(附完整代码)Java学生信息管理系统结合图形界面展示
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项目二：（附完整代码）简易图书管理系统（CRUD+分页）
鉴于许多人在博客中一个类一个类复制代码容易出错且不懂的git拉完整代码，特此附上完成代码压缩包，解压简单配置即可使用=>完整代码压缩包
目录
一.程序结构设计
二.项目图片展示
1.登录界面
2.注册界面
3.管理后台主界面
（1）查询所有学生
（2）通过学号查询单个学生
（3）删除单个学生
4.添加学生界面
5.修改学生界面
三.项目代码
一.在数据库中建表
（1）学生信息表
（2）登录用户表
二.Data对象(Pojo)
(1)学生类
(2)用户类
三.mapper代理层
(1)StudentMapper
(2)UserMapper(sql语句比较短用的注解开发)
四.service层
（1）studentService
（2）userService
五.图形界面GUI层
（1）LoginView（登录界面）
（2）RegisterVie（注册界面）
（3）UserListView（系统主界面）
（4）UpdateView（修改信息界面）
（5）AddView（添加学生界面）
六.工具类
七.配置文件
（1）pom文件
（2）mybatis-config.xml
（3）StudentMapper.xml
（4）UserMapper.xml
四.待优化处及gitee仓库地址
一.程序结构设计
利用maven对项目进行管理简化了手动jar包导入的过程。采用了类似三层架构的思想将业务逻辑层，数据访问层和表现层分包编写。在数据访问层用Mybatis简化了JDBC代码的书写，采取mapper代理开发让Mybatis更加简单。在业务逻辑层编写了增删改查注册登录方法可以供表现层单独调用。在表现层以图形界面形式展示各个功能，捕获用户操作对数据库进行处理。
二.项目图片展示
1.登录界面
用户可以填写账号密码进行注册，注册时会检测数据库中是否存在相同账号，如果已存在则会拦截注册并跳出提醒窗口，反之注册成功。登录和注册窗口可以相互跳转。
2.注册界面
可拦截重复注册数据库中已存在的账号，密码不检查。按注册未输入账号密码会跳出相应提醒对话框，如果输入账号在数据库已存在也会跳出相应提醒对话框。按重置会清空输入的账号和密码，按返回会跳转回登录界面。
3.管理后台主界面
（1）查询所有学生
可以点击查看按钮查看数据库已存在的所有学生学生信息
（2）通过学号查询单个学生
可以输入学号查询存在的学生，如果查询的学生不存在则跳出提醒对话框
（3）删除单个学生
可以单击选中某条数据再按删除按钮删除学生
4.添加学生界面
点击添加学生按钮可弹出新窗口录入学生数据，可检查学号是否已存在，如果存在则会拦截本次添加，否则将录入的数据存入数据库中。
5.修改学生界面
需要在主界面单击选中某条学生然后点击修改按钮，可跳出一个修改界面，在界面中会回显该学生所有数据
三.项目代码
一.在数据库中建表
（1）学生信息表
CREATE database studentMessage;
CREATE TABLE studentAll(
sid INT PRIMARY KEY,
name VARCHAR(5),
age INT,
major VARCHAR(5),
grade VARCHAR(5),
loveSubj VARCHAR(5)
);
SELECT * FROM studentAll;（2）登录用户表
CREATE TABLE tb_user(
id INT PRIMARY KEY,
username VARCHAR(20),
password varchar(20)
);
SELECT * from tb_user;二.Data对象(Pojo)
(1)学生类
package pojo;
/**
* @author 观止
*/
public class Student {
private int sid;
private String name;
private int age;
private String major;
private String grade;
private String loveSubj;
public Student() {
}
public Student(int sid, String name, int age, String major, String grade, String loveSubj) {
this.sid = sid;
this.name = name;
this.age = age;
this.major = major;
this.grade = grade;
this.loveSubj = loveSubj;
}
public int getSid() {
return sid;
}
public void setSid(int sid) {
this.sid = sid;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getMajor() {
return major;
}
public void setMajor(String major) {
this.major = major;
}
public String getGrade() {
return grade;
}
public void setGrade(String grade) {
this.grade = grade;
}
public String getloveSubj() {
return loveSubj;
}
public void setloveSubj(String loveSubj) {
this.loveSubj = loveSubj;
}
@Override
public String toString() {
return "Student{" +
"sid=" + sid +
", name='" + name + '\'' +
", age=" + age +
", major='" + major + '\'' +
", grade='" + grade + '\'' +
", loveSubj='" + loveSubj + '\'' +
'}';
}
}(2)用户类
package pojo;
/**
* @author 观止
*/
public class User {
private Integer id;
private String username;
private String password;
public User() {
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@Override
public String toString() {
return "User{" +
"id=" + id +
", username='" + username + '\'' +
", password='" + password + '\'' +
'}';
}
}三.mapper代理层
(1)StudentMapper
import pojo.Student;
import java.util.List;
/**
* @author 观止
*/
public interface StudentMapper {
//查询所有学生
List selectAll();
//添加学生
void add(Student student);
//验证学号和姓名删除学生
void delete(int id);
//修改学生信息
void update(Student student);
//查询单个学生
Student selectBySid(int sid);
} (2)UserMapper(sql语句比较短用的注解开发)
package mapper;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import pojo.User;
/**
* @author 观止
*/
