gradle下mybatis自动生成框架的使用

自动生成框架的意义

主要为了解决人为添加mapper,模型等工作，减少错误，提交效率！

添加引用build.gradle

configurations {
    mybatisgenerator
}

   mybatisgenerator 'org.mybatis.generator:mybatis-generator-core:1.3.5'
   mybatisgenerator 'mysql:mysql-connector-java:5.1.40'
   mybatisgenerator 'tk.mybatis:mapper:3.3.9'

添加配置文件

sources/mybaits目录
config.properties

# jdbc 驱动类名
jdbc.driverclassname=com.mysql.jdbc.driver
# jdbc url: jdbc:mysql:// + 数据库主机地址 + :端口号 + /数据库名
jdbc.url=jdbc:mysql://rm-2ze54unnv814ng1wv3o.mysql.rds.aliyuncs.com:3306/customer_management
# jdbc 用户名及密码
jdbc.username=a
jdbc.password=a123

# 生成实体类所在的包
package.model=cn.customer.entity
# 生成 mapper 类所在的包
package.mapper=cn.customer.mapper
# 生成 mapper xml 文件所在的包，默认存储在 resources 目录下
package.xml=mapper

generatorconfig.xml文件内容

<?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>
    <context id="mysql" targetruntime="mybatis3simple" defaultmodeltype="flat">
        <plugin type="tk.mybatis.mapper.generator.mapperplugin">
            <property name="mappers" value="cn.management.mapper"/>
            <!-- casesensitive默认false，当数据库表名区分大小写时，可以将该属性设置为true -->
            <property name="casesensitive" value="true"/>
        </plugin>
        <commentgenerator>
            <property name="suppressallcomments" value="true"/>
        </commentgenerator>
        <jdbcconnection driverclass="${driverclass}"
                        connectionurl="${connectionurl}"
                        userid="${userid}"
                        password="${password}">
        </jdbcconnection>
        <javamodelgenerator targetpackage="${modelpackage}" targetproject="${src_main_java}"/>
        <sqlmapgenerator targetpackage="${sqlmapperpackage}" targetproject="${src_main_resources}"/>
        <javaclientgenerator targetpackage="${mapperpackage}" targetproject="${src_main_java}" type="xmlmapper"/>
        <!-- sql占位符，表示所有的表 -->
        <table tablename="%">
            <generatedkey column="epa_id" sqlstatement="mysql" identity="true" />
        </table>
    </context>
</generatorconfiguration>

在build.gradle添加脚本

def getdbproperties = {
    def properties = new properties()
    file("src/main/resources/mybatis/jdbc.properties").withinputstream { inputstream ->
        properties.load(inputstream)
    }
    properties
}

task mybatisgenerate << {
    def properties = getdbproperties()
    ant.properties['targetproject'] = projectdir.path
    ant.properties['driverclass'] = properties.getproperty("jdbc.driverclassname")
    ant.properties['connectionurl'] = properties.getproperty("jdbc.url")
    ant.properties['userid'] = properties.getproperty("jdbc.username")
    ant.properties['password'] = properties.getproperty("jdbc.password")
    ant.properties['src_main_java'] = sourcesets.main.java.srcdirs[0].path
    ant.properties['src_main_resources'] = sourcesets.main.resources.srcdirs[0].path
    ant.properties['modelpackage'] = properties.getproperty("package.model")
    ant.properties['mapperpackage'] = properties.getproperty("package.mapper")
    ant.properties['sqlmapperpackage'] = properties.getproperty("package.xml")
    ant.taskdef(
            name: 'mbgenerator',
            classname: 'org.mybatis.generator.ant.generatoranttask',
            classpath: configurations.mybatisgenerator.aspath
    )
    ant.mbgenerator(overwrite: true,
            configfile: 'src/main/resources/mybatis/generatorconfig.xml', verbose: true) {
        propertyset {
            propertyref(name: 'targetproject')
            propertyref(name: 'userid')
            propertyref(name: 'driverclass')
            propertyref(name: 'connectionurl')
            propertyref(name: 'password')
            propertyref(name: 'src_main_java')
            propertyref(name: 'src_main_resources')
            propertyref(name: 'modelpackage')
            propertyref(name: 'mapperpackage')
            propertyref(name: 'sqlmapperpackage')
        }
    }
}

在左侧gradle工具栏里可以找到mybatisgenerate,然后点击发布即可。