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1、maven配置

         
    
     org.apache.httpcomponents
          
    
     httpcore
          
    
     4.2.1
        
           
         
    
     org.apache.httpcomponents
          
    
     httpclient
          
    
     4.2.1
        
   

2、2个类，直接可用

import java.security.cert.CertificateException;import java.security.cert.X509Certificate; import javax.net.ssl.SSLContext;import javax.net.ssl.TrustManager;import javax.net.ssl.X509TrustManager; import org.apache.http.conn.ClientConnectionManager;import org.apache.http.conn.scheme.Scheme;import org.apache.http.conn.scheme.SchemeRegistry;import org.apache.http.conn.ssl.SSLSocketFactory;import org.apache.http.impl.client.DefaultHttpClient; //用于进行Https请求的HttpClient  public class SSLClient extends DefaultHttpClient {	public SSLClient() throws Exception {		super();		SSLContext ctx = SSLContext.getInstance("TLS");		X509TrustManager tm = new X509TrustManager() {			@Override			public void checkClientTrusted(X509Certificate[] chain,					String authType) throws CertificateException {			} 			@Override			public void checkServerTrusted(X509Certificate[] chain,					String authType) throws CertificateException {			} 			@Override			public X509Certificate[] getAcceptedIssuers() {				return null;			}		};		ctx.init(null, new TrustManager[] { tm }, null);		SSLSocketFactory ssf = new SSLSocketFactory(ctx, SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);		ClientConnectionManager ccm = this.getConnectionManager();		SchemeRegistry sr = ccm.getSchemeRegistry();		sr.register(new Scheme("https", 443, ssf));	}}

import java.util.ArrayList;import java.util.Iterator;import java.util.List;import java.util.Map;import java.util.Map.Entry; 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.HttpPost;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils; /*  * 利用HttpClient进行post请求的工具类  */public class HttpClientUtil {	public static String doPost(String url, Map
   
     map, String charset) {		HttpClient httpClient = null;		HttpPost httpPost = null;		String result = null;		try {			httpClient = new SSLClient();			httpPost = new HttpPost(url);			// 设置参数			List
    
      list = new ArrayList
     
      ();			Iterator iterator = map.entrySet().iterator();			while (iterator.hasNext()) {				Entry
      
        elem = (Entry
       
        ) iterator						.next();				list.add(new BasicNameValuePair(elem.getKey(), elem.getValue()));			}			if (list.size() > 0) {				UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, charset);				//entity.setContentType("application/json");	            //httpPost.setHeader("Accept", "application/json");	            //httpPost.setHeader("Content-type", "application/json;charset=utf-8");				httpPost.setEntity(entity);			}			HttpResponse response = httpClient.execute(httpPost);			if (response != null) {				HttpEntity resEntity = response.getEntity();				if (resEntity != null) {					result = EntityUtils.toString(resEntity, charset);				}			}		} catch (Exception ex) {			ex.printStackTrace();		}		return result;	}}
       
      
     
    
   

3、测试

String urlAsk = "https://localhost:8080/service"; 		String charset = "utf-8";				Map
   
     map = new HashMap<>();        map.put("aaa", "100");		String strResponse = HttpClientUtil.doPost(urlAsk, mapPost, charset);
   

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