Java类中request根据HTTP请求URL并取得返回值

public static net.sf.json.JSONObject httpRequest(String requestUrl, String requestMethod) {
		net.sf.json.JSONObject jsonObject = null;
        StringBuffer buffer = new StringBuffer();
        try {


            URL url = new URL(requestUrl);
            // http协议传输
            HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection();


            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();
            // 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();
            jsonObject = net.sf.json.JSONObject.fromObject(buffer.toString());
        } catch (Exception e) {
            e.printStackTrace();
        }
        return jsonObject;
    }

直接复制，挂参数即可，url和请求方式