我有两个观看者,一个有用户输入的文本,另一个用户是Eclipse的built_in控制台视图。我将根据用户的输入运行一个java程序,并希望在ConsoleView中显示日志信息。有谁知道如何将输出重定向到控制台视图?
由于
答案 0 :(得分:1)
所以问题How to write a hyperlink to an eclipse console from a plugin和writing to the eclipse console提供了重定向到控制台的示例。
博文Displaying the console in your RCP application
我们仍然需要创建OuputStream
并打开新的Console
,或将控制台的MessageStream
与stdout
adn stderr
相关联(例如我的想法) previous answer)
答案 1 :(得分:1)
RCP 控制台上的重定向输出:
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import javax.annotation.PostConstruct;
import org.eclipse.e4.ui.di.Focus;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Text;
public class ConsoleView {
private Text text;
@PostConstruct
public void createPartControl(Composite parent) {
text = new Text(parent,
SWT.READ_ONLY | SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL);
OutputStream out = new OutputStream() {
StringBuffer buffer = new StringBuffer();
@Override
public void write(final int b) throws IOException {
if (text.isDisposed())
return;
buffer.append((char) b);
}
@Override
public void write(byte[] b, int off, int len) throws IOException {
super.write(b, off, len);
flush();
}
@Override
public void flush() throws IOException {
final String newText = buffer.toString();
Display.getDefault().asyncExec(new Runnable() {
public void run() {
text.append(newText);
}
});
buffer = new StringBuffer();
}
};
System.setOut(new PrintStream(out));
final PrintStream oldOut = System.out;
text.addDisposeListener(new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
System.setOut(oldOut);
}
});
}
@Focus
public void setFocus() {
text.setFocus();
}
}
截图: