通过HTTP访问接口，工具方法

/*
*  通过HTTP访问接口，
* 详情，返回一个Map对象
*/
public static Map<String,Object> callByHTTP(String URL,String data,String RequestMethod,boolean encrypt) throws Exception{
StringBuffer returnData=new StringBuffer();
InputStream in = null;
//网络连接
logger.info("url:url："+URL);
try {
URL url = new URL(URL);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setUseCaches(false);
conn.setRequestMethod(RequestMethod);
conn.setRequestProperty("Cache-Control", "no-cache");
conn.setRequestProperty("Charsert", "UTF-8");
conn.setConnectTimeout(30000);
conn.setReadTimeout(30000);
conn.connect();
if(data!=null&&!data.equals("")){
OutputStream outputStream = conn.getOutputStream();
outputStream.write(data.getBytes("UTF-8"));
outputStream.flush();
outputStream.close();
}
in = conn.getInputStream();
} catch (Exception e) {
e.printStackTrace();
logger.error("接口连接超时！");
}
//解析数据
try{
if (in != null) {
BufferedReader bufferIn = new BufferedReader(new InputStreamReader(in,"UTF-8"));
String temp=null;
while((temp=bufferIn.readLine())!=null){
returnData.append(temp);
}
bufferIn.close();
in.close();
if (encrypt) {
logger.info(returnData.toString());
return  (Map<String,Object>)JSON.parse(DesEncrypt.getInstance().decrypt(returnData.toString()));
} else {
logger.info(returnData.toString());
return  (Map<String,Object>)JSON.parse(returnData.toString());
}
}
} catch (ApplicationException e) {
e.printStackTrace();
logger.error("系统接口运行失败！");
throw new ApplicationException();
}
logger.error("系统接口连接失败！");
return null;
}