diff --git a/src/main/java/com/example/caseData/CaseDataApplication.java b/src/main/java/com/example/caseData/CaseDataApplication.java
index 9d55f2d..84111eb 100644
--- a/src/main/java/com/example/caseData/CaseDataApplication.java
+++ b/src/main/java/com/example/caseData/CaseDataApplication.java
@@ -4,11 +4,16 @@ import org.mybatis.spring.annotation.MapperScan;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
+import java.util.TimeZone;
+
 @SpringBootApplication
 @MapperScan("com.example.caseData.dao")
 public class CaseDataApplication {
 
 	public static void main(String[] args) {
+		// 设置 JVM 全局默认时区（建议与数据库一致，比如 "Asia/Shanghai"）
+		TimeZone.setDefault(TimeZone.getTimeZone("Asia/Shanghai"));
+
 		SpringApplication.run(CaseDataApplication.class, args);
 	}
 
diff --git a/src/main/java/com/example/caseData/service/CaseExchangeService.java b/src/main/java/com/example/caseData/service/CaseExchangeService.java
index e71a8be..eaaf8fa 100644
--- a/src/main/java/com/example/caseData/service/CaseExchangeService.java
+++ b/src/main/java/com/example/caseData/service/CaseExchangeService.java
@@ -17,6 +17,7 @@ import org.springframework.transaction.annotation.Transactional;
 import org.springframework.transaction.interceptor.TransactionAspectSupport;
 
 import java.time.LocalDateTime;
+import java.time.ZoneId;
 import java.util.Date;
 import java.util.List;
 import java.util.Objects;
@@ -141,7 +142,7 @@ public class CaseExchangeService {
         caseExchangeData.setUserId(Long.valueOf(userId));
         caseExchangeData.setExchangeTitle(r.getExchangeTitle());
         caseExchangeData.setExchangeStatus(1);
-        caseExchangeData.setPushDate(LocalDateTime.now());
+        caseExchangeData.setPushDate(LocalDateTime.now(ZoneId.of("Asia/Shanghai")));
         caseExchangeData.setExchangeContent(r.getExchangeContent());
         caseExchangeData.setExchangeSummary(r.getExchangeSummary());
         caseExchangeData.setExchangeContentVideo(exchangeContentVideo);