后端完成版（也许？

# Conflicts:
#	src/main/java/org/cmh/backend/authentication/controller/UserController.java

pom.xml

@@ -164,6 +164,17 @@
 			<artifactId>mysql</artifactId>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>org.apache.poi</groupId>
+			<artifactId>poi-ooxml</artifactId>
+			<version>5.2.3</version> <!-- 请使用最新版本 -->
+		</dependency><!-- BY JERRY -->
+		<dependency>
+			<groupId>javax.servlet</groupId>
+			<artifactId>javax.servlet-api</artifactId>
+			<version>4.0.1</version> <!-- 请使用最新版本 -->
+			<scope>provided</scope>
+		</dependency>
 	</dependencies>
 
 	<build>

src/main/java/org/cmh/backend/Config/SecurityConfig.java

@@ -4,6 +4,8 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.annotation.web.configurers.AbstractHttpConfigurer;
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.security.web.SecurityFilterChain;
 
 @Configuration
@@ -11,13 +13,22 @@ public class SecurityConfig {
 
     @Bean
     public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
-        // Use the new API to disable CSRF
+        // Disable CSRF
         http.csrf(AbstractHttpConfigurer::disable)
-                // Permit all requests
+                // Permit all requests to all endpoints
                 .authorizeHttpRequests(authorize -> authorize
-                        .anyRequest().permitAll()
-                );
+                        .anyRequest().permitAll() // Allow all requests without authentication
+                )
+                // Disable form login
+                .formLogin(AbstractHttpConfigurer::disable)
+                // Disable logout
+                .logout(AbstractHttpConfigurer::disable);
 
         return http.build();
     }
+
+    @Bean
+    public PasswordEncoder passwordEncoder() {
+        return new BCryptPasswordEncoder();
+    }
 }

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

@@ -0,0 +1,203 @@
+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.time.OffsetDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.List;
+import java.util.Map;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import java.io.IOException;
+import org.apache.poi.xssf.usermodel.XSSFWorkbook;
+import org.apache.poi.xssf.usermodel.XSSFSheet;
+import org.apache.poi.xssf.usermodel.XSSFRow;
+import javax.servlet.http.HttpServletResponse;
+
+
+@RestController
+@RequestMapping("/meetings")
+public class MeetingController {
+
+    @Autowired
+    private MeetingService meetingService;
+
+    private DateTimeFormatter formatter = DateTimeFormatter.ISO_OFFSET_DATE_TIME;
+
+    @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"));
+
+            // Parse startTime and endTime to OffsetDateTime, then convert to LocalDateTime
+            OffsetDateTime startTime = OffsetDateTime.parse(credentials.get("startTime"), formatter);
+            OffsetDateTime endTime = OffsetDateTime.parse(credentials.get("endTime"), formatter);
+            meeting.setStartTime(startTime.toLocalDateTime());
+            meeting.setEndTime(endTime.toLocalDateTime());
+
+            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 Map<String, String> credentials) {
+        try {
+            // Validate and parse id
+            String idStr = credentials.get("id");
+            if (idStr == null || idStr.isEmpty()) {
+                throw new IllegalArgumentException("ID cannot be null or empty");
+            }
+            Long id = Long.parseLong(idStr);
+
+            // Validate and parse other fields
+            String name = credentials.get("name");
+            if (name == null || name.isEmpty()) {
+                throw new IllegalArgumentException("Name cannot be null or empty");
+            }
+
+            String organizer = credentials.get("organizer");
+            if (organizer == null || organizer.isEmpty()) {
+                throw new IllegalArgumentException("Organizer cannot be null or empty");
+            }
+
+            String startTimeStr = credentials.get("startTime");
+            if (startTimeStr == null || startTimeStr.isEmpty()) {
+                throw new IllegalArgumentException("Start time cannot be null or empty");
+            }
+            LocalDateTime startTime = LocalDateTime.parse(startTimeStr, DateTimeFormatter.ISO_LOCAL_DATE_TIME);
+
+            String endTimeStr = credentials.get("endTime");
+            if (endTimeStr == null || endTimeStr.isEmpty()) {
+                throw new IllegalArgumentException("End time cannot be null or empty");
+            }
+            LocalDateTime endTime = LocalDateTime.parse(endTimeStr, DateTimeFormatter.ISO_LOCAL_DATE_TIME);
+
+            String content = credentials.get("content");
+            if (content == null || content.isEmpty()) {
+                throw new IllegalArgumentException("Content cannot be null or empty");
+            }
+
+            String status = credentials.get("status");
+            if (status == null || status.isEmpty()) {
+                throw new IllegalArgumentException("Status cannot be null or empty");
+            }
+
+            // Create and update meeting
+            Meeting meeting = new Meeting();
+            meeting.setId(id);
+            meeting.setName(name);
+            meeting.setOrganizer(organizer);
+            meeting.setStartTime(startTime);
+            meeting.setEndTime(endTime);
+            meeting.setContent(content);
+            meeting.setStatus(status);
+
+            Meeting updatedMeeting = meetingService.updateMeeting(meeting.getId(), meeting);
+            return new ResponseEntity<>(updatedMeeting, HttpStatus.OK);
+        } catch (IllegalArgumentException e) {
+            return new ResponseEntity<>(null, HttpStatus.BAD_REQUEST);
+        } catch (Exception e) {
+            e.printStackTrace(); // 打印异常信息
+            return new ResponseEntity<>(null, HttpStatus.INTERNAL_SERVER_ERROR);
+        }
+    }
+
+    @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);
+        }
+    }
+
+    @PostMapping("/searchMeetings")
+    public ResponseEntity<List<Meeting>> searchMeetings(@RequestBody Map<String, String> params) {
+        String name = params.get("name");
+        String organizer = params.get("organizer");
+        OffsetDateTime startTimeStr = OffsetDateTime.parse(params.get("startTime"),formatter);
+        LocalDateTime startTime1 = (startTimeStr.toLocalDateTime());
+        //LocalDateTime startTime = startTimeStr != null ? LocalDateTime.parse(startTimeStr) : null;
+
+        List<Meeting> meetings = meetingService.searchMeetings(name, organizer, startTime1);
+        return new ResponseEntity<>(meetings, HttpStatus.OK);
+    }
+
+    @PostMapping("/export")
+    public void exportMeetings(@RequestBody Map<String, String> params, HttpServletResponse response) {
+        String name = params.get("name");
+        String organizer = params.get("organizer");
+        String startTimeStr = params.get("startTime");
+        LocalDateTime startTime = startTimeStr != null ? LocalDateTime.parse(startTimeStr) : null;
+
+        List<Meeting> meetings = meetingService.searchMeetings(name, organizer, startTime);
+
+        // 生成Excel文件
+        try (XSSFWorkbook workbook = new XSSFWorkbook()) {
+            XSSFSheet sheet = workbook.createSheet("Meetings");
+            XSSFRow header = sheet.createRow(0);
+            header.createCell(0).setCellValue("会议ID");
+            header.createCell(1).setCellValue("会议名称");
+            header.createCell(2).setCellValue("组织者");
+            header.createCell(3).setCellValue("开始时间");
+            header.createCell(4).setCellValue("结束时间");
+            header.createCell(5).setCellValue("状态");
+
+            int rowIdx = 1;
+            for (Meeting meeting : meetings) {
+                XSSFRow row = sheet.createRow(rowIdx++);
+                row.createCell(0).setCellValue(meeting.getId());
+                row.createCell(1).setCellValue(meeting.getName());
+                row.createCell(2).setCellValue(meeting.getOrganizer());
+                row.createCell(3).setCellValue(meeting.getStartTime().toString());
+                row.createCell(4).setCellValue(meeting.getEndTime().toString());
+                row.createCell(5).setCellValue(meeting.getStatus());
+            }
+
+            response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
+            response.setHeader("Content-Disposition", "attachment; filename=meetings.xlsx");
+            workbook.write(response.getOutputStream());
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+
+}

