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src/main/java/org/cmh/backend/MeetingManagement/controller/MeetingController.java

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+package org.cmh.backend.MeetingManagement.controller;
+
+import org.cmh.backend.MeetingManagement.model.Meeting;
+import org.cmh.backend.MeetingManagement.service.MeetingService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.Map;
+
+@RestController
+@RequestMapping("/meetings")
+public class MeetingController {
+
+    @Autowired
+    private MeetingService meetingService;
+
+    @GetMapping("/listAll")
+    public ResponseEntity<List<Meeting>> listAll() {
+        List<Meeting> data = meetingService.getAllMeetings();
+        return ResponseEntity.ok(data);
+    }
+
+    @PostMapping("/addMeeting")
+    public ResponseEntity<Meeting> add(@RequestBody Map<String, String> credentials) {
+        try {
+            Meeting meeting = new Meeting();
+            if (credentials.get("id") != null) {
+                meeting.setId(Long.parseLong(credentials.get("id")));
+            }
+            meeting.setName(credentials.get("name"));
+            meeting.setOrganizer(credentials.get("organizer"));
+            meeting.setStartTime(LocalDateTime.parse(credentials.get("startTime")));
+            meeting.setEndTime(LocalDateTime.parse(credentials.get("endTime")));
+            meeting.setContent(credentials.get("content"));
+            meeting.setStatus(credentials.get("status"));
+
+            Meeting meetingAdd = meetingService.createMeeting(meeting);
+            return new ResponseEntity<>(meetingAdd, HttpStatus.CREATED);
+        } catch (Exception e) {
+            return new ResponseEntity<>(null, HttpStatus.BAD_REQUEST);
+        }
+    }
+
+    @PostMapping("/deleteMeeting")
+    public ResponseEntity<String> delete(@RequestBody Map<String, String> credentials) {
+        try {
+            meetingService.deleteMeeting(Long.valueOf(credentials.get("id")));
+            return new ResponseEntity<>("success", HttpStatus.OK);
+        } catch (Exception e) {
+            return new ResponseEntity<>("failure", HttpStatus.BAD_REQUEST);
+        }
+    }
+
+    @PostMapping("/updateMeeting")
+    public ResponseEntity<Meeting> update(@RequestBody Meeting meeting) {
+        try {
+            Meeting updatedMeeting = meetingService.updateMeeting(meeting.getId(), meeting);
+            return new ResponseEntity<>(updatedMeeting, HttpStatus.OK);
+        } catch (Exception e) {
+            return new ResponseEntity<>(null, HttpStatus.BAD_REQUEST);
+        }
+    }
+
+    @PostMapping("/getMeetingById")
+    public ResponseEntity<Meeting> getById(@RequestBody Map<String, String> credentials) {
+        try {
+            Meeting meeting = meetingService.getMeetingById(Long.valueOf(credentials.get("id"))).orElse(null);
+            return new ResponseEntity<>(meeting, HttpStatus.OK);
+        } catch (Exception e) {
+            return new ResponseEntity<>(null, HttpStatus.BAD_REQUEST);
+        }
+    }
+}

src/main/java/org/cmh/backend/MeetingManagement/model/Meeting.java

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+package org.cmh.backend.MeetingManagement.model;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import lombok.Getter;
+import lombok.Setter;
+import java.time.LocalDateTime;
+
+@Setter
+@Getter
+@Entity
+public class Meeting {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    private String name;
+    private String organizer;
+    private LocalDateTime startTime;
+    private LocalDateTime endTime;
+    private String content;
+    private String status;
+
+    public Meeting() {}
+
+    public Meeting(String name, String organizer, LocalDateTime startTime, LocalDateTime endTime, String content, String status) {
+        this.name = name;
+        this.organizer = organizer;
+        this.startTime = startTime;
+        this.endTime = endTime;
+        this.content = content;
+        this.status = status;
+    }
+
+    @Override
+    public String toString() {
+        return "Meeting{" +
+                "id=" + id +
+                ", name='" + name + '\'' +
+                ", organizer='" + organizer + '\'' +
+                ", startTime=" + startTime +
+                ", endTime=" + endTime +
+                ", content='" + content + '\'' +
+                ", status='" + status + '\'' +
+                '}';
+    }
+}

src/main/java/org/cmh/backend/MeetingManagement/repository/MeetingRepository.java

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+package org.cmh.backend.MeetingManagement.repository;
+
+import org.cmh.backend.MeetingManagement.model.Meeting;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface MeetingRepository extends JpaRepository<Meeting, Long> {
+}

src/main/java/org/cmh/backend/MeetingManagement/service/MeetingService.java

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+package org.cmh.backend.MeetingManagement.service;
+
+import org.cmh.backend.MeetingManagement.model.Meeting;
+import org.cmh.backend.MeetingManagement.repository.MeetingRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+import java.util.Optional;
+
+@Service
+public class MeetingService {
+    @Autowired
+    private MeetingRepository meetingRepository;
+
+    public List<Meeting> getAllMeetings() {
+        return meetingRepository.findAll();
+    }
+
+    public Optional<Meeting> getMeetingById(Long id) {
+        return meetingRepository.findById(id);
+    }
+
+    public Meeting createMeeting(Meeting meeting) {
+        validateMeeting(meeting);
+        return meetingRepository.save(meeting);
+    }
+
+    public Meeting updateMeeting(Long id, Meeting meetingDetails) {
+        validateMeeting(meetingDetails);
+        Meeting meeting = meetingRepository.findById(id)
+                .orElseThrow(() -> new RuntimeException("Meeting not found with id " + id));
+        meeting.setName(meetingDetails.getName());
+        meeting.setOrganizer(meetingDetails.getOrganizer());
+        meeting.setStartTime(meetingDetails.getStartTime());
+        meeting.setEndTime(meetingDetails.getEndTime());
+        meeting.setContent(meetingDetails.getContent());
+        meeting.setStatus(meetingDetails.getStatus());
+        return meetingRepository.save(meeting);
+    }
+
+    public void deleteMeeting(Long id) {
+        Meeting meeting = meetingRepository.findById(id)
+                .orElseThrow(() -> new RuntimeException("Meeting not found with id " + id));
+        meetingRepository.delete(meeting);
+    }
+
+    private void validateMeeting(Meeting meeting) {
+        if (meeting.getName() == null || meeting.getName().isEmpty()) {
+            throw new RuntimeException("会议名称不能为空");
+        }
+        if (meeting.getOrganizer() == null || meeting.getOrganizer().isEmpty()) {
+            throw new RuntimeException("组织者不能为空");
+        }
+        if (meeting.getStartTime() == null) {
+            throw new RuntimeException("开始时间不能为空");
+        }
+        if (meeting.getEndTime() == null) {
+            throw new RuntimeException("结束时间不能为空");
+        }
+        if (meeting.getStatus() == null || meeting.getStatus().isEmpty()) {
+            throw new RuntimeException("状态不能为空");
+        }
+    }
+}