• 【1023练习】MyBatis练习二


    package cn.kgc.pojo;
    
    import java.math.BigDecimal;
    import java.util.Date;
    
    /**
     * Created with IntelliJ IDEA.
     * User: L
     * Date: 2019/10/23
     * Time: 16:33
     * Description: No Description
     */
    public class Bill {
        private int id;   //id
        private String billCode; //账单编码
        private String productName; //商品名称
        private String productDesc; //商品描述
        private String productUnit; //商品单位
        private String productCount; //商品数量
        private String totalPrice; //总金额
        private int isPayment; //是否支付
        private int providerId; //供应商ID
        private int createdBy; //创建者
        private Date creationDate; //创建时间
        private int modifyBy; //更新者
        private Date modifyDate;//更新时间
        private Provider provider;//供应商
    
        public int getId() {
            return id;
        }
    
        public void setId(int id) {
            this.id = id;
        }
    
        public String getBillCode() {
            return billCode;
        }
    
        public void setBillCode(String billCode) {
            this.billCode = billCode;
        }
    
        public String getProductName() {
            return productName;
        }
    
        public void setProductName(String productName) {
            this.productName = productName;
        }
    
        public String getProductDesc() {
            return productDesc;
        }
    
        public void setProductDesc(String productDesc) {
            this.productDesc = productDesc;
        }
    
        public String getProductUnit() {
            return productUnit;
        }
    
        public void setProductUnit(String productUnit) {
            this.productUnit = productUnit;
        }
    
        public String getProductCount() {
            return productCount;
        }
    
        public void setProductCount(String productCount) {
            this.productCount = productCount;
        }
    
        public String getTotalPrice() {
            return totalPrice;
        }
    
        public void setTotalPrice(String totalPrice) {
            this.totalPrice = totalPrice;
        }
    
        public int getIsPayment() {
            return isPayment;
        }
    
        public void setIsPayment(int isPayment) {
            this.isPayment = isPayment;
        }
    
        public int getProviderId() {
            return providerId;
        }
    
        public void setProviderId(int providerId) {
            this.providerId = providerId;
        }
    
        public int getCreatedBy() {
            return createdBy;
        }
    
        public void setCreatedBy(int createdBy) {
            this.createdBy = createdBy;
        }
    
        public Date getCreationDate() {
            return creationDate;
        }
    
        public void setCreationDate(Date creationDate) {
            this.creationDate = creationDate;
        }
    
        public int getModifyBy() {
            return modifyBy;
        }
    
        public void setModifyBy(int modifyBy) {
            this.modifyBy = modifyBy;
        }
    
        public Date getModifyDate() {
            return modifyDate;
        }
    
        public void setModifyDate(Date modifyDate) {
            this.modifyDate = modifyDate;
        }
    
        public Provider getProvider() {
            return provider;
        }
    
        public void setProvider(Provider provider) {
            this.provider = provider;
        }
    }
    package cn.kgc.pojo;
    
    import java.util.Date;
    import java.util.List;
    
    /**
     * Created with IntelliJ IDEA.
     * User: L
     * Date: 2019/10/21
     * Time: 15:38
     * Description: No Description
     */
    public class Provider {
        private Integer id; //id
        private String proCode;     //供应商编码
        private String proName; //供应商名称
        private String proDesc; //描述广告
        private String proContact;  //联系人
        private String proPhone;   //电话
        private String proAddress; //地址
        private String proFax;   //传真
        private Integer createdBy;   //创建者
        private String creationDate;  //创建时间
        private Integer modifyBy;     //更新者
        private Date modifyDate;   //更新时间
        private List<Bill> billList;
    
        public Integer getId() {
            return id;
        }
    
        public void setId(Integer id) {
            this.id = id;
        }
    
        public String getProCode() {
            return proCode;
        }
    
        public void setProCode(String proCode) {
            this.proCode = proCode;
        }
    
        public String getProName() {
            return proName;
        }
    
        public void setProName(String proName) {
            this.proName = proName;
        }
    
        public String getProDesc() {
            return proDesc;
        }
    
        public void setProDesc(String proDesc) {
            this.proDesc = proDesc;
        }
    
        public String getProContact() {
            return proContact;
        }
    
        public void setProContact(String proContact) {
            this.proContact = proContact;
        }
    
