searchpanel.java

java私塾里的图书进销存项目的源代码,非常不错,J2SE基础知识复习非常有帮助!

package cn.javass.bookmgr.user.ui.panels;

import java.awt.*;
import javax.swing.JPanel;

import com.borland.jbcl.layout.*;
import javax.swing.*;
import java.awt.event.*;
import cn.javass.bookmgr.util.uiutil.ChangePanel;
import cn.javass.bookmgr.MainFrame;
import cn.javass.bookmgr.user.business.factory.UserFactory;
import cn.javass.bookmgr.user.valueobject.UserModel;
import cn.javass.bookmgr.user.valueobject.QueryUserModel;
import java.util.Collection;
/**
 * 用户模块表现层用于用户查询的Panel
 *
 * <p>Title: Java私塾第一个Java项目——图书进销存系统（单机版）</p>
 * <p>Description: 网址:<a href="http://www.javass.cn">http://www.javass.cn</a>
 * 新电话:[phone]   新地址:北京市海淀区厂洼路5号院深博达商务楼5层</p>
 * <p>Copyright: Copyright (c) 2008</p>
 * <p>Company: Java私塾</p>
 * @author Java私塾
 * @version 1.0
 */
public class SearchPanel extends JPanel {
  //以下为本界面需要的组件定义

  XYLayout xYLayout1 = new XYLayout();
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JLabel jLabel4 = new JLabel();
  JTextField txt_userId = new JTextField();
  JTextField txt_name = new JTextField();
  JComboBox cmb_type = new JComboBox();
  JButton btn_search = new JButton();
  JButton btn_back = new JButton();

  /**
   * 用来保持对主窗体的引用
   */
  MainFrame mf = null;

  /**
   * 构建用户查询的Panel
   * @param mf 主窗体的引用
   */
  public SearchPanel(MainFrame mf) {
    try {
      this.mf = mf;
      jbInit();
    }
    catch(Exception ex) {
      ex.printStackTrace();
    }
  }
  /**
   * 真正进行组件初始化，并构建整个界面
   * @throws Exception
   */
  void jbInit() throws Exception {
    jLabel1.setFont(new java.awt.Font("Dialog", 1, 30));
    //为用户类型的下拉列表设置初始值
    //添加一个为空的值，因为这是查询，可以不按照类型查询
    this.cmb_type.addItem("");
    this.cmb_type.addItem(UserModel.TYPE_1);
    this.cmb_type.addItem(UserModel.TYPE_2);
    this.cmb_type.addItem(UserModel.TYPE_3);
    this.cmb_type.addItem(UserModel.TYPE_4);
    this.cmb_type.addItem(UserModel.TYPE_5);
    this.cmb_type.addItem(UserModel.TYPE_6);


    jLabel1.setText("查询用户");
    this.setLayout(xYLayout1);
    jLabel2.setText("用户编号");
    jLabel3.setText("用户姓名");
    jLabel4.setText("用户类型");

    txt_userId.setText("");
    txt_name.setText("");
    btn_search.setText("查询");
    btn_search.addActionListener(new SearchPanel_btn_search_actionAdapter(this));
    btn_back.setText("返回");
    btn_back.addActionListener(new SearchPanel_btn_back_actionAdapter(this));
    xYLayout1.setWidth(497);
    xYLayout1.setHeight(413);
    this.add(jLabel1, new XYConstraints(96, 12, 377, 82));
    this.add(jLabel2,   new XYConstraints(13, 91, 77, 30));
    this.add(jLabel3,    new XYConstraints(238, 90, 77, 30));
    this.add(jLabel4,     new XYConstraints(13, 165, 77, 30));
    this.add(txt_userId,  new XYConstraints(63, 93, 166, 33));
    this.add(txt_name,    new XYConstraints(295, 93, 166, 33));
    this.add(cmb_type,    new XYConstraints(63, 163, 166, 33));
    this.add(btn_search, new XYConstraints(142, 343, 117, 46));
    this.add(btn_back,     new XYConstraints(307, 343, 117, 46));
  }
  /**
   * 点击查询按钮的事件处理
   * @param e Action事件对象
   */
  void btn_search_actionPerformed(ActionEvent e) {
    //1:收集参数
    String id = this.txt_userId.getText();
    String name = this.txt_name.getText();
    String type = (String)this.cmb_type.getSelectedItem();

    //2:组织参数
    QueryUserModel um = new QueryUserModel();
    um.setId(id);
    um.setName(name);
    um.setType(um.typeStringToInt(type));
    //3:调用逻辑层Api，并获取返回值
    Collection col = UserFactory.getInstance().createUserEbi().getByCondition(um);
    //4:根据返回值选择新的Panel
    ChangePanel.changePanel(mf,new ListPanel(mf,true,col));
  }
  /**
   * 点击返回按钮的事件处理
   * @param e Action事件对象
   */
  void btn_back_actionPerformed(ActionEvent e) {
    ChangePanel.changePanel(mf,new ListPanel(mf,false,null));
  }
}
//以下为事件处理中的Adaper类
class SearchPanel_btn_search_actionAdapter implements java.awt.event.ActionListener {
  SearchPanel adaptee;

  SearchPanel_btn_search_actionAdapter(SearchPanel adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.btn_search_actionPerformed(e);
  }
}

class SearchPanel_btn_back_actionAdapter implements java.awt.event.ActionListener {
  SearchPanel adaptee;

  SearchPanel_btn_back_actionAdapter(SearchPanel adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.btn_back_actionPerformed(e);
  }
}