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云代码 - java代码库

图书管理系统借阅查询界面

2018-04-11 作者： 云代码会员举报

[java]代码库

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package com.library.view;
 
 
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.List;
 
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.event.TableModelListener;
import javax.swing.table.TableModel;
 
import com.library.biz.impl.BookBiz;
import com.library.biz.impl.BookBizImpl;
import com.library.biz.impl.UsersBiz;
import com.library.biz.impl.UsersBizImpl;
import com.libraty.entity.Book;
import com.libraty.entity.Users;
 
public class UserBookInquiry extends JInternalFrame{
    private static final long serialVersionUID = 1L;
     
    private JScrollPane panel_tablet=null; /** 可滚动面板 */
    private JPanel panel_table=null;/** 表格面板 */
    private JPanel panel_buttons=null; /** 按钮面板 */
     
    private JTable table=null; /** 表格控件，用来存放列表数据 */
    private JLabel lb_type=null; /** 类型标签 */
     
    private JComboBox<String> cb_type=null; /** 查询类型选择框，下拉框 */
     
    private JButton btn_search=null;  /** 查询按钮 */
    private JButton btn_borrow=null; /** 借书按钮 */
    private JButton btn_exit=null; /** 退出按钮 */
     
    /** 属性依赖 */
    private BookBiz bookBiz;   
    private UsersBiz usersBiz;
    /** 保存用户信息的属性 */
    private Users user;
    /** 用户临时存放图书编号 */
    private int book_id;
     
    /** 初始化块 */
    {
        this.usersBiz=new UsersBizImpl();
        this.bookBiz=new BookBizImpl();
        init();
         
    }
     
    public UserBookInquiry(){
         
    }
    public UserBookInquiry(Users user){
        this.user=user;/** 一定要调用初始化方法，否则空指针 */
    }
     
    private void init()
    {
        table=new JTable();
        panel_table=new JPanel(new BorderLayout());/** 表格面板    new BorderLayout()边框布局*/
        panel_tablet=new JScrollPane(table);
        panel_table.setBorder(BorderFactory.createTitledBorder(BorderFactory.createRaisedBevelBorder(),"图书信息列表"));
         
        panel_buttons = new JPanel(new GridLayout(7, 1, 0, 30));/** 按钮面板 */
        panel_buttons.setBorder(BorderFactory.createTitledBorder(BorderFactory.createRaisedBevelBorder(),"查询条件"));
         
        /**
         * 文本类型
         * 下拉框
         * 按钮
         * */
        lb_type=new JLabel("查询类型：");
        cb_type=new JComboBox<String>(new String[]{"查询全部图书","查询热门图书","查询可借图书","查询不可借图书"});
        btn_search=new JButton("查询"); /** 查询按钮 */
        btn_borrow=new JButton("借书"); /** 查借书按钮 */
        btn_exit=new JButton("退出窗口"); /** 退出窗口按钮 */
        /** 给按钮注册侦听器*/
        registerActionListener();
        /** 拼装 */
        panel_table.add(panel_tablet);
//      panel_table.add(table);
         
        panel_buttons.add(lb_type);
        panel_buttons.add(cb_type);
        panel_buttons.add(btn_search);
        panel_buttons.add(btn_borrow);
        panel_buttons.add(new JLabel());/** 空白 */
        panel_buttons.add(new JLabel());/** 空白 */
        panel_buttons.add(btn_exit);
         
        this.add(panel_table,BorderLayout.CENTER);
        this.add(panel_buttons,BorderLayout.EAST);
         
        this.setTitle("图书信息查询界面");
        this.setIconifiable(true); /** 设置窗体是否可以最小化 */
        this.setClosable(true); /** 内嵌窗体关闭 */
        this.setDefaultCloseOperation(DISPOSE_ON_CLOSE); /** 设置窗体可以关闭，类型是隐藏自己，释放所占用内存 */
        this.setSize(520, 500); /** 设置窗体大小 */
        this.setVisible(true);
         
    }
     
    /** 定义一个显瘦图书数据的数据模型 */
    private class BookDateModel implements TableModel{
         
        /** 显示什么数据 */
        private List<Book> book_list=null;
         
        public void setBooks_list(List<Book> book_list){
            this.book_list = book_list;
        }
 
