修复了Task的查询问题，添加了交接接口和下载导入员工模板的接口，修改了导入员工的接口uri

src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/controller/ProjectGroupController.java

@@ -20,6 +20,7 @@ import lombok.SneakyThrows;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 
+import java.util.Map;
 import java.util.Objects;
 
 /**
@@ -122,4 +123,20 @@ public class ProjectGroupController {
         }
         return ResponseList.ofSuccess(taskService.getProjectProcessOfStaff(token, projectId));
     }
+
+    //TODO: TEST
+    @Operation(description = "请求体是一个key为taskId，value为staffId的map")
+    @SneakyThrows
+    @PutMapping("/{staffId}/transfer")
+    public ResponseMap transferStaffTasks(
+            @RequestHeader("Token") String token,
+            @PathVariable Integer projectId,
+            @PathVariable Integer staffId,
+            @RequestBody Map<Long, Integer> transferMap
+    ) {
+        if (taskService.transferStaffTasks(token, projectId, staffId, transferMap)) {
+            return ResponseMap.ofSuccess();
+        }
+        throw new BadRequestException(BadRequestException.OPERATE_FAILED);
+    }
 }

src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/controller/StaffController.java

@@ -2,8 +2,11 @@ package cn.edu.hfut.rmdjzz.projectmanagement.controller;
 
 import cn.edu.hfut.rmdjzz.projectmanagement.entity.Staff;
 import cn.edu.hfut.rmdjzz.projectmanagement.exception.BadRequestException;
+import cn.edu.hfut.rmdjzz.projectmanagement.exception.ForbiddenException;
 import cn.edu.hfut.rmdjzz.projectmanagement.exception.TokenException;
 import cn.edu.hfut.rmdjzz.projectmanagement.service.IStaffService;
+import cn.edu.hfut.rmdjzz.projectmanagement.utils.FileUtils;
+import cn.edu.hfut.rmdjzz.projectmanagement.utils.TokenUtils;
 import cn.edu.hfut.rmdjzz.projectmanagement.utils.http.ResponseMap;
 import io.swagger.v3.oas.annotations.Parameter;
 import lombok.SneakyThrows;
@@ -12,6 +15,7 @@ import org.springframework.util.DigestUtils;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 
+import javax.servlet.http.HttpServletResponse;
 import java.util.Objects;
 
 /**
@@ -43,8 +47,12 @@ public class StaffController {
     }
 
     @SneakyThrows
-    @PostMapping(value = "/staff/import")
+    @PostMapping(value = "/import")
-    public ResponseMap upload(@RequestHeader("Token") String token, @RequestParam("uploadFile") MultipartFile uploadFile,@RequestParam("digest") String digest) {
+    public ResponseMap importStaffs(
+            @RequestHeader("Token") String token,
+            @RequestParam("File-Digest") String digest,
+            @RequestParam("uploadFile") MultipartFile uploadFile
+    ) {
         if (null == uploadFile) {
             throw new BadRequestException("文件传输错误");
         }
@@ -52,10 +60,25 @@ public class StaffController {
         if (!fileName.endsWith(".xlsx")) {
             throw new BadRequestException("文件类型错误");
         }
-        if(!Objects.equals(DigestUtils.md5DigestAsHex(uploadFile.getBytes()).toLowerCase(),digest.toLowerCase())){
+        if (!Objects.equals(DigestUtils.md5DigestAsHex(uploadFile.getBytes()).toLowerCase(), digest.toLowerCase())) {
             throw new BadRequestException("文件传输错误");
         }
         Integer successCount = staffService.multiImport(token, uploadFile);
         return ResponseMap.ofSuccess("成功导入" + successCount + "条数据");
     }
+
+    @SneakyThrows
+    @GetMapping("/import/template")
+    public ResponseMap downloadTemplate(
+            @RequestHeader("Token") String token,
+            HttpServletResponse response
+    ) {
+        if (TokenUtils.getStaffGlobalLevel(token) > 2) {
+            throw new ForbiddenException(ForbiddenException.UNABLE_TO_OPERATE);
+        }
+        if (FileUtils.downloadResource("static/账户导入模板.xlsx", response)) {
+            return ResponseMap.ofSuccess();
+        }
+        throw new BadRequestException(BadRequestException.OPERATE_FAILED);
+    }
 }

src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/entity/Task.java

@@ -7,6 +7,7 @@ import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableLogic;
 import com.baomidou.mybatisplus.extension.handlers.JacksonTypeHandler;
 import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Builder;
 import lombok.Data;
 
 import java.time.LocalDateTime;
@@ -17,6 +18,7 @@ import java.util.Objects;
  * @author 阳勇权
  * @since 2022/7/4 11:07
  */
+@Builder
 @Data
 public class Task {
 

src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/ITaskService.java

@@ -45,4 +45,7 @@ public interface ITaskService extends IService<Task> {
     Task modifyTask(String token, Task task) throws BadRequestException, ForbiddenException;
 
     Map<String, List<TaskTrendDTO>> getProjectTaskTrend(String token, Integer projectId) throws BadRequestException, ForbiddenException;
+
+    Boolean transferStaffTasks(String token, Integer projectId, Integer transferredStaffId, Map<Long, Integer> transferMap) throws ForbiddenException, BadRequestException;
+
 }

src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/impl/TaskServiceImpl.java

