HttpClient发送GET、POST、PUT、DELETE请求

pom依赖

    org.apache.httpcomponents
    httpclient
    4.5.6


    org.apache.httpcomponents
    httpcore
    4.4.10


    org.apache.httpcomponents
    httpmime
    4.5.6

代码

package com.framework.utils;

/**
 * @Author: Yilia
 * @Date: 2020/4/22/
 */

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

import org.apache.http.HttpEntity;
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.HttpDelete;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class HttpRequestUtil {


    /**
     * get
     * @param url 
     * @param token 未使用
     * @return
     */
    public static String doGet(String url, String token) {

        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpGet httpGet = new HttpGet(url);
        httpGet.setHeader("Content-type", "application/json");
        httpGet.setHeader("Accept", "application/json");
        httpGet.setHeader("DataEncoding", "UTF-8");
//        httpGet.setHeader("token", token);
        RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(35000).setConnectionRequestTimeout(35000).setSocketTimeout(60000).build();
        httpGet.setConfig(requestConfig);

        CloseableHttpResponse httpResponse = null;
        try {
            httpResponse = httpClient.execute(httpGet);
            HttpEntity entity = httpResponse.getEntity();
            String result = EntityUtils.toString(entity);
            return result;
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            if (httpResponse != null) {
                try {
                    httpResponse.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            if (null != httpClient) {
                try {
                    httpClient.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return null;
    }

    /**
     * post
     * @param url
     * @param token 未使用
     * @param jsonStr
     * @return
     */
    public static String doPost(String url, String token, String jsonStr) {

        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpPost httpPost = new HttpPost(url);
        RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(35000).setConnectionRequestTimeout(35000).setSocketTimeout(60000).build();
        httpPost.setConfig(requestConfig);
        httpPost.setHeader("Content-type", "application/json; charset=utf-8");
        httpPost.setHeader("Accept", "application/json");
        httpPost.setHeader("DataEncoding", "UTF-8");
//        httpPost.setHeader("token", token);

        CloseableHttpResponse httpResponse = null;
        try {
            httpPost.setEntity(new StringEntity(jsonStr.toString(), Charset.forName("UTF-8")));
//            httpPost.setEntity(new StringEntity(jsonStr));
            httpResponse = httpClient.execute(httpPost);
            HttpEntity entity = httpResponse.getEntity();
            String result = EntityUtils.toString(entity);
            return result;
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            if (httpResponse != null) {
                try {
                    httpResponse.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            if (null != httpClient) {
                try {
                    httpClient.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return null;
    }

    /**
     * put
     * @param url
     * @param token 未使用
     * @param jsonStr
     * @return
     */
    public static String doPut(String url, String token, String jsonStr) {

        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpPut httpPut = new HttpPut(url);
        RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(35000).setConnectionRequestTimeout(35000).setSocketTimeout(60000).build();
        httpPut.setConfig(requestConfig);
        httpPut.setHeader("Content-type", "application/json");
        httpPut.setHeader("Accept", "application/json");
        httpPut.setHeader("DataEncoding", "UTF-8");
//        httpPut.setHeader("token", token);

        CloseableHttpResponse httpResponse = null;
        try {
            httpPut.setEntity(new StringEntity(jsonStr.toString(), Charset.forName("UTF-8")));
            httpResponse = httpClient.execute(httpPut);
            HttpEntity entity = httpResponse.getEntity();
            String result = EntityUtils.toString(entity);
            return result;
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            if (httpResponse != null) {
                try {
                    httpResponse.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            if (null != httpClient) {
                try {
                    httpClient.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return null;
    }

    /**
     * delete
     * @param url
     * @param token 未使用
     * @param jsonStr
     * @return
     */
    public static String doDelete(String url, String token, String jsonStr) {

        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpDelete httpDelete = new HttpDelete(url);
        RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(35000).setConnectionRequestTimeout(35000).setSocketTimeout(60000).build();
        httpDelete.setConfig(requestConfig);
        httpDelete.setHeader("Content-type", "application/json");
        httpDelete.setHeader("Accept", "application/json");
        httpDelete.setHeader("DataEncoding", "UTF-8");
//        httpDelete.setHeader("token", token);

        CloseableHttpResponse httpResponse = null;
        try {
            httpResponse = httpClient.execute(httpDelete);
            HttpEntity entity = httpResponse.getEntity();
            String result = EntityUtils.toString(entity);
            return result;
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            if (httpResponse != null) {
                try {
                    httpResponse.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            if (null != httpClient) {
                try {
                    httpClient.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return null;
    }
}

POST中文乱码：

httpPost.setEntity(new StringEntity(jsonStr.toString(), Charset.forName("UTF-8")));

json字符串编码