总结：mybatis-generator两种使用方式pom-plugin、main方法

1. 使用Maven plugin生成

• pom.xml

<?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>    <groupId>cn.xiaows</groupId>    <artifactId>app</artifactId>    <version>0.0.1-SNAPSHOT</version>    <name>app</name>    <properties>        <java.version>1.8</java.version>    </properties>    <dependencies>        <!-- ... -->        <!--mapper-->        <dependency>            <groupId>tk.mybatis</groupId>            <artifactId>mapper-spring-boot-starter</artifactId>            <version>1.2.4</version>        </dependency>    </dependencies>    <build>        <plugins>            <plugin>                <groupId>org.mybatis.generator</groupId>                <artifactId>mybatis-generator-maven-plugin</artifactId>                <version>1.3.4</version>                <configuration>                    <configurationFile>${basedir}/src/main/resources/mybatis-generator.xml</configurationFile>                    <overwrite>true</overwrite>                    <verbose>true</verbose>                </configuration>                <dependencies>                    <dependency>                        <groupId>mysql</groupId>                        <artifactId>mysql-connector-java</artifactId>                        <version>5.1.46</version>                    </dependency>                    <dependency>                        <groupId>tk.mybatis</groupId>                        <artifactId>mapper-generator</artifactId>                        <version>1.0.0</version>                    </dependency>                </dependencies>            </plugin>        </plugins>    </build></project>

• src/main/resources/mybatis-generator.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 id="MysqlContext" targetRuntime="MyBatis3Simple" defaultModelType="flat">        <property name="beginningDelimiter" value="`"/>        <property name="endingDelimiter" value="`"/>        <plugin type="tk.mybatis.mapper.generator.MapperPlugin">            <property name="mappers" value="cn.xiaows.app.util.MyMapper"/>        </plugin>        <jdbcConnection driverClass="com.mysql.jdbc.Driver"                        connectionURL="jdbc:mysql://localhost:3306/mydb"                        userId="root"                        password="123456">        </jdbcConnection>        <!-- 对于生成的entity所在包 -->        <javaModelGenerator targetPackage="cn.xiaows.app.entity" targetProject="src/main/java"/>        <!-- 对于生成的mapper所在目录 -->        <sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources"/>        <!--<sqlMapGenerator targetPackage="cn.xiaows.app.dao" targetProject="src/main/java"/>-->        <!-- 配置mapper对应的java映射 -->        <javaClientGenerator targetPackage="cn.xiaows.app.dao" targetProject="src/main/java" type="XMLMAPPER" />        <table tableName="%"/><!-- 所有表 -->        <!--<table tableName="user" mapperName="UserDao"/>-->        <!--<table tableName="company" mapperName="CompanyDao"/>-->        <!--...-->    </context></generatorConfiguration>

• 生成命令：
  mybatis-generator:generate -f pom.xml

2. 使用main方法生成

• pom.xml

<?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>    <groupId>cn.xiaows</groupId>    <artifactId>app</artifactId>    <version>0.0.1-SNAPSHOT</version>    <name>app</name>    <properties>        <java.version>1.8</java.version>    </properties>    <dependencies>        <!-- mysql -->        <dependency>            <groupId>mysql</groupId>            <artifactId>mysql-connector-java</artifactId>            <version>5.1.46</version>        </dependency>        <!-- mybatis-generator -->        <dependency>            <groupId>org.mybatis.generator</groupId>            <artifactId>mybatis-generator-core</artifactId>            <version>1.3.4</version>            <scope>compile</scope>            <optional>true</optional>        </dependency>                <!--mapper-->        <dependency>            <groupId>tk.mybatis</groupId>            <artifactId>mapper-spring-boot-starter</artifactId>            <version>1.2.4</version>        </dependency>    </dependencies></project>

• MBG.java

package cn.xiaows.app.util;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;import java.io.File;import java.io.InputStream;import java.util.ArrayList;import java.util.List;public class MBG {    public static void main(String[] args) throws Exception {        List<String> warnings = new ArrayList<>();        boolean overwrite = true;        ConfigurationParser cp = new ConfigurationParser(warnings);        Configuration config = cp.parseConfiguration(new File("app/src/main/resources/MBG.xml"));        // Configuration config = cp.parseConfiguration(ClassLoader.getSystemResourceAsStream("generatorConfig.xml"));        DefaultShellCallback callback = new DefaultShellCallback(overwrite);        MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings);        myBatisGenerator.generate(null);        for (String warning : warnings) {            System.out.println(warning);        }    }}

• MBG.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 id="MysqlContext" targetRuntime="MyBatis3Simple" defaultModelType="flat">        <property name="beginningDelimiter" value="`"/>        <property name="endingDelimiter" value="`"/>        <plugin type="tk.mybatis.mapper.generator.MapperPlugin">            <property name="mappers" value="cn.xiaows.app.util.MyMapper"/>        </plugin>        <jdbcConnection driverClass="com.mysql.jdbc.Driver"                        connectionURL="jdbc:mysql://localhost:3306/mydb"                        userId="root"                        password="123456">        </jdbcConnection>        <!-- 对于生成的entity所在包 -->        <javaModelGenerator targetPackage="cn.xiaows.app.entity" targetProject="app/src/main/java"/>        <!-- 对于生成的mapper所在目录 -->        <sqlMapGenerator targetPackage="mapper" targetProject="app/src/main/resources"/>        <!--<sqlMapGenerator targetPackage="cn.xiaows.app.dao" targetProject="app/src/main/java"/>-->        <!-- 配置mapper对应的java映射 -->        <javaClientGenerator targetPackage="cn.xiaows.app.dao" targetProject="app/src/main/java" type="XMLMAPPER" />        <table tableName="%"/>        <!--<table tableName="user" mapperName="UserDao"/>-->        <!--<table tableName="company" mapperName="CompanyDao"/>-->        <!--...-->    </context></generatorConfiguration>

• MyMapper.java

package cn.xiaows.app.util;import tk.mybatis.mapper.common.Mapper;import tk.mybatis.mapper.common.MySqlMapper;/** * 继承自己的MyMapper * 特别注意，该接口不能被扫描到，否则会出错 */public interface MyMapper<T> extends Mapper<T>, MySqlMapper<T> {}