diff --git a/linus-boot/linus-module-demo/src/main/java/org/jeecg/modules/demo/yxgwf/service/impl/SolutionServiceImpl.java b/linus-boot/linus-module-demo/src/main/java/org/jeecg/modules/demo/yxgwf/service/impl/SolutionServiceImpl.java
index 9de935b..b94ffd5 100644
--- a/linus-boot/linus-module-demo/src/main/java/org/jeecg/modules/demo/yxgwf/service/impl/SolutionServiceImpl.java
+++ b/linus-boot/linus-module-demo/src/main/java/org/jeecg/modules/demo/yxgwf/service/impl/SolutionServiceImpl.java
@@ -9,6 +9,7 @@ import org.jeecg.modules.demo.yxgwf.service.ISolutionService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
+import java.util.LinkedList;
 import java.util.List;
 
 @Service
@@ -21,16 +22,22 @@ public class SolutionServiceImpl extends ServiceImpl<SolutionMapper, Solution> i
     public List<Solution> getAll() {
         List<Solution> solution_list = solutionMapper.getAll();
         solution_list.forEach((e) -> {
-            String[] caseIds = e.cases.split(",");
-            List<Case> case_list = caseMapper.getAll(caseIds);
+            List<Case> case_list = new LinkedList<>();
+            if(e.cases != null ){
+                String[] caseIds = e.cases.split(",");
+                case_list = caseMapper.getAll(caseIds);
+            }
             e.caseslist = case_list;
         });
         return solution_list;
     }
     public Solution getInfoAll(String id) {
         Solution solution = solutionMapper.getInfoAll(id);
-        String[] caseIds = solution.cases.split(",");
-        List<Case> case_list = caseMapper.getAll(caseIds);
+        List<Case> case_list = new LinkedList<>();
+        if(solution.cases != null ){
+            String[] caseIds = solution.cases.split(",");
+            case_list = caseMapper.getAll(caseIds);
+        }
         solution.caseslist = case_list;
         return solution;
     }