1.先建几个目录
Java 目录下建两个文件夹用来存放entity和java mapper接口
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recourse 目录建generator存放插件配置 mapper存放xml
2.插件generator目录里面新建两个文件
- 1.generatorConfig.properties
# 插件路径
drive.class.path=C:\\work\\mysql-connector-5.1.8.jar
# 数据库配置
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/tableName?useUnicode=true&characterEncoding=utf-8&useSSL=false
jdbc.username=user
jdbc.password=pwd
# 生成路径
entity.package=AutoPlug.Entity
dao.package=AutoPlug.Dao
xml.mapper.package=mapper
#目录
target.path1=src/main/java
target.path2=src/main/resources
#数据库表名(前)和实体名(后)
target.tableName=databaseTableName
target.domainObjectName=javaentityName
- 2.generatorConfig.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">
<!-- 配置Run As Maven build : Goals 参数 : mybatis-generator:generate -Dmybatis.generator.overwrite=true -->
<!-- 配置 tableName,使用 Run As Maven build 生成 dao model 层 -->
<generatorConfiguration>
<!-- 配置文件路径 -->
<properties url="${mybatis.generator.generatorConfig.properties}" />
<!-- 配置数据库驱动 -->
<classPathEntry location="${drive.class.path}" />
<!-- 配置生成信息 -->
<!-- The content of element type "context" must match "(property*,plugin*,commentGenerator?,
(connectionFactory|jdbcConnection),javaTypeResolver?,javaModelGenerator,
sqlMapGenerator?,javaClientGenerator?,table+)". -->
<context id="mysqlTables" targetRuntime="MyBatis3">
<!-- 防止部分IDE,在进行代码生成器过程中,自定义注释部分 中文乱码 -->
<property name="javaFileEncoding" value="UTF-8" />
<!--关闭注释 -->
<commentGenerator>
<property name="suppressDate" value="true" />
<property name="suppressAllComments" value="true" />
</commentGenerator>
<!--数据库连接信息 -->
<jdbcConnection driverClass="${jdbc.driver}" connectionURL="${jdbc.url}" userId="${jdbc.username}" password="${jdbc.password}">
<!-- 针对mysql数据库 -->
<property name="useInformationSchema" value="true"></property>
</jdbcConnection>
<javaTypeResolver>
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>
<!-- 生成model模型包路径 -->
<javaModelGenerator targetPackage="${entity.package}" targetProject="${target.path1}">
<property name="enableSubPackages" value="true" />
<property name="trimStrings" value="true" />
</javaModelGenerator>
<!-- 生成映射文件包路径 -->
<sqlMapGenerator targetPackage="${xml.mapper.package}" targetProject="${target.path2}">
<property name="enableSubPackages" value="true" />
</sqlMapGenerator>
<!-- 生成dao包名路径 -->
<javaClientGenerator type="XMLMAPPER" targetPackage="${dao.package}" targetProject="${target.path1}">
<property name="enableSubPackages" value="true" />
</javaClientGenerator>
<!--对应数据库表名 -->
<!-- 要生成的表 tableName是数据库中的表名或视图名 domainObjectName是实体类名 -->
<table tableName="${target.tableName}" domainObjectName="${target.domainObjectName}" enableCountByExample="false" enableSelectByExample="false" enableUpdateByExample="false" enableDeleteByExample="false"></table>
</context>
</generatorConfiguration>
3.配置pol.xml
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<!-- plugin setting -->
<mybatis.generator.generatorConfig.xml>${basedir}/src/main/resources/generator/generatorConfig.xml</mybatis.generator.generatorConfig.xml>
<mybatis.generator.generatorConfig.properties>file:///${basedir}/src/main/resources/generator/generatorConfig.properties</mybatis.generator.generatorConfig.properties>
<!-- plugin versions -->
<plugin.mybatis.generator>1.3.5</plugin.mybatis.generator>
<maven.compiler.encoding>UTF-8</maven.compiler.encoding>
</properties>
<build>
<!--<finalName>mySpringBoot</finalName>-->
<defaultGoal>compile</defaultGoal>
<plugins>
<!-- 配置Mybatis generator代码生成插件 -->
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>${plugin.mybatis.generator}</version>
<configuration>
<configurationFile>${mybatis.generator.generatorConfig.xml}</configurationFile>
<verbose>true</verbose>
<overwrite>true</overwrite>
</configuration>
</plugin>
</plugins>
</build>
4.最后编译命令
总结
1、pom.xml
<properties>
<mybatis.generator.generatorConfig.xml>${basedir}/src/main/resources/generator/generatorConfig.xml</mybatis.generator.generatorConfig.xml>
<mybatis.generator.generatorConfig.properties>file:///${basedir}/src/main/resources/generator/generatorConfig.properties</mybatis.generator.generatorConfig.properties>
<plugin.mybatis.generator>1.3.5</plugin.mybatis.generator>
</properties>
<build>
<plugins>
<!-- 配置Mybatis generator代码生成插件 -->
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>${plugin.mybatis.generator}</version>
<configuration>
<configurationFile>${mybatis.generator.generatorConfig.xml}</configurationFile>
<verbose>true</verbose>
<overwrite>true</overwrite>
</configuration>
</plugin>
</plugins>
</build>
2、修改generatorConfig.properties文件
a、插件路径
b、数据库信息
c、生成路径
d、配置表名实体名
3、使用maven运行mybatis-generator-maven-plugin插件
a、在Intellij IDEA添加一个“Run运行”选项,使用maven运行mybatis-generator-maven-plugin插件
b、“Command line” 选项中输入“mybatis-generator:generate -e” 这里加了“-e ”选项是为了让该插件输出详细信息,这样可以帮助我们定位问题。(有时也不能加 -e)
c、如果添加成功,则run
4、生成的mapper.java文件添加扫苗注解
@Repository
@Mapper
注意事项:
该配置重复执行会无限写入xml 到时候会报重复id异常
插件地址:
链接:https://pan.baidu.com/s/1djjHLDCkCK7AruM8p0mW8w
提取码:48xg
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