我下载网页的代码如下：
public StringBuffer download(String strUrl,String encoding) {
StringBuffer strContent=new StringBuffer();
URL myurl;
try {
myurl = new URL(strUrl);
URLConnection ucon =myurl.openConnection();
ucon.setConnectTimeout(httpConnectTimeOut);
ucon.setReadTimeout(httpReadTimeOut);
ucon.setRequestProperty("User-Agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322)");
InputStream in=ucon.getInputStream();
byte buffer[]=new byte[1024];
while(true)
{
int n=in.read(buffer);
if(n<0)
break;
strContent.append(new String(buffer,0,n,encoding));
}
in.close();
} catch (MalformedURLException e) {
//e.printStackTrace();
Out.print(Out.ERROR_INFO,"False Url!");
} catch (IOException e) {
//e.printStackTrace();
//Out.print(Out.ERROR_INFO,"Http error!"+strUrl);
}
return strContent;
}
我传入的encoding参数根据网站不同，有utf-8，也有GB2312
