HttpUtil

package com.cmb.utils;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpHeaders;
import org.apache.http.client.config.RequestConfig;
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.entity.ContentType;
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.BasicHeader;
import org.junit.rules.Timeout;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@Component
public class HttpUtil {
    private CloseableHttpClient httpClient;
    private static RequestConfig requestConfig;
    private static final int HTTP_CONNECTION_TIMEOUT_DEFAULT = 2000;
    private static final int HTTP_RESPONSE_TIMEOUT_DEFAULT = 2000;
    private static List
 headers;

    static{
        requestConfig = RequestConfig.custom()
                //设置连接超时时间
                .setConnectTimeout(HTTP_CONNECTION_TIMEOUT_DEFAULT)
                //设置相应的超时时间
                .setSocketTimeout(HTTP_RESPONSE_TIMEOUT_DEFAULT)
                .build();
        headers = new ArrayList<>();
        headers.add(new BasicHeader(HttpHeaders.CONTENT_TYPE, "application/json;charset=utf-8"));
        headers.add(new BasicHeader(HttpHeaders.ACCEPT_ENCODING, "gzip, x-gzip, deflate"));
        headers.add(new BasicHeader(HttpHeaders.CONNECTION, "keep-alive"));
    }
    @PostConstruct
    public void init(){
//        httpClient = HttpClients.createDefault();
        httpClient = HttpClients.custom()
                .setDefaultHeaders(headers)
                .setDefaultRequestConfig(requestConfig)
                .build();
    }


    public CloseableHttpResponse getRequest(String uri) throws IOException {
        HttpGet httpGet = new HttpGet(uri);
        CloseableHttpResponse response = httpClient.execute(httpGet);
        return response;
    }

    public CloseableHttpResponse postRequest(String uri,Object javaBean) throws IOException {
        HttpPost httpPost = new HttpPost(uri);
        ObjectMapper mapper = new ObjectMapper();
        String jsonStr = mapper.writeValueAsString(javaBean);
        StringEntity entity = new StringEntity(jsonStr);
        httpPost.setEntity(entity);
        CloseableHttpResponse response = httpClient.execute(httpPost);
        return response;
    }

    public static void main(String[] args) {
        Map map = new HashMap<>();
        map.put("name","wfl");
        String uri = "http://127.0.0.1:8080/test/post";
        try{
            HttpUtil httpUtil = new HttpUtil();
            CloseableHttpResponse response = httpUtil.postRequest(uri,map);
            if("200".equals(response.getStatusLine())){
                System.out.println("请求成功");
                HttpEntity httpEntity = response.getEntity();
                System.out.println("相应内容为"+httpEntity.getContent());
            }
        }catch (Exception e){
            System.out.println("发送post请求时异常");
        }

    }

}

http工具类