diff --git a/java/NullSerializer.java b/java/NullSerializer.java
new file mode 100644
index 0000000000000000000000000000000000000000..69fc798c329d9d54cacc053d2c7b82ff23841846
--- /dev/null
+++ b/java/NullSerializer.java
@@ -0,0 +1,20 @@
+/**
+ * 前端格式转换 我总觉得有问题，但是又没毛病 -_-!!!
+ */
+public class NullSerializer {
+    public static void main(String[] args) {
+        FastJsonHttpMessageConverter fastJsonHttpMessageConverter = new FastJsonHttpMessageConverter();
+        FastJsonConfig config = new FastJsonConfig();
+        config.setSerializeFilters( new ValueFilter() {
+            @Override
+            public Object process(Object object, String s, Object value) {
+                //数组为空 给 "" 应该也是可以的的吧
+                if(value==null && !s.equals("data")){
+                    return "";
+                }
+                return value;
+            }
+        });
+        fastJsonHttpMessageConverter.setFastJsonConfig(config);
+    }
+}
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