Java_HttpRequest方法

/**
     * http调用
     *
     * @param httpUrl :请求接口
     * @param httpArg :参数
     * @return 返回结果
     */
    public static String httpRequest(String httpUrl, String httpArg) {
        BufferedReader reader = null;
        String result = null;
        StringBuffer sbf = new StringBuffer();
        httpUrl = httpUrl + "?" + httpArg;

        try {
            URL url = new URL(httpUrl);
            HttpURLConnection connection = (HttpURLConnection) url
                    .openConnection();
            connection.setConnectTimeout(3000);//超时时间，单位毫秒，3000是3秒
            connection.setReadTimeout(3000);
            connection.setRequestMethod("GET");
            // 填入apikey到HTTP header（百度接口）
            //connection.setRequestProperty("apikey", "11111");
            connection.connect();
            InputStream is = connection.getInputStream();
            reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));//UTF-8
            String strRead = null;
            while ((strRead = reader.readLine()) != null) {
                sbf.append(strRead);
                sbf.append("\r\n");
            }
            reader.close();
            result = sbf.toString();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }