diff --git a/diboot-core-starter/src/main/java/com/diboot/core/starter/CoreAutoConfig.java b/diboot-core-starter/src/main/java/com/diboot/core/starter/CoreAutoConfig.java
index 1b645c15760b1b4663816a704dc8b37644c80127..1d6cbd346eb70ed0c4b2c3335bef0dfb87af0aa7 100644
--- a/diboot-core-starter/src/main/java/com/diboot/core/starter/CoreAutoConfig.java
+++ b/diboot-core-starter/src/main/java/com/diboot/core/starter/CoreAutoConfig.java
@@ -18,6 +18,7 @@ package com.diboot.core.starter;
 import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
 import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
 import com.diboot.core.data.encrypt.ProtectInterceptor;
+import com.diboot.core.util.ContextHelper;
 import com.diboot.core.util.D;
 import com.diboot.core.util.DateConverter;
 import com.fasterxml.jackson.annotation.JsonInclude;
@@ -91,7 +92,11 @@ public class CoreAutoConfig implements WebMvcConfigurer {
     @ConditionalOnMissingBean
     public MappingJackson2HttpMessageConverter jacksonMessageConverter(){
         MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
-        ObjectMapper objectMapper = converter.getObjectMapper();
+        // 优先使用全局默认ObjectMapper, 保证ObjectMapper全局配置相同
+        ObjectMapper objectMapper = ContextHelper.getBean(ObjectMapper.class);
+        if (objectMapper == null) {
+            objectMapper = converter.getObjectMapper();
+        }
         // Long转换成String避免JS超长问题
         SimpleModule simpleModule = new SimpleModule();
         simpleModule.addSerializer(Long.class, ToStringSerializer.instance);
@@ -103,8 +108,6 @@ public class CoreAutoConfig implements WebMvcConfigurer {
         JavaTimeModule javaTimeModule = new JavaTimeModule();
         // LocalDateTime
         DateTimeFormatter localDateTimeFormatter = DateTimeFormatter.ofPattern(D.FORMAT_DATETIME_Y4MDHMS);
-        javaTimeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(localDateTimeFormatter));
-
         javaTimeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(localDateTimeFormatter));
         javaTimeModule.addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(localDateTimeFormatter));
         // LocalDate