46-一对多：先配置一对一环境测试搭建

（1）创建数据库表

/*创建客户表*/
CREATE TABLE cst_customer (
  cust_id bigint(32) NOT NULL AUTO_INCREMENT COMMENT '客户编号(主键)',
  cust_name varchar(32) NOT NULL COMMENT '客户名称(公司名称)',
  cust_source varchar(32) DEFAULT NULL COMMENT '客户信息来源',
  cust_industry varchar(32) DEFAULT NULL COMMENT '客户所属行业',
  cust_level varchar(32) DEFAULT NULL COMMENT '客户级别',
  cust_address varchar(128) DEFAULT NULL COMMENT '客户联系地址',
  cust_phone varchar(64) DEFAULT NULL COMMENT '客户联系电话',
  PRIMARY KEY (`cust_id`)
) ENGINE=InnoDB AUTO_INCREMENT=94 DEFAULT CHARSET=utf8;

/*创建联系人表*/
CREATE TABLE cst_linkman (
  lkm_id bigint(32) NOT NULL AUTO_INCREMENT COMMENT '联系人编号(主键)',
  lkm_name varchar(16) DEFAULT NULL COMMENT '联系人姓名',
  lkm_gender char(1) DEFAULT NULL COMMENT '联系人性别',
  lkm_phone varchar(16) DEFAULT NULL COMMENT '联系人办公电话',
  lkm_mobile varchar(16) DEFAULT NULL COMMENT '联系人手机',
  lkm_email varchar(64) DEFAULT NULL COMMENT '联系人邮箱',
  lkm_position varchar(16) DEFAULT NULL COMMENT '联系人职位',
  lkm_memo varchar(512) DEFAULT NULL COMMENT '联系人备注',
  lkm_cust_id bigint(32) NOT NULL COMMENT '客户id(外键)',
  PRIMARY KEY (`lkm_id`),
  KEY `FK_cst_linkman_lkm_cust_id` (`lkm_cust_id`),
  CONSTRAINT `FK_cst_linkman_lkm_cust_id` FOREIGN KEY (`lkm_cust_id`) REFERENCES `cst_customer` (`cust_id`) ON DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;

（2）导入依赖坐标

<dependencies>

        <!--
            spring相关坐标
        -->

        <!--junit单元测试-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.13.2</version>
            <scope>test</scope>
        </dependency>

        <!--spring beg-->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.9.7</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>5.3.12</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.3.12</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>5.3.10</version>
        </dependency>

        <!--spring对orm框架的支持包-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>5.3.11</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>5.3.12</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>5.3.12</version>
        </dependency>

        <!--
            hibernate相关坐标
        -->
        <!--hibernate beg-->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>6.0.0.Alpha8</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-entitymanager</artifactId>
            <version>6.0.0.Alpha7</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>6.1.5.Final</version>
        </dependency>

        <!--
            c3p0包
        -->
        <dependency>
            <groupId>c3p0</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.1.2</version>
        </dependency>


        <!--
            日志包
        -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.32</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.32</version>
        </dependency>



        <!--
            数据库的坐标
        -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.27</version>
        </dependency>


        <!--
            spring data jpa 坐标
        -->
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-jpa</artifactId>
            <version>2.5.4</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.3.12</version>
        </dependency>


        <!--
            el beg 使用spring data jpa必须引入
        -->
        <dependency>
            <groupId>javax.el</groupId>
            <artifactId>javax.el-api</artifactId>
            <version>3.0.1-b06</version>
        </dependency>
        <dependency>
            <groupId>org.glassfish.web</groupId>
            <artifactId>javax.el</artifactId>
            <version>2.2.6</version>
        </dependency>
    </dependencies>

（3）编写配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:jpa="http://www.springframework.org/schema/data/jpa" xmlns:task="http://www.springframework.org/schema/task"
       xsi:schemaLocation="
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
		http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
		http://www.springframework.org/schema/data/jpa
		http://www.springframework.org/schema/data/jpa/spring-jpa.xsd">

