HTTPUTILS

maven依赖

<dependency>

			<groupId>org.apache.httpcomponents</groupId>

			<artifactId>httpclient</artifactId>

			<version>4.5.6</version>

		</dependency>

		<!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->

		<dependency>

			<groupId>com.alibaba</groupId>

			<artifactId>fastjson</artifactId>

			<version>1.2.47</version>

		</dependency>

　　

工具类

package com.yyjdemo.shardingjdbc.http;

import com.alibaba.fastjson.JSONObject;

import org.apache.http.HttpEntity;

import org.apache.http.NameValuePair;

import org.apache.http.client.entity.UrlEncodedFormEntity;

import org.apache.http.client.methods.CloseableHttpResponse;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.client.methods.HttpPost;

import org.apache.http.client.utils.URIBuilder;

import org.apache.http.entity.StringEntity;

import org.apache.http.impl.client.CloseableHttpClient;

import org.apache.http.impl.client.HttpClients;

import org.apache.http.message.BasicNameValuePair;

import org.apache.http.params.HttpParams;

import org.apache.http.protocol.HTTP;

import org.apache.http.util.EntityUtils;

import java.io.IOException;

import java.util.ArrayList;

import java.util.List;

public class HttpUtils {

    public static void main(String[] args) throws IOException {

        JSONObject jsonObject = new JSONObject();

        jsonObject.put("id","1");

//        String httppost = httppost("http://127.0.0.1:8080/jdbc/testpost",jsonObject);

//        System.out.println(httppost);

//        String httppost = httppostjson("http://127.0.0.1:8080/jdbc/testpostjson",jsonObject);

        String httppost = httpget("http://127.0.0.1:8080/jdbc/test",jsonObject);

    }

    public static String httpget(String url, JSONObject jsonObject) {

        try {

            URIBuilder uriBuilder = new URIBuilder(url);

            if(!jsonObject.isEmpty()){

                jsonObject.forEach((k,v)->{

                    uriBuilder.addParameter(k,v.toString());

                });

            }

            HttpGet httpget = new HttpGet(uriBuilder.toString());

            try(CloseableHttpClient httpclient = HttpClients.createDefault();

                CloseableHttpResponse execute = httpclient.execute(httpget);){

                HttpEntity entity = execute.getEntity();

                String s = EntityUtils.toString(entity);

                return s;

            }

        }catch (Exception e){

            e.printStackTrace();

        }

     return null;

    }

    public static String httppostjson(String url, JSONObject jsonObject) {

        try {

            HttpPost httpPost = new HttpPost(url);

            httpPost.addHeader(HTTP.CONTENT_TYPE,"application/json");

            StringEntity stringEntity = new StringEntity(jsonObject.toString(),"utf-8");

            httpPost.setEntity(stringEntity);

            try(CloseableHttpClient httpclient = HttpClients.createDefault();

                CloseableHttpResponse execute = httpclient.execute(httpPost);){

                HttpEntity entity = execute.getEntity();

                String s = EntityUtils.toString(entity);

                return s;

            }

        }catch (Exception e){

            e.printStackTrace();

        }

        return null;

    }

    private static String httppost(String url,JSONObject jsonObject){

        try {

            HttpPost httpPost = new HttpPost(url);

            List<NameValuePair> objects = new ArrayList<>();

            jsonObject.forEach((k,v)->{

                BasicNameValuePair basicNameValuePair = new BasicNameValuePair(k, v.toString());

                objects.add(basicNameValuePair);

            });

            StringEntity stringEntity = new UrlEncodedFormEntity(objects,"utf-8");

            httpPost.setEntity(stringEntity);

            try(CloseableHttpClient httpclient = HttpClients.createDefault();

                CloseableHttpResponse execute = httpclient.execute(httpPost);){

                HttpEntity entity = execute.getEntity();

                String s = EntityUtils.toString(entity);

                return s;

        }

        }catch (Exception e){

            e.printStackTrace();

        }

        return null;

    }

}