从我的Java工具启动execution.exe
我的工具带有Java的用户界面。如果我点击一个按钮,我想启动一个应用程序。exe在我的工具中,我有一个控制台,我想把.exe的输出(控制台)放在那里。为此,我已这样做:从我的Java工具启动execution.exe,java,multithreading,user-interface,netbeans,exe,Java,Multithreading,User Interface,Netbeans,Exe,我的工具带有Java的用户界面。如果我点击一个按钮,我想启动一个应用程序。exe在我的工具中,我有一个控制台,我想把.exe的输出(控制台)放在那里。为此,我已这样做: Runtime run = Runtime.getRuntime(); StyledDocument doc = txtResult.getStyledDocument(); SimpleAttributeSet keyWord = new SimpleAttributeSet(); StyleConst
Runtime run = Runtime.getRuntime();
StyledDocument doc = txtResult.getStyledDocument();
SimpleAttributeSet keyWord = new SimpleAttributeSet();
StyleConstants.setForeground(keyWord, Color.RED);
try {
Process pp=run.exec(PATHEXE);
BufferedReader in =new BufferedReader(new InputStreamReader(pp.getInputStream()));
BufferedReader inErr =new BufferedReader(new InputStreamReader(pp.getErrorStream()));
String line = null;
String lineErr = null;
while (((line = in.readLine()) != null) ||(lineErr = inErr.readLine()) != null) {
if(line != null)
doc.insertString(doc.getLength(), line+"\n", null );
if(lineErr != null)
doc.insertString(doc.getLength(), lineErr+"\n", keyWord );
}
int exitVal = pp.waitFor();
System.out.println("Process exitValue: " + exitVal);
btRun.setEnabled(true);
} catch (Exception e) {
e.printStackTrace();
System.out.println(e.getMessage());
}
一切正常,但我仍有一些问题:
使用一个。它提供了从EDT中删除长时间运行的任务的功能,同时更新EDT上的GUI。运行线程中的任务很容易:
// put up a progress dialog or something here
Runnable backgroundJob = new Runnable() {
public void run() {
final String output = executeJob(); // call your code you provided
SwingUtilities.invokeLater( new Runnable() {
public void run() {
// safely do your updates to the UI here on the Swing Thread
// hide progress dialog here
updateUI( output );
}
});
}
};
Thread backgroundThread = new Thread( backgroundJob );
backgroundThread.start();
如果您不想在.exe执行时阻止UI,只需在子线程中运行.exec即可。此外,您可以向子线程注册回调函数,它可以在执行结束时回调该子线程