search.java

若已安装Jbuilder X

package studentms;

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


public class search extends JFrame {

  XYLayout xYLayout1 = new XYLayout();
  JLabel jLabel1 = new JLabel();
  JTextField jTContent = new JTextField();
  JButton jBOK = new JButton();
  JButton jBCancel = new JButton();

  String searchType =new String();     //标记查询类别
  String searchValue=new String();     //标记查询值

  String infoShowType=new String();      //标记要显示窗体的类型，综合、修改还是删除

  Database DB=new Database();
  ResultSet rs ;
  String sql=new String();

  JRadioButton jRByName = new JRadioButton();
  JRadioButton jRByNum = new JRadioButton();
  JRadioButton jRByClass = new JRadioButton();
  ButtonGroup group=new ButtonGroup();

  public search() {
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  private void jbInit() throws Exception {
    jLabel1.setFont(new java.awt.Font("Dialog", 0, 12));
    xYLayout1.setWidth(298);
    xYLayout1.setHeight(130);
    this.getContentPane().setLayout(xYLayout1);
    jBOK.setFont(new java.awt.Font("Dialog", 0, 12));
    jBOK.setText("确  定");
    jBOK.addActionListener(new search_jBOK_actionAdapter(this));
    jBCancel.setFont(new java.awt.Font("Dialog", 0, 12));
    jBCancel.setText("取  消");
    jBCancel.addActionListener(new search_jBCancel_actionAdapter(this));
    jTContent.setFont(new java.awt.Font("Dialog", 0, 12));
    jTContent.setText("");
    this.setTitle("人员查询");
    jRByName.setFont(new java.awt.Font("Dialog", 0, 12));
    jRByName.setText("按姓名");
    jRByName.addActionListener(new search_jRByName_actionAdapter(this));
    jRByNum.setFont(new java.awt.Font("Dialog", 0, 12));
    jRByNum.setText("按学号");
    jRByNum.addActionListener(new search_jRByNum_actionAdapter(this));
    jRByClass.setFont(new java.awt.Font("Dialog", 0, 12));
    jRByClass.setText("按班级");
    jRByClass.addActionListener(new search_jRByClass_actionAdapter(this));
    group.add(jRByName);
    group.add(jRByNum);
    group.add(jRByClass);
    this.getContentPane().add(jLabel1,  new XYConstraints(26, 23, 161, 23));
    this.getContentPane().add(jTContent, new XYConstraints(30, 57, 130, 25));
    this.getContentPane().add(jBOK,    new XYConstraints(200, 23, 66, 24));
    this.getContentPane().add(jBCancel,     new XYConstraints(200, 59, 66, 24));
    this.getContentPane().add(jRByName, new XYConstraints(24, 103, 66, 17));
    this.getContentPane().add(jRByNum, new XYConstraints(95, 103, -1, 16));
    this.getContentPane().add(jRByClass,  new XYConstraints(168, 103, 69, 16));
  }

  //设置标签内容
  void setLabelText(String content){
    jLabel1.setText(content);
  }

  //设置查询类型
  void setType(String i){
    searchType=i;
  }

  //设置要显示的人员信息窗体
  void setShowType(String type){
    infoShowType=type;
  }

  //退出
  void jBCancel_actionPerformed(ActionEvent e) {
    this.dispose();
  }

  //显示结果集为多个时的列表
  void listShow(){
    stuShow stuList=new stuShow();
    Dimension dlgSize = stuList.getPreferredSize();
    Dimension frmSize = getSize();
    Point loc = getLocation();
    stuList.setLocation((frmSize.width - dlgSize.width) / 2 + loc.x, (frmSize.height - dlgSize.height) / 2 + loc.y);
    stuList.pack();
    stuList.show() ;
    stuList.resultShow(rs);
  }

