5/19 10:57

mybatis519/src/main/java/cn/czyx007/bean/Brand.java

@@ -0,0 +1,35 @@
+package cn.czyx007.bean;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.io.Serializable;
+import java.util.Date;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2023/5/17 - 14:15
+ */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class Brand implements Serializable {
+    private static final long serialVersionUID = 372981646177803083L;
+
+    private Integer id;
+
+    private String brandName;
+
+    private String companyName;
+
+    private Integer ordered;
+
+    private String description;
+
+    //本身返回：1 和 0
+    //想返回：启用 和 禁用
+    private Integer status;
+
+    private Date createDate;
+}

mybatis519/src/main/java/cn/czyx007/bean/Emp.java

@@ -0,0 +1,25 @@
+package cn.czyx007.bean;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.io.Serializable;
+import java.util.Date;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2023/5/16 - 11:02
+ */
+@NoArgsConstructor
+@AllArgsConstructor
+@Data
+public class Emp implements Serializable {
+    private static final long serialVersionUID = -89822489848437850L;
+    private Integer eid;
+    private String ename;
+    private String esex;
+    private Date estartime;
+    private Float epay;
+    private Integer did;
+}

mybatis519/src/main/java/cn/czyx007/bean/Husband.java

@@ -0,0 +1,19 @@
+package cn.czyx007.bean;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2023/5/17 - 15:57
+ */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class Husband {
+    private Integer husId;
+    private Integer age;
+    private String gender;
+    private String husbandName;
+}

mybatis519/src/main/java/cn/czyx007/bean/Wife.java

@@ -0,0 +1,22 @@
+package cn.czyx007.bean;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2023/5/17 - 15:57
+ */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class Wife {
+    private Integer wifeId;
+    private Integer wifeAge;
+    private String sex;
+    private String wifeName;
+    private Integer hId; //老公的id外建
+
+    private Husband husband;
+}

mybatis519/src/main/java/cn/czyx007/mapper/BrandMapper.java

@@ -0,0 +1,16 @@
+package cn.czyx007.mapper;
+
+import cn.czyx007.bean.Brand;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2023/5/17 - 14:16
+ */
+public interface BrandMapper {
+    //查询所有品牌
+    @Select("select * from person_info.tb_brand")
+    List<Brand> getBrandAll();
+}

mybatis519/src/main/java/cn/czyx007/mapper/EmpMapper.java

@@ -0,0 +1,41 @@
+package cn.czyx007.mapper;
+
+import cn.czyx007.bean.Emp;
+import org.apache.ibatis.annotations.*;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2023/5/16 - 11:17
+ */
+public interface EmpMapper {
+    //查询所有数据
+    List<Emp> getAll();
+
+    //根据id查询
+    @Select("select * from person_info.emp where eid = #{eid}")
+    Emp getEmpById(Integer eid);
+
+    //插入一条数据
+    @Insert("insert into person_info.emp(ename,esex,estartime) values (#{ename},#{esex},#{estartime})")
+    @Options(useGeneratedKeys = true, keyProperty = "eid")
+    int insertEmp(Emp emp);
+
+    //根据eid删除一条数据
+    @Delete("delete from person_info.emp where eid = #{eid}")
+    int deleteEmp(Integer eid);
+
+    //排序查询
+    @Select("select * from person_info.emp order by estartime ${o}")
+    List<Emp> selectEmpByOrder(String o);
+
+    //根据名字模糊，工资范围查询
+    @Select("select * from person_info.emp where ename like concat('%',#{ename},'%') and epay >= #{startPay} and epay <= #{endPay}")
+    List<Emp> selectEmpBySome(@Param("ename") String ename, @Param("startPay") double startPay, @Param("endPay") double endPay);
+
+    //根据id修改
+    @Update("update person_info.emp set ename = #{ename}, esex = #{esex}, epay = #{epay} where eid = #{eid}")
+    int updateEmpById(Map<String, Object> map);
+}

mybatis519/src/main/java/cn/czyx007/mapper/HusbandMapper.java

@@ -0,0 +1,12 @@
+package cn.czyx007.mapper;
+
+import cn.czyx007.bean.Husband;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2023/5/17 - 15:58
+ */
+public interface HusbandMapper {
+
+    Husband getHusbandById(Integer hid);
+}