public interface UserMapper {
@Select("select * from tb_user where username=#{username} and password=#{password}")
User select(@Param("username") String username, @Param("password") String password);
@Insert("insert into tb_user (id,username,password) values(null,#{username},#{password})")
void insert(User user);
@Select("select * from tb_user where username=#{username}")
User selectByUsername(String username);
}
四.service层
（1）studentService
package service;
import mapper.StudentMapper;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import pojo.Student;
import util.SqlSessionFactoryUtils;
import java.util.List;
/**
* @author 观止
*/
public class studentService {
SqlSessionFactory sqlSessionFactory=SqlSessionFactoryUtils.getSqlSessionFactory();
//查询所有学生
public List selectAll(){
SqlSession sqlSession = sqlSessionFactory.openSession();
StudentMapper mapper = sqlSession.getMapper(StudentMapper.class);
List students = mapper.selectAll();
sqlSession.close();
return students;
}
//添加学生
public void add(Student student){
SqlSession sqlSession = sqlSessionFactory.openSession();
StudentMapper mapper = sqlSession.getMapper(StudentMapper.class);
mapper.add(student);
sqlSession.commit();
sqlSession.close();
}
//删除学生
public void delete(int sid){
SqlSession sqlSession = sqlSessionFactory.openSession();
StudentMapper mapper = sqlSession.getMapper(StudentMapper.class);
mapper.delete(sid);
sqlSession.commit();
sqlSession.close();
}
//修改学生
public void update(Student student){
SqlSession sqlSession = sqlSessionFactory.openSession();
StudentMapper mapper = sqlSession.getMapper(StudentMapper.class);
mapper.update(student);
sqlSession.commit();
sqlSession.close();
}
//通过学号查询学生
public Student selectBySid(int sid){
SqlSession sqlSession = sqlSessionFactory.openSession();
StudentMapper mapper = sqlSession.getMapper(StudentMapper.class);
Student student = mapper.selectBySid(sid);
return student;
}
} （2）userService
package service;
import mapper.UserMapper;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import pojo.User;
import util.SqlSessionFactoryUtils;
/**
* @author 观止
*/
public class userService {
SqlSessionFactory sqlSessionFactory = SqlSessionFactoryUtils.getSqlSessionFactory();
//检查用户名是否重复
public boolean check(String username) {
SqlSession sqlSession = sqlSessionFactory.openSession();
UserMapper mapper = sqlSession.getMapper(UserMapper.class);
User user = mapper.selectByUsername(username);
return user==null?true:false;
}
//注册账号
public void regiser(User user) {
SqlSession sqlSession = sqlSessionFactory.openSession();
UserMapper mapper = sqlSession.getMapper(UserMapper.class);
mapper.insert(user);
sqlSession.commit();
sqlSession.close();
}
//登录
public Boolean login(String username, String password) {
SqlSession sqlSession = sqlSessionFactory.openSession();
UserMapper mapper = sqlSession.getMapper(UserMapper.class);
User user = mapper.select(username, password);
sqlSession.close();
return user != null ? true : false;
}
}五.图形界面GUI层
（1）LoginView（登录界面）
package GUITest;
import service.userService;
import java.awt.EventQueue;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
/**
* @author 观止
*/
public class LoginView extends JFrame {
private JPanel contentPane;
private JTextField usernameText;
private JTextField passwordText;
private userService userservice = new userService();
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(() -> {
try {
LoginView frame = new LoginView();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
});
}
/**
* Create the frame.
