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API接口代码示例（Java）

更新时间： 2023-09-06 13:50:51

[TOC]

本文档包含调用小象代理API的代码样例，供开发者参考。

> 代码样例直接运行无法得到正确的结果，因为代码中的API链接和应用账号密码等信息都是虚构的，您替换成自己真实的就可以正常运行了。
使用代码样例过程中遇到问题请联系售后客服，我们会为您提供技术支持。

## Java

### httpclient

[代码下载（gitee）](https://gitee.com/xiaoxiangdaili/java-demo/blob/master/src/main/java/api/HttpClient45Demo.java "代码下载（gitee）")

```java
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.HttpHost;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.config.SocketConfig;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.client.HttpClients;

import java.io.IOException;

/**
 * 小象代理短效代理IP示例 - JAVA，类库 httpclient
 *
 * @author xxdl
 */
public class HttpClient45Demo {

// 应用账号（请替换为真实账号）
    private static String appKey = "appKey";
    // 应用密码（请替换为真实密码）
    private static String appSecret = "appSecret";

private static String api = "https://api.xiaoxiangdaili.com/ip/get?appKey=%s&appSecret=%s&cnt=1&wt=text";
    private static int timeout = 10000;

private static HttpClientBuilder clientBuilder = null;

static {
        // JDK 8u111版本后，目标页面为HTTPS协议，启用proxy用户密码鉴权
        System.setProperty("jdk.http.auth.tunneling.disabledSchemes", "");

SocketConfig socketConfig = SocketConfig.custom().setSoTimeout(timeout).build();

CredentialsProvider credsProvider = new BasicCredentialsProvider();
        credsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(appKey, appSecret));

clientBuilder = HttpClients.custom()
                .disableAutomaticRetries()
                .setDefaultSocketConfig(socketConfig)
                .setDefaultCredentialsProvider(credsProvider);
    }

private static HttpHost getProxy() throws IOException {
        CloseableHttpResponse httpResp = null;
        try {
            RequestConfig requestConfig = RequestConfig.custom()
                    .setConnectionRequestTimeout(timeout)
                    .setConnectTimeout(timeout)
                    .setSocketTimeout(timeout)
                    .setExpectContinueEnabled(false)
                    .setProxy(null)
                    .build();

HttpClientContext localContext = HttpClientContext.create();
            HttpGet httpReq = new HttpGet(String.format(api, appKey, appSecret));
            httpResp = clientBuilder
                    .setDefaultRequestConfig(requestConfig)
                    .build().execute(httpReq, localContext);

if (httpResp.getStatusLine().getStatusCode() == 200) {
                String content = IOUtils.toString(httpResp.getEntity().getContent(), "UTF-8");
                System.out.println("API response: " + content);
                if (!StringUtils.isEmpty(content)) {
                    String[] splits = content.split(":");
                    if (splits.length == 2) {
                        return new HttpHost(splits[0], Integer.parseInt(splits[1]));
                    }
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            httpResp.close();
        }
        return null;
    }

public static void getUrlContent(String url) throws IOException {
        CloseableHttpResponse httpResp = null;
        try {
            HttpHost proxy = getProxy();
            RequestConfig requestConfig = RequestConfig.custom()
                    .setConnectionRequestTimeout(timeout)
                    .setConnectTimeout(timeout)
                    .setSocketTimeout(timeout)
                    .setExpectContinueEnabled(false)
                    .setProxy(proxy)
                    .build();

HttpClientContext localContext = HttpClientContext.create();
            httpResp = clientBuilder
                    .setDefaultRequestConfig(requestConfig)
                    .build().execute(new HttpGet(url), localContext);
            String content = IOUtils.toString(httpResp.getEntity().getContent(), "UTF-8");
            System.out.println("Target response：" + content);

} catch (IOException e) {
            e.printStackTrace();
        } finally {
            httpResp.close();
        }

}

public static void main(String[] args) throws Exception {
        // 要访问的目标页面
        String targetUrl = "http://httpbin.org/ip";
        for (int i = 0; i < 5; i++) {
            getUrlContent(targetUrl);
            Thread.sleep(10000);
        }
    }
}
```

