content: package com.aliyun.api.gateway.demo.util;
  
  import java.io.UnsupportedEncodingException;
  import java.net.URLEncoder;
  import java.security.KeyManagementException;
  import java.security.NoSuchAlgorithmException;
  import java.security.cert.X509Certificate;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Map;
  
  import javax.net.ssl.SSLContext;
  import javax.net.ssl.TrustManager;
  import javax.net.ssl.X509TrustManager;
  
  import org.apache.commons.lang.StringUtils;
  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.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.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.entity.ByteArrayEntity;
  import org.apache.http.entity.StringEntity;
  import org.apache.http.impl.client.DefaultHttpClient;
  import org.apache.http.message.BasicNameValuePair;
  
  public class HttpUtils {
  	
  	/**
  	 * get
  	 * 
  	 * @param host
  	 * @param path
  	 * @param method
  	 * @param headers
  	 * @param querys
  	 * @return
  	 * @throws Exception
  	 */
  	public static HttpResponse doGet(String host, String path, String method, 
  			Map<String, String> headers, 
  			Map<String, String> querys)
              throws Exception {    	
      	HttpClient httpClient = wrapClient(host);
  
      	HttpGet request = new HttpGet(buildUrl(host, path, querys));
          for (Map.Entry<String, String> e : headers.entrySet()) {
          	request.addHeader(e.getKey(), e.getValue());
          }
          
          return httpClient.execute(request);
      }
  	
  	/**
  	 * post form
  	 * 
  	 * @param host
  	 * @param path
  	 * @param method
  	 * @param headers
  	 * @param querys
  	 * @param bodys
  	 * @return
  	 * @throws Exception
  	 */
  	public static HttpResponse doPost(String host, String path, String method, 
  			Map<String, String> headers, 
  			Map<String, String> querys, 
  			Map<String, String> bodys)
              throws Exception {    	
      	HttpClient httpClient = wrapClient(host);
  
      	HttpPost request = new HttpPost(buildUrl(host, path, querys));
          for (Map.Entry<String, String> e : headers.entrySet()) {
          	request.addHeader(e.getKey(), e.getValue());
          }
  
          if (bodys != null) {
              List<NameValuePair> nameValuePairList = new ArrayList<NameValuePair>();
  
              for (String key : bodys.keySet()) {
                  nameValuePairList.add(new BasicNameValuePair(key, bodys.get(key)));
              }
              UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(nameValuePairList, "utf-8");
              formEntity.setContentType("application/x-www-form-urlencoded; charset=UTF-8");
              request.setEntity(formEntity);
          }
  
          return httpClient.execute(request);
      }	
  	
  	/**
  	 * Post String
  	 * 
  	 * @param host
  	 * @param path
  	 * @param method
  	 * @param headers
  	 * @param querys
  	 * @param body
  	 * @return
  	 * @throws Exception
  	 */
  	public static HttpResponse doPost(String host, String path, String method, 
  			Map<String, String> headers, 
  			Map<String, String> querys, 
  			String body)
              throws Exception {    	
      	HttpClient httpClient = wrapClient(host);
  
      	HttpPost request = new HttpPost(buildUrl(host, path, querys));
          for (Map.Entry<String, String> e : headers.entrySet()) {
          	request.addHeader(e.getKey(), e.getValue());
          }
  
          if (StringUtils.isNotBlank(body)) {
          	request.setEntity(new StringEntity(body, "utf-8"));
          }
  
          return httpClient.execute(request);
      }
  	
  	/**
  	 * Post stream
  	 * 
  	 * @param host
  	 * @param path
  	 * @param method
  	 * @param headers
  	 * @param querys
  	 * @param body
  	 * @return
  	 * @throws Exception
  	 */
  	public static HttpResponse doPost(String host, String path, String method, 
  			Map<String, String> headers, 
  			Map<String, String> querys, 
  			byte[] body)
              throws Exception {    	
      	HttpClient httpClient = wrapClient(host);
  
      	HttpPost request = new HttpPost(buildUrl(host, path, querys));
          for (Map.Entry<String, String> e : headers.entrySet()) {
          	request.addHeader(e.getKey(), e.getValue());
          }
  
          if (body != null) {
          	request.setEntity(new ByteArrayEntity(body));
          }
  
          return httpClient.execute(request);
      }
  	
  	/**
  	 * Put String
  	 * @param host
  	 * @param path
  	 * @param method
  	 * @param headers
  	 * @param querys
  	 * @param body
  	 * @return
  	 * @throws Exception
  	 */
  	public static HttpResponse doPut(String host, String path, String method, 
  			Map<String, String> headers, 
  			Map<String, String> querys, 
  			String body)
              throws Exception {    	
      	HttpClient httpClient = wrapClient(host);
  