        public String getProPhone() {
            return proPhone;
        }
    
        public void setProPhone(String proPhone) {
            this.proPhone = proPhone;
        }
    
        public String getProAddress() {
            return proAddress;
        }
    
        public void setProAddress(String proAddress) {
            this.proAddress = proAddress;
        }
    
        public String getProFax() {
            return proFax;
        }
    
        public void setProFax(String proFax) {
            this.proFax = proFax;
        }
    
        public Integer getCreatedBy() {
            return createdBy;
        }
    
        public void setCreatedBy(Integer createdBy) {
            this.createdBy = createdBy;
        }
    
        public String getCreationDate() {
            return creationDate;
        }
    
        public void setCreationDate(String creationDate) {
            this.creationDate = creationDate;
        }
    
        public Integer getModifyBy() {
            return modifyBy;
        }
    
        public void setModifyBy(Integer modifyBy) {
            this.modifyBy = modifyBy;
        }
    
        public Date getModifyDate() {
            return modifyDate;
        }
    
        public void setModifyDate(Date modifyDate) {
            this.modifyDate = modifyDate;
        }
    
        public List<Bill> getBillList() {
            return billList;
        }
    
        public void setBillList(List<Bill> billList) {
            this.billList = billList;
        }
    }
    <?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.smbms.dao.user.BillMapper">
    
        <resultMap id="billList" type="Bill">
            <result property="billCode" column="billCode"/>
            <result property="productName" column="productName"/>
            <result property="totalPrice" column="totalPrice"/>
            <result property="isPayment" column="isPayment"/>
            <result property="creationDate" column="creationDate"/>
            <association property="provider" javaType="Provider">
                <result property="proName" column="proName"/>
            </association>
        </resultMap>
    
        <!--    1.按照商品名称模糊查询  订单信息-->
        <select id="getBillByName" parameterType="string" resultMap="billList">
            select billCode,productName,totalPrice,isPayment,p.creationDate as creationDate,proName
                from smbms_bill b,smbms_provider p where productName like concat('%',#{name},'%')
                and providerId = p.id
        </select>
        <!--    1.按照 商品名称(模糊查询), 供应商id, 是否付款 查询  订单信息-->
        <select id="getBill" parameterType="Bill" resultMap="billList">
            select billCode,productName,totalPrice,isPayment,p.creationDate as creationDate,proName
                from smbms_bill b,smbms_provider p where productName like concat('%',#{productName},'%')
                and  providerId = #{providerId} and isPayment=#{isPayment} and providerId = p.id
        </select>
    
        <!--    2.实现供应商表的增加-->
        <insert id="addBill" parameterType="Bill">
            insert into smbms_bill(productName,productDesc,productUnit)
            values(#{productName},#{productDesc},#{productUnit});
        </insert>
        <!--    3.根据id修改其信息-->
        <update id="updateBill" parameterType="Bill">
            update smbms_bill set productName=#{productName} where id = #{id}
        </update>
        <!--    4.根据id删除其信息,直接用@Delete写了,详情看BillMapper.java-->
    
        <!--    5.根据id查询供应商及其所有的订单列表-->
        <resultMap id="providerList" type="Provider">
            <id property="id" column="id"/>
            <result property="proCode" column="proCode"/>
            <result property="proName" column="proName"/>
            <result property="proContact" column="proContact"/>
            <result property="proPhone" column="proPhone"/>
            <collection property="billList" ofType="Bill">
                <result property="billCode" column="billCode"/>
                <result property="productName" column="productName"/>
                <result property="totalPrice" column="totalPrice"/>
                <result property="isPayment" column="isPayment"/>
            </collection>
        </resultMap>
    
        <select id="getProvideById" parameterType="int" resultMap="providerList">
            select p.id as id,proCode,proName,proContact,proPhone,billCode,productName,
                totalPrice,isPayment from smbms_bill b,smbms_provider p
                    where providerId = p.id and p.id=#{id}
        </select>
    
    
    
    </mapper>
    BillMapper.xml
    <?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.kgc.dao.ProviderMapper">
    
        <!-- 查询供应商表记录数 -->
        <select id="count" resultType="int">
            select count(1) as count from smbms_provider
        </select>
    
        <!-- 查询供应商列表 -->
        <select id="getProviderList" resultType="cn.kgc.pojo.Provider">
            select * from smbms_provider
        </select>
    
