修改bug

common/src/main/java/org/jiayunet/config/JacksonConfig.java

@@ -24,7 +24,24 @@ public class JacksonConfig {
     private static final JsonSerializer<Long> LONG_SERIALIZER = new JsonSerializer<Long>() {
         @Override
         public void serialize(Long value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
-            gen.writeString(value.toString());
+            if (value == null) {
+                gen.writeNull();
+            } else {
+                gen.writeString(value.toString());
+            }
+        }
+    };
+
+    private static final JsonSerializer<Object> NUMBER_TO_STRING_SERIALIZER = new JsonSerializer<Object>() {
+        @Override
+        public void serialize(Object value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
+            if (value == null) {
+                gen.writeNull();
+            } else if (value instanceof Number) {
+                gen.writeString(String.valueOf(((Number) value).longValue()));
+            } else {
+                gen.writeString(value.toString());
+            }
         }
     };
 
@@ -38,11 +55,16 @@ public class JacksonConfig {
 
     @Bean
     public ObjectMapper objectMapper(Jackson2ObjectMapperBuilder builder) {
-        return builder
-                .serializerByType(Long.class, LONG_SERIALIZER)
-                .serializerByType(long.class, LONG_SERIALIZER)
+        ObjectMapper mapper = builder
                 .deserializerByType(Long.class, LONG_DESERIALIZER)
                 .deserializerByType(long.class, LONG_DESERIALIZER)
                 .build();
+        
+        // 使用兼容 Number 类型的序列化器
+        mapper.registerModule(new com.fasterxml.jackson.databind.module.SimpleModule()
+                .addSerializer(Long.class, NUMBER_TO_STRING_SERIALIZER)
+                .addSerializer(long.class, NUMBER_TO_STRING_SERIALIZER));
+        
+        return mapper;
     }
 }