@@ -12,6 +12,7 @@ import cn.edu.hfut.rmdjzz.projectmanagement.service.ITaskService;
 import cn.edu.hfut.rmdjzz.projectmanagement.utils.TokenUtils;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.baomidou.mybatisplus.extension.toolkit.SimpleQuery;
 import lombok.NonNull;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -353,4 +354,57 @@ public class TaskServiceImpl extends ServiceImpl<TaskMapper, Task> implements IT
         return taskTrendDTO;
     }
 
+    //不需要定义为事务，因为updateBatch已经定义为事务
+    @Override
+    public Boolean transferStaffTasks(String token, Integer projectId, Integer transferredStaffId, Map<Long, Integer> transferMap) throws ForbiddenException, BadRequestException {
+        if (projectGroupService.getProjectAccessLevel(token, projectId) == 0
+                || projectGroupService.getProjectAccessLevelIgnoreGlobalLevel(transferredStaffId, projectId) == 0) {
+            throw new ForbiddenException(IProjectGroupService.UNABLE_TO_ACCESS_PROJECT);
+        }
+        if (projectGroupService.compareProjectAccessLevel(projectId, token, transferredStaffId) < 0) {
+            throw new ForbiddenException(ForbiddenException.UNABLE_TO_OPERATE);
+        }
+
+        Map<Long, Task> originTransferTaskMap = SimpleQuery.keyMap(
+                Wrappers.<Task>lambdaQuery()
+                        .eq(Task::getTaskProjectId, projectId)
+                        .eq(Task::getTaskHolderId, transferredStaffId),
+                Task::getTaskId,
+                true
+        );
+        if (originTransferTaskMap.size() != transferMap.size()) {
+            throw new BadRequestException("未交接该员工的全部项目");
+        }
+
+        Set<Integer> targetStaffIdCache = new HashSet<>();
+        Set<Map.Entry<Long, Integer>> transferEntrySet = transferMap.entrySet();
+        for (Map.Entry<Long, Integer> transferEntry : transferEntrySet) {
+            Integer targetStaffId = transferEntry.getValue();
+            if (Objects.equals(targetStaffId, transferredStaffId)) {
+                throw new BadRequestException("不能将工作项交接给原员工");
+            }
+            if (!targetStaffIdCache.contains(targetStaffId)) {
+                if (projectGroupService.getProjectAccessLevelIgnoreGlobalLevel(targetStaffId, projectId) == 0) {
+                    throw new BadRequestException("交接目标员工不在该项目组中");
+                }
+                targetStaffIdCache.add(targetStaffId);
+            }
+            Task targetTask = originTransferTaskMap.remove(transferEntry.getKey());
+            if (targetTask == null || !Objects.equals(targetTask.getTaskHolderId(), transferredStaffId)) {
+                throw new BadRequestException("指定的交接任务不属于该项目或被交接员工");
+            }
+        }
+        if (!originTransferTaskMap.isEmpty()) {
+            throw new BadRequestException("未交接该员工的全部项目");
+        }
+
+        return updateBatchById(
+                transferEntrySet.parallelStream()
+                        .map(entry -> Task.builder()
+                                .taskId(entry.getKey())
+                                .taskHolderId(entry.getValue()).build())
+                        .collect(Collectors.toList())
+        );
+    }
+
 }

src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/utils/FileUtils.java

@@ -0,0 +1,31 @@
+package cn.edu.hfut.rmdjzz.projectmanagement.utils;
+
+import lombok.Cleanup;
+import org.springframework.util.DigestUtils;
+import org.springframework.util.MimeTypeUtils;
+
+import javax.servlet.ServletOutputStream;
+import javax.servlet.http.HttpServletResponse;
+import java.io.*;
+
+/**
+ * @author 佘语殊
+ * @since 2022/7/11 9:32
+ */
+public class FileUtils {
+    public static Boolean downloadResource(String resourceName, HttpServletResponse response) throws IOException {
+        @Cleanup InputStream is = FileUtils.class.getResourceAsStream(resourceName);
+        if (is == null) {
+            throw new FileNotFoundException("该文件不存在");
+        }
+        @Cleanup BufferedInputStream bis = new BufferedInputStream(is);
+        response.setContentType(MimeTypeUtils.APPLICATION_OCTET_STREAM_VALUE);
+        response.setCharacterEncoding("UTF-8");
+        ServletOutputStream out = response.getOutputStream();
+        response.addHeader("File-Digest", DigestUtils.md5DigestAsHex(bis));
+        @Cleanup BufferedOutputStream bos = new BufferedOutputStream(out);
+        bis.transferTo(bos);
+        bos.flush();
+        return true;
+    }
+}

src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/utils/http/ResponseMap.java

@@ -75,7 +75,13 @@ public class ResponseMap implements IResponse {
         return of(HttpStatus.OK.value(), msg, data);
     }
 
+    /**
+     * @param data 类型为String则填入msg，否则填入data
+     */
     public static ResponseMap ofSuccess(Object data) {
+        if (data instanceof String msg) {
+            return of(HttpStatus.OK.value(), msg);
+        }
         return of(HttpStatus.OK.value(), SUCCESS, data);
     }
 
@@ -83,10 +89,6 @@ public class ResponseMap implements IResponse {
         return of(HttpStatus.OK.value(), msg, data, putNulls);
     }
 
-    public static ResponseMap ofSuccess(String msg) {
-        return of(HttpStatus.OK.value(), msg);
-    }
-
     public static ResponseMap ofSuccess() {
         return of(HttpStatus.OK.value(), SUCCESS);
     }