updatelinkman.java

java编写的一个简易通讯录,用的是Swing组件开发的界面,Properties属性文件用作保存数据,能用于初学者贯通java面向对象开发思想,并有很强扩展性,比如将DAO层换为数据库,将表示层换为

package com.lovo.testminibook.control;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Map;

import javax.swing.JOptionPane;

import com.lovo.testminibook.model.LinkMan;
import com.lovo.testminibook.util.FileUtil;
import com.lovo.testminibook.view.MainWindow;

public class UpdateLinkMan implements ActionListener {

	MainWindow mw;
	public UpdateLinkMan(MainWindow mw){
		this.mw=mw;
	}
	@Override
	public void actionPerformed(ActionEvent e) {
		int row=mw.getJTable1().getSelectedRow();
		if(row==-1){
			JOptionPane.showMessageDialog(mw, "请选择要修改的联系人");
			return;
		}
		String oldNumber=(String) mw.getJTable1().getValueAt(row, 0);
		LinkMan lm=this.reciveInput();
		if(lm.getNumber().equals(oldNumber)){
			FileUtil fu=new FileUtil();
			Map user=fu.getUser();
			user.put(lm.getNumber(), lm);
			fu.write(user);
			mw.setJTable();
			mw.reset();
		}else{
			JOptionPane.showMessageDialog(mw, "学号不能修改");
			return;
		}

	}
	
	public LinkMan reciveInput(){
		LinkMan lm=new LinkMan();
		if(mw.getNumberjTextField().getText() == null || mw.getNumberjTextField().getText().trim().equals("")){
			JOptionPane.showMessageDialog(mw, "学号不能为空！");
			return null;
		}else{
			lm.setNumber(mw.getNumberjTextField().getText().trim());
		}
		if(mw.getNamejTextField2().getText() == null || mw.getNamejTextField2().getText().trim().equals("")){
			JOptionPane.showMessageDialog(mw, "姓名不能为空！");
			return null;
		}else{
			lm.setName(mw.getNamejTextField2().getText().trim());
		}
		
		
		if(mw.getAgejTextField1().getText()==null||mw.getAgejTextField1().getText().trim().equals("")){
			JOptionPane.showMessageDialog(mw, "年龄不能为空");
			return null;
		}else{
			try{
				lm.setAge(Integer.parseInt(mw.getAgejTextField1().getText().trim()));
			}catch(NumberFormatException e){
				
			}
		}
		
		if(mw.getAddressjTextField4().getText()==null||mw.getAddressjTextField4().getText().trim().equals("")){
			JOptionPane.showMessageDialog(mw, "地址不能为空");
			return null;
		}else{
			lm.setAddress(mw.getAddressjTextField4().getText().trim());
		}
		
		if(mw.getPhonejTextField3().getText()==null||mw.getPhonejTextField3().getText().trim().equals("")){
			JOptionPane.showMessageDialog(mw, "电话不能为空");
			return null;
		}else{
			lm.setPhone(mw.getPhonejTextField3().getText().trim());
		}
		
		if(mw.getJRadioButton().isSelected()){
			lm.setSex("男");
		}
		if(mw.getJRadioButton1().isSelected()){
			lm.setSex("女");
		}
		
		return lm;
	}

}