modify:增加去重

yanxuan-qc-change-system-biz/src/main/java/com/netease/mail/yanxuan/change/biz/biz/ChangeFlowBiz.java

@@ -10,14 +10,7 @@ import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.net.URLEncoder;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Optional;
-import java.util.UUID;
+import java.util.*;
 import java.util.stream.Collectors;
 
 import javax.servlet.http.HttpServletResponse;
@@ -871,6 +864,8 @@ public class ChangeFlowBiz {
                 String participateChangeExecDepartment = c.getParticipateChangeExecDepartment();
                 if (StringUtils.isNotBlank(participateChangeExecDepartment)) {
                     changeFlowVO.setExecDepartmentStrList(JSON.parseArray(participateChangeExecDepartment, String.class));
+                    HashSet<String> validDep = new HashSet<>(changeFlowVO.getExecDepartmentStrList());
+                    changeFlowVO.setExecDepartmentStrList(new ArrayList<>(validDep));
                 }
                 changeFlowVO.setCreateTime(c.getCreateTime());
                 changeFlowVO.setChangeConfirmResultTime(c.getChangeConfirmResultTime());