        <!-- 根据供应商名称查询供应商列表(模糊查询) -->
        <select id="getProviderListByProName" resultType="cn.kgc.pojo.Provider" parameterType="String">
            select * from smbms_provider where proName like CONCAT ('%',#{proName},'%')
        </select>
    
        <!-- 增加供应商 -->
        <insert id="add" parameterType="Provider">
            insert into smbms_provider (proCode,proName,proDesc,proContact,proPhone,
                                    proAddress,proFax,createdBy,creationDate)
                    values (#{proCode},#{proName},#{proDesc},#{proContact},#{proPhone},#{proAddress},
                    #{proFax},#{createdBy},#{creationDate})
        </insert>
    
        <!-- 修改供应商信息 -->
        <update id="modify" parameterType="Provider">
            update smbms_provider set proCode=#{proCode},proName=#{proName},proDesc=#{proDesc},
                        proContact=#{proContact},proPhone=#{proPhone},proAddress=#{proAddress},
                        proFax=#{proFax},modifyBy=#{modifyBy},modifyDate=#{modifyDate}
                     where id = #{id}
        </update>
    
        <!-- 根据供应商ID删除供应商信息 -->
        <delete id="deleteProviderById" parameterType="Integer">
            delete from smbms_provider where id = #{id}
        </delete>
    
    
    </mapper>
    ProviderMapper.xml
        @Test
        public void test15(){
            SqlSession sqlSession=MybatisUtils.getSqlSession();
            List<Bill> billList = sqlSession.getMapper(BillMapper.class).getBillByName("大");
    
            for (Bill bill : billList) {
                System.out.println(bill.getBillCode() + "---" + bill.getProductName()
                        + "---" + bill.getTotalPrice() + "---" + bill.getIsPayment()
                        + "---" + bill.getCreationDate() + "---" + bill.getProvider().getProName());
            }
        }
    
        @Test
        public void test16(){
            SqlSession sqlSession=MybatisUtils.getSqlSession();
            Bill bill1 = new Bill();
            bill1.setProductName("不");
            bill1.setIsPayment(2);
            bill1.setProviderId(14);
    
            List<Bill> billList = sqlSession.getMapper(BillMapper.class).getBill(bill1);
    
            for (Bill bill : billList) {
                System.out.println(bill.getBillCode() + "---" + bill.getProductName()
                        + "---" + bill.getTotalPrice() + "---" + bill.getIsPayment()
                        + "---" + bill.getCreationDate() + "---" + bill.getProvider().getProName());
            }
        }
    
        @Test
        public void test17(){
            SqlSession sqlSession=MybatisUtils.getSqlSession();
            Bill bill1 = new Bill();
            bill1.setProductName("一加5T");
            bill1.setProductDesc("电子-手机");
            bill1.setProductUnit("部");
            int i = sqlSession.getMapper(BillMapper.class).addBill(bill1);
            sqlSession.commit();
        }
    
        @Test
        public void test18(){
            SqlSession sqlSession=MybatisUtils.getSqlSession();
            Bill bill1 = new Bill();
            bill1.setProductName("小米5sP");
            bill1.setId(21);
            int i = sqlSession.getMapper(BillMapper.class).updateBill(bill1);
            System.out.println(i);
            sqlSession.commit();
        }
    
        @Test
        public void test19(){
            SqlSession sqlSession=MybatisUtils.getSqlSession();
            int i = sqlSession.getMapper(BillMapper.class).deleteBillById(21);
            sqlSession.commit();
            System.out.println(i);
        }
    
        @Test
        public void test20(){
            SqlSession sqlSession=MybatisUtils.getSqlSession();
            List<Provider> providerList = sqlSession.getMapper(BillMapper.class).getProvideById(1);
    
            for (Provider provider : providerList) {
                System.out.println(provider.getId()+"---"+provider.getProName()+"---"+provider.getProContact()
                        +"---"+provider.getProPhone());
                for (Bill bill : provider.getBillList()) {
                    System.out.println("---"+bill.getBillCode()+"---"+bill.getProductName()+"---"+
                            bill.getTotalPrice()+"---"+bill.getIsPayment());
                }
            }
        }
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  • 原文地址:https://www.cnblogs.com/yanglanlan/p/11727696.html
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