*/
public LoginView() {
setTitle("欢迎登录");
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
setBounds(100, 100, 380, 250);
setLocationRelativeTo(null);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JLabel lblNewLabel = new JLabel("账号：");
lblNewLabel.setBounds(92, 50, 50, 15);
contentPane.add(lblNewLabel);
usernameText = new JTextField();
usernameText.setBounds(131, 47, 160, 21);
contentPane.add(usernameText);
usernameText.setColumns(10);
JLabel lblNewLabel_1 = new JLabel("密码：");
lblNewLabel_1.setBounds(92, 93, 43, 15);
contentPane.add(lblNewLabel_1);
passwordText = new JTextField();
passwordText.setBounds(131, 90, 160, 21);
contentPane.add(passwordText);
passwordText.setColumns(10);
//注册
JButton registerBtn = new JButton("注册");
registerBtn.addActionListener(e -> {
RegisterView view = new RegisterView();
view.setVisible(true);
dispose();
});
registerBtn.setBounds(210, 150, 74, 23);
contentPane.add(registerBtn);
//登录
JButton LoginBtn = new JButton("登录");
LoginBtn.addActionListener(e -> {
stulogin();
});
LoginBtn.setBounds(115, 150, 74, 23);
contentPane.add(LoginBtn);
}
public void stulogin() {
if (userservice.login(usernameText.getText(), passwordText.getText())) {
JOptionPane.showMessageDialog(null, "登录成功！", "提示消息", JOptionPane.WARNING_MESSAGE);
//关闭当前界面
dispose();
UserListView view = new UserListView();
view.setVisible(true);
} else if (usernameText.getText().isEmpty() && passwordText.getText().isEmpty()) {
JOptionPane.showMessageDialog(null, "请输入用户名和密码！", "提示消息", JOptionPane.WARNING_MESSAGE);
} else if (usernameText.getText().isEmpty()) {
JOptionPane.showMessageDialog(null, "请输入用户名！", "提示消息", JOptionPane.WARNING_MESSAGE);
} else if (passwordText.getText().isEmpty()) {
JOptionPane.showMessageDialog(null, "请输入密码！", "提示消息", JOptionPane.WARNING_MESSAGE);
} else {
JOptionPane.showMessageDialog(null, "用户名或者密码错误！\n请重新输入", "提示消息", JOptionPane.ERROR_MESSAGE);
usernameText.setText("");
passwordText.setText("");
}
}
}（2）RegisterVie（注册界面）
package GUITest;
import pojo.User;
import service.userService;
import java.awt.EventQueue;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
/**
* @author 观止
*/
public class RegisterView extends JFrame {
private JPanel contentPane;
private JTextField usernameText;
private JTextField passwordText;
private userService userservice = new userService();
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(() -> {
try {
RegisterView frame = new RegisterView();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
});
}
/**
* Create the frame.
