5

                                          **学生管理系统二**

 package com.imau.view;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.List;

import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;

import com.imau.base.BaseFraem;
import com.imau.controller.StudentController;
   import com.imau.dao.student.StudentDaoImpl;
import com.imau.entry.PageEntity;
import com.imau.entry.Student;

public class StudentListView extends BaseFraem {

private StudentController controller;
private PageEntity<Student> pageEntity;
// 组件
// 第一部分
// 搜索框
private JTextField tsearch;
// 搜索按钮
private JButton searchBtn;
private JComboBox<String> searchBox;

private String item[] = { "姓名", "学号", "年龄", "性别" };
// 添加学生按钮
private JButton addStu;
private JButton updateStu;
private JButton delStu;
// 第二部分
// 学生列表
private JTable table;
private String columnNames[] = { "序号", "ID", "姓名", "学号", "年龄", "性别", "民族" };
private Object rowData[][];
private JScrollPane scrollPane;
DefaultTableModel tableModel;
// 第三部分
// 首页 上一页 下一页 尾页 跳转 按钮
private JButton homeBtn, upBtn, nextBtn, endBtn, jumpBtn;
// 跳转输入框
private JTextField tjump;
// 显示页面基本信息
private JLabel lpage;
// 装载每一部分的组件
private JPanel panel, panel3;

public StudentListView() {
	controller = new StudentController();
	pageEntity = new PageEntity<>(new StudentDaoImpl());
	initListData();
	this.setJMenuBar(initMenu());
	init();
	setFraem();
}

// 初始表格数据
private void initListData() {

	List<Student> list = pageEntity.getPageData();
	rowData = new Object[list.size()][7];
	for (int i = 0; i < list.size(); i++) {
		 
		rowData[i][0] = i + 1;
		rowData[i][1] = list.get(i).getId();
		rowData[i][2] = list.get(i).getName();
		rowData[i][3] = list.get(i).getNo();
		rowData[i][4] = list.get(i).getAge();
		rowData[i][5] = list.get(i).getSex();
		rowData[i][6] = list.get(i).getNation();
	}

}

// 参数：数据列表
private void UpTabltUI(List<Student> list) {

	// 2.数据清空
	tableModel.setRowCount(0);
	// 3.重新添加数据
	for (int i = 0; i < list.size(); ++i) {

		Object data[] = new Object[tableModel.getColumnCount()];

		data[0] = i + 1;
		data[1] = list.get(i).getId();
		data[2] = list.get(i).getName();
		data[3] = list.get(i).getNo();
		data[4] = list.get(i).getAge();
		data[5] = list.get(i).getSex();
		data[6] = list.get(i).getNation();

		tableModel.addRow(data);
	}

	

	String info = "共" + pageEntity.getTotalCount() + "条 " + pageEntity.getPageNo() + "/"
			+ pageEntity.getTotalPage();
	lpage.setText(info);
	
	// 4.刷新
	// 数据更新
	table.invalidate();

	// 数据更新
	// tableModel.fireTableDataChanged();

}

private void initEnvent() {

	searchBtn.addActionListener(new MyListener2());
	addStu.addActionListener(new MyListener2());
	updateStu.addActionListener(new MyListener2());
	delStu.addActionListener(new MyListener2());

	homeBtn.addActionListener(new MyListener2());
	upBtn.addActionListener(new MyListener2());
	nextBtn.addActionListener(new MyListener2());
	endBtn.addActionListener(new MyListener2());
	jumpBtn.addActionListener(new MyListener2());
}

private void init() {

	tsearch = new JTextField(10);
	searchBtn = new JButton("搜索");
	searchBox = new JComboBox<>(item);

	addStu = new JButton("添加");
	updateStu = new JButton("修改");
	delStu = new JButton("删除");

	tableModel = new DefaultTableModel(rowData, columnNames);
	table = new JTable(tableModel);
	table.setRowHeight(30);
	
	 
	scrollPane = new JScrollPane(table);

	homeBtn = new JButton("首页");
	upBtn = new JButton("上一页");
	nextBtn = new JButton("下一页");
	endBtn = new JButton("尾页");
	jumpBtn = new JButton("跳转");
	tjump = new JTextField(5);