    <!-- 1.dataSource 配置数据库连接池-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.cj.jdbc.Driver" />
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/customer1" />
        <property name="user" value="root" />
        <property name="password" value="2000820." />
    </bean>

    <!-- 2.配置entityManagerFactory对象交给spring容器管理 -->
    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!--配置扫描的包（实体类所在的包）-->
        <property name="packagesToScan" value="com.study.pojo" />
        <!--jpa实现厂家-->
        <property name="persistenceProvider">
            <bean class="org.hibernate.jpa.HibernatePersistenceProvider" />
        </property>

        <!--JPA的供应商适配器-->
        <property name="jpaVendorAdapter">
            <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
                <!--配置是否自动创建数据库表-->
                <property name="generateDdl" value="false" />
                <!--指定数据库的类型-->
                <property name="database" value="MYSQL" />
                <!--数据库方言：支持的特有语法-->
                <property name="databasePlatform" value="org.hibernate.dialect.MySQLDialect" />
                <!--是否显示sql-->
                <property name="showSql" value="true" />
            </bean>
        </property>

        <!--jpa的方言：指定的一些高级的特性-->
        <property name="jpaDialect">
            <bean class="org.springframework.orm.jpa.vendor.HibernateJpaDialect" />
        </property>
    </bean>




    <!-- 3、整合spring data jpa-->
    <!--
        dao接口所在的包
        事务管理器
        因为springdatajpa底层还是jpa，所以还要引用我们上面配置的bean：entityManagerFactory
    -->
    <jpa:repositories base-package="com.study.dao"
                      transaction-manager-ref="transactionManager"
                      entity-manager-factory-ref="entityManagerFactory"></jpa:repositories>

    <!-- 4.事务管理器-->
    <!-- JPA事务管理器  -->
    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory" />
    </bean>


    <!-- 5.txAdvice-->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="save*" propagation="REQUIRED"/>
            <tx:method name="insert*" propagation="REQUIRED"/>
            <tx:method name="update*" propagation="REQUIRED"/>
            <tx:method name="delete*" propagation="REQUIRED"/>
            <tx:method name="get*" read-only="true"/>
            <tx:method name="find*" read-only="true"/>
            <tx:method name="*" propagation="REQUIRED"/>
        </tx:attributes>
    </tx:advice>

    <!-- 6.aop-->
    <aop:config>
        <aop:pointcut id="pointcut" expression="execution(* com.study.service.*.*(..))" />
        <aop:advisor advice-ref="txAdvice" pointcut-ref="pointcut" />
    </aop:config>

    <!--配置包扫描-->
    <context:component-scan base-package="com.study"></context:component-scan>

    <!--组装其它 配置文件-->

</beans>

（4）编写实体类
客户实体类：

package com.study.pojo;
/*
1、实体类和表的映射关系
    @Eitity  //声明实体类
    @Table(name = "表的名称")   //声明实体类和表的映射关系
2、类中属性和表中字段的映射关系
    @Id     //配置主键
    @GeneratedValue     //指定主键的生成策略
    @Column     //属性和表中字段的映射关系
 */

import javax.persistence.*;

@Entity
@Table(name="cst_customer")
public class Customer {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name="cust_id")
    private Long custId;

    @Column(name="cust_address")
    private String custAddress;

    @Column(name="cust_industry")
    private String custIndustry;

    @Column(name="cust_level")
    private String custLevel;

    @Column(name="cust_name")
    private String custName;

    @Column(name="cust_phone")
    private String custPhone;

