• SpringBoot项目的mybatis逆向工程


    <dependencies>
    <!--mybatis-->
    <dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>1.3.1</version>
    </dependency>
    <!--mapper-->
    <dependency>
    <groupId>tk.mybatis</groupId>
    <artifactId>mapper-spring-boot-starter</artifactId>
    <version>1.2.4</version>
    </dependency>
    <!--pagehelper-->
    <dependency>
    <groupId>com.github.pagehelper</groupId>
    <artifactId>pagehelper-spring-boot-starter</artifactId>
    <version>1.2.3</version>
    </dependency>
    <!-- mapper生成依赖 -->
    <dependency>
    <groupId>org.mybatis.generator</groupId>
    <artifactId>mybatis-generator-core</artifactId>
    <version>1.3.2</version>
    <scope>compile</scope>
    <optional>true</optional>
    </dependency>
    <dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.34</version>
    </dependency>
    </dependencies>

    <build>
    <plugins>
    <plugin>
    <groupId>org.mybatis.generator</groupId>
    <artifactId>mybatis-generator-maven-plugin</artifactId>
    <version>1.3.2</version>
    <configuration>
    <configurationFile>src/main/resources/generator/generatorConfig.xml</configurationFile>
    <overwrite>true</overwrite>
    <verbose>true</verbose>
    </configuration>
    <dependencies>
    <dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.34</version>
    </dependency>
    <dependency>
    <groupId>tk.mybatis</groupId>
    <artifactId>mapper-generator</artifactId>
    <version>1.0.0</version>
    </dependency>
    </dependencies>
    </plugin>
    </plugins>
    </build>
     以上配置包含以下内容,需要在相应的位置创建generatorConfig.xml

    generatorConfig.xml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>
    <!-- 引入配置文件 -->
    <properties resource="generator/db.properties"/>

    <!--classPathEntry:数据库的JDBC驱动,换成你自己的驱动位置 可选 -->
    <!--<classPathEntry location="D:generator_mybatismysql-connector-java-5.1.24-bin.jar" /> -->

    <context id="Mysql" targetRuntime="MyBatis3Simple" defaultModelType="flat"><!--defaultModelType="flat" 大数据字段,不分表 -->
    <!-- 自动识别数据库关键字,默认false,如果设置为true,根据SqlReservedWords中定义的关键字列表;
    一般保留默认值,遇到数据库关键字(Java关键字),使用columnOverride覆盖 -->
    <property name="autoDelimitKeywords" value="true"/>
    <!-- 生成的Java文件的编码 -->
    <property name="javaFileEncoding" value="utf-8"/>
    <!-- beginningDelimiter和endingDelimiter:指明数据库的用于标记数据库对象名的符号,比如ORACLE就是双引号,MYSQL默认是`反引号; -->
    <property name="beginningDelimiter" value="`"/>
    <property name="endingDelimiter" value="`"/>
    <!-- 格式化java代码 -->
    <property name="javaFormatter" value="org.mybatis.generator.api.dom.DefaultJavaFormatter"/>
    <!-- 格式化XML代码 -->
    <property name="xmlFormatter" value="org.mybatis.generator.api.dom.DefaultXmlFormatter"/>
    <plugin type="org.mybatis.generator.plugins.SerializablePlugin"/>
    <plugin type="org.mybatis.generator.plugins.ToStringPlugin"/>
    <!--baseMap所在位置-->
    <plugin type="tk.mybatis.mapper.generator.MapperPlugin">
    <property name="mappers" value="com.pzg.code.commons.utils.MyMapper"/>
    </plugin>
    <!-- 注释 -->
    <commentGenerator>
    <property name="suppressAllComments" value="false"/><!-- 是否取消注释 -->
    <property name="suppressDate" value="true"/> <!-- 是否生成注释代时间戳-->
    </commentGenerator>
    <!-- jdbc连接 -->
    <jdbcConnection driverClass="${spring.datasource.driver-class-name}"
    connectionURL="${spring.datasource.url}"
    userId="${spring.datasource.username}"
    password="${spring.datasource.password}">
    </jdbcConnection>
    <!-- 类型转换 -->
    <javaTypeResolver>
    <!-- 是否使用bigDecimal, false可自动转化以下类型(Long, Integer, Short, etc.) -->
    <property name="forceBigDecimals" value="false"/>
    </javaTypeResolver>
    <!-- 生成实体 -->
    <javaModelGenerator targetPackage="com.pzg.code.one.entity"
    targetProject="src/main/java">
    <property name="enableSubPackages" value="false"/>
    <property name="trimStrings" value="true"/>
    </javaModelGenerator>
    <!-- 生成xml文件 -->
    <sqlMapGenerator targetPackage="mapper"
    targetProject="src/main/resources">
    <property name="enableSubPackages" value="false"/>
    </sqlMapGenerator>
    <!-- 生成dao接口 -->
    <javaClientGenerator targetPackage="com.pzg.code.one.mapper"
    targetProject="src/main/java"
    type="XMLMAPPER">
    <property name="enableSubPackages" value="false"/>
    </javaClientGenerator>
    <!-- tableName表示要匹配的数据库表,domainObjectName表示实体类名称-->
    <table tableName="user"
    domainObjectName="User"
    enableCountByExample="true"
    enableUpdateByExample="true"
    enableDeleteByExample="true"
    enableSelectByExample="true"
    selectByExampleQueryId="true">
    <property name="useActualColumnNames" value="false"/>
    <!-- 数据库表主键 -->
    <generatedKey column="id" sqlStatement="Mysql" identity="true"/>
    </table>
    </context>
    </generatorConfiguration>
    generatorConfig.xml内容中的数据库连接是引用的配置文件 

     引用的db.properties文件内容如下

    数据库连接也可以无需引用,直接配置,如下图 

    generatorConfig.xml中的baseMap


    可在相应的位置创建MyMapper.java,如下

    最后调出右侧maven,如下,双击蓝色阴影部分,自动生成相关代码
    --------------------- 

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  • 原文地址:https://www.cnblogs.com/hyhy904/p/10987449.html
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