json-rpc请求:

/**	 * @param jsonArgument	 * @return	 */	public static String get_data(String jsonArgument ) {		try {			URL httpUrl = new URL(PropKit.get("zabbix.url"));			HttpURLConnection conn = (HttpURLConnection) httpUrl.openConnection();			conn.setRequestMethod("POST");			conn.setDoOutput(true);			conn.setRequestProperty("Content-Type", "application/json-rpc");			// 表单参数			StringBuffer params = new StringBuffer();			params.append(jsonArgument);			byte[] bypes = params.toString().getBytes();			conn.getOutputStream().write(bypes);// 输入参数				//返回			if(conn.getInputStream()!=null){				BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));				String result = reader.readLine();				reader.close();				return result;			}else{				return null;			}		} catch (Exception e) {			logger.error("DATA:"+jsonArgument, e);			//e.printStackTrace();		}		return null;	}