pom文件添加
<dependencies>
<!--SpringBoot整合MyBatis-->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.3</version>
</dependency>
<!--MyBatis分页插件-->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.3.0</version>
</dependency>
<!--集成druid连接池-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.10</version>
</dependency>
<!-- MyBatis 生成器 -->
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.4.0</version>
</dependency>
<!--Mysql数据库驱动-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.15</version>
</dependency>
</dependencies>
application.yml
在application.yml中对数据源和MyBatis的mapper.xml文件路径进行配置，
- mybatis-plus版：
mybatis-plus:
mapper-locations: classpath:/mapper/*.xml
- mybatis版
mybatis:
mapper-locations: classpath:/mapper/*.xml
配置类
@Configuration
@MapperScan({"com.fig.product.dao.mapper","com.fig.product.dao.modules"})
public class MyBatisConfig {
}
数据库连接配置
文件名:
generator.properties
dataSource.connectionURL=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&serverTimezone=Asia/Shanghai&useSSL=false
dataSource.driverClass=com.mysql.cj.jdbc.Driver
dataSource.userId=root
dataSource.password=123456
添加配置xml
指定生成model的路径，指定生成mapper接口的的路径 要与上面的配置类路径一致
指定生成mapper.xml的路径 要与application.yml配置一致
<?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="generator.properties"/>
<context id="MySqlContext" targetRuntime="MyBatis3" defaultModelType="flat">
<property name="beginningDelimiter" value="`"/>
<property name="endingDelimiter" value="`"/>
<property name="javaFileEncoding" value="UTF-8"/>
<!--生成mapper.xml时覆盖原文件-->
<plugin type="org.mybatis.generator.plugins.UnmergeableXmlMappersPlugin" />
<!-- 为模型生成序列化方法-->
<plugin type="org.mybatis.generator.plugins.SerializablePlugin"/>
<!-- 为生成的Java模型创建一个toString方法 -->
<plugin type="org.mybatis.generator.plugins.ToStringPlugin"/>
<!--可以自定义生成model的代码注释-->
<commentGenerator type="com.fig.product.generator.CommentGenerator">
<!-- 是否去除自动生成的注释 true：是 ：false:否 -->
<property name="suppressAllComments" value="true"/>
<property name="suppressDate" value="true"/>
<property name="addRemarkComments" value="true"/>
</commentGenerator>
<!--配置数据库连接-->
<jdbcConnection driverClass="${dataSource.driverClass}"
connectionURL="${dataSource.connectionURL}"
userId="${dataSource.userId}"
password="${dataSource.password}">
<!--解决mysql驱动升级到8.0后不生成指定数据库代码的问题-->
<property name="nullCatalogMeansCurrent" value="true" />
</jdbcConnection>
<!--指定生成model的路径-->
<javaModelGenerator targetPackage="com.fig.product.dao.modules" targetProject="src\main\java"/>
<!--指定生成mapper.xml的路径-->
<sqlMapGenerator targetPackage="mapper" targetProject="src\main\resources"/>
<!--指定生成mapper接口的的路径-->
<javaClientGenerator type="XMLMAPPER" targetPackage="com.fig.product.dao.mapper"
targetProject="src\main\java"/>
<!--生成全部表tableName设为%-->
<table tableName="ums_admin">
<generatedKey column="id" sqlStatement="MySql" identity="true"/>
</table>
<table tableName="ums_role">
<generatedKey column="id" sqlStatement="MySql" identity="true"/>
</table>
<table tableName="ums_admin_role_relation">
<generatedKey column="id" sqlStatement="MySql" identity="true"/>
</table>
<table tableName="ums_resource">
<generatedKey column="id" sqlStatement="MySql" identity="true"/>
</table>
<table tableName="ums_resource_category">
<generatedKey column="id" sqlStatement="MySql" identity="true"/>
</table>
</context>
</generatorConfiguration>
执行类
import java.util.Properties;
import org.mybatis.generator.api.IntrospectedColumn;
import org.mybatis.generator.api.IntrospectedTable;
import org.mybatis.generator.api.dom.java.CompilationUnit;
import org.mybatis.generator.api.dom.java.Field;
import org.mybatis.generator.api.dom.java.FullyQualifiedJavaType;
import org.mybatis.generator.internal.DefaultCommentGenerator;
import org.mybatis.generator.internal.util.StringUtility;
public class CommentGenerator extends DefaultCommentGenerator {
private boolean addRemarkComments = false;
private static final String EXAMPLE_SUFFIX="Example";
private static final String MAPPER_SUFFIX="Mapper";
private static final String API_MODEL_PROPERTY_FULL_CLASS_NAME="io.swagger.annotations.ApiModelProperty";
/**
* 设置用户配置的参数
*/
@Override
public void addConfigurationProperties(Properties properties) {
super.addConfigurationProperties(properties);
this.addRemarkComments = StringUtility.isTrue(properties.getProperty("addRemarkComments"));
}
/**
* 给字段添加注释
*/
@Override
public void addFieldComment(Field field, IntrospectedTable introspectedTable,
IntrospectedColumn introspectedColumn) {
String remarks = introspectedColumn.getRemarks();
//根据参数和备注信息判断是否添加备注信息
if(addRemarkComments&&StringUtility.stringHasValue(remarks)){
//数据库中特殊字符需要转义
if(remarks.contains("\"")){
remarks = remarks.replace("\"","'");
}
//给model的字段添加swagger注解
field.addJavaDocLine("@ApiModelProperty(value = \""+remarks+"\")");
}
}
@Override
public void addJavaFileComment(CompilationUnit compilationUnit) {
super.addJavaFileComment(compilationUnit);
//只在model中添加swagger注解类的导入
String fullyQualifiedName = compilationUnit.getType().getFullyQualifiedName();
if(!fullyQualifiedName.contains(MAPPER_SUFFIX)&&!fullyQualifiedName.contains(EXAMPLE_SUFFIX)){
compilationUnit.addImportedType(new FullyQualifiedJavaType(API_MODEL_PROPERTY_FULL_CLASS_NAME));
}
}
}
import java.io.InputStream;
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;
public class Generator {
public static void main(String[] args) throws Exception {
//MBG 执行过程中的警告信息
List<String> warnings = new ArrayList<String>();
//当生成的代码重复时，覆盖原代码
boolean overwrite = true;
//读取我们的 MBG 配置文件
InputStream is = Generator.class.getResourceAsStream("/utils/generatorConfig.xml");
ConfigurationParser cp = new ConfigurationParser(warnings);
Configuration config = cp.parseConfiguration(is);
is.close();
DefaultShellCallback callback = new DefaultShellCallback(overwrite);
//创建 MBG
MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings);
//执行生成代码
myBatisGenerator.generate(null);
//输出警告信息
for (String warning : warnings) {
System.out.println(warning);
}
}
}
配置要写正确
InputStream is = Generator.class.getResourceAsStream("/utils/generatorConfig.xml");