JAVA Swing实现窗口添加课程信息过程解析

JAVA Swing实现窗口添加课程信息过程解析

基本思路：

先创建出一个添加课程信息的框架，随后就设置按钮的鼠标监听事件，确保单机后录入信息的合法性，以及确定合法性之后的后续操作，如保存课程信息，信息有误弹出窗口等操作。

代码

package Test;

import javax.swing.JButton;

import java.io.*;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JTextField;

import java.awt.*;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

public class SetClass {

String str1="添加课程失败，请核对信息后添加",

str2="添加成功";

JFrame jf=new JFrame("新课程添加");

JPanel panel=new JPanel();

JLabel addclass=new JLabel("课程名称");

JTextField addclasstext=new JTextField();

JLabel teacher=new JLabel("任课老师");

JTextField teachertext=new JTextField();

JLabel placeclass=new JLabel("上课地点");

JTextField placeclasstext=new JTextField();

JButton register=new JButton("添加");

public boolean judgeText(String filepath,String s) //判断信息的合法性

{

String str="";

boolean flag=false;

File file=new File(filepath);

try {

FileReader reader=new FileReader(file);

BufferedReader br=new BufferedReader(reader);

while((str=br.readLine())!=null)

{

if(str.equals(s))

flag=true;

}

br.close();

reader.close();

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

return flag;

}

public void inputFile(String filepath,JTextField jt) //将信息录入到文件中

{

File file=new File(filepath);

try {

FileWriter reader = new FileWriter(file,true);

BufferedWriter bw=new BufferedWriter(reader);

bw.newLine();

bw.write(jt.getText());

bw.close();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

public void setPanel(JPanel panel) //设置面板

{

panel.setLayout(null);

addclass.setBounds(30, 30, 80, 25);

teacher.setBounds(30, 60, 80, 25);

placeclass.setBounds(30, 90, 80, 25);

register.setBounds(110, 120, 80, 25);

register.addActionListener(new ActionListener() { //增加事件监听器

@Override

public void actionPerformed(ActionEvent arg0) {

// TODO Auto-generated method stub

if(!judgeText("data", addclasstext.getText())&&judgeText("data", teachertext.getText())&&judgeText("data", placeclasstext.getText().substring(0, 2)))

{

inputFile("data",addclasstext);

inputFile("Xclass",addclasstext);

inputFile("Xclass",teachertext);

inputFile("Xclass",placeclasstext);

new MyJf(str2);

}

else

new MyJf(str1);

}

});

addclasstext.setBounds(105, 30, 165, 25);

teachertext.setBounds(105, 60, 165, 25);

placeclasstext.setBounds(105, 90, 165, 25);

panel.add(addclass);

panel.add(addclasstext);

panel.add(teacher);

panel.add(teachertext);

panel.add(register);

panel.add(placeclass);

panel.add(placeclasstext);

}

SetClass() { //为JFrame窗口设置窗口参数

// TODO Auto-generated constructor stub

jf.setSize(340, 250);

jf.setLocationRelativeTo(null);

jf.add(panel);

setPanel(panel);

jf.setVisible(true);

jf.setDefaultCloseOperation(3);

}

public static void main(String[] args) {

// TODOlePPFQBx Auto-generated method stub

new SetClass();

}

}

class MyJf //创建弹出窗口

{

JFrame jf1=new JFrame("提示信息");

http:// JPanel jp1=new JPanel();

JLabel jl=new JLabel();

MyJf(String str)

{

jl.setText(str);

jf1.setSize(300, 80);

jf1.setVisible(true);

jf1.add(jp1);

jf1.setDefaultCloseOperation(2);

jf1.setLocationRelativeTo(null);

jp1.add(jl);

}

}

版权声明：本文内容由网络用户投稿，版权归原作者所有，本站不拥有其著作权，亦不承担相应法律责任。如果您发现本站中有涉嫌抄袭或描述失实的内容，请联系我们jiasou666@gmail.com 处理，核实后本网站将在24小时内删除侵权内容。