JarResource.java 文件源码

@Override
public InputStream getInputStream()
    throws java.io.IOException
{     
    checkConnection();
    if (!_urlString.endsWith("!/"))
        return new FilterInputStream(super.getInputStream()) 
        {
            @Override
            public void close() throws IOException {this.in=IO.getClosedStream();}
        };

    URL url = new URL(_urlString.substring(4,_urlString.length()-2));      
    InputStream is = url.openStream();
    return is;
}