d_bookclass.java

来自「图书管理系统」· Java 代码 · 共 269 行

/*
 * D_bookclass.java
 *
 * Created on 2007年6月23日, 下午9:07
 */

package 图书管理系统;
import javax.swing.*;
import java.sql.*;

public class D_bookclass extends javax.swing.JFrame {
    public D_bookclass() {
        initComponents();
        con=connect.getcon();
        BG_B.add(BR_all);
        BG_B.add(BR_class);
        T_class.setEnabled(false);
        B_bstat.setEnabled(false);
        B_bcancel.setEnabled(false);
        this.setTitle("图书信息统计");
        this.setBounds(300,250,500,400);
        this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
         try{
        PreparedStatement sql=con.prepareStatement("select distinct 类别,count(书号) from 图书 group by 类别");
        rs = sql.executeQuery();
        sql=con.prepareStatement("select count(书号) from 图书");
        ResultSet rs2=sql.executeQuery();
        rs2.next();
        String s2=rs2.getString(1);
        String[] rowline={"总计",s2};
        int rows=0,column=0;
        ResultSetMetaData reMeta;
        int i=0,j=0,n=0;
        reMeta=rs.getMetaData();        
        CustomTableModel model=null;
        model=new CustomTableModel(0,name.length,name,dataType);
        bstable.setModel(model);
                  int p=reMeta.getColumnCount();
                    column=p;
                    String[] row=new String[p]; 
                    while(rs.next())
                   { 
                        
                       for(j=0;j<p;j++)
                       {
                        row[j]=rs.getString(j+1);
                        }
                       model.insertRow(i,row);
                       i++;
                        }
                    model.insertRow(i,rowline);
                    bstable.repaint();
                    this.validate();   
        }
        catch(Exception ee)
         {
       JOptionPane.showMessageDialog(null,"数据库访问失败！");
 ee.printStackTrace();
    }
    }
    
    /** 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.
     */
    // <editor-fold defaultstate="collapsed" desc=" 生成的代码 ">//GEN-BEGIN:initComponents
    private void initComponents() {
        BG_B = new javax.swing.ButtonGroup();
        T_class = new javax.swing.JTextField();
        B_bstat = new javax.swing.JButton();
        B_bcancel = new javax.swing.JButton();
        BR_class = new javax.swing.JRadioButton();
        BR_all = new javax.swing.JRadioButton();
        jScrollPane1 = new javax.swing.JScrollPane();
        bstable = new javax.swing.JTable();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        B_bstat.setText("\u7edf\u8ba1");
        B_bstat.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                B_bstatActionPerformed(evt);
            }
        });

        B_bcancel.setText("\u53d6\u6d88");
        B_bcancel.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                B_bcancelActionPerformed(evt);
            }
        });

        BR_class.setText("\u4ece\u6587\u672c\u6846\u8f93\u5165\u8981\u7edf\u8ba1\u7684\u7c7b\u522b:");
        BR_class.setBorder(javax.swing.BorderFactory.createEmptyBorder(0, 0, 0, 0));
        BR_class.setMargin(new java.awt.Insets(0, 0, 0, 0));
        BR_class.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                BR_classActionPerformed(evt);
            }
        });

        BR_all.setText("\u7edf\u8ba1\u6240\u6709\u56fe\u4e66");
        BR_all.setBorder(javax.swing.BorderFactory.createEmptyBorder(0, 0, 0, 0));
        BR_all.setMargin(new java.awt.Insets(0, 0, 0, 0));
        BR_all.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                BR_allActionPerformed(evt);
            }
        });

        bstable.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null}
            },
            new String [] {
                "Title 1", "Title 2", "Title 3", "Title 4"
            }
        ));
        jScrollPane1.setViewportView(bstable);

