计算年龄工具类

ruoyi-szxc/src/main/java/com/ruoyi/szxc/domain/SzxcJmInfo.java

@@ -52,7 +52,7 @@ public class SzxcJmInfo extends BaseEntity
 
     /** 年龄 */
     @Excel(name = "年龄")
-    private Long age;
+    private Integer age;
 
     /** 性别（0男 1女 2未知） */
     @Excel(name = "性别", readConverterExp = "0=男,1=女,2=未知")
@@ -206,12 +206,12 @@ public class SzxcJmInfo extends BaseEntity
     {
         return bornDate;
     }
-    public void setAge(Long age)
+    public void setAge(Integer age)
     {
         this.age = age;
     }
 
-    public Long getAge()
+    public Integer getAge()
     {
         return age;
     }

ruoyi-szxc/src/main/java/com/ruoyi/szxc/service/impl/SzxcJmInfoServiceImpl.java

@@ -5,9 +5,11 @@ import com.ruoyi.common.utils.DateUtils;
 import com.ruoyi.szxc.domain.SzxcJmInfo;
 import com.ruoyi.szxc.mapper.SzxcJmInfoMapper;
 import com.ruoyi.szxc.service.ISzxcJmInfoService;
-import org.springframework.beans.factory.annotation.Autowired;
+import com.ruoyi.szxc.util.GetAgeByBirthdayUtil;
 import org.springframework.stereotype.Service;
 
+import javax.annotation.Resource;
+import java.util.Date;
 import java.util.List;
 
 /**
@@ -19,7 +21,7 @@ import java.util.List;
 @Service
 public class SzxcJmInfoServiceImpl implements ISzxcJmInfoService 
 {
-    @Autowired
+    @Resource
     private SzxcJmInfoMapper szxcJmInfoMapper;
 
     /**
@@ -31,7 +33,11 @@ public class SzxcJmInfoServiceImpl implements ISzxcJmInfoService
     @Override
     public SzxcJmInfo selectSzxcJmInfoById(Long id)
     {
-        return szxcJmInfoMapper.selectSzxcJmInfoById(id);
+        SzxcJmInfo jmInfo = szxcJmInfoMapper.selectSzxcJmInfoById(id);
+        Date bornDate = jmInfo.getBornDate();
+        int ageByBirth = GetAgeByBirthdayUtil.getAgeByBirth(bornDate);
+        jmInfo.setAge(ageByBirth);
+        return jmInfo;
     }
 
     /**
@@ -44,7 +50,13 @@ public class SzxcJmInfoServiceImpl implements ISzxcJmInfoService
     @DataScope(deptAlias = "j")
     public List<SzxcJmInfo> selectSzxcJmInfoList(SzxcJmInfo szxcJmInfo)
     {
-        return szxcJmInfoMapper.selectSzxcJmInfoList(szxcJmInfo);
+        List<SzxcJmInfo> szxcJmInfos = szxcJmInfoMapper.selectSzxcJmInfoList(szxcJmInfo);
+       szxcJmInfos.forEach(info->{
+           Date bornDate = info.getBornDate();
+           int ageByBirth = GetAgeByBirthdayUtil.getAgeByBirth(bornDate);
+           info.setAge(ageByBirth);
+       });
+        return szxcJmInfos;
     }
 
     /**

ruoyi-szxc/src/main/java/com/ruoyi/szxc/util/GetAgeByBirthdayUtil.java

@@ -0,0 +1,45 @@
+package com.ruoyi.szxc.util;
+
+import java.util.Calendar;
+import java.util.Date;
+
+public  class GetAgeByBirthdayUtil {
+    /**
+     *
+     * 根据出生年月日计算年龄
+     * @param birthday
+     * @return: int
+     */
+    public static int getAgeByBirth(Date birthday){
+
+        //获取当前时间
+        Calendar cal = Calendar.getInstance();
+
+        //获取出生日期的Calendar对象
+        Calendar bir = Calendar.getInstance();
+        bir.setTime(birthday);
+        //如果出生日期大于当前日期，则返回0
+        if(cal.before(birthday)){
+            return 0;
+        }
+        //取出当前年月日
+        int nowYear = cal.get(Calendar.YEAR);
+        int nowMonth = cal.get(Calendar.MONTH);
+        int nowDay = cal.get(Calendar.DAY_OF_MONTH);
+
+        //取出出生日期的年月日
+        int birthYear = bir.get(Calendar.YEAR);
+        int birthMonth = bir.get(Calendar.MONTH);
+        int birthDay = bir.get(Calendar.DAY_OF_MONTH);
+
+        //计算年份
+        int age = nowYear - birthYear;
+
+        //计算月份和日，看看是否大于当前月日，如果小于则减去一岁
+        if(nowMonth < birthMonth || (nowMonth == birthMonth && nowDay < birthDay)){
+            age--;
+        }
+        return age;
+    }
+
+}