1.pom.xml引入相关依赖，这里是使用一个大佬的方法,他的github地址：点击打开链接
<dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.1.0</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.41</version> </dependency> <!--mybatis--> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.1</version> </dependency> <!--mapper的生成类--> <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> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid-spring-boot-starter</artifactId> <version>1.1.9</version> </dependency> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.3.2</version> <scope>compile</scope> <optional>true</optional> </dependency>
2.application.properties 配置，使用阿里巴巴的druid数据源，大佬们都说这个比较好，mapper.mappers=com.smxy.lq.utils.MyMapper
############################################################ # # mybatis 配置 # ############################################################ #mybatis mybatis.type-aliases-package=com.smxy.lq.pojo mybatis.mapper-locations=classpath:mapper/*.xml #mapper #mappers 多个接口时逗号隔开 mapper.mappers=com.smxy.lq.utils.MyMapper mapper.not-empty=false mapper.identity=MYSQL #pagehelper分页插件 pagehelper.helperDialect=mysql pagehelper.reasonable=true pagehelper.supportMethodsArguments=true pagehelper.params=count=countSql ############################################################ # # 配置数据源相关 使用阿里巴巴的druid数据源 # ############################################################ spring.datasource.url=jdbc:mysql://localhost:3306/springboot spring.datasource.username=root spring.datasource.password=123 spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.druid.initial-size=1 spring.datasource.druid.min-idle=1 spring.datasource.druid.max-active=20 spring.datasource.druid.test-on-borrow=true spring.datasource.druid.stat-view-servlet.allow=true
3.配置generatorConfig.xml，用于生成sql语句的xml,java的pojo类，以及mapper接口
<?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="DB2Tables" targetRuntime="MyBatis3Simple" defaultModelType="flat">
<property name="beginningDelimiter" value="`" />
<property name="endingDelimiter" value="`" />
<plugin type="tk.mybatis.mapper.generator.MapperPlugin">
<property name="mappers" value="com.smxy.lq.utils.MyMapper" />
</plugin>
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/springboot" userId="root"
password="123">
</jdbcConnection>
<!-- 对于生成的pojo所在包 -->
<javaModelGenerator targetPackage="com.smxy.lq.pojo"
targetProject="src/main/java" />
<!-- 对于生成的mapper所在目录 -->
<sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources" />
<!-- 配置mapper对应的java映射 -->
<javaClientGenerator targetPackage="com.smxy.lq.mapper"
targetProject="src/main/java" type="XMLMAPPER" />
<table tableName="sb_user" ></table>
</context>
</generatorConfiguration>
4.写一个工具类接口继承tk.mybatis.mappe里面的Mapper<T>, MySqlMapper<T>类，创建mapper时实现自己写的MyMapper接口就可以使用mapper的通用方法了，不需要我们自己写增删改查的sql语句
数据的创建一个表
5.创建java工具类并Run as->java application，执行generatorConfig.xml文件
package com.smxy.lq.utils;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import org.mybatis.generator.api.MyBatisGenerator;
import org.mybatis.generator.config.Configuration;
import org.mybatis.generator.config.xml.ConfigurationParser;
import org.mybatis.generator.internal.DefaultShellCallback;
/**
*
* @Description 逆行生成工具类
* @author Bush罗
* @date 2018年4月15日
*
*/
public class GeneratorDisplay {
public void generator() throws Exception{
List<String> warnings = new ArrayList<String>();
boolean overwrite = true;
//指定 逆向工程配置文件
File configFile = new File("generatorConfig.xml");
ConfigurationParser cp = new ConfigurationParser(warnings);
Configuration config = cp.parseConfiguration(configFile);
DefaultShellCallback callback = new DefaultShellCallback(overwrite);
MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config,
callback, warnings);
myBatisGenerator.generate(null);
}
public static void main(String[] args) throws Exception {
try {
GeneratorDisplay generatorSqlmap = new GeneratorDisplay();
generatorSqlmap.generator();
} catch (Exception e) {
e.printStackTrace();
}
}
}
6.生成相应的代码
扫描mapper下的包
7.测试，使用insert是会使用mapper自带的插入方法，里面还有许多自带的方法，可自行尝试
