diff --git a/src/main/resources/modules/SpringBoot/java/frame/excel/converter/StringConverter.java b/src/main/resources/modules/SpringBoot/java/frame/excel/converter/StringConverter.java
index 35493117..cfaed62c 100644
--- a/src/main/resources/modules/SpringBoot/java/frame/excel/converter/StringConverter.java
+++ b/src/main/resources/modules/SpringBoot/java/frame/excel/converter/StringConverter.java
@@ -11,7 +11,7 @@ public class StringConverter implements Converter<String> {
 
     @Override
     public String convert(String var) {
-        return var;
+        return var != null ? var.trim() : null;
     }
 
     @Override