        @Override
        public int getRowCount() { /** 需要显示多少行 */
            return book_list.size();
        }
 
        @Override
        public int getColumnCount() { /** 显示多少列 */
            return 4;
        }
 
        @Override /** select book_id,book_name,book_count,status from book，获取列名的方法 */
        public String getColumnName(int columnIndex) { /** 根据行号，列号获取值 */
            if (columnIndex==0) {
                return "图书编号";
            }else if (columnIndex==1)
            {
                return "图书名称";
            }else if (columnIndex==2)
            {
                return "借阅次数";
            }else if (columnIndex==3)
            {
                return "是否可借";
            }else{
                return "出错";
            }
        }
 
        @Override
        public Class<?> getColumnClass(int columnIndex) {
            return String.class;
        }
 
        @Override
        public boolean isCellEditable(int rowIndex, int columnIndex) {
            return false;
        }
 
        @Override
        public Object getValueAt(int rowIndex, int columnIndex) {
            Book book=book_list.get(rowIndex);
            if (columnIndex==0) {
                return book.getBook_id();
            }else if (columnIndex==1)
            {
                return book.getBook_name();
            }else if (columnIndex==2)
            {
                return book.getBook_count();
            }else if (columnIndex==3)
            {
                return book.getStatus()==1?"可借":"不可借";
            }else{
                return "出错";
            }
             
        }
 
        @Override
        public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
             
        }
 
        @Override
        public void addTableModelListener(TableModelListener l) {
             
        }
 
        @Override
        public void removeTableModelListener(TableModelListener l) {
             
        }
         
    }
     
    /** 给所有按钮注册侦听器 */
    private void registerActionListener()
    {
        /** 给table控件注册侦听器 */
        table.addMouseListener(new MouseAdapter() {
            public void mouseClicked(MouseEvent e) {
                /** 获取用户选中图书的编号 */
                int row_num=table.getSelectedRow();
                book_id=(int) table.getValueAt(row_num, 0);
                 
                 
            }
        });
         
        /** 给借书按钮注册侦听器 */
        btn_borrow.addActionListener(new ActionListener() {
             
            @Override
            public void actionPerformed(ActionEvent e) {
                if (book_id==0) {
                    JOptionPane.showMessageDialog(UserBookInquiry.this,  "请选择你要借的书！");
                    return;
                }
                 
                /** 1.获取用户选中的图书   2.调用biz中的方法完成借阅功能 */
                boolean tmp=usersBiz.borrowBook(user.getUser_id(), book_id);
                if (tmp) {
                    JOptionPane.showMessageDialog(UserBookInquiry.this, "借书成功");
                }else
                {
                    JOptionPane.showMessageDialog(UserBookInquiry.this, "借书不成功");
                }
            }
        });
         
        /** 给查询按钮注册侦听器 */
        btn_search.addActionListener(new ActionListener() {
             
            @Override
            public void actionPerformed(ActionEvent e) {
                List<Book> books=null;
                int index=cb_type.getSelectedIndex();/** 获取下拉框选项的索引，从0开始 */
                if (index==0) {
                    books=bookBiz.queryAll(); /** 查询全部书籍 */
                }
                if (index==1) {
                    books=bookBiz.queryHotBooks(); /** 查询热门图书信息 */
                }
                if (index==2) {
                    books=bookBiz.queryCanBorrowBooks(); /** 查询可借图书信息 */
                }
                if (index==3) {
                    books=bookBiz.queryNotCanBorrowBooks(); /** 查询不可借图书信息 */
                }
                refreshTable(books);
            }
        });
         
         
        btn_exit.addActionListener(new ActionListener() {
             
            @Override
            public void actionPerformed(ActionEvent e) {
                dispose();
            }
        });
         
    }
     
    /** 定义一个刷新表的方法 */
    private void refreshTable(List<Book> books)
    {
        BookDateModel dm = new BookDateModel();
        dm.setBooks_list(books);/** 给书籍集合赋值，不然没有书籍可以显示 */
        table.setModel(dm);/** 现在把模型（含有数据的模型）交给Table控件 */
    }
     
}


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