mybatis 代码生成器，帮助我们快速代码开发。
实现过程：
1. pom依赖：
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<!--该配置依据idea环境非必须 -->
<configuration>
<fork>true</fork>
</configuration>
</plugin>
<!-- 代码生成器插件-->
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.7</version>
</plugin>
</plugins>
<!-- 若没有配置.xml文件，则*Mapper.xml文件不会生成到编译后的包中，运行后，Mapper接口匹配不到*Mapper.xml文件，将会报如下错误。-->
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
<includes>
<include>generatorConfig.xml</include>
</includes>
</resource>
<!-- Include other files as resources files. -->
<resource>
<directory>src/main/resources</directory>
<filtering>false</filtering>
<excludes>
<exclude>generatorConfig.xml</exclude>
</excludes>
</resource>
</resources>
</build>
2. resource根目录下 generatorConfig.xml 配置文件：
<?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>
<!--数据库驱动jar -->
<classPathEntry location="D:\program\apache-maven-3.6.2\repository\mysql\mysql-connector-java\5.1.1\mysql-connector-java-5.1.1.jar" />
<context id="Tables" targetRuntime="MyBatis3">
<!--去除注释 -->
<commentGenerator>
<property name="suppressAllComments" value="true" />
</commentGenerator>
<!--数据库连接 -->
<jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://172.24.1.226:3306/stock_change_analyse?characterEncoding=UTF-8&useSSL=false" userId="root" password="aa_bb_CC1234">
</jdbcConnection>
<!--默认false Java type resolver will always use java.math.BigDecimal if the database column is of type DECIMAL or NUMERIC. -->
<javaTypeResolver>
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>
<!-- ************************* targetProject 最好使用相对路径,否则会报错(Project does not exist) **************** -->
<!--生成实体类 指定包名 以及生成的地址 （可以自定义地址，但是路径不存在不会自动创建 使用Maven生成在target目录下，会自动创建） -->
<javaModelGenerator targetPackage="com.stcn.pojo" targetProject="src/main/java">
<property name="enableSubPackages" value="true" />
<property name="trimStrings" value="true" />
</javaModelGenerator>
<!--生成SQL MAP文件 -->
<sqlMapGenerator targetPackage="com.stcn.mapper" targetProject="src/main/java">
<property name="enableSubPackages" value="false" />
</sqlMapGenerator>
<!--生成Dao文件 可以配置 type="XMLMAPPER"生成xml的dao实现 context id="DB2Tables" 修改targetRuntime="MyBatis3" -->
<javaClientGenerator type="XMLMAPPER" targetPackage="com.stcn.dao" targetProject="src/main/java">
<property name="enableSubPackages" value="false" />
</javaClientGenerator>
<!--对应数据库表 mysql可以加入主键自增 字段命名 忽略某字段等 -->
<table tableName="stock_vol_ratio_top" domainObjectName="StockVolRatioTop" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />
</context>
</generatorConfiguration>
