添加对于工作流任务不存在，返回为Null时的判断，解决app端任务统计之后数据查看报错的问题

amos-boot-module/amos-boot-module-biz/amos-boot-module-patrol-biz/src/main/java/com/yeejoin/amos/patrol/business/service/impl/LatentDangerServiceImpl.java

@@ -7,6 +7,7 @@ import com.google.common.base.Joiner;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
+import com.itextpdf.text.pdf.PdfStructTreeController.returnType;
 import com.yeejoin.amos.boot.biz.common.bo.DepartmentBo;
 import com.yeejoin.amos.boot.biz.common.bo.RoleBo;
 import com.yeejoin.amos.boot.biz.common.service.impl.WorkflowExcuteServiceImpl;
@@ -79,6 +80,8 @@ import com.yeejoin.amos.patrol.dao.entity.PointClassify;
 import com.yeejoin.amos.patrol.exception.YeeException;
 import com.yeejoin.amos.patrol.feign.RemoteSecurityService;
 import com.yeejoin.amos.patrol.mqtt.WebMqttComponent;
+
+import org.apache.commons.lang3.ObjectUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -107,6 +110,7 @@ import java.util.Map;
 import java.util.Set;
 import java.util.stream.Collectors;
 
+import static org.hamcrest.CoreMatchers.nullValue;
 import static org.typroject.tyboot.core.foundation.context.RequestContext.getProduct;
 
 @Service("latentDangerService")
@@ -565,13 +569,17 @@ public class LatentDangerServiceImpl implements ILatentDangerService {
                                AgencyUserModel user,
                                String loginOrgCode,
                                String deptId) {
-        JSONObject respBody;
+    	  List<LatentDangerListVo> voList = Lists.newArrayList();
+    	JSONObject respBody;
         Date startDate = new Date();
         if (latentDangerListParam.getIsHandle()) {
             respBody = remoteWorkFlowService.completedPageTask(user.getUserName(),latentDangerListParam.getBelongType());
         } else {
             respBody = remoteWorkFlowService.pageTask(user.getUserId(),latentDangerListParam.getBelongType());
         }
+        if(ObjectUtils.isEmpty(respBody)) {
+        	return null;
+        }
         Date endDate = new Date();
         logger.info("-------------------------工作流列表时间" + (endDate.getTime() - startDate.getTime()));
         JSONArray taskJsonList = respBody.getJSONArray("data");
@@ -604,7 +612,6 @@ public class LatentDangerServiceImpl implements ILatentDangerService {
 //        map.put("permissions", permissions);
 //        List<LatentDangerBo> list = latentDangerMapper.listByMap(map);
 //        Long count = 0L;
-        List<LatentDangerListVo> voList = Lists.newArrayList();
         Date date = new Date();
         if (!CollectionUtils.isEmpty(dangerList)) {
             Set<String> userIds = Sets.newHashSet();