空格筛选

src/main/java/com/example/demo/serviceImpl/RefundServiceImpl.java

@@ -21,7 +21,9 @@ import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
+import java.util.Objects;
 import java.util.concurrent.atomic.AtomicInteger;
+import java.util.stream.Collectors;
 
 /**
  * @program: gold-java
@@ -141,7 +143,11 @@ public class RefundServiceImpl implements RefundService {
     @Override
     public List<String> getRefundType() {
         List<String> list = refundMapper.getRefundType();
-        return list;
+        List<String> filteredList = list.stream()
+                .filter(Objects::nonNull)  // 过滤掉 null 值
+                .filter(str -> !str.trim().isEmpty())  // 过滤掉空字符串和仅包含空白字符的字符串
+                .collect(Collectors.toList());
+        return filteredList;
     }
 
     @Override