 //参数为学生信息类，显示查询到的内容
  void setContent(stuInfo result){
    try{
      result.jTNum.setText(rs.getString("Num"));
      result.jTName.setText(rs.getString("Name"));
      result.jTSex.setText(rs.getString("Sex"));
      result.jTHome.setText(rs.getString("Home"));
      result.jTClass.setText(rs.getString("Class"));
      result.jTEthnic.setText(rs.getString("Ethnic"));
      result.jTBirth.setText(rs.getString("Birthday"));
      result.nullSet() ;
    }
    catch(SQLException ex){
    }
  }

 //显示查询结果
  void showResult(){
      if(infoShowType=="edit"){
         setContent(menuClass.editInfo);
         menuClass.editInfo.setAbled(true);
         menuClass.editInfo.setButton(true,true,true,true,true);
      }
      else if(infoShowType=="del"){
        setContent(menuClass.delInfo );
        menuClass.delInfo .setAbled(false);
        menuClass.delInfo .setButton(true,true,true,false,false);
      }
      else{
        menuClass.SIFall .setLocation(200, 160);
        menuClass.SIFall.pack();
        menuClass.SIFall.show();
        setContent(menuClass.SIFall);
        menuClass.SIFall.setAbled(false);
        menuClass.SIFall.setButton(true, true, true, false, false);
      }
   }

  //执行查询操作
  void jBOK_actionPerformed(ActionEvent e) {
     if(jTContent.getText().equals("")){
       JOptionPane.showMessageDialog(null, "查询值不能为空!");
     }
     else{
       sql = "select * from stuTable ";

       //根据选项判断查询的类型
       if (searchType == "Name") {
         sql = sql + "  where  Name='" + jTContent.getText().toString() + "'";
       }
       else if (searchType == "Num") {
         sql = sql + "  where  Num=" + Integer.parseInt(jTContent.getText());
       }
       else if (searchType == "Class") {
         sql = sql + "where Class='" + jTContent.getText().toString() + "'";
       }

       rs = DB.getResult(sql);
       try {
         if (rs.first()) { //判断记录是否存在
           if (rs.isLast()) { //判断是否只有一条记录，若是，直接显示，否则显示列表
             rs.beforeFirst();
             rs.next();
             showResult();
             this.dispose();
           }
           else {
             listShow();
             this.dispose();
           }
         }
         else {
           JOptionPane.showMessageDialog(null, "此人不存在!");
         }
       }
       catch (SQLException ex) {
         JOptionPane.showMessageDialog(null, " search failed!");
       }
     }

  }

  //响应单选按钮选中时的事件
  void jRByName_actionPerformed(ActionEvent e) {
       jLabel1.setText("请输入要查询人员的姓名：");
       jTContent.setEnabled(true);
       setType("Name");
  }

  void jRByNum_actionPerformed(ActionEvent e) {
    jLabel1.setText("请输入要查询人员的学号：");
    jTContent.setEnabled(true);
    setType("Num");
  }

  void jRByClass_actionPerformed(ActionEvent e) {
    jLabel1.setText("请输入要查询人员的班级：");
    jTContent.setEnabled(true);
    setType("Class");
  }

}

//*******************以下是监听类部分*******************
class search_jBCancel_actionAdapter implements java.awt.event.ActionListener {
  search adaptee;

  search_jBCancel_actionAdapter(search adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jBCancel_actionPerformed(e);
  }
}

class search_jBOK_actionAdapter implements java.awt.event.ActionListener {
  search adaptee;

  search_jBOK_actionAdapter(search adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jBOK_actionPerformed(e);
  }
}

class search_jRByName_actionAdapter implements java.awt.event.ActionListener {
  search adaptee;

  search_jRByName_actionAdapter(search adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jRByName_actionPerformed(e);
  }
}

class search_jRByNum_actionAdapter implements java.awt.event.ActionListener {
  search adaptee;

  search_jRByNum_actionAdapter(search adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jRByNum_actionPerformed(e);
  }
}

class search_jRByClass_actionAdapter implements java.awt.event.ActionListener {
  search adaptee;

  search_jRByClass_actionAdapter(search adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jRByClass_actionPerformed(e);
  }
}