httpclient get请求和post请求

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.12</version>
        </dependency>

package com.dp.util;

import com.alibaba.fastjson.JSON;
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.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import java.io.IOException;
import java.util.List;
import java.util.Map;

import static cn.hutool.crypto.SecureUtil.sha256;


public class LbHttpUtils {

    /**
     * 无参get请求
     * @param url
     */
    public static void getMethod(String url, Map<String,Object> map) {
        CloseableHttpClient httpClient = HttpClientBuilder.create().build();
        HttpGet httpGet = new HttpGet(url);
        CloseableHttpResponse response = null;
        try {
            response = httpClient.execute(httpGet);
            HttpEntity responseEntity = response.getEntity();
            System.out.println("响应状态为:" + response.getStatusLine());
            if (responseEntity != null) {
                System.out.println("响应内容长度为:" + responseEntity.getContentLength());
                System.out.println("响应内容为:" + EntityUtils.toString(responseEntity));
            }
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (ParseException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                // 释放资源
                if (httpClient != null) {
                    httpClient.close();
                }
                if (response != null) {
                    response.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    public static void getMethods(String url,String userName,String password) {
        CloseableHttpClient httpClient = HttpClientBuilder.create().build();
        String temp = sha256(password).toUpperCase();
        String secretPassword= sha256("CRCLDAP+" + userName + "+" + temp ).toUpperCase();
        System.out.println(temp+"_______"+secretPassword);
        HttpGet httpGet = new HttpGet(url + "?password="+secretPassword+"&userName="+userName);
        CloseableHttpResponse response = null;
        try {
            RequestConfig requestConfig = RequestConfig.custom()
                    // 设置连接超时时间(单位毫秒)
                    .setConnectTimeout(5000)
                    // 设置请求超时时间(单位毫秒)
                    .setConnectionRequestTimeout(5000)
                    // socket读写超时时间(单位毫秒)
                    .setSocketTimeout(5000)
                    // 设置是否允许重定向(默认为true)
                    .setRedirectsEnabled(true).build();
            // 将上面的配置信息 运用到这个Get请求里
            httpGet.setConfig(requestConfig);
            response = httpClient.execute(httpGet);
            HttpEntity responseEntity = response.getEntity();
            System.out.println("响应状态为:" + response.getStatusLine());
            if (responseEntity != null) {
                System.out.println("响应内容长度为:" + responseEntity.getContentLength());
                System.out.println("响应内容为:" + EntityUtils.toString(responseEntity));
            }
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (ParseException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                // 释放资源
                if (httpClient != null) {
                    httpClient.close();
                }
                if (response != null) {
                    response.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    public static void postMethod(String url){
        CloseableHttpClient httpClient = HttpClientBuilder.create().build();
        HttpPost httpPost = new HttpPost(url);
        CloseableHttpResponse response = null;
        try {
            response = httpClient.execute(httpPost);
            HttpEntity entity = response.getEntity();
            System.out.println("响应状态为:" + response.getStatusLine());
            if (response != null) {
                System.out.println("响应内容长度为:" + entity.getContentLength());
                System.out.println("响应内容为:" + EntityUtils.toString(entity));
            }
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (ParseException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                // 释放资源
                if (httpClient != null) {
                    httpClient.close();
                }
                if (response != null) {
                    response.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    public static void postMethods(String url, List<Map<String,Object>> list,String token){
        CloseableHttpClient httpClient = HttpClientBuilder.create().build();
        HttpPost httpPost = new HttpPost(url);
        String jsonString = JSON.toJSONString(list);
        StringEntity entity = new StringEntity(jsonString, "UTF-8");
        // post请求是将参数放在请求体里面传过去的;这里将entity放入post请求体中
        httpPost.setEntity(entity);
        httpPost.setHeader("Content-Type", "application/json;charset=utf8");
        httpPost.setHeader("Authorization",token);
        CloseableHttpResponse response = null;
        try {
            response = httpClient.execute(httpPost);
            HttpEntity httpEntity = response.getEntity();
            System.out.println("响应状态为:" + response.getStatusLine());
            if (response != null) {
                System.out.println("响应内容长度为:" + httpEntity.getContentLength());
                System.out.println("响应内容为:" + EntityUtils.toString(httpEntity));
            }
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (ParseException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                // 释放资源
                if (httpClient != null) {
                    httpClient.close();
                }
                if (response != null) {
                    response.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }


}