HttpUtils.doPost工具代码

package com.reptile.util.http;

import java.io.IOException;
import java.nio.charset.UnsupportedCharsetException;

import org.apache.http.HttpEntity;
import org.apache.http.ParseException;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class HttpUtils {
	
	
	
	  public static String httpClientPost(String url,String jsonData) {
	        String result;
			try {
				result = "";
				CloseableHttpClient client = HttpClients.createDefault();
				HttpPost httpPost=new HttpPost(url);
				StringEntity stringEntity=new StringEntity(jsonData, ContentType.APPLICATION_JSON);
				httpPost.setEntity(stringEntity);
				httpPost.addHeader("content-type", "application/json;chartset=UTF-8");
				RequestConfig config = RequestConfig.custom()
				        // 连接请求超时ms
				        .setConnectTimeout(1000)
				        // 连接超时时间ms
				        .setConnectionRequestTimeout(1000)
				        // 读取超时ms
				        .setSocketTimeout(10 * 1000).build();
				httpPost.setConfig(config);
				CloseableHttpResponse execute = client.execute(httpPost);
				HttpEntity entity = execute.getEntity();
				String content = EntityUtils.toString(entity, "utf-8");
				result = content;
				return result;
			} catch (UnsupportedCharsetException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (ClientProtocolException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (ParseException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
	        return null;
	    }
	
}

调用

pom.xml

<dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpcore</artifactId>
            <version>4.4.10</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient -->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.6</version>
        </dependency>

pom引入或jar引入，不论引入多少版本的，只要不报错，基本都可以使用