mybatis519/src/main/java/cn/czyx007/mapper/WifeMapper.java

@@ -0,0 +1,30 @@
+package cn.czyx007.mapper;
+
+import cn.czyx007.bean.Wife;
+import org.apache.ibatis.annotations.*;
+import org.apache.ibatis.mapping.FetchType;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2023/5/17 - 15:58
+ */
+public interface WifeMapper {
+    //查询老公和老婆的信息
+    @Select("select * from person_info.husband h inner join person_info.wife w on h.hus_id = w.hid")
+    List<Map<String, Object>> getHusAndWife();
+
+//    List<Wife> getHusbandWifeInfo();
+
+    @Select("select * from person_info.wife")
+    @Results(id = "wifeLazyMap", value = {
+            @Result(id = true, column = "wife_id", property = "wifeId"),
+            @Result(column = "wife_name", property = "wifeName"),
+            @Result(column = "hid", property = "hId"),
+            @Result(column = "hid", property = "husband",
+                    one = @One(select = "cn.czyx007.mapper.HusbandMapper.getHusbandById", fetchType = FetchType.LAZY))
+    })
+    List<Wife> getWifeAll();
+}

mybatis519/src/main/resources/cn/czyx007/mapper/BrandMapper.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+
+<mapper namespace="cn.czyx007.mapper.BrandMapper">
+
+</mapper>

mybatis519/src/main/resources/cn/czyx007/mapper/EmpMapper.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+
+<mapper namespace="cn.czyx007.mapper.EmpMapper">
+<!--    <insert id="insertEmp" useGeneratedKeys="true" keyProperty="eid">-->
+<!--        insert into person_info.emp(ename,esex,estartime) values (#{ename}, #{esex}, #{estartime})-->
+<!--    </insert>-->
+    <select id="getAll" resultType="cn.czyx007.bean.Emp">
+        select * from person_info.emp
+    </select>
+</mapper>

mybatis519/src/main/resources/cn/czyx007/mapper/HusbandMapper.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+
+<mapper namespace="cn.czyx007.mapper.HusbandMapper">
+    <resultMap id="hudMap" type="cn.czyx007.bean.Husband">
+        <id property="husId" column="hud_id"/>
+        <result property="husbandName" column="hudband_name"/>
+    </resultMap>
+    <select id="getHusbandById" resultMap="hudMap">
+        select * from person_info.husband where hus_id = #{hid}
+    </select>
+</mapper>

mybatis519/src/main/resources/cn/czyx007/mapper/WifeMapper.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+
+<mapper namespace="cn.czyx007.mapper.WifeMapper">
+    <resultMap id="wifeMap" type="cn.czyx007.bean.Wife">
+        <id property="wifeId" column="wife_id"/>
+        <result property="wifeName" column="wife_name"/>
+        <!--映射老公信息 association：用于一对一的关系映射-->
+        <association property="husband" javaType="cn.czyx007.bean.Husband">
+            <id property="husId" column="hus_id"/>
+            <result property="husbandName" column="husband_name"/>
+        </association>
+    </resultMap>
+    <select id="getHusbandWifeInfo" resultMap="wifeMap">
+        SELECT * FROM person_info.husband h INNER JOIN person_info.wife w on h.hus_id=w.hid
+    </select>
+
+<!--    <resultMap id="wifeLazyMap" type="cn.czyx007.bean.Wife">-->
+<!--        <id property="wifeId" column="wife_id"/>-->
+<!--        <result property="wifeName" column="wife_name"/>-->
+<!--        <result column="hid" property="hId"/>-->
+<!--        &lt;!&ndash;映射老公信息 association：用于一.对一的关系映射&ndash;&gt;-->
+<!--        <association property="husband" javaType="cn.czyx007.bean.Husband"-->
+<!--            select="cn.czyx007.mapper.HusbandMapper.getHusbandById" column="hid" fetchType="lazy">-->
+<!--            <id property="husId" column="hus_id"/>-->
+<!--            <result property="husbandName" column="husband_name"/>-->
+<!--        </association>-->
+<!--    </resultMap>-->
+<!--    <select id="getWifeAll" resultMap="wifeLazyMap">-->
+<!--        select * from person_info.wife-->
+<!--    </select>-->
+</mapper>

mybatis519/src/test/java/TestEmpDemo.java

@@ -0,0 +1,27 @@
+import cn.czyx007.bean.Emp;
+import cn.czyx007.mapper.EmpMapper;
+import cn.czyx007.utils.SqlSessionUtil;
+import lombok.extern.log4j.Log4j;
+import org.junit.Test;
+
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2023/5/17 - 9:09
+ */
+@Log4j
+public class TestEmpDemo {
+    static EmpMapper empMapper = SqlSessionUtil.getSqlSession().getMapper(EmpMapper.class);
+
+    @Test
+    public void testInsert(){
+        Emp emp = new Emp();
+        emp.setEname("123");
+        emp.setEsex("123");
+        emp.setEstartime(new Date());
+        System.out.println(empMapper.insertEmp(emp));
+    }
+}