HttpComponentsDemo.java

package com.itwanger.http;

import org.apache.hc.client5.http.classic.methods.HttpPost;
import org.apache.hc.client5.http.entity.UrlEncodedFormEntity;
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
import org.apache.hc.client5.http.impl.classic.CloseableHttpResponse;
import org.apache.hc.client5.http.impl.classic.HttpClients;
import org.apache.hc.core5.http.HttpEntity;
import org.apache.hc.core5.http.NameValuePair;
import org.apache.hc.core5.http.ParseException;
import org.apache.hc.core5.http.io.entity.EntityUtils;
import org.apache.hc.core5.http.message.BasicNameValuePair;

import java.io.IOException;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;

/**
 * @author 微信搜「沉默王二」，回复关键字 Java
 */
public class HttpComponentsDemo {
    public static void main(String[] args) throws IOException, IOException, ParseException {
        try (CloseableHttpClient httpclient = HttpClients.createDefault()) {
            HttpPost httpPost = new HttpPost("http://httpbin.org/post");
            List<NameValuePair> nvps = new ArrayList<>();
            nvps.add(new BasicNameValuePair("name", "二哥"));
            httpPost.setEntity(new UrlEncodedFormEntity(nvps, Charset.forName("UTF-8")));

            try (CloseableHttpResponse response2 = httpclient.execute(httpPost)) {
                System.out.println(response2.getCode() + " " + EntityUtils.toString(response2.getEntity()));
            }
        }
    }
}