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

@@ -0,0 +1,48 @@
+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;  // Changed to LocalDateTime
+    private LocalDateTime endTime;    // Changed to LocalDateTime
+    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

@@ -0,0 +1,15 @@
+package org.cmh.backend.MeetingManagement.repository;
+
+import org.cmh.backend.MeetingManagement.model.Meeting;
+import org.springframework.data.jpa.repository.JpaRepository;
+import java.time.LocalDateTime;
+import java.util.List;
+import org.springframework.data.jpa.repository.Query;
+
+public interface MeetingRepository extends JpaRepository<Meeting, Long> {
+    @Query("SELECT m FROM Meeting m WHERE " +
+            "(?1 IS NULL OR m.name LIKE %?1%) AND " +
+            "(?2 IS NULL OR m.organizer LIKE %?2%) AND " +
+            "(?3 IS NULL OR m.startTime >= ?3)")
+    List<Meeting> searchMeetings(String name, String organizer, LocalDateTime startTime);
+}

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

@@ -0,0 +1,74 @@
+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.time.LocalDateTime;
+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");
+        }
+    }
+
+
+        public List<Meeting> searchMeetings(String name, String organizer, LocalDateTime startTime) {
+            // 根据条件搜索会议
+            return meetingRepository.searchMeetings(name, organizer, startTime);
+        }
+    }
+
+

src/main/java/org/cmh/backend/authentication/service/UserService.java

@@ -3,6 +3,7 @@ package org.cmh.backend.authentication.service;
 import org.cmh.backend.authentication.model.User;
 import org.cmh.backend.authentication.repository.UserRepository;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.stereotype.Service;
 
 @Service
@@ -10,7 +11,23 @@ public class UserService {
     @Autowired
     private UserRepository userRepository;
 
+    @Autowired
+    private PasswordEncoder passwordEncoder;
+
+    // 获取用户信息通过用户名
     public User getUserByUsername(String username) {
         return userRepository.findByUsername(username);
     }
+
+    // 保存用户信息
+    public void saveUser(User user) {
+        // 对密码进行加密
+        user.setPassword(passwordEncoder.encode(user.getPassword()));
+        userRepository.save(user);
+    }
+
+    // 检查用户名是否已经存在
+    public boolean isUsernameTaken(String username) {
+        return userRepository.findByUsername(username) != null;
+    }
 }