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  • Mybaits课堂练习02

    public class Bill {
        private Integer id;
        private String billCode;
        private String productName;
        private String productDesc;
        private String productUnit;
        private Double productCount;
        private Double totalPrice;
        private Integer isPayment;
        private Integer createdBy;
        private String creationDate;
        private Integer modifyBy;
        private String modifyDate;
        private Integer providerId;
    
        public Integer getId() {
            return id;
        }
    
        public void setId(Integer 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 Double getProductCount() {
            return productCount;
        }
    
        public void setProductCount(Double productCount) {
            this.productCount = productCount;
        }
    
        public Double getTotalPrice() {
            return totalPrice;
        }
    
        public void setTotalPrice(Double totalPrice) {
            this.totalPrice = totalPrice;
        }
    
        public Integer getIsPayment() {
            return isPayment;
        }
    
        public void setIsPayment(Integer isPayment) {
            this.isPayment = isPayment;
        }
    
        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 String getModifyDate() {
            return modifyDate;
        }
    
        public void setModifyDate(String modifyDate) {
            this.modifyDate = modifyDate;
        }
    
        public Integer getProviderId() {
            return providerId;
        }
    
        public void setProviderId(Integer providerId) {
            this.providerId = providerId;
        }
    
        public Provider getProvider() {
            return provider;
        }
    
        public void setProvider(Provider provider) {
            this.provider = provider;
        }
    
        private Provider provider;
    
    
    }
    Bill实体类
    <?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.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>
    <!-- 通过商品名称模糊查询订单数据-->
        <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>
        <!--    通过商品名称(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>
    
        <!--    供应商表的增加-->
        <insert id="addBill" parameterType="Bill">
            insert into smbms_bill(productName,productDesc,productUnit)
            values(#{productName},#{productDesc},#{productUnit});
        </insert>
        <!--    根据id修改其信息-->
        <update id="updateBill" parameterType="Bill">
            update smbms_bill set productName=#{productName} where id = #{id}
        </update>
    <!--    根据id删除信息-->
        <delete id="deleteBillById" parameterType="Bill">
            delete from smbms_bill where id = #{id}
        </delete>
    
    
        <!--   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
    public interface BillMapper {
        /**
         * 根据商品名查询订单信息(模糊查询)
         * @param name
         * @return
         */
        List<Bill> getBillByName(String name);
        /**
         * 按照 商品名称(模糊查询), 供应商id, 是否付款
         * 查询订单信息
         * @param bill
         * @return
         */
        List<Bill> getBill(Bill bill);
    
        /**
         * 增加商品名,商品类型,商品件数单位
         * @param bill
         * @return
         */
        int addBill(Bill bill);
    
        /**
         * 根据id,修改商品名
         * @param bill
         * @return
         */
        int updateBill(Bill bill);
    
        /**
         * 根据id 删除其数据
         * @param bill
         */
    
        int deleteBillById(int bill);
    
        /**
         * 根据id获取供应商及其供应商品信息
         * @param id
         * @return
         */
        List<Provider> getProvideById(int id);
    
    }
    BillMapper
    public class BillTest {
        SqlSession session = MybatisUtils.getSqlSession();
    
    
        /**
         * 通过商品名称模糊查询订单数据
         */
        @Test
        public void test01(){
    
            List<Bill> billList= session.getMapper(BillMapper.class).getBillByName("油");
            for (Bill bill:billList
                 ) {
                System.out.println(bill.getBillCode()+bill.getProductName()+
                        bill.getTotalPrice()+bill.getIsPayment()+bill.getCreationDate()
                +bill.getProvider().getProName());
    
            }
        }
        @Test
        public void test02() {
            Bill bill1 = new Bill();
            bill1.setProductName("海");
            bill1.setIsPayment(1);
            bill1.setProviderId(11);
    
            List<Bill> billList = session.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 addTest(){
            Bill bill1 = new Bill();
            bill1.setProductName("维他柠檬茶");
            bill1.setProductDesc("饮料--茶");
            bill1.setProductUnit("罐");
            int i = session.getMapper(BillMapper.class).addBill(bill1);
            session.commit();
        }
    
        @Test
        public void updateTest(){
            Bill bill1 = new Bill();
            bill1.setProductDesc("饮料--茶");
    
            bill1.setId(21);
            int i = session.getMapper(BillMapper.class).updateBill(bill1);
            System.out.println(i);
            session.commit();
        }
    
        @Test
        public void deleteBillByIdTest(){
            int i = session.getMapper(BillMapper.class).deleteBillById(19);
            session.commit();
            System.out.println(i);
        }
    
        @Test
        public void providerTest(){
            List<Provider> providerList = session.getMapper(BillMapper.class).getProvideById(2);
    
            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());
                }
            }
        }
    }
    BillTest

    运行结果:

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  • 原文地址:https://www.cnblogs.com/hxtzzz/p/11726636.html
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