*/
public RegisterView() {
setTitle("欢迎注册");
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
setBounds(100, 100, 380, 250);
setLocationRelativeTo(null);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JLabel lblNewLabel = new JLabel("账号：");
lblNewLabel.setBounds(92, 50, 50, 15);
contentPane.add(lblNewLabel);
usernameText = new JTextField();
usernameText.setBounds(131, 47, 160, 21);
contentPane.add(usernameText);
usernameText.setColumns(10);
JLabel lblNewLabel_1 = new JLabel("密码：");
lblNewLabel_1.setBounds(92, 93, 43, 15);
contentPane.add(lblNewLabel_1);
passwordText = new JTextField();
passwordText.setBounds(131, 90, 160, 21);
contentPane.add(passwordText);
passwordText.setColumns(10);
//注册
JButton registerBtn = new JButton("注册");
registerBtn.addActionListener(e -> {
String username = usernameText.getText();
String password = passwordText.getText();
if (username == null || "".equals(username)) {
JOptionPane.showMessageDialog(contentPane, "请输入账号", "系统提示", JOptionPane.WARNING_MESSAGE);
} else if (password == null || "".equals(password)) { JOptionPane.showMessageDialog(contentPane, "请输入密码", "系统提示", JOptionPane.WARNING_MESSAGE);
} else if (userservice.check(username)) {
if (username.isEmpty() && password.isEmpty()) {
JOptionPane.showMessageDialog(null, "请输入用户名和密码！", "提示消息", JOptionPane.WARNING_MESSAGE);
} else {
User user = new User();
user.setUsername(username);
user.setPassword(password);
userservice.regiser(user);
JOptionPane.showMessageDialog(null, "注册成功！", "提示消息", JOptionPane.WARNING_MESSAGE);
LoginView view = new LoginView();
view.setVisible(true);
dispose();
}
} else {
JOptionPane.showMessageDialog(contentPane, "用户名已存在", "系统提示", JOptionPane.WARNING_MESSAGE);
usernameText.setText("");
passwordText.setText("");
}
});
registerBtn.setBounds(115, 150, 74, 23);
contentPane.add(registerBtn);
//重置
JButton LoginBtn = new JButton("重置");
LoginBtn.addActionListener(e -> {
usernameText.setText("");
passwordText.setText("");
});
LoginBtn.setBounds(210, 150, 74, 23);
contentPane.add(LoginBtn);
//返回
JButton returnBtn = new JButton("返回");
returnBtn.addActionListener(e -> {
LoginView view = new LoginView();
view.setVisible(true);
dispose();
});
returnBtn.setBounds(160, 180, 74, 23);
contentPane.add(returnBtn);
}
}（3）UserListView（系统主界面）
package GUITest;
import pojo.Student;
import service.studentService;
import java.awt.EventQueue;
import java.util.List;
import javax.swing.JButton;
import javax.swing.JFrame;
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.border.EmptyBorder;
import javax.swing.table.DefaultTableModel;
/**
* @author 观止
*/
public class UserListView extends JFrame {
private JPanel contentPane;
private JTable table;
private JTextField sidText;
private studentService service = new studentService();
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(() -> {
try {
UserListView frame = new UserListView();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
});
}
/**
* Create the frame.
