url http下载文件demo

 1 private void downLoade(String url, String savePath){
 2      FileWriter fw = New FileWriter(savePath);
 3      PrintWritrer pw = New PrintWriter(fw);
 4      URL resourseUrl = new URL(url);
 5      InputStream conten = resourseUrl.getConten();
 6      BufferedReader in = newBufferedReader(new InputStreamReader(content));
 7      String line;
 8      while((line = in.readLine()) != null){
 9               pw.println(line);
10      }
11       pw.close();
12       fw.close();
13 
14 }

第二种方法:

public void downLoad(String url,String savePath){
    try{
       InputStream in = null;

        int connectTimeOut = 30*1000;  //链接超时30S
        int readTimeOut = 60*1000;       //IO超时1min
        byte[]  buffer = new byte[8*1024];   //IO缓冲区:8KB

        URL url = new URL(url);
        URLConnection conn = url.openConnection();
        conn.setConnectTime(connectTimeOut );
        conn.setReadTimeOut();
        conn.connect();
        in = conn.getInputStream();

        File file = new File(savePath);
        out = newFileOutputStream(file);

       for(;;){     //无限循环的写法
              int bytes = in.read(buffer);
              if(bytes  == -1){
                   break;
              }
              out.write(buffer,0,bytes);
       }
       in.close();
       out.close();
        
    }catch(Exception e){

    }
}