Mybatis反向工程的使用

1. 在15-seckill-service中的pom.xml文件中添加Mybatis反向工程插件

<!--mybatis代碼自動(dòng)生成插件-->
<plugin>
   <groupId>org.mybatis.generator</groupId>
   <artifactId>mybatis-generator-maven-plugin</artifactId>
   <version>1.3.7</version>
   <configuration>
      <!--配置文件的位置-->
      <configurationFile>GeneratorMapper.xml</configurationFile>
      <verbose>true</verbose>
      <overwrite>true</overwrite>
   </configuration>
</plugin>

2. 將反向工程配置文件拷貝到15-seckill-service模塊中

3. 修改反向工程配置文件GeneratorMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">

<generatorConfiguration>

    <!-- 指定連接數(shù)據(jù)庫的JDBC驅(qū)動(dòng)包所在位置，指定到你本機(jī)的完整路徑 -->
    <classPathEntry location="D:/repository/mysql/mysql-connector-java/8.0.13/mysql-connector-java-8.0.13.jar"/>

    <!-- 配置table表信息內(nèi)容體，targetRuntime指定采用MyBatis3的版本 -->
    <context id="tables" targetRuntime="MyBatis3">

        <!-- 抑制生成注釋，由于生成的注釋都是英文的，可以不讓它生成 -->
        <commentGenerator>
            <property name="suppressAllComments" value="true" />
        </commentGenerator>

        <!-- 配置數(shù)據(jù)庫連接信息 注意：使用高版本的驅(qū)動(dòng) url后面應(yīng)該加屬性nullCatalogMeansCurrent=true，否則生成有問題 -->
        <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver"
                        connectionURL="jdbc:mysql://192.168.235.128:3306/seckill?nullCatalogMeansCurrent=true"
                        userId="root"
                        password="123456">
        </jdbcConnection>

        <!-- 生成model類，targetPackage指定model類的包名， targetProject指定生成的model放在eclipse的哪個(gè)工程下面-->
        <javaModelGenerator targetPackage="com.bjpowernode.seckill.model" targetProject="src/main/java">
            <property name="enableSubPackages" value="false" />
            <property name="trimStrings" value="false" />
        </javaModelGenerator>

        <!-- 生成MyBatis的Mapper.xml文件，targetPackage指定mapper.xml文件的包名， targetProject指定生成的mapper.xml放在eclipse的哪個(gè)工程下面 -->
        <sqlMapGenerator targetPackage="com.bjpowernode.seckill.mapper" targetProject="src/main/java">
            <property name="enableSubPackages" value="false" />
        </sqlMapGenerator>

        <!-- 生成MyBatis的Mapper接口類文件,targetPackage指定Mapper接口類的包名， targetProject指定生成的Mapper接口放在eclipse的哪個(gè)工程下面 -->
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.bjpowernode.seckill.mapper" targetProject="src/main/java">
            <property name="enableSubPackages" value="false" />
        </javaClientGenerator>

        <!-- 數(shù)據(jù)庫表名及對(duì)應(yīng)的Java模型類名 -->
        <table tableName="goods"
               domainObjectName="Goods"
               enableCountByExample="false"
               enableUpdateByExample="false"
               enableDeleteByExample="false"
               enableSelectByExample="false"
               selectByExampleQueryId="false"/>
        <table tableName="orders"
               domainObjectName="Orders"
               enableCountByExample="false"
               enableUpdateByExample="false"
               enableDeleteByExample="false"
               enableSelectByExample="false"
               selectByExampleQueryId="false"/>
    </context>
</generatorConfiguration>

4. 生成model及mapper

5. 將生成的model拷貝到15-seckill-interface模塊下，然后刪除掉15-seckill-service下的model

6. 在15-seckill-web和15-seckill-service的pom.xml文件中添加15-seckill-interface接口依賴

<!--秒殺接口依賴-->
<dependency>
   <groupId>com.bjpowernode.seckill</groupId>
   <artifactId>15-seckill-interface</artifactId>
   <version>1.0</version>
</dependency>