撤回按钮，发起人和admin可见，发起人在第一个人没有审核的情况下可以撤回，admin在任意时候都能撤回

src/main/java/cn/palmte/work/controller/backend/ProcessController.java

@@ -655,6 +655,11 @@ public class ProcessController {
       if (!Objects.equals(admin.getId(), applyPersonId)) {
         throw ErrorMessageException.failed("流程不属于自己");
       }
+      List<ProjectTaskRecord> projectTaskRecords = getProjectTaskRecords(id, process.getProcessType());
+      if (projectTaskRecords.size() > 1) {
+        // 有多个人审核过
+        throw ErrorMessageException.failed("流程已经在审核中，不能撤回");
+      }
       processService.revoke(id);
     }
   }
@@ -690,10 +695,9 @@ public class ProcessController {
 //    ret.add(create("2021-02-03 22:01:12", "系统产品集成部尹浩审核已通过"));
 //    ret.add(create("2021-03-03 22:05:12", "财务部主管何丹审核已通过"));
 
-    ProjectProcess process = processService.getById(id);
+    ProjectProcess process = obtainProjectProcess(id);
     ProcessType processType = process.getProcessType();
-    List<ProjectTaskRecord> projectTaskRecords = projectTaskRecordService.listV2(id,
-            processType == ProcessType.sale_contract ? ActProjectTypeEnum.SALE_CONTRACT : ActProjectTypeEnum.BUSINESS_PURCHASE);
+    List<ProjectTaskRecord> projectTaskRecords = getProjectTaskRecords(id, processType);
     SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
     return projectTaskRecords.stream()
             .map(item -> {
@@ -702,6 +706,11 @@ public class ProcessController {
             }).collect(Collectors.toList());
   }
 
+  private List<ProjectTaskRecord> getProjectTaskRecords(int id, ProcessType processType) {
+    return projectTaskRecordService.listV2(id,
+            processType == ProcessType.sale_contract ? ActProjectTypeEnum.SALE_CONTRACT : ActProjectTypeEnum.BUSINESS_PURCHASE);
+  }
+
   private Map<String, String> create(String timestamp, String content) {
     Map<String, String> map = new HashMap<>();
     map.put("content", content);