HttpURLConnection--HttpURLConnection的基本用法

根据URL获取图片

private Bitmap getImageFromNet(String imageUrl) {HttpURLConnection conn=null;try {//创建一个URLURL url=new URL(imageUrl);//获取一个连接conn = (HttpURLConnection) url.openConnection();//设置请求方式conn.setRequestMethod("GET");//设置连接超时conn.setConnectTimeout(10000);//设置读取超时conn.setReadTimeout(10000);//开始连接conn.connect();//获取连接响应码int code = conn.getResponseCode();if(code==200){InputStream is=conn.getInputStream();Bitmap bitmap = BitmapFactory.decodeStream(is);return bitmap;}else{Log.i("响应码", String.valueOf(code));}} catch (Exception e) {e.printStackTrace();}finally{if(conn!=null){conn.disconnect();}}return null;}