	String info = "共" + pageEntity.getTotalCount() + "条 " + pageEntity.getPageNo() + "/"
			+ pageEntity.getTotalPage();

	lpage = new JLabel(info);

	panel = new JPanel();
	panel3 = new JPanel();

	panel.add(searchBox);
	panel.add(tsearch);
	panel.add(searchBtn);
	panel.add(addStu);
	panel.add(updateStu);
	panel.add(delStu);

	panel3.add(lpage);
	panel3.add(homeBtn);
	panel3.add(upBtn);
	panel3.add(nextBtn);
	panel3.add(endBtn);
	panel3.add(tjump);
	panel3.add(jumpBtn);

	this.add(panel, BorderLayout.NORTH);
	this.add(scrollPane, BorderLayout.CENTER);
	this.add(panel3, BorderLayout.SOUTH);
	this.pack();
	initEnvent();
}

class MyListener2 implements ActionListener {

	@Override
	public void actionPerformed(ActionEvent e) {

		// 添加学生
		if (e.getSource() == addStu) {

			new StudentInfoView(null);
			dispose();
		}

		// 修改学生

		if (e.getSource() == updateStu) {

			// 1.选择行
			int row = table.getSelectedRow();

			if (row != -1) {

				// 2.获取选择行ID的列值
				long id = (Long) table.getValueAt(row, 1);
				// 3.查询对象
				Student student = controller.findStudent(id);
				// 4.传入到修改页面

				new StudentInfoView(student);
				dispose();
			} else {

			}

		}

		// 删除学生

		if (e.getSource() == delStu) {

			// 1.选择行
			int row = table.getSelectedRow();

			if (row != -1) {

				
				 
				
				// 2.获取选择行ID的列值
				long id = (Long) table.getValueAt(row, 1);
				// 3.删除
				if(controller.delStudent(id)) {
					
					JOptionPane.showMessageDialog(null, "删除成功");
					pageEntity.init();
					UpTabltUI(pageEntity.homePage());
				}else {
					JOptionPane.showMessageDialog(null, "删除失败");
				}
				
			} else {

				JOptionPane.showMessageDialog(null, "请选择数据");
			}
		}

		// 页面导航
		if (e.getSource() == homeBtn) {

			List<Student> list=pageEntity.homePage();
			UpTabltUI(list);
		}

		if (e.getSource() == nextBtn) {
			List<Student> list=pageEntity.nextPage();
			UpTabltUI(list);
		}

		
		if (e.getSource() == upBtn) {
			List<Student> list=pageEntity.previouPage();
			UpTabltUI(list);
		}
		
		if (e.getSource() == endBtn) {
			List<Student> list=pageEntity.endPage();
			UpTabltUI(list);
		}
		
		if (e.getSource() == jumpBtn) {
			
			String pageNo=tjump.getText();
			if(pageNo!=null&&!pageNo.equals("")) 
			{
				List<Student> list=pageEntity.getListDataByPageNo(Integer.valueOf(pageNo));
				UpTabltUI(list);
			}else {
				
				
			}
			
			
		}
		
		if(e.getSource()==searchBtn) {
			//选择字段
			String item=(String) searchBox.getSelectedItem();
		    String field;
			Object value =tsearch.getText();
			if(item.equals("姓名")) {
				field="name";
				
			}else if(item.equals("学号")) {
				field="no";
				
			}else if(item.equals("年龄")) {
				field="age";
			}else {
				field="sex";
			}
			
		   List<Student> list=controller.search(field, value);
		
		   UpTabltUI(list);
	       	}
	  }

   }

 }