------------

### jsoup

[代码下载（gitee）](https://gitee.com/xiaoxiangdaili/java-demo/blob/master/src/main/java/api/JsoupDemo.java "代码下载（gitee）")

```java
import org.apache.commons.lang3.StringUtils;
import org.jsoup.Connection;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;

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

/**
 * 小象代理短效代理IP示例 - JAVA，类库 jsoup
 *
 * @author xxdl
 */
public class JsoupDemo {

// 应用账号（请替换为真实账号）
    private static String appKey = "appKey";
    // 应用密码（请替换为真实密码）
    private static String appSecret = "appSecret";

private static String api = "https://api.xiaoxiangdaili.com/ip/get?appKey=%s&appSecret=%s&cnt=1&wt=text";
    private static int timeout = 10000;

private static Proxy getProxy() {
        try {
            Document doc = Jsoup.connect(String.format(api, appKey, appSecret)).ignoreContentType(true).get();

if (doc != null) {
                String content = doc.text();
                System.out.println("API response: " + content);
                if (!StringUtils.isEmpty(content)) {
                    String[] splits = content.split(":");
                    if (splits.length == 2) {
                        return new Proxy(Proxy.Type.HTTP, new InetSocketAddress(splits[0], Integer.parseInt(splits[1])));
                    }
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }

public static void getUrlContent(String url) {
        Authenticator.setDefault(new Authenticator() {
            public PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(appKey, appSecret.toCharArray());
            }
        });

try {
            Connection connect = Jsoup.connect(url).timeout(timeout).ignoreContentType(true);
            connect.proxy(getProxy());
            Document document = connect.get();
            System.out.println("Target response：" + document.text());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

public static void main(String[] args) throws Exception {
        // 要访问的目标页面
        String targetUrl = "https://httpbin.org/ip";
        for (int i = 0; i < 5; i++) {
            getUrlContent(targetUrl);
            Thread.sleep(10000);
        }
    }
}
```

------------

### okhttp

[代码下载（gitee）](https://gitee.com/xiaoxiangdaili/java-demo/blob/master/src/main/java/api/OkHttpDemo.java "代码下载（gitee）")

```java
import okhttp3.*;
import org.apache.commons.lang3.StringUtils;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.util.concurrent.TimeUnit;

/**
 * 小象代理短效代理IP示例 - JAVA，类库 okhttp
 *
 * @author xxdl
 */
public class OkHttpDemo {
    // 应用账号（请替换为真实账号）
    private static String appKey = "appKey";
    // 应用密码（请替换为真实密码）
    private static String appSecret = "appSecret";

private static String api = "https://api.xiaoxiangdaili.com/ip/get?appKey=%s&appSecret=%s&cnt=1&wt=text";
    private static int timeout = 10000;

static Authenticator proxyAuthenticator = null;

static {
        proxyAuthenticator = new Authenticator() {
            public Request authenticate(Route route, Response response) {
                String credential = Credentials.basic(appKey, appSecret);
                return response.request().newBuilder()
                        .header("Proxy-Authorization", credential)
                        .build();
            }
        };
    }

private static Proxy getProxy() {
        try {
            Request request = new Request.Builder()
                    .url(String.format(api, appKey, appSecret))
                    .build();
            Response response = new OkHttpClient().newBuilder().build()
                .newCall(request).execute();
            String content = response.body().string();
            System.out.println("API response: " + content);
            if (!StringUtils.isEmpty(content)) {
                String[] splits = content.split(":");
                if (splits.length == 2) {
                    return new Proxy(Proxy.Type.HTTP, new InetSocketAddress(splits[0], Integer.parseInt(splits[1])));
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }

public static void getUrlContent(String url) throws IOException {
        Request request = new Request.Builder()
                .url(url)
                .build();
        try {
            Response response = new OkHttpClient().newBuilder()
                    .proxy(getProxy())
                    .connectTimeout(timeout, TimeUnit.MILLISECONDS)
                    .writeTimeout(timeout, TimeUnit.MILLISECONDS)
                    .readTimeout(timeout, TimeUnit.MILLISECONDS)
                    .proxyAuthenticator(proxyAuthenticator)
                    .build()
                    .newCall(request).execute();
            System.out.println("Target response：" + response.body().string());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

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