字符串空处理

src/main/java/com/uas/service/Impl/CustomerServiceImpl.java

@@ -1046,13 +1046,16 @@ public class CustomerServiceImpl implements CustomerService {
         if ("[]".equals(stringArray)||stringArray==null){
             return null;
         }
-    List<String> strings = JSON.parseArray(stringArray, String.class);
-        String str="";
-    for (String string:strings) {
-        str=str+string+"/";
+        List<String> strings = JSON.parseArray(stringArray, String.class);
+            String str="";
+        for (String string:strings) {
+            str=str+string+"/";
+        }
+        if ("".equals(str)){
+            return null;
+        }
+        return str.substring(0,str.length()-1);
     }
-    return str.substring(0,str.length()-1);
-}
 
 private String list2String(List<String> list){
     StringBuffer str = new StringBuffer();