*/
public UserListView() {
setTitle("学生信息管理系统");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 600, 337);
setLocationRelativeTo(null);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JScrollPane scrollPane = new JScrollPane();
scrollPane.setBounds(10, 39, 564, 232);
contentPane.add(scrollPane);
Object[] columns = {"学号", "名字", "年龄", "专业", "班级", "偏爱学科"};
Object[][] data = null;
DefaultTableModel model = new DefaultTableModel(data, columns);
table = new JTable(model);
//加载学生数据
load(null);
scrollPane.setViewportView(table);
JLabel lblNewLabel = new JLabel("学号");
lblNewLabel.setBounds(10, 10, 42, 15);
contentPane.add(lblNewLabel);
sidText = new JTextField();
sidText.setBounds(44, 8, 115, 21);
contentPane.add(sidText);
sidText.setColumns(10);
//查看按钮
JButton searchBtn = new JButton("查看");
searchBtn.addActionListener(e -> load(sidText.getText()));
searchBtn.setBounds(300, 8, 63, 23);
contentPane.add(searchBtn);
//搜索学生
JButton searchBtn1 = new JButton("搜索");
searchBtn1.addActionListener(e -> search(Integer.parseInt(sidText.getText())));
searchBtn1.setBounds(169, 8, 63, 23);
contentPane.add(searchBtn1);
//添加按钮
JButton addBtn = new JButton("添加");
addBtn.addActionListener(e -> {
AddView view = new AddView();
view.setVisible(true);
});
addBtn.setBounds(365, 8, 63, 23);
contentPane.add(addBtn);
//修改按钮
JButton updateBtn = new JButton("修改");
updateBtn.addActionListener(e -> {
// 获取选中行
int row = table.getSelectedRow();
if (row < 0) {
JOptionPane.showMessageDialog(contentPane, "请选择一条记录", "系统提示", JOptionPane.WARNING_MESSAGE);
return;
}
int id = Integer.valueOf(table.getValueAt(row, 0).toString());
UpdateView view = new UpdateView(id);
view.setVisible(true);
});
updateBtn.setBounds(438, 8, 63, 23);
//删除按钮
JButton deleteBtn = new JButton("删除");
deleteBtn.addActionListener(e -> {
// 获取选中行
int row = table.getSelectedRow();
if (row < 0) {
JOptionPane.showMessageDialog(contentPane, "请选择一条记录", "系统提示", JOptionPane.WARNING_MESSAGE);
return;
}
int result = JOptionPane.showConfirmDialog(contentPane, "确认删除该学生吗？", "提示",
JOptionPane.YES_NO_OPTION);
if (result == 0) {
int sid = Integer.valueOf(table.getValueAt(row, 0).toString());
service.delete(sid);
JOptionPane.showMessageDialog(contentPane, "删除成功!");
load(null);
}
});
deleteBtn.setBounds(511, 8, 63, 23);
contentPane.add(deleteBtn);
contentPane.add(updateBtn);
}
// 填充表格数据
public void load(String sid) {
List list = service.selectAll();
DefaultTableModel tableModel = (DefaultTableModel) table.getModel();
tableModel.setRowCount(0);
// 填充数据
for (Student item : list) {
String[] arr = new String[6];
arr[0] = item.getSid() + "";
arr[1] = item.getName();
arr[2] = String.valueOf(item.getAge());
arr[3] = item.getMajor();
arr[4] = item.getGrade();
arr[5] = item.getloveSubj();
// 添加数据到表格
tableModel.addRow(arr);
}
}
public void search(int sid) {
Student student = service.selectBySid(sid);
if (student != null) {
DefaultTableModel tableModel = (DefaultTableModel) table.getModel();
tableModel.setRowCount(0);// 清除原有行
String[] arr = new String[6];
arr[0] = student.getSid() + "";
arr[1] = student.getName();
arr[2] = String.valueOf(student.getAge());
arr[3] = student.getMajor();
arr[4] = student.getGrade();
arr[5] = student.getloveSubj();
// 添加数据到表格
tableModel.addRow(arr);
} else {
JOptionPane.showMessageDialog(contentPane, "不存在该学生", "系统提示", JOptionPane.WARNING_MESSAGE);
}
}
} （4）UpdateView（修改信息界面）
package GUITest;
import pojo.Student;
import service.studentService;
import java.awt.EventQueue;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
/**
* @author观止
*/
public class UpdateView extends JFrame {
private JPanel contentPane;
private JTextField sidText;
private JTextField nameText;
private JTextField ageText;
private JTextField majorText;
private JTextField gradeText;
private JTextField loveSubjText;
private studentService service = new studentService();
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(() -> {
try {
UpdateView frame = new UpdateView(1);
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
});
}
/**
* Create the frame.
