public String getWebService(){

        HttpURLConnection connection = null;

        OutputStream os = null;

        int responseCode = 0;

        StringBuilder sb = new StringBuilder();

        //第一步：创建服务地址，不是WSDL地址

        URL url = null;

        try {

            url = new URL("");   //*****这里填写url地址

        } catch (MalformedURLException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

        //第二步：打开一个通向服务地址的连接

        try {

            connection = (HttpURLConnection) url.openConnection();

            //第三步：设置参数

            //3.1发送方式设置：POST必须大写

            connection.setRequestMethod("POST");

            //3.2设置数据格式：content-type

            connection.setRequestProperty("content-type", "text/xml;charset=utf-8");

            //3.3设置输入输出，因为默认新创建的connection没有读写权限，

            connection.setDoInput(true);

            connection.setDoOutput(true);

            os = connection.getOutputStream();

            //第五步：接收服务端响应，打印

            responseCode = connection.getResponseCode(); 

            String temp = null;

            if(200 == responseCode){//表示服务端响应成功

                InputStream is = connection.getInputStream();

                InputStreamReader isr = new InputStreamReader(is);

                BufferedReader br = new BufferedReader(isr);

                while(null != (temp = br.readLine())){

                    sb.append(temp);

                }

                System.out.println(sb.toString());

                is.close();

                isr.close();

                br.close();

            }

            os.close();

        } catch (IOException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }  

        return sb.toString();

    }