httpURLConnection-网络请求的两种方式-get请求和post请求

Posted Tears_fg

tags:

篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了httpURLConnection-网络请求的两种方式-get请求和post请求相关的知识,希望对你有一定的参考价值。

GET请求

 

 /**
     * 从网络获取json数据,(String byte[})
*
@param path * @return */ public static String getJsonByInternet(String path){ try { URL url = new URL(path.trim()); //打开连接 HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection(); if(200 == urlConnection.getResponseCode()){ //得到输入流 InputStream is =urlConnection.getInputStream(); ByteArrayOutputStream baos = new ByteArrayOutputStream(); byte[] buffer = new byte[1024]; int len = 0; while(-1 != (len = is.read(buffer))){ baos.write(buffer,0,len); baos.flush(); } return baos.toString("utf-8"); } } catch (IOException e) { e.printStackTrace(); } return null; }
POST请求

 

//获取其他页面的数据
    /**
     * POST请求获取数据
     */
    public static String postDownloadJson(String path,String post){
        URL url = null;
        try {
            url = new URL(path);
            HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
            httpURLConnection.setRequestMethod("POST");// 提交模式
            // conn.setConnectTimeout(10000);//连接超时 单位毫秒
            // conn.setReadTimeout(2000);//读取超时 单位毫秒
            // 发送POST请求必须设置如下两行
            httpURLConnection.setDoOutput(true);
            httpURLConnection.setDoInput(true);
            // 获取URLConnection对象对应的输出流
            PrintWriter printWriter = new PrintWriter(httpURLConnection.getOutputStream());
            // 发送请求参数
            printWriter.write(post);//post的参数 xx=xx&yy=yy
            // flush输出流的缓冲
            printWriter.flush();
            //开始获取数据
            BufferedInputStream bis = new BufferedInputStream(httpURLConnection.getInputStream());
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            int len;
            byte[] arr = new byte[1024];
            while((len=bis.read(arr))!= -1){
                bos.write(arr,0,len);
                bos.flush();
            }
            bos.close();
            return bos.toString("utf-8");
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

 

以上是关于httpURLConnection-网络请求的两种方式-get请求和post请求的主要内容,如果未能解决你的问题,请参考以下文章

HttpURLConnection与HttpClient浅析

HttpURLConnection与HttpClient浅析AAAA

HttpURLConnection下载图片的两种方式

Android网络编程HttpClient与HttpURLConnection

Android--网络请求

Android中的网络技术基础用法