发起http请求获得响应结果

    public String sendMessageToStore(TPatientInfo tPatientInfo) {
        String result = "";
        BufferedReader in = null;
        try {
            String url = "http://test.api.qianmi.com/api?";
            URL realUrl = new URL(url);
            // 打开和URL之间的连接
            URLConnection connection = realUrl.openConnection();
            // 设置请求通用的请求属性
            connection.setRequestProperty("accept", "*/*");
            connection.setRequestProperty("connection", "Keep-Alive");
            connection.setRequestProperty("user-agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            //建立实际的连接
            connection.connect();
            // 定义 BufferedReader输入流读取URL响应
            in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String  line;
            while ((line = in.readLine()) != null){
                result += line;
            }
        } catch (Exception e) {
            System.out.println("发送GET请求出现异常！" + e);
            e.printStackTrace();
        }finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (Exception e2) {
                e2.printStackTrace();
            }
        }
        return result;
    }