*/
public UpdateView(final int sid) {
setTitle("学生编辑");
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
setBounds(100, 100, 443, 450);
setLocationRelativeTo(null);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JLabel lblNewLabel = new JLabel("学号：");
lblNewLabel.setBounds(112, 50, 43, 15);
contentPane.add(lblNewLabel);
sidText = new JTextField();
sidText.setBounds(151, 47, 160, 21);
contentPane.add(sidText);
sidText.setColumns(10);
JLabel lblNewLabel_1 = new JLabel("姓名：");
lblNewLabel_1.setBounds(112, 93, 43, 15);
contentPane.add(lblNewLabel_1);
nameText = new JTextField();
nameText.setBounds(151, 90, 160, 21);
contentPane.add(nameText);
nameText.setColumns(10);
JLabel lblNewLabel_2 = new JLabel("年龄：");
lblNewLabel_2.setBounds(112, 134, 43, 15);
contentPane.add(lblNewLabel_2);
ageText = new JTextField();
ageText.setBounds(151, 130, 160, 21);
contentPane.add(ageText);
ageText.setColumns(10);
JLabel lblNewLabel_3 = new JLabel("专业：");
lblNewLabel_3.setBounds(112, 177, 43, 15);
contentPane.add(lblNewLabel_3);
majorText = new JTextField();
majorText.setBounds(151, 177, 160, 21);
contentPane.add(majorText);
majorText.setColumns(10);
JLabel lblNewLabel_4 = new JLabel("班级：");
lblNewLabel_4.setBounds(111, 220, 43, 15);
contentPane.add(lblNewLabel_4);
gradeText = new JTextField();
gradeText.setBounds(151, 220, 160, 21);
contentPane.add(gradeText);
gradeText.setColumns(10);
JLabel lblNewLabel_5 = new JLabel("偏爱学科：");
lblNewLabel_5.setBounds(90, 263, 70, 15);
contentPane.add(lblNewLabel_5);
loveSubjText = new JTextField();
loveSubjText.setBounds(151, 263, 160, 21);
contentPane.add(loveSubjText);
loveSubjText.setColumns(10);
//保存
JButton saveBtn = new JButton("保存");
saveBtn.addActionListener(e -> {
String sid1 = sidText.getText();
String name = nameText.getText();
String age = ageText.getText();
String major = majorText.getText();
String grade = gradeText.getText();
String loveSubj = loveSubjText.getText();
if (sid1 == null || "".equals(sid1)) {
JOptionPane.showMessageDialog(contentPane, "请输入学号", "系统提示", JOptionPane.WARNING_MESSAGE);
return;
}
if (name == null || "".equals(name)) {
JOptionPane.showMessageDialog(contentPane, "请输入姓名", "系统提示", JOptionPane.WARNING_MESSAGE);
return;
}
if (age == null || "".equals(age)) {
JOptionPane.showMessageDialog(contentPane, "请输入年龄", "系统提示", JOptionPane.WARNING_MESSAGE);
return;
}
if (major == null || "".equals(major)) {
JOptionPane.showMessageDialog(contentPane, "请输入专业", "系统提示", JOptionPane.WARNING_MESSAGE);
return;
}
if (grade == null || "".equals(grade)) {
JOptionPane.showMessageDialog(contentPane, "请输入年纪", "系统提示", JOptionPane.WARNING_MESSAGE);
return;
}
if (loveSubj == null || "".equals(loveSubj)) {
JOptionPane.showMessageDialog(contentPane, "请输入偏爱学科", "系统提示", JOptionPane.WARNING_MESSAGE);
return;
}
Student student = new Student();
student.setSid(Integer.parseInt(sid1));
student.setName(name);
student.setAge(Integer.parseInt(age));
student.setMajor(major);
student.setGrade(grade);
student.setloveSubj(loveSubj);
service.update(student);