      	HttpPut request = new HttpPut(buildUrl(host, path, querys));
          for (Map.Entry<String, String> e : headers.entrySet()) {
          	request.addHeader(e.getKey(), e.getValue());
          }
  
          if (StringUtils.isNotBlank(body)) {
          	request.setEntity(new StringEntity(body, "utf-8"));
          }
  
          return httpClient.execute(request);
      }
  	
  	/**
  	 * Put stream
  	 * @param host
  	 * @param path
  	 * @param method
  	 * @param headers
  	 * @param querys
  	 * @param body
  	 * @return
  	 * @throws Exception
  	 */
  	public static HttpResponse doPut(String host, String path, String method, 
  			Map<String, String> headers, 
  			Map<String, String> querys, 
  			byte[] body)
              throws Exception {    	
      	HttpClient httpClient = wrapClient(host);
  
      	HttpPut request = new HttpPut(buildUrl(host, path, querys));
          for (Map.Entry<String, String> e : headers.entrySet()) {
          	request.addHeader(e.getKey(), e.getValue());
          }
  
          if (body != null) {
          	request.setEntity(new ByteArrayEntity(body));
          }
  
          return httpClient.execute(request);
      }
  	
  	/**
  	 * Delete
  	 *  
  	 * @param host
  	 * @param path
  	 * @param method
  	 * @param headers
  	 * @param querys
  	 * @return
  	 * @throws Exception
  	 */
  	public static HttpResponse doDelete(String host, String path, String method, 
  			Map<String, String> headers, 
  			Map<String, String> querys)
              throws Exception {    	
      	HttpClient httpClient = wrapClient(host);
  
      	HttpDelete request = new HttpDelete(buildUrl(host, path, querys));
          for (Map.Entry<String, String> e : headers.entrySet()) {
          	request.addHeader(e.getKey(), e.getValue());
          }
          
          return httpClient.execute(request);
      }
  	
  	private static String buildUrl(String host, String path, Map<String, String> querys) throws UnsupportedEncodingException {
      	StringBuilder sbUrl = new StringBuilder();
      	sbUrl.append(host);
      	if (!StringUtils.isBlank(path)) {
      		sbUrl.append(path);
          }
      	if (null != querys) {
      		StringBuilder sbQuery = new StringBuilder();
          	for (Map.Entry<String, String> query : querys.entrySet()) {
          		if (0 < sbQuery.length()) {
          			sbQuery.append("&");
          		}
          		if (StringUtils.isBlank(query.getKey()) && !StringUtils.isBlank(query.getValue())) {
          			sbQuery.append(query.getValue());
                  }
          		if (!StringUtils.isBlank(query.getKey())) {
          			sbQuery.append(query.getKey());
          			if (!StringUtils.isBlank(query.getValue())) {
          				sbQuery.append("=");
          				sbQuery.append(URLEncoder.encode(query.getValue(), "utf-8"));
          			}        			
                  }
          	}
          	if (0 < sbQuery.length()) {
          		sbUrl.append("?").append(sbQuery);
          	}
          }
      	
      	return sbUrl.toString();
      }
  	
  	private static HttpClient wrapClient(String host) {
  		HttpClient httpClient = new DefaultHttpClient();
  		if (host.startsWith("https://")) {
  			sslClient(httpClient);
  		}
  		
  		return httpClient;
  	}
  	
  	private static void sslClient(HttpClient httpClient) {
          try {
              SSLContext ctx = SSLContext.getInstance("TLS");
              X509TrustManager tm = new X509TrustManager() {
                  public X509Certificate[] getAcceptedIssuers() {
                      return null;
                  }
                  public void checkClientTrusted(X509Certificate[] xcs, String str) {
                  	
                  }
                  public void checkServerTrusted(X509Certificate[] xcs, String str) {
                  	
                  }
              };
              ctx.init(null, new TrustManager[] { tm }, null);
              SSLSocketFactory ssf = new SSLSocketFactory(ctx);
              ssf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
              ClientConnectionManager ccm = httpClient.getConnectionManager();
              SchemeRegistry registry = ccm.getSchemeRegistry();
              registry.register(new Scheme("https", 443, ssf));
          } catch (KeyManagementException ex) {
              throw new RuntimeException(ex);
          } catch (NoSuchAlgorithmException ex) {
          	throw new RuntimeException(ex);
          }
      }
  }
  