fix(项目管理): 修复发送邮件通知标题语言环境获取问题

backend/services/system-setting/src/main/java/io/metersphere/system/notice/sender/AfterReturningNoticeSendService.java

@@ -10,6 +10,7 @@ import io.metersphere.system.service.NoticeSendService;
 import io.metersphere.system.service.SystemParameterService;
 import jakarta.annotation.Resource;
 import org.apache.commons.lang3.StringUtils;
+import org.springframework.context.i18n.LocaleContextHolder;
 import org.springframework.scheduling.annotation.Async;
 import org.springframework.stereotype.Component;
 
@@ -24,7 +25,7 @@ public class AfterReturningNoticeSendService {
 
     @Async
     public void sendNotice(String taskType, String event, List<Map> resources, SessionUser sessionUser, String currentProjectId) {
-
+        setLanguage(sessionUser.getLanguage());
         // 有批量操作发送多次
         BaseSystemConfigDTO baseSystemConfigDTO = systemParameterService.getBaseInfo();
         for (Map resource : resources) {
@@ -73,6 +74,16 @@ public class AfterReturningNoticeSendService {
         return defaultTemplateTitleMap.get(taskType + "_" + event);
     }
 
+    private static void setLanguage(String language) {
+        Locale locale = Locale.SIMPLIFIED_CHINESE;
+        if (StringUtils.containsIgnoreCase("US",language)) {
+            locale = Locale.US;
+        } else if (StringUtils.containsIgnoreCase("TW",language)){
+            locale = Locale.TAIWAN;
+        }
+        LocaleContextHolder.setLocale(locale);
+    }
+
 
     /**
      * 有些默认的值，避免通知里出现 ${key}