fix: 求职人员导出时设置年龄

src/main/java/com/hz/employmentsite/controller/jobUserManager/JobUserController.java

@@ -148,7 +148,7 @@ public class JobUserController {
                 row.add(item.getNation());
                 row.add(item.getUserMobile());
                 row.add(item.siteName);
-                row.add(dateUtils.calculateAge(dateUtils.dateToStr(item.getBirthDay())));
+                row.add(dateUtils.getAgeForIdCard(item.getIdentityNumber()));
                 row.add(item.cultureName);
                 row.add(item.getAddress());
                 row.add(item.jobStatusName);

src/main/java/com/hz/employmentsite/util/DateUtils.java

@@ -424,4 +424,40 @@ public class DateUtils {
         // 返回年份差异，即年龄
         return period.getYears();
     }
+
+    /**
+     * 根据身份证的号码算出当前身份证持有者的年龄
+     *
+     * @param idCard 身份证号码
+     * @return 年龄
+     */
+    public int getAgeForIdCard(String idCard) {
+        try {
+            int age = 0;
+            if (idCard.isEmpty() || idCard.isBlank()) {
+                return age;
+            }
+
+            String birth = "";
+            if (idCard.length() == 18) {
+                birth = idCard.substring(6, 14);
+            } else if (idCard.length() == 15) {
+                birth = "19" + idCard.substring(6, 12);
+            }
+
+            int year = Integer.valueOf(birth.substring(0, 4));
+            int month = Integer.valueOf(birth.substring(4, 6));
+            int day = Integer.valueOf(birth.substring(6));
+            Calendar cal = Calendar.getInstance();
+            age = cal.get(Calendar.YEAR) - year;
+            //周岁计算
+            if (cal.get(Calendar.MONTH) < (month - 1) || (cal.get(Calendar.MONTH) == (month - 1) && cal.get(Calendar.DATE) < day)) {
+                age--;
+            }
+            return age;
+        } catch (Exception e) {
+            e.getMessage();
+        }
+        return 0;
+    }
 }