    @Column(name="cust_source")
    private String custSource;

    public Customer() {
    }

    public Customer(Long custId, String custAddress, String custIndustry, String custLevel, String custName, String custPhone, String custSource) {
        this.custId = custId;
        this.custAddress = custAddress;
        this.custIndustry = custIndustry;
        this.custLevel = custLevel;
        this.custName = custName;
        this.custPhone = custPhone;
        this.custSource = custSource;
    }

    public Long getCustId() {
        return custId;
    }

    public void setCustId(Long custId) {
        this.custId = custId;
    }

    public String getCustAddress() {
        return custAddress;
    }

    public void setCustAddress(String custAddress) {
        this.custAddress = custAddress;
    }

    public String getCustIndustry() {
        return custIndustry;
    }

    public void setCustIndustry(String custIndustry) {
        this.custIndustry = custIndustry;
    }

    public String getCustLevel() {
        return custLevel;
    }

    public void setCustLevel(String custLevel) {
        this.custLevel = custLevel;
    }

    public String getCustName() {
        return custName;
    }

    public void setCustName(String custName) {
        this.custName = custName;
    }

    public String getCustPhone() {
        return custPhone;
    }

    public void setCustPhone(String custPhone) {
        this.custPhone = custPhone;
    }

    public String getCustSource() {
        return custSource;
    }

    public void setCustSource(String custSource) {
        this.custSource = custSource;
    }

    @Override
    public String toString() {
        return "Customer{" +
                "custId=" + custId +
                ", custAddress='" + custAddress + '\'' +
                ", custIndustry='" + custIndustry + '\'' +
                ", custLevel='" + custLevel + '\'' +
                ", custName='" + custName + '\'' +
                ", custPhone='" + custPhone + '\'' +
                ", custSource='" + custSource + '\'' +
                '}';
    }
}

/
/
/
联系人实体类

package com.study.pojo;

import javax.persistence.*;

@Entity
@Table(name = "cst_linkman")
public class LinkMan {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "lkm_id")
    private Long lkmId;//联系人编号（主键）
    @Column(name = "lkm_name")
    private String lkmName;//联系人姓名
    @Column(name = "lkm_gender")
    private String lkmGender;//性别
    @Column(name = "lkm_phone")
    private String lkmPhone;//办公电话
    @Column(name = "lkm_mobile")
    private String lkmMobile;//手机号码
    @Column(name = "lkm_email")
    private String lkmEmail;//邮箱
    @Column(name = "lkm_position")
    private String lkmPosition;//职位
    @Column(name = "lkm_memo")
    private String lkmMemo;//联系人备注

    public Long getLkmId() {
        return lkmId;
    }

    public void setLkmId(Long lkmId) {
        this.lkmId = lkmId;
    }

    public String getLkmName() {
        return lkmName;
    }

    public void setLkmName(String lkmName) {
        this.lkmName = lkmName;
    }

    public String getLkmGender() {
        return lkmGender;
    }

    public void setLkmGender(String lkmGender) {
        this.lkmGender = lkmGender;
    }

    public String getLkmPhone() {
        return lkmPhone;
    }

    public void setLkmPhone(String lkmPhone) {
        this.lkmPhone = lkmPhone;
    }

    public String getLkmMobile() {
        return lkmMobile;
    }

    public void setLkmMobile(String lkmMobile) {
        this.lkmMobile = lkmMobile;
    }

    public String getLkmEmail() {
        return lkmEmail;
    }

    public void setLkmEmail(String lkmEmail) {
        this.lkmEmail = lkmEmail;
    }

    public String getLkmPosition() {
        return lkmPosition;
    }

    public void setLkmPosition(String lkmPosition) {
        this.lkmPosition = lkmPosition;
    }

    public String getLkmMemo() {
        return lkmMemo;
    }

    public void setLkmMemo(String lkmMemo) {
        this.lkmMemo = lkmMemo;
    }

    @Override
    public String toString() {
        return "LinkMan{" +
                "lkmId=" + lkmId +
                ", lkmName='" + lkmName + '\'' +
                ", lkmGender='" + lkmGender + '\'' +
                ", lkmPhone='" + lkmPhone + '\'' +
                ", lkmMobile='" + lkmMobile + '\'' +
                ", lkmEmail='" + lkmEmail + '\'' +
                ", lkmPosition='" + lkmPosition + '\'' +
                ", lkmMemo='" + lkmMemo + '\'' +
                '}';
    }
}

（5）编写dao接口
客户dao接口

联系人dao接口