修改配置文件:
<?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>2.1.5.RELEASE</version>
</parent>
<packaging>jar</packaging>
<groupId>org.example</groupId>
<artifactId>untitled</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<java.version>1.8</java.version>
<maven-jar-plugin.version>3.1.1</maven-jar-plugin.version>
</properties>
<dependencies>
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator</artifactId>
<version>1.3.3</version>
</dependency>
<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>2.0.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.2.10</version>
</dependency>
<!-- 阿里巴巴 druid数据源 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.16</version>
</dependency>
<!-- 阿里巴巴json包 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.58</version>
</dependency>
</dependencies>
<build>
<plugins>
<!-- 自动生成代码插件 -->
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.2</version>
<configuration>
<!--配置文件的位置-->
<configurationFile>src/main/resources/generatorConfig.xml</configurationFile>
<verbose>true</verbose>
<overwrite>true</overwrite>
</configuration>
<executions>
<execution>
<id>Generate MyBatis Artifacts</id>
<goals>
<goal>generate</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.2</version>
</dependency>
</dependencies>
</plugin>
</plugins>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.yml</include> <include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
</build>
</project>
在resources文件夹里添加generatorConfig.xml文件,下载一个mysql连接jar包,放在对应位置。
官方文档
<?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>
<!--mysql 连接数据库jar 这里选择自己本地位置;
如果不知道maven本地仓库地址,可以使用EveryThing工具全局搜索mysql-connector-java,找到jar包位置;
也可以手动下载一个jar放在指定位置,进行引用。
-->
<classPathEntry location="F:/mysql-connector-java-5.1.47.jar"/>
<context id="testTables" targetRuntime="MyBatis3">
<commentGenerator>
<!-- 是否去除自动生成的注释,true:是,false:否 -->
<property name="suppressAllComments" value="true"/>
</commentGenerator>
<!--数据库连接的信息:驱动类、连接地址、用户名、密码 -->
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/***" userId="root"
password="">
</jdbcConnection>
<!-- 默认false,把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer,为 true时把JDBC DECIMAL 和
NUMERIC 类型解析为java.math.BigDecimal -->
<javaTypeResolver>
<property name="forceBigDecimals" value="false"/>
</javaTypeResolver>
<!-- 指定javaBean生成的位置
targetPackage:生成的类要放的包,真实的包受enableSubPackages属性控制;
targetProject:目标项目,指定一个存在的目录下,生成的内容会放到指定目录中,如果目录不存在,MBG不会自动建目录
-->
<javaModelGenerator targetPackage="com.xiling.dao.model" targetProject="src/main/java">
<!-- 在targetPackage的基础上,根据数据库的schema再生成一层package,最终生成的类放在这个package下,默认为false;如果多个数据库改为true分目录 -->
<property name="enableSubPackages" value="false"/>
<!-- 设置是否在getter方法中,对String类型字段调用trim()方法 -->
<property name="trimStrings" value="true"/>
</javaModelGenerator>
<!-- 指定mapper映射文件生成的位置
targetPackage、targetProject同javaModelGenerator中作用一样-->
<sqlMapGenerator targetPackage="com.**.dao.mapper" targetProject="src/main/java">
<property name="enableSubPackages" value="false"/>
</sqlMapGenerator>
<!-- 指定mapper接口生成的位置
targetPackage、targetProject同javaModelGenerator中作用一样
-->
<javaClientGenerator type="XMLMAPPER" targetPackage="com.***.dao" targetProject="src/main/java">
<property name="enableSubPackages" value="false"/>
</javaClientGenerator>
<!-- 指定数据库表
domainObjectName:生成的domain类的名字,当表名和domain类的名字有差异时一定要设置,如果不设置,直接使用表名作为domain类的名字;
可以设置为somepck.domainName,那么会自动把domainName类再放到somepck包里面;
-->
<table tableName="******" domainObjectName="*****"></table>
</context>
</generatorConfiguration>
同目录文件夹下添加mysql配置,mybatis配置文件application.yml
server:
port: 8080
spring:
datasource:
name: mysql_test
type: com.alibaba.druid.pool.DruidDataSource
#druid相关配置
druid:
#监控统计拦截的filters
filters: stat
driver-class-name: com.mysql.cj.jdbc.Driver
#基本属性
url: jdbc:mysql://localhost:3306/xxx?useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true&serverTimezone=UTC
username: root
password: xxx
#配置初始化大小/最小/最大
initial-size: 1
min-idle: 1
max-active: 20
#获取连接等待超时时间
max-wait: 60000
#间隔多久进行一次检测,检测需要关闭的空闲连接
time-between-eviction-runs-millis: 60000
#一个连接在池中最小生存的时间
min-evictable-idle-time-millis: 300000
validation-query: SELECT 'x'
test-while-idle: true
test-on-borrow: false
test-on-return: false
#打开PSCache,并指定每个连接上PSCache的大小。oracle设为true,mysql设为false。分库分表较多推荐设置为false
pool-prepared-statements: false
max-pool-prepared-statement-per-connection-size: 20
##
mybatis:
mapper-locations: classpath:com/**/dao/mapper/.xml
#注意:一定要对应mapper映射xml文件的所在路径
type-aliases-package: com.xiling.dao.model # 注意:对应实体类的路径
configuration:
log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
#pagehelper
pagehelper:
helperDialect: mysql
reasonable: true
supportMethodsArguments: true
params: count=countSql
#returnPageInfo: check
在maven设置里这样写,运行即可。