Sql根据身份证计算年龄和时间范围的条件查询

开发工具与关键技术： Java
作者：肖广斌
撰写时间：2021年5月24日

在大部分的地方我们都会用到模糊查询的功能，模糊查询的条件也是各种各样的，其中就有年龄段的筛选和时间段的筛选，那下面就来看一下怎么使用这两个条件进行模糊查询。

根据身份证计算年龄关键sql语句:
SELECT (YEAR(NOW())- SUBSTRING(表的身份证字段,7,4)) age FROM 表名;
就是计算当前年份减去从身份证字段里截取到的年份，因为从第七位开始就是年份，截取四位得到年份，然后计算得到年龄，这是18位数身份证的，15位的也大同小异。
1、首先得在mapper层写条件查询的接口方法
写一个传入多个参数作为查询条件最后返回list的方法

//多条件分页查询学员信息
List<Students> selStudents(@Param("nameIdPhone")String nameIdPhone,@Param("departmentID")Integer departmentID,@Param("namePointID")Integer namePointID,@Param("recruitStudentID")Integer recruitStudentID,@Param("driveTypeID")Integer driveTypeID,@Param("shiftClassID")Integer shiftClassID,@Param("sex")Boolean sex,@Param("startTime")String startTime,@Param("endTime")String endTime,@Param("ageID1")Integer ageID1,@Param("ageID2")Integer ageID2);

2、然后就是在xml中写sql语句
连表查询+条件判断。
关键sql语句：
1、表名.字段 between #{开始时间} and #{结束时间}
2、(YEAR(NOW())- SUBSTRING(身份证字段,7,4)) between #{年龄1} and #{年龄2}
between 在xxx和xxx范围之间

<!-- 多条件分页查询学员信息 -->
<select id="selStudents" resultType="com.jx.pojo.Students">select students .*,status.StatusName,registrationpoint.RPName,drivingtype.drivingTypeName,shiftclass.SCName,recruitstudent.RecruitName,department.DepartmentName,studentgroup.SGName from studentsleft join status on status.StatusID = students.StatusIDleft join registrationpoint on registrationpoint.RegistrationPointID = students.RegistrationPointIDleft join drivingtype on drivingtype.drivingTypeID = students.drivingTypeIDleft join shiftclass on shiftclass.ShiftClassID = students.ShiftClassIDleft join recruitstudent on recruitstudent.RecruitStudentID = students.RecruitStudentIDleft join department on department.DepartmentID = students.DepartmentIDleft join studentgroup on studentgroup.StudentGroupID = students.StudentGroupID<where><if test="nameIdPhone != null and nameIdPhone != ''" >and (students.name like concat('%',#{nameIdPhone},'%')or students.idNumber like concat('%',#{nameIdPhone},'%')or students.phoneOne like concat('%',#{nameIdPhone},'%')or students.phoneTwo like concat('%',#{nameIdPhone},'%'))</if><if test="departmentID != 0 and departmentID != ''">and department.PDepartmentID = #{departmentID}</if><if test="namePointID != 0 and namePointID != ''">and students.RegistrationPointID = #{namePointID}</if><if test="recruitStudentID != 0 and recruitStudentID != ''">and students.RecruitStudentID = #{recruitStudentID}</if><if test="driveTypeID != 0 and driveTypeID != ''">and students.drivingTypeID = #{driveTypeID}</if><if test="shiftClassID != 0 and shiftClassID != ''">and students.ShiftClassID = #{shiftClassID}</if><if test="sex != null">and students.sex = #{sex}</if><if test="startTime!=null">and students.registrationTime between #{startTime} and  #{endTime}</if><if test="endTime!=null">and students.registrationTime between #{startTime} and  #{endTime}</if><if test="ageID1 != 0 and ageID1 != ''" >and (YEAR(NOW())- SUBSTRING(idNumber,7,4)) between #{ageID1} and  #{ageID2}</if><if test="ageID2 != 0 and ageID2 != ''">and (YEAR(NOW())- SUBSTRING(idNumber,7,4)) between #{ageID1} and  #{ageID2}</if></where>
</select>

