JAVA Swing文件选择器及滚动条使用
package comparator.ui;
import java.awt.Container;
import java.util.List;
import java.awt.Point;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
import javax.swing.JTextField;
import comparator.util.FileReaderUtil;
public class YFileChooser implements ActionListener{
?/** Excel文件目录 */
?public File excelDir = null;
?/** Txt文件目录 */
?public File txtDir = null;
??? JFrame frame=new JFrame("IMIX消息比对器");
??? JTabbedPane tabPane=new JTabbedPane();//选项卡布局
??? Container con=new Container();//布局1
??? /** 处理过程中产生的提示信息显示面板 */
??? JScrollPane executeInfoPane = new JScrollPane();
??? /** 消息对比结果信息? */
??? JScrollPane compareResultPane = new JScrollPane();
??? //Container con1=new Container();//布局2
??? JLabel label1=new JLabel("Excel目录：");
??? JLabel label2=new JLabel("Txt目录：");
??? JTextField text1=new JTextField();
??? JTextField text2=new JTextField();
??? JButton button1=new JButton("选择..");
??? JButton button2=new JButton("选择..");
??? JButton doCompareBtn = new JButton("比对");
??? JFileChooser jfc=new JFileChooser();//文件选择器
???
??? YFileChooser(){
??????? jfc.setCurrentDirectory(new File("d:\"));//文件选择器的初始目录定为d盘
??????? //下面两行是取得屏幕的高度和宽度
??????? double lx=Toolkit.getDefaultToolkit().getScreenSize().getWidth();
??????? double ly=Toolkit.getDefaultToolkit().getScreenSize().getHeight();
??????? frame.setLocation(new Point((int)(lx/2)-150,(int)(ly/2)-150));//设定窗口出现位置
??????? frame.setSize(400,250);//设定窗口大小
??????? frame.setContentPane(tabPane);//设置布局
?????? //下面设定标签等的出现位置和高宽
??????? label1.setBounds(10,20,70,20);
??????? label2.setBounds(10,50,100,20);
??????? text1.setBounds(80,20,120,20);
??????? text2.setBounds(80,50,120,20);
??????? button1.setBounds(210,20,70,20);
??????? button2.setBounds(210,50,70,20);
??????? doCompareBtn.setBounds(10, 100, 70, 20);
???????
??????? button1.addActionListener(this);//添加事件处理
??????? button2.addActionListener(this);//添加事件处理
??????? doCompareBtn.addActionListener(this);
??????? con.add(label1);
??????? con.add(label2);
??????? con.add(text1);
??????? con.add(text2);
??????? con.add(button1);
??????? con.add(button2);
??????? con.add(doCompareBtn);
??????? con.add(jfc);
??????? tabPane.add("目录选择",con);//目录选择面板
??tabPane.add("提示信息", executeInfoPane );//提示信息面板
??tabPane.add("比对结果", compareResultPane);//比较结果面板
??????? frame.setVisible(true);//窗口可见
??????? //frame.setDefaultLookAndFeelDecorated(true);
??????? frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//使能关闭窗口，结束程序
??? }
??? public void actionPerformed(ActionEvent e){//事件处理
??????? if(e.getSource().equals(button1)){//判断触发方法的按钮是哪个
??????????? jfc.setFileSelectionMode(1);//设定只能选择到文件夹
??????????? int state=jfc.showOpenDialog(null);//此句是打开文件选择器界面的触发语句
??????????? if(state==1){
??????????????? return;//撤销则返回
??????????? }
??????????? else{
??????????? ?excelDir=jfc.getSelectedFile();//选择的Excel目录
??????????????? text1.setText(excelDir.getAbsolutePath());
??????????? }
??????? }
??????? if(e.getSource().equals(button2)){
??????????? //jfc.setFileSelectionMode(0);//设定只能选择到文件
??????????? jfc.setFileSelectionMode(1);//设定只能选择到文件夹
??????????? int state=jfc.showOpenDialog(null);//此句是打开文件选择器界面的触发语句
??????????? if(state==1){
??????????????? return;//撤销则返回
??????????? }
??????????? else{
??????????????? txtDir=jfc.getSelectedFile();//选择的txt目录
??????????????? text2.setText(txtDir.getAbsolutePath());
??????????? }
??????? }
??????? if(e.getSource().equals(doCompareBtn)){
??????? ?/*if(excelDir == null){
??????? ??JOptionPane.showMessageDialog(null, "Excel目录不能为空");
??????? ??return;
??????? ?}else if(txtDir == null){
??????? ??JOptionPane.showMessageDialog(null, "Txt目录不能为空");
??????? ??return;
??????? ?}*/
??????? ?executeInfoPane.setViewportView(getInfoList());
??????? }
??? }
???
??? private JList getInfoList(){
??? ?JList infoList = new JList();
??? ?DefaultListModel listModel = new DefaultListModel();
??? ?/*File infoFile = getInfoFile();
??? ?List<String> infoLines = FileReaderUtil.getFileTxtLines(infoFile);
??? ?for(String il:infoLines){
??? ??listModel.addElement(il);
??? ?}*/
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?listModel.addElement("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
??? ?
??? ?infoList.setModel(listModel);
??? ?return infoList;
??? }
???
??? private File getInfoFile(){
??? ?File f = new File(("file\\AllInfo.txt"));
??? ?return f;
??? }
???
??? public static void main(String[] args) {
??????? new YFileChooser();
??? }
}
?
