所需依赖
<!--mybatis相关依赖--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.6</version> </dependency> <!--mysql-connector--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.39</version> </dependency> <!--spring-jdbc--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>5.0.5.RELEASE</version> </dependency> xml配置文件 名字随便取
<?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="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/myproject?useSSL=true" userId="root" password="123456"> </jdbcConnection> <!-- <jdbcConnection driverClass="oracle.jdbc.OracleDriver" connectionURL="jdbc:oracle:thin:@127.0.0.1:1521:yycg" userId="yycg" password="yycg"> </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> <!-- targetProject:生成PO类的位置 --> <javaModelGenerator targetPackage="com.chao.myproject.bean" targetProject="./src/main/java"> <!--如果是window系统,使用"\"--> <!-- enableSubPackages:是否让schema作为包的后缀 --> <property name="enableSubPackages" value="false" /> <!-- 从数据库返回的值被清理前后的空格 --> <property name="trimStrings" value="true" /> </javaModelGenerator> <!-- targetProject:mapper映射文件生成的位置 --> <sqlMapGenerator targetPackage="com.chao.myproject.mapper" targetProject="./src/main/java"> <!-- enableSubPackages:是否让schema作为包的后缀 --> <property name="enableSubPackages" value="false" /> </sqlMapGenerator> <!-- targetPackage：mapper接口生成的位置 --> <javaClientGenerator type="XMLMAPPER" targetPackage="com.chao.myproject.mapper" targetProject="./src/main/java"> <!-- enableSubPackages:是否让schema作为包的后缀 --> <property name="enableSubPackages" value="false" /> </javaClientGenerator> <!-- 指定数据库表 --> <table schema="" tableName="account"></table> <table schema="" tableName="service"></table> <!-- 有些表的字段需要指定java类型 <table schema="" tableName=""> <columnOverride column="" javaType="" /> </table> --> </context> </generatorConfiguration> 生成代码
import java.io.File; import java.util.ArrayList; import java.util.List; /* I AM A PURE SHEEP * * WHAT YOU WANT TO DO * * FUCK AS YOU WISH */ public class GeneratorSqlmap { public void generator() throws Exception{ List<String> warnings = new ArrayList<String>(); boolean overwrite = true; //指定 逆向工程配置文件 File configFile = new File("/Users/dllo/Desktop/GitDemo/GitAAAA/ReverseDemo/src/main/resources/reverse.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); } public static void main(String[] args) throws Exception { try { GeneratorSqlmap generatorSqlmap = new GeneratorSqlmap(); generatorSqlmap.generator(); } catch (Exception e) { e.printStackTrace(); } } } 可能会报的错误:
Table name pattern can not be NULL or empty.
解决方案
1.产生错误的原因: 工程引用了mysql-connector-java-6.*.jar。
解决方法:mysql-connector-java-5.1.39.jar,或更低版本
2.jdbc:mysql:///?nullNamePatternMatchesAll=true
文章来源: 逆向工程