如: <!---->xml version="1.0" encoding="GBK"
PushbackInputStream 读取后,会变成: <!---->xml version='1.0' encoding='GBK'
而UTF-8不会!
java 代码
- public static void testStream() throws IOException{
- int MAX=2048;
- URL url=new URL("http://www.open-open.com/indexrss.xml");
- / URL url=new URL("http://www.blogjava.net/kukoo/Rss.aspx");
- InputStream input=url.openStream();
- byte bytes[]=new byte[MAX];
- PushbackInputStream bfInput=new PushbackInputStream(input);
- OutputStream out=new FileOutputStream(new File("e:/temp/rss.xml"));
- BufferedOutputStream bfOut=new BufferedOutputStream(out);
- int read=0;
- int totalBytes=0;
- int offset = 0;
- int max = MAX;
- while((read=bfInput.read(bytes,offset,max))!=-1&&offset
- totalBytes+=read;
- bfOut.write(bytes, offset, max);
- offset+=read;
- max-=read;
- System.out.println("read:"+read+"total:"+totalBytes);
- }
-
- System.out.println(read+":"+totalBytes);
- bfOut.flush();
- bfOut.close();
- bfInput.close();
- Reader reader=new InputStreamReader(new ByteArrayInputStream(bytes,0,offset));
- BufferedReader bufferReader=new BufferedReader(reader);
- String longer=bufferReader.readLine();
- System.out.println(""+longer);
- }
