allinfo.java~11~

这是一个用JAVA编写的书籍借阅管理系统

package bookmanager;

import javax.swing.*;
import com.borland.jbcl.layout.*;
import java.awt.*;
import java.sql.*; //引入包java.sql.*;
import javax.swing.table.*; //引入包sqljavax.swing.table.*;
import java.util.*;
import java.awt.event.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class AllInfo
    extends JFrame {
  ResultSet rs; //定义结果集
  private DBManager db = new DBManager(); //定义数据库操作对象
  Vector tempvector = new Vector(1, 1);
  DefaultTableModel model = new DefaultTableModel(); //定义DefaultTableModel模型
  JTable jTableResult = new JTable(model);

  XYLayout xYLayout1 = new XYLayout();
  JLabel jLabel2 = new JLabel();
  JScrollPane jScrollPane1 = new JScrollPane();
  JLabel jLabel1 = new JLabel();
  JTextField jTextFieldReader = new JTextField();
  JTextField jTextFieldBookName = new JTextField();
  JButton jButtonSearch = new JButton();

  public AllInfo() {
    try {
      jbInit();
    }
    catch (Exception e) {
      e.printStackTrace();
    }
  }

  public static void main(String[] args) {
    AllInfo allInfo = new AllInfo();
  }

  private void jbInit() throws Exception {
    jLabel2.setFont(new java.awt.Font("Dialog", 0, 16));
    jLabel2.setText("书名：");
    this.getContentPane().setLayout(xYLayout1);
    jLabel1.setText("借阅者：");
    jLabel1.setFont(new java.awt.Font("Dialog", 0, 16));
    jTextFieldReader.setText("");
    jTextFieldReader.setFont(new java.awt.Font("Dialog", 0, 16));
    jTextFieldBookName.setText("");
    jTextFieldBookName.setFont(new java.awt.Font("Dialog", 0, 16));
    jButtonSearch.setText("查询");
    jButtonSearch.addMouseListener(new AllInfo_jButtonSearch_mouseAdapter(this));
    jButtonSearch.setFont(new java.awt.Font("Dialog", 0, 16));
    xYLayout1.setWidth(537);
    xYLayout1.setHeight(349);
    // model中加入列名
    model.addColumn("借阅者");
    model.addColumn("书名");
    model.addColumn("借阅日期");
    model.addColumn("还入日期");
    model.addColumn("备注");

    this.getContentPane().add(jTextFieldReader,
                              new XYConstraints(112, 15, 100, -1));
    this.getContentPane().add(jLabel2, new XYConstraints(216, 13, 51, 29));
    this.getContentPane().add(jLabel1, new XYConstraints(31, 15, 78, 29));
    this.getContentPane().add(jTextFieldBookName,
                              new XYConstraints(268, 13, 122, 31));
    this.getContentPane().add(jButtonSearch, new XYConstraints(416, 12, 87, -1));
    this.getContentPane().add(jScrollPane1, new XYConstraints(35, 70, 456, 238));
    jScrollPane1.add(jTableResult, null);
  }

  void jButtonSearch_mouseClicked(MouseEvent e) {

    String strSQL;
    //
    boolean isFirst = true;
    //检验书目是否存在
    strSQL = "select * from BookBorrow ";
    if (!jTextFieldReader.getText().trim().equals("")) {
      strSQL = strSQL + " where studentname='" +
          jTextFieldReader.getText().trim() +
          "'";
      isFirst = false;
    }
    if (!jTextFieldBookName.getText().trim().equals("")) {
      if (isFirst) {
        strSQL = strSQL + " where bookname='" +
            jTextFieldBookName.getText().trim() +
            "'";
      }
      else {
        strSQL = strSQL + " and bookname='" + jTextFieldBookName.getText().trim() +
            "'";
      }
    }

    rs = db.getResult(strSQL);
    boolean isexist = false;
    try {
      isexist = rs.first();
    }
    catch (SQLException ex1) {
      JOptionPane.showMessageDialog(null, "ex1.toString() " + ex1.toString());
    }
    //若书目不存在，提示警告信息提醒用户
    if (!isexist) {
      JOptionPane.showMessageDialog(null, "书库中没有书目，请确认！");
    }
    //若存在，执行更新操作
    else {
      //首先清空集合中的对象
      tempvector.clear();
      //清空model中的对象
      for (int n = model.getRowCount() - 1; n >= 0; n--)
        model.removeRow(n);

      try {
        rs.beforeFirst();
        while (rs.next()) {
             tempvector=new Vector(1,1);
          tempvector.add(rs.getString("studentname"));
          tempvector.add(rs.getString("bookname"));
          tempvector.add(rs.getString("borrowdate"));
          tempvector.add(rs.getString("returndate"));
          tempvector.add(rs.getString("comment"));
           model.addRow(tempvector);

          // System.out.println(rs.getString("studentname"));
          // System.out.println(rs.getString("bookname"));
          // System.out.println(rs.getString("borrowdate"));
          // System.out.println(rs.getString("returndate"));
          // System.out.println(rs.getString("comment"));
          System.out.println("---------------------------------");

          for (int n = 0; n < tempvector.size(); n++) {
            System.out.println( (String) tempvector.get(n));
          }
           tempvector.clear();
        }
      }
      catch (SQLException ex) {
        JOptionPane.showMessageDialog(null, "ex.toString() " + ex.toString());
      }

    }

  }
}

class AllInfo_jButtonSearch_mouseAdapter
    extends java.awt.event.MouseAdapter {
  AllInfo adaptee;

  AllInfo_jButtonSearch_mouseAdapter(AllInfo adaptee) {
    this.adaptee = adaptee;
  }

  public void mouseClicked(MouseEvent e) {
    adaptee.jButtonSearch_mouseClicked(e);
  }
}