fix(core): 修复 Jackson 序列化 LocalDateTime 问题

- 新增 JacksonConfig 配置类，支持 Java 8 时间类型序列化
- 添加 TestController 用于验证 LocalDateTime 序列化功能
- 更新 application.yml 配置，禁用时间戳序列化
-修复报告详细说明了问题原因、修复方案和验证方法

src/main/java/com/gxwebsoft/common/core/config/JacksonConfig.java

@@ -0,0 +1,77 @@
+package com.gxwebsoft.common.core.config;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
+import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateDeserializer;
+import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
+import com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer;
+import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;
+import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
+import com.fasterxml.jackson.datatype.jsr310.ser.LocalTimeSerializer;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Primary;
+import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
+
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.LocalTime;
+import java.time.format.DateTimeFormatter;
+
+/**
+ * Jackson配置类
+ * 用于配置LocalDateTime等Java 8时间类型的序列化和反序列化
+ *
+ * @author WebSoft
+ * @since 2025-01-12
+ */
+@Configuration
+public class JacksonConfig {
+
+    /**
+     * 时间格式化模式
+     */
+    private static final String DATE_TIME_PATTERN = "yyyy-MM-dd HH:mm:ss";
+    private static final String DATE_PATTERN = "yyyy-MM-dd";
+    private static final String TIME_PATTERN = "HH:mm:ss";
+
+    /**
+     * 配置ObjectMapper
+     */
+    @Bean
+    @Primary
+    public ObjectMapper objectMapper() {
+        return Jackson2ObjectMapperBuilder.json()
+                .modules(javaTimeModule())
+                .featuresToDisable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS)
+                .build();
+    }
+
+    /**
+     * Java时间模块配置
+     */
+    @Bean
+    public JavaTimeModule javaTimeModule() {
+        JavaTimeModule module = new JavaTimeModule();
+
+        // 时间格式化器
+        DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(DATE_TIME_PATTERN);
+        DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern(DATE_PATTERN);
+        DateTimeFormatter timeFormatter = DateTimeFormatter.ofPattern(TIME_PATTERN);
+
+        // LocalDateTime序列化和反序列化配置
+        module.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(dateTimeFormatter));
+        module.addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(dateTimeFormatter));
+
+        // LocalDate序列化和反序列化配置
+        module.addSerializer(LocalDate.class, new LocalDateSerializer(dateFormatter));
+        module.addDeserializer(LocalDate.class, new LocalDateDeserializer(dateFormatter));
+
+        // LocalTime序列化和反序列化配置
+        module.addSerializer(LocalTime.class, new LocalTimeSerializer(timeFormatter));
+        module.addDeserializer(LocalTime.class, new LocalTimeDeserializer(timeFormatter));
+
+        return module;
+    }
+}

src/main/java/com/gxwebsoft/common/core/controller/TestController.java

@@ -0,0 +1,35 @@
+package com.gxwebsoft.common.core.controller;
+
+import com.gxwebsoft.common.core.web.ApiResult;
+import com.gxwebsoft.common.core.web.BaseController;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.time.LocalDateTime;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 测试控制器
+ * 用于测试LocalDateTime序列化
+ *
+ * @author WebSoft
+ * @since 2025-01-12
+ */
+@Tag(name = "测试接口")
+@RestController
+@RequestMapping("/api/test")
+public class TestController extends BaseController {
+
+    @Operation(summary = "测试LocalDateTime序列化")
+    @GetMapping("/datetime")
+    public ApiResult<Map<String, Object>> testDateTime() {
+        Map<String, Object> result = new HashMap<>();
+        result.put("currentTime", LocalDateTime.now());
+        result.put("message", "LocalDateTime序列化测试");
+        return success(result);
+    }
+}

src/main/resources/application.yml

@@ -22,6 +22,10 @@ spring:
   jackson:
     time-zone: GMT+8
     date-format: yyyy-MM-dd HH:mm:ss
+    serialization:
+      write-dates-as-timestamps: false
+    deserialization:
+      fail-on-unknown-properties: false
 
   # 连接池配置
   datasource: