我对使用 FileReader 应用 SwingWorker 有问题,我的观点是我需要使用 SwingWorker 实现 FileReader 以使我的 UI 显示文件中的文本,这是我的代码
class Read1 extends SwingWorker<String,String>{
protected Void doInBackground() throws Exception{
FileReader read = new FileReader("msg.txt");
BufferedReader in = new BufferedReader(read);
String s;
s=in.readLine();
System.out.println(s);
return s;
}
protected void done()
{
try{
String show;
show=get();
textArea.append(show);}catch(Exception e){}}
public static void main(String args[]) {
Read1 r = new Form().new Read1();
r.execute();
但是它不会在 UI 文本区域上附加任何内容
有人有解决办法吗?谢谢
对我来说效果很好:
public class Reader extends SwingWorker<List<String>, String> {
protected List<String> doInBackground() throws Exception {
ArrayList<String> lstText = new ArrayList<String>(25);
BufferedReader in = null;
try {
FileReader read = new FileReader("Scanner.txt");
in = new BufferedReader(read);
String s = null;
while ((s = in.readLine()) != null) {
lstText.add(s);
publish(s);
}
} finally {
try {
in.close();
} catch (Exception e) {
}
}
return lstText;
}
@Override
protected void process(List<String> chunks) {
for (String text : chunks) {
fldText.append(text + "\n");
}
}
@Override
protected void done() {
}
}
本文内容由网友自发贡献,版权归原作者所有,本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容,请联系:hwhale#tublm.com(使用前将#替换为@)