软件工程

最近再新学springbooot
以下是新学的项目
`package org.example.student123;

import jakarta.persistence.*;

@Entity
@Table(name = "students")
public class Student {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;

private String name;
private String email;
private String phone;
private String department;

// 构造方法
public Student() {}

public Long getId() {
    return id;
}

public void setId(Long id) {
    this.id = id;
}

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

public String getEmail() {
    return email;
}

public void setEmail(String email) {
    this.email = email;
}

public String getPhone() {
    return phone;
}

public void setPhone(String phone) {
    this.phone = phone;
}

public String getDepartment() {
    return department;
}

public void setDepartment(String department) {
    this.department = department;
}

}
`package org.example.student123;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Student123Application {

public static void main(String[] args) {
    SpringApplication.run(Student123Application.class, args);
}

}
``
`package org.example.student123;

import org.example.student123.Student;
import org.example.student123.StudentRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;

@Controller
@RequestMapping("/students")
public class StudentController {

@Autowired
private StudentRepository studentRepository;

// 显示所有学生
@GetMapping
public String listStudents(Model model) {
    model.addAttribute("students", studentRepository.findAll());
    return "students/list";
}

// 显示添加表单
@GetMapping("/add")
public String showAddForm(Model model) {
    model.addAttribute("student", new Student());
    return "students/add";
}

// 处理添加请求
@PostMapping("/add")
public String addStudent(@ModelAttribute Student student) {
    studentRepository.save(student);
    return "redirect:/students";
}

// 显示编辑表单
@GetMapping("/edit/{id}")
public String showEditForm(@PathVariable Long id, Model model) {
    Student student = studentRepository.findById(id)
            .orElseThrow(() -> new IllegalArgumentException("无效的学生ID:" + id));
    model.addAttribute("student", student);
    return "students/edit";
}

// 处理更新请求
@PostMapping("/update/{id}")
public String updateStudent(@PathVariable Long id, @ModelAttribute Student student) {
    student.setId(id);
    studentRepository.save(student);
    return "redirect:/students";
}

// 删除学生
@GetMapping("/delete/{id}")
public String deleteStudent(@PathVariable Long id) {
    studentRepository.deleteById(id);
    return "redirect:/students";
}

}
package org.example.student123;

import org.example.student123.Student;
import org.springframework.data.jpa.repository.JpaRepository;

public interface StudentRepository extends JpaRepository<Student, Long> {
// 简单的CRUD操作已由JpaRepository提供
}`

学生列表

添加学生

<table class="table table-striped">
    <thead>
    <tr>
        <th>ID</th>
        <th>姓名</th>
        <th>邮箱</th>
        <th>电话</th>
        <th>专业</th>
        <th>操作</th>
    </tr>
    </thead>
    <tbody>
    <tr th:each="student : ${students}">
        <td th:text="${student.id}"></td>
        <td th:text="${student.name}"></td>
        <td th:text="${student.email}"></td>
        <td th:text="${student.phone}"></td>
        <td th:text="${student.department}"></td>
        <td>
            <a th:href="@{/students/edit/{id}(id=${student.id})}"
               class="btn btn-warning btn-sm">编辑</a>
            <a th:href="@{/students/delete/{id}(id=${student.id})}"
               class="btn btn-danger btn-sm"
               onclick="return confirm('确定要删除吗？')">删除</a>
        </td>
    </tr>
    </tbody>
</table>

``