src/main/java/com/rockagen/commons/http/HttpConn.java
public static String sendBody(String target, byte[] body)
            throws IOException {

        return sendBody(target, body, RequestMethod.POST);

    }
public static String sendBody(String target, byte[] body)
            throws IOException {

        return sendBody(target, body, RequestMethod.POST);

    }
Send a http request with implicit params

@param target target address
@param body   request body
@return result String
@throws IOException  if an I/O error occurs