HTTP Client ，post与get工具包

需要的jar包

<dependency>
  <groupId>org.apache.httpcomponents</groupId>
  <artifactId>httpclient</artifactId>
  <version>4.4</version>
</dependency>
<dependency>
  <groupId>org.apache.httpcomponents</groupId>
  <artifactId>httpmime</artifactId>
  <version>4.4</version>
</dependency>
<dependency>
  <groupId>net.sf.json-lib</groupId>
  <artifactId>json-lib</artifactId>
  <version>2.4</version>
  <classifier>jdk15</classifier>
</dependency>

类一：

package im.qingtui.springbootdemo.utill;

import net.sf.json.JSONObject;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
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.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.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

public class HttpClientUtils {

    public static JSONObject Get(String path, Map<String, Object> queryParams) throws IOException {
        HttpClient httpclient = HttpClientMng.getClient();
        Iterator<String> iter = queryParams.keySet().iterator();
        String temp = path + "?";
        while (iter.hasNext()) {
            String key = iter.next();
            temp = temp + key + "=" + queryParams.get(key) + "&";
        }
        String url = temp.substring(0, temp.lastIndexOf("&"));
        HttpGet httpget = new HttpGet(url);
        HttpResponse response = httpclient.execute(httpget);
        HttpEntity entity = response.getEntity();
        String result = EntityUtils.toString(entity);
        EntityUtils.consume(entity);
        JSONObject jsonObject = JSONObject.fromObject(result);
        return jsonObject;
    }

    public static JSONObject Post(String path, String token, String open_id)
        throws IOException {
        CloseableHttpClient httpClient=null;
        try {
            String urlPath = path + "?access_token=" + token;
            httpClient= HttpClients.createDefault();
            HttpPost httpPost=new HttpPost(urlPath);

            //添加传入参数
            List<NameValuePair> pair=new ArrayList<NameValuePair>();
            pair.add(new BasicNameValuePair("open_id", open_id));
            UrlEncodedFormEntity entity= new  UrlEncodedFormEntity (pair,"utf-8");
            httpPost.setEntity(entity);

            //发送相应数据
            CloseableHttpResponse reseponse=httpClient.execute(httpPost);
            HttpEntity res=reseponse.getEntity();
            BufferedReader reader=new BufferedReader(new InputStreamReader(res.getContent(),"UTF-8"));
            String result="";
            String line;
            while((line=reader.readLine()) != null){
                result+=line;
            }
            JSONObject jsonObject = JSONObject.fromObject(result);
            return jsonObject;
        } catch (Exception e){
            e.printStackTrace();
        }
        return null;
    }
}

类二：

package im.qingtui.springbootdemo.utill;

import org.apache.http.client.HttpClient;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLContextBuilder;
import org.apache.http.conn.ssl.TrustStrategy;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLContext;
import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;

public class HttpClientMng {

    private static HttpClient client = null;

    public static HttpClient getClient() {
        getTrustedhttpclient();
        return client;
    }

    @SuppressWarnings("deprecation")
    private static synchronized void getTrustedhttpclient() {
        try {
            if (client == null) {
                HttpClientBuilder b = HttpClientBuilder.create();
                // 策略：允许加载所有证书
                SSLContext sslContext = null;
                sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {
                    @Override
                    public boolean isTrusted(java.security.cert.X509Certificate[] arg0, String arg1)
                        throws java.security.cert.CertificateException {
                        return true;
                    }
                }).build();
                b.setSslcontext(sslContext);
                // 不检测主机名
                HostnameVerifier hostnameVerifier = SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER;
                // 创建SSLSocketFactory来加载配置
                SSLConnectionSocketFactory sslSocketFactory = new SSLConnectionSocketFactory(sslContext,
                    hostnameVerifier);
                Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder
                    .<ConnectionSocketFactory>create()
                    .register("http", PlainConnectionSocketFactory.getSocketFactory())
                    .register("https", sslSocketFactory).build();
                // 创建connection-manager，配置Registry。支持多线程的使用
                PoolingHttpClientConnectionManager connMgr = new PoolingHttpClientConnectionManager(
                    socketFactoryRegistry);
                b.setConnectionManager(connMgr);
                // 构建HttpClient
                client = b.build();
            }
        } catch (KeyManagementException e) {
            e.printStackTrace();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (KeyStoreException e) {
            e.printStackTrace();
        }
    }

}