android获取网络资源
1.生成url对象
2.创建连接
3.获取数据
例one:
/* 定义获取文件内容的URL */
URL myURL = new URL( "http://5billion.com.cn/poem.txt");
/* 打开URL链接 */
URLConnection ucon = myURL.openConnection();
/* 使用InputStreams,从URLConnection读取数据*/
InputStream is = ucon.getInputStream();
BufferedInputStream bis = new BufferedInputStream(is);
例two:
URL iconURL = new URL("http://www.google.com"+ gwh.getIconURL());
URLConnection conn = iconURL.openConnection();
conn.connect();
InputStream is = conn.getInputStream();
BufferedInputStream bis = new BufferedInputStream(is);
当获取bufferedInputStream时,生成字符串或图片方法:
1.字符串:
/* 用ByteArrayBuffer做缓存 */
ByteArrayBuffer baf = new ByteArrayBuffer(50);
int current = 0;
while((current = bis.read()) != -1){
baf.append((byte)current);
}
/* 将缓存的内容转化为String, 用UTF-8编码 */
myString = EncodingUtils.getString(baf.toByteArray(), "UTF-8");
//myString = new String(baf.toByteArray());
2.图片:
Bitmap bm = null;
bm = BitmapFactory.decodeStream(bis);
1.生成url对象
2.创建连接
3.获取数据
例one:
/* 定义获取文件内容的URL */
URL myURL = new URL( "http://5billion.com.cn/poem.txt");
/* 打开URL链接 */
URLConnection ucon = myURL.openConnection();
/* 使用InputStreams,从URLConnection读取数据*/
InputStream is = ucon.getInputStream();
BufferedInputStream bis = new BufferedInputStream(is);
例two:
URL iconURL = new URL("http://www.google.com"+ gwh.getIconURL());
URLConnection conn = iconURL.openConnection();
conn.connect();
InputStream is = conn.getInputStream();
BufferedInputStream bis = new BufferedInputStream(is);
当获取bufferedInputStream时,生成字符串或图片方法:
1.字符串:
/* 用ByteArrayBuffer做缓存 */
ByteArrayBuffer baf = new ByteArrayBuffer(50);
int current = 0;
while((current = bis.read()) != -1){
baf.append((byte)current);
}
/* 将缓存的内容转化为String, 用UTF-8编码 */
myString = EncodingUtils.getString(baf.toByteArray(), "UTF-8");
//myString = new String(baf.toByteArray());
2.图片:
Bitmap bm = null;
bm = BitmapFactory.decodeStream(bis);