[]{"current-ip", "switch-ip", "update"}) {
            String url = String.format("%s/simple/%s?username=%s&password=%s", base, path, user, pass);
            try (Response resp = http.newCall(new Request.Builder().url(url).build()).execute()) {
                System.out.println(path + " " + resp.code());
                System.out.println(resp.body() != null ? resp.body().string() : "");
            }
        }

        Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(host, port));
        OkHttpClient client = new OkHttpClient.Builder()
            .proxy(proxy)
            .proxyAuthenticator((route, response) ->
                response.request().newBuilder()
                    .header("Proxy-Authorization", Credentials.basic(user, pass))
                    .build())
            .build();

        try (Response resp = client.newCall(new Request.Builder().url(target).build()).execute()) {
            System.out.println(resp.code());
            System.out.println(resp.body() != null ? resp.body().string() : "");
        }
    }
}

适合什么情况

你已经在 Java 服务中使用 OkHttp
你要同时验证管理接口和代理访问
你需要先确认 Java 里的代理认证写法

运行前准备

示例代码

适合什么情况

相关入口