目录结构：
pom文件：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.18.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.atyss</groupId>
<artifactId>springboot-mybatis</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>springboot-mybatis</name>
<description>Demo project for Spring Boot</description> <properties>
<java.version>1.8</java.version>
</properties> <dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.2</version>
</dependency> <dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency> <!--引入druid-->
<!-- https://mvnrepository.com/artifact/com.alibaba/druid -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.8</version>
</dependency> <dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies> <build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build> </project>
yml配置文件：
spring:
datasource:
# 数据源基本配置
username: root
password: 123456
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://localhost:3306/mybatis
type: com.alibaba.druid.pool.DruidDataSource
# 数据源其他配置
initialSize: 5
minIdle: 5
maxActive: 20
maxWait: 60000
timeBetweenEvictionRunsMillis: 60000
minEvictableIdleTimeMillis: 300000
validationQuery: SELECT 1 FROM DUAL
testWhileIdle: true
testOnBorrow: false
testOnReturn: false
poolPreparedStatements: true
# 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
filters: stat,wall,log4j
maxPoolPreparedStatementPerConnectionSize: 20
useGlobalDataSourceStat: true
connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500
mybatis:
# 指定全局配置文件位置
config-location: classpath:mybatis/mybatis-config.xml
# 指定sql映射文件位置
mapper-locations: classpath:mybatis/mapper/*.xml
druid配置文件：
package com.mybatisbgm.demo.config; import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration; import javax.sql.DataSource;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map; @Configuration
public class DruidConfig { @ConfigurationProperties(prefix = "spring.datasource")
@Bean
public DataSource druid(){
return new DruidDataSource();
} //配置Druid的监控
//1、配置一个管理后台的Servlet
@Bean
public ServletRegistrationBean statViewServlet(){
ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
Map<String,String> initParams = new HashMap<>(); initParams.put("loginUsername","admin");
initParams.put("loginPassword","123456");
//initParams.put("allow","");//默认就是允许所有访问
//initParams.put("deny","192.168.56.1"); bean.setInitParameters(initParams);
return bean;
} //2、配置一个web监控的filter
@Bean
public FilterRegistrationBean webStatFilter(){
FilterRegistrationBean bean = new FilterRegistrationBean();
bean.setFilter(new WebStatFilter()); Map<String,String> initParams = new HashMap<>();
initParams.put("exclusions","*.js,*.css,/druid/*"); bean.setInitParameters(initParams); bean.setUrlPatterns(Arrays.asList("/*")); return bean;
}
}
最主要的bgm.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> <!-- context：环境
id="DB2Tables"：唯一标示
MyBatis3Simple：生成的简单版
-->
<context id="DB2Tables" targetRuntime="MyBatis3Simple"> <!-- jdbcConnection：jdbc连接 -->
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/javabean"
userId="root"
password="123456">
</jdbcConnection> <javaTypeResolver >
<property name="forceBigDecimals" value="false" />
</javaTypeResolver> <!--javaModelGenerator：生成java模型的配置。（javaBean）
targetPackage:生成的javaBean放在哪个包下
targetProject：放在哪个工程下
-->
<javaModelGenerator targetPackage="com.mybatisbgm.demo.bean"
targetProject=".\src\main\java">
<property name="enableSubPackages" value="true" />
<property name="trimStrings" value="true" />
</javaModelGenerator> <!-- sqlMapGenerator：SQL映射生成器（UserDao.xml mapper文件） -->
<sqlMapGenerator targetPackage="mybatis.mapper"
targetProject=".\src\main\resources">
<property name="enableSubPackages" value="true" />
</sqlMapGenerator> <!-- javaClientGenerator：java客户端生成：
UserDao接口 -->
<javaClientGenerator type="XMLMAPPER"
targetPackage="com.mybatisbgm.demo.mapper"
targetProject=".\src\main\java">
<property name="enableSubPackages" value="true" />
</javaClientGenerator> <!-- 数据库表
tableName：表、名
domainObjectName：对应javaBean名
-->
<table tableName="animals" domainObjectName="Animal"></table> </context>
</generatorConfiguration>
test运行文件：
public static void main(String[] args) throws Exception {
List<String> warnings = new ArrayList<String>();
boolean overwrite = true;
//1、获取mbg文件
File configFile = new File("mbg.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);
System.out.println("运行完成....");
}
生成的文件：