idea中使用mybatis创建逆向工程

刺骨的言语ヽ痛彻心扉 2022-04-17 03:28 252阅读 0赞

在main目录下创建resources文件夹，并在该文件夹下创建datasource.properties和generatorConfig.xml配置文件

![20181112171402336.png][]

datasource.properties

db.driverLocation=D:/java_extra_jar/mysql-connector-java-5.1.37-bin.jar
    db.driverClassName=com.mysql.jdbc.Driver
    #db.url=jdbc:mysql://192.1.1.1:3306/mmall?characterEncoding=utf-8
    db.url=jdbc:mysql://localhost:3306/my_ssm?characterEncoding=utf-8
    db.username=root
    db.password=tiger
    
    
    db.initialSize = 20
    db.maxActive = 50
    db.maxIdle = 20
    db.minIdle = 10
    db.maxWait = 10
    db.defaultAutoCommit = true
    db.minEvictableIdleTimeMillis = 3600000

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">
    
    <generatorConfiguration>
        
        <properties resource="datasource.properties"></properties>
        
        <classPathEntry location="${db.driverLocation}" />
    
        <context id="default" targetRuntime="MyBatis3">
    
            
            <commentGenerator>
                <property name="suppressDate" value="true"/>
                <property name="suppressAllComments" value="true"/>
            </commentGenerator>
    
            
            <jdbcConnection
                    driverClass="${db.driverClassName}"
                    connectionURL="${db.url}"
                    userId="${db.username}"
                    password="${db.password}">
            </jdbcConnection>
    
    
            
            <javaTypeResolver>
                <property name="forceBigDecimals" value="false"/>
            </javaTypeResolver>
    
    
            
            
            <javaModelGenerator targetPackage="com.mmall.pojo" targetProject="./src/main/java">
                
                <property name="enableSubPackages" value="false"/>
                
                <property name="constructorBased" value="true"/>
                
                <property name="trimStrings" value="true"/>
                
                <property name="immutable" value="false"/>
            </javaModelGenerator>
    
            
            
            <sqlMapGenerator targetPackage="mappers" targetProject="./src/main/resources">
                <property name="enableSubPackages" value="false"/>
            </sqlMapGenerator>
    
            
    
            
            
            <javaClientGenerator type="XMLMAPPER" targetPackage="com.mmall.dao" targetProject="./src/main/java">
                
                <property name="enableSubPackages" value="false" />
            </javaClientGenerator>
    
    
            <table tableName="mmall_shipping" domainObjectName="Shipping" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
            <table tableName="mmall_cart" domainObjectName="Cart" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
            <table tableName="mmall_cart_item" domainObjectName="CartItem" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
            <table tableName="mmall_category" domainObjectName="Category" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
            <table tableName="mmall_order" domainObjectName="Order" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
            <table tableName="mmall_order_item" domainObjectName="OrderItem" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
            <table tableName="mmall_pay_info" domainObjectName="PayInfo" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
            <table tableName="mmall_product" domainObjectName="Product" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false">
                <columnOverride column="detail" jdbcType="VARCHAR" />
                <columnOverride column="sub_images" jdbcType="VARCHAR" />
            </table>
            <table tableName="mmall_user" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
    
    
            
        </context>
    </generatorConfiguration>

双击就可以了

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTE4MzU0Mw_size_16_color_FFFFFF_t_70][]

在执行的时候报了一个错

Execution default-cli of goal org.mybatis.generator:mybatis-generator-maven-plugin:1.3.2:generate failed: Exception getting JDBC Driver: com.mysql.jdbc.Driver -> \[Help 1\] \[ERROR\]

解决方法：这是因为没有导入mysql-connector-java-5.1.37-bin.jar出现的错误，只要加上

<classPathEntry location="$\{db.driverLocation\}" />

db.driverLocation=D:/java\_extra\_jar/mysql-connector-java-5.1.37-bin.jar

问题就解决了

[20181112171402336.png]: /images/20220417/83dd42c60d334d6ab21f3f99024b7e48.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTE4MzU0Mw_size_16_color_FFFFFF_t_70]: /images/20220417/45d2181e646d484eabd94d0f80e5a74f.png