逆向工程
逆向工程生成实体类和mapper层
pom.xml
<build>
<plugins>
<plugin>
<groupId>org.mybatis.generator
</groupId>
<artifactId>mybatis-generator-maven-plugin
</artifactId>
<version>1.4.0
</version>
<configuration>
<verbose>true
</verbose>
<overwrite>true
</overwrite>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>log4j
</groupId>
<artifactId>log4j
</artifactId>
<version>1.2.17
</version>
</dependency>
<dependency>
<groupId>org.mybatis
</groupId>
<artifactId>mybatis
</artifactId>
<version>3.2.3
</version>
</dependency>
<dependency>
<groupId>mysql
</groupId>
<artifactId>mysql-connector-java
</artifactId>
<version>5.1.23
</version>
</dependency>
<dependency>
<groupId>org.mybatis.generator
</groupId>
<artifactId>mybatis-generator-core
</artifactId>
<version>1.3.6
</version>
</dependency>
</dependencies>
db.properties
#jdbc连接数据库配置信息
#正确的druid的驱动名配置 如果错误，不会设置为druid的驱动，jdk8会自动识别url，进行驱动注册
#mysql 8驱动提供了新的 驱动类 来进行驱动注册
druid.driverClassName =com.mysql.jdbc.Driver
# jdbc:mysql://localhost:3306/yinliu?characterEncoding=utf8&useSSL=false&serverTimezone=Hongkong
druid.url = jdbc:mysql://localhost:3306/netctoss?characterEncoding=utf8
druid.username = root
druid.password = 123456
#连接池可选配置
#初始化的连接数
druid.initialSize=2
#设置生成的表
jdbc.table.items=admin_info
要改的是 druid.url = jdbc:mysql://localhost:3306/netctoss?characterEncoding=utf8 3306：要是你数据库的端口号 netctoss：要改为你的数据库 用户、密码看自己的改 设置生成的表：jdbc.table.items=admin_info admin_info：是看你要生成那张表的数据，然后，把那张表的表名复制粘贴过来
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="db.properties"></properties>
<classPathEntry location="D:\maven\MavenRepository\mysql\mysql-connector-java\5.1.23\mysql-connector-java-5.1.23.jar" />
<context id="default" targetRuntime="MyBatis3">
<commentGenerator>
<property name="suppressDate" value="true"/>
<property name="suppressAllComments" value="true"/>
</commentGenerator>
<jdbcConnection
driverClass="${druid.driverClassName}"
connectionURL="${druid.url}"
userId="${druid.username}"
password="${druid.password}">
</jdbcConnection>
<javaTypeResolver>
<property name="forceBigDecimals" value="false"/>
</javaTypeResolver>
<javaModelGenerator targetPackage="com.generate.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.generate.dao" targetProject="./src/main/java">
<property name="enableSubPackages" value="false" />
</javaClientGenerator>
<table enableSelectByExample="false" enableDeleteByExample="false" enableCountByExample="false" enableUpdateByExample="false" domainObjectName="adminInfo" tableName="${jdbc.table.items}"/>
</context>
</generatorConfiguration>
上面基本要改的无非就
指定特定数据库的jdbc驱动jar包的位置 classPathEntry location 指定你mysql-connector-java.jar包的位置
指定数据库表 domainObjectName:表对应的实体类名 enableUpdateByExample：是否生成updata/count/delete/select等的Example
基本也就改这两个了
然后，给你们看看，上面两个文件的存放位置图，放在resources下
然后，就是一键生成了 然后，就会生成下面图这种形式了
