JAVA POST请求（https）

本文主要摘自网络资源，感谢各位大神的无私的奉献！！！！

最近开发微信公众号，发现微信的各种请求全是POST（HTTPS），在网上找了相关内容，如下：

1、建立一个证书类：
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.X509TrustManager;

/**
* 证书信任管理器（用于https请求）
*/
public class MyX509TrustManager implements X509TrustManager {

public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
}

public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
}

public X509Certificate[] getAcceptedIssuers() {
return null;
}
}

2.建立一个POST传输类

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.ConnectException;
import java.net.URL;

import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;

/**
* 公众平台通用接口工具类
*
*/
public class WeixinUtil {

   /**
   * 发起https请求并获取结果
   *
   * @param requestUrl
   * 请求地址
   * @param requestMethod
   * 请求方式（GET、POST）
   * @param outputStr
   * 提交的数据
   * @return String
   */
   public static String httpRequest(String requestUrl, String requestMethod, String outputStr) {
       String result = null;
       StringBuffer buffer = new StringBuffer();
       try {
           // 创建SSLContext对象，并使用我们指定的信任管理器初始化
           TrustManager[] tm = { new MyX509TrustManager() };
           SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
           sslContext.init(null, tm, new java.security.SecureRandom());
           // 从上述SSLContext对象中得到SSLSocketFactory对象
           SSLSocketFactory ssf = sslContext.getSocketFactory();

           URL url = new URL(requestUrl);
           HttpsURLConnection httpUrlConn = (HttpsURLConnection) url.openConnection();
           httpUrlConn.setSSLSocketFactory(ssf);

           httpUrlConn.setDoOutput(true);
           httpUrlConn.setDoInput(true);
           httpUrlConn.setUseCaches(false);
           // 设置请求方式（GET/POST）
           httpUrlConn.setRequestMethod(requestMethod);

if ("GET".equalsIgnoreCase(requestMethod))
httpUrlConn.connect();

           // 当有数据需要提交时
           if (null != outputStr) {
               OutputStream outputStream = httpUrlConn.getOutputStream();
               // 注意编码格式，防止中文乱码
               outputStream.write(outputStr.getBytes("UTF-8"));
               outputStream.close();
           }

           // 将返回的输入流转换成字符串
           InputStream inputStream = httpUrlConn.getInputStream();
           InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
           BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

           String str = null;
           while ((str = bufferedReader.readLine()) != null) {
               buffer.append(str);
           }
           bufferedReader.close();
           inputStreamReader.close();
           // 释放资源
           inputStream.close();
           // inputStream = null;
           httpUrlConn.disconnect();
           result = buffer.toString();
           // jsonObject = JSONObject.fromObject(buffer.toString());
       } catch (ConnectException ce) {
           ce.printStackTrace();
           // log.error("Weixin server connection timed out.");
       } catch (Exception e) {
           e.printStackTrace();
           // log.error("https request error:{}", e);
       }
       return result;
   }

   public static void main(String[] args) {
       String requestUrl = " https://api.weixin.qq.com/cgi-bin/menu/create?"
               + "access_token=ACCESS_TOKEN";
       String requestMethod = "POST";
       String outputStr = " {\"button\":[{\"type\":\"click\",\"name\":\"今日歌曲111\",\"key\":\"V1001_TODAY_MUSIC\"},"
               + "{\"name\":\"菜单\",\"sub_button\":[{\"type\":\"view\",\"name\":\"搜索\",\"url\":\"http://www.soso.com/\"},"
               + "{\"type\":\"view\",\"name\":\"视频\",\"url\":\"http://v.qq.com/\"},"
               + "{\"type\":\"click\",\"name\":\"赞一下我们\",\"key\":\"V1001_GOOD\"}]}]}";

       String result = WeixinUtil.httpRequest(requestUrl, requestMethod, outputStr);
       System.out.println("result:"+result);
   }


}

JAVA POST请求（https）

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