在JTable中加载进度条及进行操作

我们在多文件下载或多事务处理时，经常会出现使用线程以提高效率的情况，而这时在GUI程序中如何表示进度，就成了一个不大不小的问题。
现在比较被大众接受的方式，大体就是如迅雷等下载工具中一样，用表格中加载进度条以进行显示。
而对于Swing来说，并没有现成的组件能够实现这一操作，还有下载的并发，似乎也需要额外进行处理。于是，我在此提供一个基于jdk1.6版本的示例， 以供参考。（因为jdk1.6提供了SwingWorker，简化了图形程序中的线程处理，使用其他jdk开发请替换此项即可）

本示例由两个java文件组成

MyTableModel.java

package org.loon.test;

import java.awt.Component;
import java.util.HashMap;
import java.util.Map;

import javax.swing.BorderFactory;
import javax.swing.JProgressBar;
import javax.swing.JTable;
import javax.swing.SwingWorker;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;

/***/ /**
*<p>
*Title:LoonFramework
*</p>
*<p>
*Description:
*</p>
*<p>
*Copyright:Copyright(c)2007
*</p>
*<p>
*Company:LoonFramework
*</p>
*
*@authorchenpeng
*@email：[email protected]
*@version0.1
*/
public class MyTableModel extends DefaultTableModel ... {
/***//**
*
*/
privatestaticfinallongserialVersionUID=1L;

privatestaticfinalColumnContext[]columnArray=...{
newColumnContext("ID",Integer.class,false),
newColumnContext("名称",String.class,false),
newColumnContext("进度",Integer.class,false)};

privatefinalMap<Integer,SwingWorker>swmap=newHashMap<Integer,SwingWorker>();

privateintnumber=0;

publicvoidaddTest(Testt,SwingWorkerworker)...{
Object[]obj=...{newInteger(number),t.getName(),t.getProgress()};
super.addRow(obj);
swmap.put(number,worker);
number++;
}

publicsynchronizedSwingWorkergetSwingWorker(intidentifier)...{
Integerkey=(Integer)getValueAt(identifier,0);
returnswmap.get(key);
}

publicTestgetTest(intidentifier)...{
returnnewTest((String)getValueAt(identifier,1),
(Integer)getValueAt(identifier,2));
}

publicbooleanisCellEditable(introw,intcol)...{
returncolumnArray[col].isEditable;
}


publicClass<?>getColumnClass(intmodelIndex)...{
returncolumnArray[modelIndex].columnClass;
}

publicintgetColumnCount()...{
returncolumnArray.length;
}

publicStringgetColumnName(intmodelIndex)...{
returncolumnArray[modelIndex].columnName;
}

privatestaticclassColumnContext...{
publicfinalStringcolumnName;

publicfinalClasscolumnClass;

publicfinalbooleanisEditable;

publicColumnContext(StringcolumnName,ClasscolumnClass,
booleanisEditable)...{
this.columnName=columnName;
this.columnClass=columnClass;
this.isEditable=isEditable;
}
}
}

class Test ... {
privateStringname;

privateIntegerprogress;

publicTest(Stringname,Integerprogress)...{
this.name=name;
this.progress=progress;
}

publicvoidsetName(Stringstr)...{
name=str;
}

publicvoidsetProgress(Integerstr)...{
progress=str;
}

publicStringgetName()...{
returnname;
}

publicIntegergetProgress()...{
returnprogress;
}
}

class ProgressRenderer extends DefaultTableCellRenderer ... {
/***//**
*
*/
privatestaticfinallongserialVersionUID=1L;
privatefinalJProgressBarb=newJProgressBar(0,100);

publicProgressRenderer()...{
super();
setOpaque(true);
b.setBorder(BorderFactory.createEmptyBorder(1,1,1,1));
}

publicComponentgetTableCellRendererComponent(JTabletable,Objectvalue,
booleanisSelected,booleanhasFocus,introw,intcolumn)...{
Integeri=(Integer)value;
Stringtext="完成";
if(i<0)...{
//删除
text="取消完毕";
}elseif(i<100)...{
b.setValue(i);
returnb;
}
super.getTableCellRendererComponent(table,text,isSelected,hasFocus,
row,column);
returnthis;
}
}

MyPanel.java

package org.loon.test;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.util.HashSet;
import java.util.Random;

import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.Icon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.JScrollPane;
import javax.swing.JSeparator;
import javax.swing.JTable;
import javax.swing.RowFilter;
import javax.swing.SwingWorker;
import javax.swing.WindowConstants;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableRowSorter;

// importorg.loon.framework.dll.NativeLoader;

/***/ /**
*<p>
*Title:LoonFramework
*</p>
*<p>
*Description:
*</p>
*<p>
*Copyright:Copyright(c)2007
*</p>
*<p>
*Company:LoonFramework
*</p>
*
*@authorchenpeng
*@email：[email protected]
*@version0.1
*/
public class MyPanel extends JPanel ... {
/***//**
*
*/
privatestaticfinallongserialVersionUID=1L;

privatestaticfinalColorevenColor=newColor(250,250,250);

privatefinalMyTableModelmodel=newMyTableModel();

privatefinalTableRowSorter<MyTableModel>sorter=newTableRowSorter<MyTableModel>(
model);

privatefinalJTabletable;

publicMyPanel()...{
super(newBorderLayout());
table=newJTable(model)...{
/***//**
*
*/
privatestaticfinallongserialVersionUID=1L;

publicComponentprepareRenderer(
TableCellRenderertableCellRenderer,introw,intcolumn)...{
Componentcomponent=super.prepareRenderer(tableCellRenderer,row,
column);
//背景色及字体设置
if(isRowSelected(row))...{
component.setForeground(getSelectionForeground());
component.setBackground(getSelectionBackground());
}else...{
component.setForeground(getForeground());
component.setBackground((row%2==0)?evenColor:table
.getBackground());
align=

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ubuntu下简单配置mysql数据库 | 使用Java Service Wrapper将java程序作为li ...

• 2009-03-05 17:07
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