httpclient 带参数 get 请求

httpclient带参数get请求和默认get请求的主要区别是要初始化HttpGet的方式

默认的get请求初始化HttpGet的方式是new HttpGet("http://www.baidu.com/s?wd=java");

示例：

package com._656463.httpclient;
 
import java.net.URI;
 
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
 
/**
 * httpclient 带参数get请求
 */
public class DoGETParam {
    public static void main(String[] args) throws Exception {
        // 创建Httpclient对象
        CloseableHttpClient httpclient = HttpClients.createDefault();
        // 定义请求的参数
        URI uri = new URIBuilder("http://www.baidu.com/s").setParameter("wd",
                "java").build();
        System.out.println(uri);
        // 创建http GET请求
        HttpGet httpGet = new HttpGet(uri);
 
        CloseableHttpResponse response = null;
        try {
            // 执行请求
            response = httpclient.execute(httpGet);
            // 判断返回状态是否为200
            if (response.getStatusLine().getStatusCode() == 200) {
                String content = EntityUtils.toString(response.getEntity(),
                        "UTF-8");
                System.out.println(content);
            }
        } finally {
            if (response != null) {
                response.close();
            }
            httpclient.close();
        }
    }
}

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