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button.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e) {
String urltext=text.getText();
try {
URL url=new URL(urltext);
URLConnection uc=url.openConnection();
String line=System.getProperty("line.separator");
area.append("主机名:"+url.getHost());
area.append(line);
area.append("端口号:"+url.getPort());
area.append(line);
area.append("类型:"+uc.getContentType());
area.append(line);
area.append("文件大小:"+uc.getContentLength());
} catch (MalformedURLException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
}
}
});