dispose();
JOptionPane.showMessageDialog(contentPane, "修改成功，点击查询刷新数据!");
});
saveBtn.setBounds(151, 300, 74, 23);
contentPane.add(saveBtn);
//取消
JButton cancelBtn = new JButton("取消");
cancelBtn.addActionListener(e -> dispose());
cancelBtn.setBounds(237, 300, 74, 23);
contentPane.add(cancelBtn);
//数据回显
Student student = service.selectBySid(sid);
sidText.setText(String.valueOf(student.getSid()));
nameText.setText(student.getName());
ageText.setText(String.valueOf(student.getAge()));
majorText.setText(student.getMajor());
gradeText.setText(student.getGrade());
loveSubjText.setText(student.getloveSubj());
}
}（5）AddView（添加学生界面）
package GUITest;
import pojo.Student;
import service.studentService;
import java.awt.EventQueue;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
/**
* @author 观止
*/
public class AddView extends JFrame {
private JPanel contentPane;
private JTextField sidText;
private JTextField nameText;
private JTextField ageText;
private JTextField majorText;
private JTextField gradeText;
private JTextField loveSubjText;
private studentService service = new studentService();
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(() -> {
try {
AddView frame = new AddView();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
});
}
/**
* Create the frame.
*/
public AddView() {
setTitle("学生添加");
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
setBounds(100, 100, 443, 450);
setLocationRelativeTo(null);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JLabel lblNewLabel = new JLabel("学号：");
lblNewLabel.setBounds(112, 50, 43, 15);
contentPane.add(lblNewLabel);
sidText = new JTextField();
sidText.setBounds(151, 47, 160, 21);
contentPane.add(sidText);
sidText.setColumns(10);
JLabel lblNewLabel_1 = new JLabel("姓名：");
lblNewLabel_1.setBounds(112, 93, 43, 15);
contentPane.add(lblNewLabel_1);
nameText = new JTextField();
nameText.setBounds(151, 90, 160, 21);
contentPane.add(nameText);
nameText.setColumns(10);
JLabel lblNewLabel_2 = new JLabel("年龄：");
lblNewLabel_2.setBounds(112, 134, 43, 15);
contentPane.add(lblNewLabel_2);
ageText = new JTextField();
ageText.setBounds(151, 130, 160, 21);
contentPane.add(ageText);
ageText.setColumns(10);
JLabel lblNewLabel_3 = new JLabel("专业：");
lblNewLabel_3.setBounds(112, 177, 43, 15);
contentPane.add(lblNewLabel_3);
majorText = new JTextField();
majorText.setBounds(151, 177, 160, 21);
contentPane.add(majorText);
majorText.setColumns(10);
JLabel lblNewLabel_4 = new JLabel("班级：");
lblNewLabel_4.setBounds(111, 220, 43, 15);
contentPane.add(lblNewLabel_4);
gradeText = new JTextField();
gradeText.setBounds(151, 220, 160, 21);
contentPane.add(gradeText);
gradeText.setColumns(10);
JLabel lblNewLabel_5 = new JLabel("偏爱学科：");
lblNewLabel_5.setBounds(90, 263, 70, 15);
contentPane.add(lblNewLabel_5);
loveSubjText = new JTextField();
loveSubjText.setBounds(151, 263, 160, 21);
contentPane.add(loveSubjText);
loveSubjText.setColumns(10);
//保存
JButton saveBtn = new JButton("保存");
saveBtn.addActionListener(e -> {
String sid = sidText.getText();
