diff --git a/ruoyi-bussiness/src/main/java/com/ruoyi/cms/service/impl/JobCollectionServiceImpl.java b/ruoyi-bussiness/src/main/java/com/ruoyi/cms/service/impl/JobCollectionServiceImpl.java
index 45f501c..99b8237 100644
--- a/ruoyi-bussiness/src/main/java/com/ruoyi/cms/service/impl/JobCollectionServiceImpl.java
+++ b/ruoyi-bussiness/src/main/java/com/ruoyi/cms/service/impl/JobCollectionServiceImpl.java
@@ -267,7 +267,7 @@ public class JobCollectionServiceImpl extends ServiceImpl<JobCollectionMapper,Jo
             }
 
             // 5. 年龄估算（从生日计算）
-            int userAge = getUserAge(DateUtils.toDate(user.getBirthDate()));
+            int userAge = getUserAge(DateUtils.stringToDateWithYmd(user.getBirthDate(),DateUtils.YYYY_MM_DD));
             // 假设最佳年龄区间为 22-35，越接近越匹配
             if (userAge >= 22 && userAge <= 35) {
                 matchScore += 1;
@@ -293,7 +293,7 @@ public class JobCollectionServiceImpl extends ServiceImpl<JobCollectionMapper,Jo
         // ================== 计算雷达图数据（取平均值）==================
         RadarChart radarChart = new RadarChart();
 
-        double avgAgeScore = userScores.stream().mapToInt(u -> getAgeScore(DateUtils.toDate(u.getUser().getBirthDate()))).average().orElse(0);
+        double avgAgeScore = userScores.stream().mapToInt(u -> getAgeScore(DateUtils.stringToDateWithYmd(u.getUser().getBirthDate(),DateUtils.YYYY_MM_DD))).average().orElse(0);
         double avgExperienceScore = userScores.stream().mapToInt(u -> getExperienceScore(u.getUser().getExperience(), job.getExperience(), experienceRank)).average().orElse(0);
         double avgEducationScore = userScores.stream().mapToInt(u -> getEducationScore(u.getUser().getEducation(), job.getEducation(), educationRank)).average().orElse(0);
         double avgSkillScore = userScores.stream().mapToInt(u -> getSkillScore(u.getUser(), job)).average().orElse(0);
diff --git a/ruoyi-bussiness/src/main/java/com/ruoyi/cms/util/DateValidateUtil.java b/ruoyi-bussiness/src/main/java/com/ruoyi/cms/util/DateValidateUtil.java
index 6d9e03d..d9ca446 100644
--- a/ruoyi-bussiness/src/main/java/com/ruoyi/cms/util/DateValidateUtil.java
+++ b/ruoyi-bussiness/src/main/java/com/ruoyi/cms/util/DateValidateUtil.java
@@ -9,31 +9,21 @@ import java.time.format.DateTimeParseException;
  */
 public class DateValidateUtil {
 
-    // 私有构造器：禁止实例化工具类
-    private DateValidateUtil() {}
+    private static final DateTimeFormatter FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd");
+    private static final String ERROR_MSG = "生日格式错误！不为空时必须填写 yyyy-MM-dd 完整格式（如 1991-09-01）";
 
-    // 生日格式：yyyy-MM-dd（静态常量，统一维护）
-    private static final DateTimeFormatter BIRTH_DATE_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd");
-    private static final String BIRTH_DATE_ERROR_MSG = "生日格式错误！不为空时必须填写 yyyy-MM-dd 格式（如 2000-01-01）";
-
-    /**
-     * 静态方法：校验生日格式（可为空，非空时需符合 yyyy-MM-dd）
-     * @param birthDate 待校验的生日（LocalDate 类型）
-     * @return 校验通过返回 null；失败返回错误提示信息
-     */
-    public static String validateBirthDate(LocalDate birthDate) {
-        // 空值直接放行，返回 null 表示校验通过
-        if (birthDate == null) {
-            return null;
+    // 改为校验 String 类型
+    public static String validateBirthDate(String birthDateStr) {
+        if (birthDateStr == null || birthDateStr.trim().isEmpty()) {
+            return null; // 为空放行
         }
 
         try {
-            // 非空时校验格式：LocalDate 格式化需符合 yyyy-MM-dd
-            BIRTH_DATE_FORMATTER.format(birthDate);
-            return null; // 格式正确，返回 null 表示校验通过
+            // 严格校验格式：必须是 yyyy-MM-dd，且日期合法（如 1991-02-30 会失败）
+            LocalDate.parse(birthDateStr.trim(), FORMATTER);
+            return null; // 校验通过
         } catch (DateTimeParseException e) {
-            // 格式错误，返回具体提示信息
-            return BIRTH_DATE_ERROR_MSG;
+            return ERROR_MSG; // 格式错误返回提示
         }
     }
 }
\ No newline at end of file
diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/core/domain/entity/AppUser.java b/ruoyi-common/src/main/java/com/ruoyi/common/core/domain/entity/AppUser.java
index f54d5d8..8e919bb 100644
--- a/ruoyi-common/src/main/java/com/ruoyi/common/core/domain/entity/AppUser.java
+++ b/ruoyi-common/src/main/java/com/ruoyi/common/core/domain/entity/AppUser.java
@@ -49,7 +49,7 @@ public class AppUser extends BaseEntity
     @JsonFormat(pattern = "yyyy-MM-dd")
     @Excel(name = "生日", width = 30, dateFormat = "yyyy-MM-dd")
     @ApiModelProperty("生日")
-    private LocalDate birthDate;
+    private String birthDate;
 
     @Excel(name = "学历 对应字典education")
     @ApiModelProperty("学历 对应字典education")
diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/DateUtils.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/DateUtils.java
index 108cd1b..8385bc7 100644
--- a/ruoyi-common/src/main/java/com/ruoyi/common/utils/DateUtils.java
+++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/DateUtils.java
@@ -203,4 +203,20 @@ public class DateUtils extends org.apache.commons.lang3.time.DateUtils
                 .atZone(ZONE_ID)
                 .toLocalDateTime();
     }
+
+
+    /**
+     * @param dateStr 日期字符串（需符合yyyy-MM-dd格式）
+     * @return 转换后的Date对象，转换失败则返回null
+     */
+    public static Date stringToDateWithYmd(String dateStr,String format) {
+        if (dateStr == null || dateStr.trim().isEmpty()) {
+            return null;
+        }
+        try {
+            return new SimpleDateFormat(format).parse(dateStr);
+        } catch (ParseException e) {
+            return null;
+        }
+    }
 }