3、接着在jsp页面写条件查询的方法
获取页面参数，加入条件判断之后传到控制器

//条件查询
function CheckSignUp(){var nameIdPhone = $("#nameIdPhone").val();var namePointID = $("#NamePointID").val();var departmentID = $("#DepartmentID").val();var recruitStudentID = $("#RecruitStudentID").val();var test1 = $("#test1").val();var ageID1 = $("#AgeID1").val();var ageID2 = $("#AgeID2").val();var driveTypeID = $("#DriveTypeID").val();var shiftClassID = $("#ShiftClassID").val();var sexID = $("#SexID").val();var startTime = test1.substring(0, 10);var endTime = test1.substring(13);if (nameIdPhone == undefined || nameIdPhone == null || nameIdPhone == "") {nameIdPhone = "";}if (departmentID == "" || departmentID == undefined || departmentID == null) {departmentID = 0;}if (namePointID == "" || namePointID == undefined || namePointID == null) {namePointID = 0;}if (recruitStudentID == undefined || recruitStudentID == "" || recruitStudentID == null) {recruitStudentID = 0;}if (driveTypeID == undefined || driveTypeID == "" || driveTypeID == null) {driveTypeID = 0;}if (shiftClassID == undefined || shiftClassID == "" || shiftClassID == null) {shiftClassID = 0;}if(startTime==""||startTime==null||endTime==""||endTime==null){startTime="undefined";endTime="undefined"}else{startTime = new Date(startTime).getTime();endTime = new Date(endTime).getTime();}if (ageID1 == undefined || ageID1 == "" || ageID1 == null) {ageID1 = 0;}if (ageID2 == undefined || ageID2 == "" || ageID2 == null) {ageID2 = 0;}//表格数据重载//方法级渲染的重载tabSignUp.reload({url: "${ctx}/Students/selStudents",where: {nameIdPhone:nameIdPhone,departmentID:departmentID,namePointID:namePointID,recruitStudentID:recruitStudentID,driveTypeID:driveTypeID,shiftClassID:shiftClassID,startTime:startTime,endTime:endTime,sexID:sexID,ageID1:ageID1,ageID2:ageID2},page: {curr: 1 //重新从第 1 页开始}});
}

4、最后在控制器写查询的逻辑
接收页面传递过来的参数，传入查询方法进行数据查询，最后返回data

//条件分页查询学员信息
@ResponseBody
@RequestMapping(value = "/selStudents", produces = "application/json; charset=utf-8")
private Layui selStudents(HttpServletRequest request,String nameIdPhone,Integer departmentID,Integer namePointID,Integer recruitStudentID,Integer driveTypeID,Integer shiftClassID,String startTime,String endTime,Boolean sexID,Integer ageID1,Integer ageID2) {//获取参数String pageNum = request.getParameter("curr");String pageSize = request.getParameter("nums");if("".equals(startTime)||startTime==null||"undefined".equals(startTime)) {startTime=null;}else {startTime = new SimpleDateFormat("yyyy-MM-dd").format(Long.parseLong(startTime));}if("".equals(endTime)||endTime==null||"undefined".equals(endTime)) {endTime=null;}else {endTime = new SimpleDateFormat("yyyy-MM-dd").format(Long.parseLong(endTime));}List<Students> list = new ArrayList<>();//查询数据list = StudentsMapper.selStudents(nameIdPhone,departmentID,namePointID,recruitStudentID,driveTypeID,shiftClassID,sexID,startTime,endTime,ageID1,ageID2);//循环学员表信息for (Students student : list) {//声明变量和空字符串String str = "";//拼接车型+班制str += student.getDrivingtypename()+"-"+student.getScname();student.setCarclassname(str);//赋值}PageService<Students> stu= new PageService<Students>();PageBean<Students> pageBean = stu.findByPage(list, Integer.parseInt(pageNum),  Integer.parseInt(pageSize));return Layui.data(pageBean);
}

演示效果如下：
输入查询条件前

输入查询条件后

还有就是年龄的查询条件不能从大到小，开始年龄比结束年龄大、不能两个年龄相同、不能只写开始年龄不写结束年龄，或者只写结束年龄不写开始年龄，这样都是无法查询数据的。如下图：

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