String name = nameText.getText();
String age = ageText.getText();
String major = majorText.getText();
String grade = gradeText.getText();
String loveSubj = loveSubjText.getText();
if (sid == null || "".equals(sid)) {
JOptionPane.showMessageDialog(contentPane, "请输入学号", "系统提示", JOptionPane.WARNING_MESSAGE);
return;
}
if (name == null || "".equals(name)) {
JOptionPane.showMessageDialog(contentPane, "请输入姓名", "系统提示", JOptionPane.WARNING_MESSAGE);
return;
}
if (age == null || "".equals(age)) {
JOptionPane.showMessageDialog(contentPane, "请输入年龄", "系统提示", JOptionPane.WARNING_MESSAGE);
return;
}
if (major == null || "".equals(major)) {
JOptionPane.showMessageDialog(contentPane, "请输入专业", "系统提示", JOptionPane.WARNING_MESSAGE);
return;
}
if (grade == null || "".equals(grade)) {
JOptionPane.showMessageDialog(contentPane, "请输入年纪", "系统提示", JOptionPane.WARNING_MESSAGE);
return;
}
if (loveSubj == null || "".equals(loveSubj)) {
JOptionPane.showMessageDialog(contentPane, "请输入偏爱学科", "系统提示", JOptionPane.WARNING_MESSAGE);
return;
}
Student student = new Student();
student.setSid(Integer.parseInt(sid));
student.setName(name);
student.setAge(Integer.parseInt(age));
student.setMajor(major);
student.setGrade(grade);
student.setloveSubj(loveSubj);
try {
service.add(student);
dispose();
JOptionPane.showMessageDialog(contentPane, "添加成功，点击查询可刷新!");
}catch (Exception error){
JOptionPane.showMessageDialog(contentPane, "该学号已存在", "系统提示", JOptionPane.WARNING_MESSAGE);
}
});
saveBtn.setBounds(151, 300, 74, 23);
contentPane.add(saveBtn);
//取消
JButton cancelBtn = new JButton("取消");
cancelBtn.addActionListener(e -> dispose());
cancelBtn.setBounds(237, 300, 74, 23);
contentPane.add(cancelBtn);
}
}六.工具类
package util;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import java.io.IOException;
import java.io.InputStream;
/**
* @author 观止
*/
public class SqlSessionFactoryUtils {
private static SqlSessionFactory sqlSessionFactory;
static {
//静态代码块会随着类的加载自动执行，且只执行一次
try {
String resource = "mybatis-config.xml";
InputStream inputStream = Resources.getResourceAsStream(resource);
sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
} catch (IOException e) {
e.printStackTrace();
}
}
public static SqlSessionFactory getSqlSessionFactory() {
return sqlSessionFactory;
}
}七.配置文件
（1）pom文件
17
17
mysql
mysql-connector-java
8.0.23
org.mybatis
mybatis
3.5.5
org.apache.maven.plugins
maven-compiler-plugin
16
16
（2）mybatis-config.xml
（3）StudentMapper.xml
insert into studentall
values (#{sid}, #{name}, #{age}, #{major}, #{grade}, #{loveSubj})
UPDATE studentall
SET name=#{name},
age=#{age},
major=#{major},
grade=#{grade},
loveSubj=#{loveSubj}
WHERE sid = #{sid}
delete
from studentall
where sid = #{sid}
（4）UserMapper.xml
四.待优化处及gitee仓库地址
1.由于不熟悉图形界面的开发，图形界面开发的比较简陋，各种按钮及标签的坐标都是一点一点移动对齐的，页面展示的功能也比较简单。
2.数据创建学生信息表时直接将学号sid当成主键为int型，结果后期调试时发现输入超过10位的学号程序便会抛出异常，由于需要改的地方太多了便没有修改，我觉得此处多设置一个主键id，然后将sid设置为String型比较好。
git仓库地址，感谢Star：studentManageSystem: 学生信息管理系统，swing+mybatis
git clone https://gitee.com/fspStudy/student-manage-system.git