2019年女排世界杯_世界杯预选赛美洲区 - ilovechina365.com

一、导入依赖

org.apache.httpcomponents

httpcore

4.4.10

org.apache.httpcomponents

httpclient

4.5.5

com.alibaba

fastjson

1.2.54

二、工具类代码

感谢军哥提供！

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.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.BasicNameValuePair;

import org.apache.http.util.EntityUtils;

import java.io.IOException;

import java.net.URI;

import java.util.ArrayList;

import java.util.List;

import java.util.Map;

/**

* @author wenyanjun

* @date 2019/3/19

* @email simplyou@163.com

*/

public class HttpClientUtils {

public static String doGet(String url, Map param) {

// 创建Httpclient对象

CloseableHttpClient httpclient = HttpClients.createDefault();

String resultString = "";

CloseableHttpResponse response = null;

try {

// 创建uri

URIBuilder builder = new URIBuilder(url);

if (param != null) {

for (String key : param.keySet()) {

builder.addParameter(key, param.get(key).toString());

}

}

URI uri = builder.build();

// 创建http GET请求

HttpGet httpGet = new HttpGet(uri);

// 执行请求

response = httpclient.execute(httpGet);

// 判断返回状态是否为200

if (response.getStatusLine().getStatusCode() == 200) {

resultString = EntityUtils.toString(response.getEntity(), "UTF-8");

}

} catch (Exception e) {

e.printStackTrace();

} finally {

try {

if (response != null) {

response.close();

}

httpclient.close();

} catch (IOException e) {

e.printStackTrace();

}

}

return resultString;

}

public static String doGet(String url) {

return doGet(url, null);

}

public static String doPost(String url, Map param) {

// 创建Httpclient对象

CloseableHttpClient httpClient = HttpClients.createDefault();

CloseableHttpResponse response = null;

String resultString = "";

try {

// 创建Http Post请求

HttpPost httpPost = new HttpPost(url);

// 创建参数列表

if (param != null) {

List paramList = new ArrayList<>();

for (String key : param.keySet()) {

paramList.add(new BasicNameValuePair(key, param.get(key)));

}

// 模拟表单

UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList,"utf-8");

httpPost.setEntity(entity);

}

// 执行http请求

response = httpClient.execute(httpPost);

resultString = EntityUtils.toString(response.getEntity(), "utf-8");

} catch (Exception e) {

e.printStackTrace();

} finally {

try {

assert response != null;

response.close();

} catch (IOException e) {

e.printStackTrace();

}

}

return resultString;

}

public static String doPost(String url) {

return doPost(url, null);

}

public static String doPostJson(String url, String json) {

// 创建Httpclient对象

CloseableHttpClient httpClient = HttpClients.createDefault();

CloseableHttpResponse response = null;

String resultString = "";

try {

// 创建Http Post请求

HttpPost httpPost = new HttpPost(url);

// 创建请求内容

StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);

httpPost.setEntity(entity);

// 执行http请求

response = httpClient.execute(httpPost);

resultString = EntityUtils.toString(response.getEntity(), "utf-8");

} catch (Exception e) {

e.printStackTrace();

} finally {

try {

response.close();

} catch (IOException e) {

e.printStackTrace();

}

}

return resultString;

}

}

三、测试请求

@Test

void test2(){

String url="https://api.weixin.qq.com/cgi-bin/token";

HashMap map = new HashMap<>();

map.put("grant_type","client_credential");

map.put("appid", ParamUtils.APPID);

map.put("secret",ParamUtils.SECRET);

String s = HttpClientUtils.doGet(url, map);

}

四、打印结果

{“access_token”:“33_tHSWuUz35Q6JMJs_JzfvToFgr25w16ogXwFrjcFxmOQ7kSVsdAQ8cf5IA5LNwF78cZs1EI9XE5lWZQbgzLEzTjs3OvApLEoAKRsWh34Tq7uJEfyG_3mEgHT7qfY-4cM3-Gf9rZQ56ah57rk4XWUiABASRP”,“expires_in”:7200}

做个宣传

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