** 안녕하세요, Java에서 아카이버를 만들려고합니다. 즉, 나는 끊임없이 스트림에서 읽고 쓰고 있습니다. JProgressBar를 업데이트하여 필자가 작성한 내용을 보여줄 수 있어야합니다. 내 코드는 현재 아카이브의 각 항목 이후 진행률 막대를 업데이트합니다. 내 변수와 모든 것은 코드가 화면에 표시되지 않는 것을 제외하고는 업데이트된다고 말합니다. 아카이브에 진입 한 후에는 진행률 표시 줄과 텍스트가 포함 된 JPanel에서 revalidate() 메서드를 호출하지만 화면에는 아무 것도 표시되지 않습니다. 아카이브를 쓰는 출력 스트림이 완전히 쓰여질 때까지 화면이 업데이트되지 않습니다. 그런 다음 진행률 텍스트에 "24 개의 파일 중 24 개가 기록되었습니다"라는 전체 진행률 막대가 표시됩니다.코드가 완료 될 때까지 JComponent.revalidate()가 업데이트되지 않습니다.
누구든지 내 코드가 실행되기 전에 그래픽을 업데이트 할 수있는 방법을 알려 줄 수 있습니까?
WritingBox.java :
package org.apache.commons.compress;
import javax.swing.JDialog;
public class WritingBox extends javax.swing.JDialog {
/** Creates new form WritingBox */
public WritingBox(java.awt.Frame parent, boolean modal) {
super(parent, modal);
initComponents();
theprogressbar.setMaximum(1);
theprogressbar.setMinimum(0);
this.setLocation(parent.getLocationOnScreen().x+(parent.getWidth()-this.getWidth())/2, parent.getLocationOnScreen().y+(parent.getHeight()-this.getHeight())/2);
this.setVisible(true);
}
public void progressListener(Progress p) {
writtenxoutofx.setText("Written "+Integer.toString(p.doneSoFar)+" out of "+Integer.toString(p.total)+" files to the Archive");
theprogressbar.setValue(p.doneSoFar/p.total);
if (p.doneSoFar == p.total) this.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
thecontainer.revalidate();
};
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
thecontainer = new javax.swing.JPanel();
jLabel1 = new javax.swing.JLabel();
writtenxoutofx = new javax.swing.JLabel();
theprogressbar = new javax.swing.JProgressBar();
setDefaultCloseOperation(javax.swing.WindowConstants.DO_NOTHING_ON_CLOSE);
setName("Form"); // NOI18N
thecontainer.setName("thecontainer"); // NOI18N
org.jdesktop.application.ResourceMap resourceMap = org.jdesktop.application.Application.getInstance(targzipmanager.TarGzipManagerApp.class).getContext().getResourceMap(WritingBox.class);
jLabel1.setText(resourceMap.getString("jLabel1.text")); // NOI18N
jLabel1.setName("jLabel1"); // NOI18N
writtenxoutofx.setText(resourceMap.getString("writtenxoutofx.text")); // NOI18N
writtenxoutofx.setName("writtenxoutofx"); // NOI18N
theprogressbar.setName("theprogressbar"); // NOI18N
javax.swing.GroupLayout thecontainerLayout = new javax.swing.GroupLayout(thecontainer);
thecontainer.setLayout(thecontainerLayout);
thecontainerLayout.setHorizontalGroup(
thecontainerLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(thecontainerLayout.createSequentialGroup()
.addContainerGap()
.addGroup(thecontainerLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(theprogressbar, javax.swing.GroupLayout.DEFAULT_SIZE, 307, Short.MAX_VALUE)
.addComponent(jLabel1)
.addComponent(writtenxoutofx))
.addContainerGap())
);
thecontainerLayout.setVerticalGroup(
thecontainerLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(thecontainerLayout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(writtenxoutofx)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(theprogressbar, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(thecontainer, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(thecontainer, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
pack();
}// </editor-fold>
// Variables declaration - do not modify
private javax.swing.JLabel jLabel1;
private javax.swing.JPanel thecontainer;
private javax.swing.JProgressBar theprogressbar;
private javax.swing.JLabel writtenxoutofx;
// End of variables declaration
}
Progress.java
package org.apache.commons.compress;
public class Progress { //This is basically a Struct
public int total;
public int doneSoFar;
private Progress(){
}
public Progress(int d, int t){
total = t;
doneSoFar = t;
}
}
TarArchive.java : doSave 방법
public void doSave(OutputStream output) throws ArchiveException {
// Stream initializing
//BufferedInputStream origin = null;
//out.setMethod(ZipOutputStream.DEFLATED);
//byte data[] = new byte[BUFFER];
// get a list of files from current directory
// less than one file leads to an exception
Iterator iterator = this.getEntryIterator();
if(!iterator.hasNext()) {
throw new ArchiveException("There must be at least one file to be pack.");
}
JFrame jf = targzipmanager.TarGzipManagerApp.getApplication().getMainFrame();
WritingBox wb = new WritingBox(jf, false);
TarOutputStream out = null;
int x = 0;
try {
out = new TarOutputStream(new BufferedOutputStream(output));
while(iterator.hasNext()) {
x++;
ArchiveEntry archiveEntry = (ArchiveEntry)iterator.next();
InputStream fInputStream = archiveEntry.getStream();
TarEntry entry = new TarEntry(archiveEntry.getName());
entry.setModTime(0);
entry.setSize(fInputStream.available());
entry.setUserID(0);
entry.setGroupID(0);
entry.setUserName("avalon");
entry.setGroupName("excalibur");
entry.setMode(0100000);
out.putNextEntry(entry);
out.copyEntryContents(fInputStream);
out.closeEntry();
wb.progressListener(new Progress(x, entries.size()));
}
} catch (IOException e) {
throw new ArchiveException("Creation of this archive failed cause of IOExceptions.", e);
} finally {
try {
out.close();
} catch (IOException e1) {
throw new ArchiveException("Creation of this archive failed cause of IOExceptions.", e1);
}
}
}
수있는 사람 여기
고맙습니다
내 코드입니다 도와주세요? 각 항목 다음에 revalidate()를 호출하더라도 코드가 중지되고 기다리기 시작할 때만 업데이트됩니다. **
어떻게하면됩니까? –
@ user411316 : 예를 들어, "객체로 계속"을 참조하십시오. http://en.wikipedia.org/wiki/Continuation_passing_style#Continuations_as_objects – trashgod