【2】JAVA---地址App小软件（ListPanel.class）（表现层）

这个是表现层的主界面。

/*
 * ListPanel.java
 *
 */

package cn.hncu.addr.ui;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;

import cn.hncu.addr.business.AddrBusiness;

/**
 * 
 * @author __chx__
 */
public class ListPanel extends javax.swing.JPanel {
    /** Creates new form ListPanel */
    private JFrame mainFrame = null;
    private JLabel jlbFindAddress = new javax.swing.JLabel();


    public ListPanel(JFrame mainFrame) {
        this.mainFrame = mainFrame;
        initComponents();
        myInitData();
    }

    public ListPanel(JFrame mainFrame, Object[] objs) {
        this.mainFrame = mainFrame;
        initComponents();
        jListAddress.setListData(objs);

        jlbFindAddress
                .setText("u67e5u627eu5230u7684u5730u5740u4fe1u606fuff1a");
        add(jlbFindAddress);
        jlbFindAddress.setBounds(40, 50, 125, 17);
    }

    private void myInitData() {
        AddrBusiness set = new AddrBusiness();
        Object obj[] = set.getAll();
        jListAddress.setListData(obj);
    }

    /**
     * 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.
     */
    private JList<String> getListAddress() {
        return jListAddress;
    }


    private void initComponents() {
        jLabelApp = new javax.swing.JLabel();
        jbtnAdd = new javax.swing.JButton();
        jbtnChange = new javax.swing.JButton();
        jbtnDelete = new javax.swing.JButton();
        jbtnFind = new javax.swing.JButton();
        jScrollPane1 = new javax.swing.JScrollPane();
        jListAddress = new javax.swing.JList();
        jLabel1 = new javax.swing.JLabel();
        jToggleButton1 = new javax.swing.JToggleButton();

        setPreferredSize(new java.awt.Dimension(800, 600));
        setLayout(null);

        jLabelApp.setFont(new java.awt.Font("Microsoft YaHei UI", 1, 36));
        jLabelApp.setForeground(new java.awt.Color(255, 0, 0));
        jLabelApp.setText("    u5730u5740u4fe1u606fApp");
        add(jLabelApp);
        jLabelApp.setBounds(240, 20, 263, 47);

        jbtnAdd.setFont(new java.awt.Font("Microsoft YaHei UI", 1, 14));
        jbtnAdd.setForeground(new java.awt.Color(102, 102, 255));
        jbtnAdd.setText("u6dfbu52a0u5730u5740");
        jbtnAdd.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jbtnAddActionPerformed(evt);
            }
        });
        add(jbtnAdd);
        jbtnAdd.setBounds(120, 360, 120, 60);

        jbtnChange.setFont(new java.awt.Font("Microsoft YaHei UI", 1, 14));
        jbtnChange.setForeground(new java.awt.Color(102, 102, 255));
        jbtnChange.setText("u4feeu6539u5730u5740");
        jbtnChange.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jbtnChangeActionPerformed(evt);
            }
        });
        add(jbtnChange);
        jbtnChange.setBounds(120, 460, 120, 60);

        jbtnDelete.setFont(new java.awt.Font("Microsoft YaHei UI", 1, 14));
        jbtnDelete.setForeground(new java.awt.Color(102, 102, 255));
        jbtnDelete.setText("u5220u9664u5730u5740");
        jbtnDelete.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jbtnDeleteActionPerformed(evt);
            }
        });
        add(jbtnDelete);
        jbtnDelete.setBounds(470, 460, 120, 60);

        jbtnFind.setFont(new java.awt.Font("Microsoft YaHei UI", 1, 14));
        jbtnFind.setForeground(new java.awt.Color(102, 102, 255));
        jbtnFind.setText("u67e5u627eu5730u5740");
        jbtnFind.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jbtnFindActionPerformed(evt);
            }
        });
        add(jbtnFind);
        jbtnFind.setBounds(470, 360, 120, 60);

        jListAddress.setFont(new java.awt.Font("Microsoft YaHei UI", 1, 14));
        jListAddress.setModel(new javax.swing.AbstractListModel() {
            String[] strings = { "" };

            public int getSize() {
                return strings.length;
            }

            public Object getElementAt(int i) {
                return strings[i];
            }
        });
        jScrollPane1.setViewportView(jListAddress);

        add(jScrollPane1);
        jScrollPane1.setBounds(40, 70, 700, 270);

        jLabel1.setText(" u9648u6d69u7fd4");
        add(jLabel1);
        jLabel1.setBounds(700, 510, 60, 17);

        jToggleButton1.setText("u9000u51fa");
        jToggleButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jToggleButton1ActionPerformed(evt);
            }
        });
        add(jToggleButton1);
        jToggleButton1.setBounds(680, 410, 80, 50);
    }

    private void jToggleButton1ActionPerformed(java.awt.event.ActionEvent evt) {
        System.exit(0);
    }

    private void jbtnFindActionPerformed(java.awt.event.ActionEvent evt) {
        mainFrame.setContentPane(new QueryPanel(mainFrame));
        mainFrame.validate();
    }

    private void jbtnDeleteActionPerformed(java.awt.event.ActionEvent evt) {
        if (jListAddress.getSelectedValue() == null) {
            JOptionPane.showMessageDialog(this, "未选中地址！无法删除，请重新选择！");
        } else {
            mainFrame.setContentPane(new DeletePanel(mainFrame,
                    (String) jListAddress.getSelectedValue()));
            mainFrame.validate();
        }
    }

    private void jbtnChangeActionPerformed(java.awt.event.ActionEvent evt) {
        if (jListAddress.getSelectedValue() == null) {
            JOptionPane.showMessageDialog(this, "未选中地址！无法修改，请重新选择！");
        } else {
            mainFrame.setContentPane(new UpdatePanel(mainFrame,
                    (String) jListAddress.getSelectedValue()));
            mainFrame.validate();
        }
    }

    private void jbtnAddActionPerformed(java.awt.event.ActionEvent evt) {
        // System.out.println("aaa");
        mainFrame.setContentPane(new AddPanel(mainFrame));
        mainFrame.revalidate();
    }

    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabelApp;
    private javax.swing.JList jListAddress;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JToggleButton jToggleButton1;
    private javax.swing.JButton jbtnAdd;
    private javax.swing.JButton jbtnChange;
    private javax.swing.JButton jbtnDelete;
    private javax.swing.JButton jbtnFind;

}