实验室学生、研究生信息管理系统-计算机毕设Java|springboot实战项目

    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.bind.annotation.*;
    import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
    import com.example.demo.entity.User;
    import com.example.demo.service.UserService;
    
    import java.util.List;
    
    @RestController
    @RequestMapping("/users")
    public class UserController {
    
    private final UserService userService;
    
    @Autowired
    public UserController(UserService userService) {
        this.userService = userService;
    }
    
    // 获取所有用户列表
    @GetMapping
    public List<User> listUsers() {
        return userService.list();
    }
    
    // 根据条件查询用户
    @GetMapping("/{id}")
    public User getUserById(@PathVariable Long id) {
        return userService.getById(id);
    }
    
    // 新增用户
    @PostMapping
    public void addUser(@RequestBody User user) {
        userService.save(user);
    }
    
    // 更新用户信息
    @PutMapping("/{id}")
    public void updateUser(@PathVariable Long id, @RequestBody User user) {
        user.setId(id);
        userService.updateById(user);
    }
    
    // 删除用户
    @DeleteMapping("/{id}")
    public void deleteUser(@PathVariable Long id) {
        userService.removeById(id);
    }
    
    // 根据条件查询用户列表
    @GetMapping("/search")
    public List<User> searchUsers(@RequestParam(required = false) String name,
                                  @RequestParam(required = false) Integer age) {
        QueryWrapper<User> queryWrapper = new QueryWrapper<>();
        if (name != null && !name.isEmpty()) {
            queryWrapper.like("name", name);
        }
        if (age != null) {
            queryWrapper.eq("age", age);
        }
        return userService.list(queryWrapper);
    }
    }
    
    
    java
    
    
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