diff --git a/src/main/java/com/bsd/cases/service/impl/CaseContentServiceImpl.java b/src/main/java/com/bsd/cases/service/impl/CaseContentServiceImpl.java
index 4dac86e..1c166a1 100644
--- a/src/main/java/com/bsd/cases/service/impl/CaseContentServiceImpl.java
+++ b/src/main/java/com/bsd/cases/service/impl/CaseContentServiceImpl.java
@@ -359,7 +359,10 @@ public class CaseContentServiceImpl extends BaseServiceImpl<CaseContentMapper, C
         CaseContentDetailBakVo caseContentDetailBakVo = new CaseContentDetailBakVo();
         caseContentDetailBakVo.setId(contentId);
         caseContentDetailBakVo.setCategoryId(caseContent.getCategoryId());
-        String content = new String(caseContent.getContent(), "UTF-8");
+        String content = null;
+        if (null != caseContent.getContent()){
+            content = new String(caseContent.getContent(), "utf8");
+        }
         caseContentDetailBakVo.setContentStr(content);
         caseContentDetailBakVo.setContentTitle(caseContent.getContentTitle());
         caseContentDetailBakVo.setUrl(caseContent.getUrl());