HttpClient库编写代码示例

HttpClient库编写一个下载程序，代码示例：

import org.apache.http.HttpHost;
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.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class HttpClientDownloader {

    public static void main(String[] args) {
        // 创建一个HttpClient对象
        CloseableHttpClient httpClient = HttpClients.createDefault();

        // 设置连接参数
        HttpHost proxy = new HttpHost("");
        RequestConfig config = RequestConfig.custom()
                .setProxy(proxy)
                .build();

        // 创建HttpGet对象，用于向目标URL发送请求
        HttpGet httpGet = new HttpGet("");

        // 设置请求配置，包括代理连接参数
        httpGet.setConfig(config);

       
        }
    }
}

这段代码首先创建了一个HttpClient对象，然后设置了连接参数，包括主机地址和端口。 然后创建了一个HttpGet对象，用于向目标URL发送请求，并设置请求配置，包括代理连接参数。