暂存提交

common-web/src/main/java/com/baiyue/common/web/LongIdJacksonConfiguration.java

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+package com.baiyue.common.web;
+
+import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
+import org.springframework.boot.autoconfigure.AutoConfiguration;
+import org.springframework.boot.autoconfigure.jackson.Jackson2ObjectMapperBuilderCustomizer;
+import org.springframework.context.annotation.Bean;
+
+/**
+ * 统一将 Java 长整型序列化为 JSON 字符串，避免浏览器对雪花 ID 产生精度截断。
+ *
+ * <p>请求反序列化仍兼容 JSON 字符串和安全范围内的 JSON 数字；数据库与领域模型继续使用
+ * {@code BIGINT}/{@code Long}，本配置只改变 HTTP JSON 表达。</p>
+ */
+@AutoConfiguration
+public class LongIdJacksonConfiguration {
+
+    @Bean
+    Jackson2ObjectMapperBuilderCustomizer longAsStringJacksonCustomizer() {
+        return builder -> builder
+                .serializerByType(Long.class, ToStringSerializer.instance)
+                .serializerByType(Long.TYPE, ToStringSerializer.instance);
+    }
+}

common-web/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports

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+com.baiyue.common.web.LongIdJacksonConfiguration