直接导入第三方jar

<dependency>
    <groupId>commons-httpclient</groupId>
    <artifactId>commons-httpclient</artifactId>
    <version>3.1</version>
</dependency>

工具类代码

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;

import java.io.IOException;

public class HttpClientHelper {
    public static String sendPost(String urlParam) throws HttpException, IOException {
        // 创建httpClient实例对象
        HttpClient httpClient = new HttpClient();
        // 设置httpClient连接主机服务器超时时间：15000毫秒
        httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(15000);
        // 创建post请求方法实例对象
        PostMethod postMethod = new PostMethod(urlParam);
        // 设置post请求超时时间
        postMethod.getParams().setParameter(HttpMethodParams.SO_TIMEOUT, 60000);
        postMethod.addRequestHeader("Content-Type", "application/json");

        httpClient.executeMethod(postMethod);

        String result = postMethod.getResponseBodyAsString();
        postMethod.releaseConnection();
        return result;
    }

    public static String sendGet(String urlParam) throws HttpException, IOException {
        // 创建httpClient实例对象
        HttpClient httpClient = new HttpClient();
        // 设置httpClient连接主机服务器超时时间：15000毫秒
        httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(15000);
        // 创建GET请求方法实例对象
        GetMethod getMethod = new GetMethod(urlParam);
        // 设置post请求超时时间
        getMethod.getParams().setParameter(HttpMethodParams.SO_TIMEOUT, 60000);
        getMethod.addRequestHeader("Content-Type", "application/json");

        httpClient.executeMethod(getMethod);

        String result = getMethod.getResponseBodyAsString();
        getMethod.releaseConnection();
        return result;
    }

    public static void main(String[] args) throws HttpException, IOException {
        String url = "http://int.dpool.sina.com.cn/iplookup/iplookup.php?ip=120.79.75.96";
        System.out.println(sendPost(url));
        System.out.println(sendGet(url));
    }
}

会出现一些没用的日志 设置日志的输出等级就OK了

logging.level.root=error