使用mybatis-generator-core实现逆向工程

1. 添加jar包

   • lib/mybatis-generator-core-1.3.2.jar
   • mybatis-3.4.4.jar
   • mysql-connector-java-5.1.44.jar或者mysql-connector-java-8.0.13.jar

2. 添加generatorConfig.xml配置

   • <?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>
     
         <!-- 数据库驱动包位置 -->
         <!-- <classPathEntry location="D:\software\lib\mysql-connector-java-5.1.21.jar"
             /> -->
         <!-- <classPathEntry location="C:\oracle\product\10.2.0\db_1\jdbc\lib\ojdbc14.jar"
             /> -->
         <context id="DB2Tables" targetRuntime="MyBatis3">
             <!-- 序列化model -->
             <plugin type="org.mybatis.generator.plugins.SerializablePlugin"/>
             <commentGenerator>
                 <property name="suppressAllComments" value="true"/>
             </commentGenerator>
             <!-- 数据库链接URL、用户名、密码 -->
             <!-- <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                             connectionURL="jdbc:mysql://localhost:3306/school?characterEncoding=utf8&useSSL=false&serverTimezone=UTC&rewriteBatchedStatements=true" userId="root"
                             password="123456">
             </jdbcConnection> -->
             <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                             connectionURL="jdbc:mysql://localhost:3307/school?characterEncoding=utf8&amp;useSSL=false&amp;serverTimezone=UTC&amp;rewriteBatchedStatements=true"
                             userId="root"
                             password="970809">
             </jdbcConnection>
     
             <!-- <jdbcConnection driverClass="oracle.jdbc.driver.OracleDriver" connectionURL="jdbc:oracle:thin:@localhost:1521:orcl"
                 userId="scott" password="tiger"> </jdbcConnection> -->
             <javaTypeResolver>
                 <property name="forceBigDecimals" value="false"/>
             </javaTypeResolver>
             <!-- 生成模型的包名和位置 -->
             <javaModelGenerator targetPackage="com.pojo"
                                 targetProject=".\src">
                 <property name="enableSubPackages" value="false"/>
                 <property name="trimStrings" value="true"/>
             </javaModelGenerator>
             <!-- 生成的映射文件包名和位置 -->
             <sqlMapGenerator targetPackage="com.mapper"
                              targetProject=".\src">
                 <property name="enableSubPackages" value="true"/>
             </sqlMapGenerator>
             <!-- 生成DAO的包名和位置 -->
             <javaClientGenerator type="XMLMAPPER"
                                  targetPackage="com.mapper" targetProject=".\src">
                 <property name="enableSubPackages" value="true"/>
             </javaClientGenerator>
             <!-- 要生成那些表(更改tableName和domainObjectName就可以) -->
             <table tableName="student" schema=""/>
             <table tableName="subject" schema=""/>
             <table tableName="score" schema=""/>
     
         </context>
     </generatorConfiguration>
     

3. 添加测试类

   • import java.io.File;
     import java.io.IOException;
     import java.sql.SQLException;
     import java.util.ArrayList;
     import java.util.List;
     
     import org.mybatis.generator.api.MyBatisGenerator;
     import org.mybatis.generator.api.ShellCallback;
     import org.mybatis.generator.config.Configuration;
     import org.mybatis.generator.config.xml.ConfigurationParser;
     import org.mybatis.generator.exception.InvalidConfigurationException;
     import org.mybatis.generator.exception.XMLParserException;
     import org.mybatis.generator.internal.DefaultShellCallback;
     
     public class GenerateUtils {
     
         public static void main(String[] args) throws IOException, XMLParserException, InvalidConfigurationException, SQLException, InterruptedException {
             File f = new File("target/classes/generatorConfig.xml");
     
             List<String> warnings = new ArrayList<String>();
             ConfigurationParser parser = new ConfigurationParser(warnings);
     
             Configuration configuration = parser.parseConfiguration(f);
     
             boolean overwrite = true;
             ShellCallback shellCallback = new DefaultShellCallback(overwrite);
             MyBatisGenerator generator = new MyBatisGenerator(configuration, shellCallback, warnings);
     
             generator.generate(null);
     
             System.out.println("OK!");
         }
     }