增加加载管理员列表接口和用户列表接口

src/main/java/com/campus/water/controller/web/UserController.java

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+package com.campus.water.controller.web;
+
+import com.campus.water.entity.User;
+import com.campus.water.service.UserService;
+import com.campus.water.util.ResultVO;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.access.prepost.PreAuthorize;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/api/web/user")
+@RequiredArgsConstructor
+@Tag(name = "学生管理接口", description = "Web管理端学生列表查询接口")
+public class UserController {
+
+    private final UserService userService;
+
+    /**
+     * 加载学生用户列表（支持筛选）
+     * @param studentName 学生姓名模糊查询（可选）
+     * @param status 状态筛选（可选，值：active/inactive）
+     */
+    @GetMapping("/list")
+    @PreAuthorize("hasRole('ADMIN')") // 仅管理员可访问
+    @Operation(summary = "获取学生用户列表", description = "支持按姓名和状态筛选学生")
+    public ResponseEntity<ResultVO<List<User>>> getUserList(
+            @RequestParam(required = false) String studentName,
+            @RequestParam(required = false) String status
+    ) {
+        try {
+            // 转换状态参数为枚举类型
+            User.UserStatus userStatus = status != null ? User.UserStatus.valueOf(status) : null;
+
+            // 调用服务层查询
+            List<User> userList = userService.getUserList(studentName, userStatus);
+            return ResponseEntity.ok(ResultVO.success(userList));
+        } catch (IllegalArgumentException e) {
+            // 处理枚举参数错误
+            return ResponseEntity.ok(ResultVO.error(400, "无效的状态参数: " + e.getMessage()));
+        } catch (Exception e) {
+            // 处理其他异常
+            return ResponseEntity.ok(ResultVO.error(500, "查询学生列表失败: " + e.getMessage()));
+        }
+    }
+}

src/main/java/com/campus/water/service/UserService.java

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+package com.campus.water.service;
+
+import com.campus.water.entity.User;
+import com.campus.water.mapper.UserRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+@RequiredArgsConstructor
+public class UserService {
+
+    private final UserRepository userRepository;
+
+    /**
+     * 获取学生用户列表（支持按姓名和状态筛选）
+     */
+    public List<User> getUserList(String studentName, User.UserStatus status) {
+        if (studentName != null && status != null) {
+            // 按姓名模糊查询和状态筛选
+            return userRepository.findByStudentNameContainingAndStatus(studentName, status);
+        } else if (studentName != null) {
+            // 仅按姓名模糊查询
+            return userRepository.findByStudentNameContaining(studentName);
+        } else if (status != null) {
+            // 仅按状态筛选
+            return userRepository.findByStatus(status);
+        } else {
+            // 查询所有学生
+            return userRepository.findAll();
+        }
+    }
+}