        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(69, 69, 69)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(BR_all)
                    .add(layout.createSequentialGroup()
                        .add(BR_class)
                        .add(23, 23, 23)
                        .add(T_class, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 113, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                        .add(61, 61, 61)
                        .add(B_bstat)))
                .addContainerGap(org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
            .add(org.jdesktop.layout.GroupLayout.TRAILING, layout.createSequentialGroup()
                .addContainerGap(433, Short.MAX_VALUE)
                .add(B_bcancel)
                .addContainerGap())
            .add(layout.createSequentialGroup()
                .addContainerGap()
                .add(jScrollPane1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 490, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .addContainerGap()
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(BR_class)
                    .add(T_class, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                    .add(B_bstat))
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(layout.createSequentialGroup()
                        .add(13, 13, 13)
                        .add(BR_all))
                    .add(layout.createSequentialGroup()
                        .add(28, 28, 28)
                        .add(B_bcancel)))
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED, 10, Short.MAX_VALUE)
                .add(jScrollPane1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 295, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        );
        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void B_bcancelActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_B_bcancelActionPerformed
// TODO 将在此处添加您的处理代码：
        this.setVisible(false);
    }//GEN-LAST:event_B_bcancelActionPerformed

    private void B_bstatActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_B_bstatActionPerformed
// TODO 将在此处添加您的处理代码：
        try{
        PreparedStatement sql=con.prepareStatement("select 类别,count(书号) from 图书 where 类别=? group by 类别");
        sql.setString(1,T_class.getText().trim());
        rs=sql.executeQuery();
        PaintTable paint=new PaintTable(rs,name,bstable,this,dataType);
        }
        catch(Exception ee)
         {
       JOptionPane.showMessageDialog(null,"数据库访问失败！");
 ee.printStackTrace();
    }
    }//GEN-LAST:event_B_bstatActionPerformed

    private void BR_allActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_BR_allActionPerformed
// TODO 将在此处添加您的处理代码：
        try{
        T_class.setEnabled(false);
        B_bstat.setEnabled(false);
        B_bcancel.setEnabled(false);
        PreparedStatement sql=con.prepareStatement("select distinct 类别,count(书号) from 图书 group by 类别");
        rs = sql.executeQuery();
        sql=con.prepareStatement("select count(书号) from 图书");
        ResultSet rs2=sql.executeQuery();
        rs2.next();
        String s2=rs2.getString(1);
        String[] rowline={"总计",s2};
        int rows=0,column=0;
        ResultSetMetaData reMeta;
        int i=0,j=0,n=0;
        reMeta=rs.getMetaData();        
        CustomTableModel model=null;
        model=new CustomTableModel(0,name.length,name,dataType);
        bstable.setModel(model);
                  int p=reMeta.getColumnCount();
                    column=p;
                    String[] row=new String[p]; 
                    while(rs.next())
                   { 
                        
                       for(j=0;j<p;j++)
                       {
                        row[j]=rs.getString(j+1);
                        }
                       model.insertRow(i,row);
                       i++;
                        }
                    model.insertRow(i,rowline);
                    bstable.repaint();
                    this.validate();   
        }
        catch(Exception ee)
         {
       JOptionPane.showMessageDialog(null,"数据库访问失败！");
 ee.printStackTrace();
    }
    }//GEN-LAST:event_BR_allActionPerformed

    private void BR_classActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_BR_classActionPerformed
// TODO 将在此处添加您的处理代码：
        T_class.setEnabled(true);
        B_bstat.setEnabled(true);
        B_bcancel.setEnabled(true);
    }//GEN-LAST:event_BR_classActionPerformed
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new D_bookclass().setVisible(true);
            }
        });
    }
    
    // 变量声明 - 不进行修改//GEN-BEGIN:variables
    private javax.swing.ButtonGroup BG_B;
    private javax.swing.JRadioButton BR_all;
    private javax.swing.JRadioButton BR_class;
    private javax.swing.JButton B_bcancel;
    private javax.swing.JButton B_bstat;
    private javax.swing.JTextField T_class;
    private javax.swing.JTable bstable;
    private javax.swing.JScrollPane jScrollPane1;
    // 变量声明结束//GEN-END:variables
    private Connection con;
    private Statement stmt;
   private String[] name={"类别","库存量"};
   private String sql;
   private Class[] dataType={String.class,String.class};
   private ResultSet rs;
}