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1:依赖jar包
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.6</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.37</version>
</dependency>
2:启动类
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.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 MybatisGeneratorUtil {
public static void main(String[] args) {
try {
System.out.println("start generator ...");
List<String> warnings = new ArrayList<String>();
boolean overwrite = true;
File configFile = new File(MybatisGeneratorUtil.class.getResource("/generator.xml").getFile());
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);
System.out.println("end generator!");
} catch (IOException e) {
e.printStackTrace();
} catch (XMLParserException e) {
e.printStackTrace();
} catch (InvalidConfigurationException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
3:配置文件
<?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>
<classPathEntry location="C:\Users\Administrator\.m2\repository\mysql\mysql-connector-java\5.1.37\mysql-connector-java-5.1.37.jar" />
<context id="Mysql2Tables" targetRuntime="MyBatis3">
<!-- 去除注释 -->
<commentGenerator>
<property name="suppressDate" value="true"/>
<property name="suppressAllComments" value="true" />
</commentGenerator>
<!-- 数据库连接 -->
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/test2"
userId="root"
password="root">
</jdbcConnection>
<!-- Java类型解析器 -->
<!--
true:使用BigDecimal对应DECIMAL和 NUMERIC数据类型
false:默认,
scale>0;length>18:使用BigDecimal;
scale=0;length[10,18]:使用Long;
scale=0;length[5,9]:使用Integer;
scale=0;length<5:使用Short;
-->
<javaTypeResolver >
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>
<!-- 保存位置并set时使用trim() -->
<javaModelGenerator targetPackage="com.spring.entity" targetProject="src">
<property name="trimStrings" value="true" />
</javaModelGenerator>
<table tableName="%" enableCountByExample="false" enableUpdateByExample="false"
enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false">
</table>
</context>
</generatorConfiguration>
只生成了数据库对应的实体类,并且屏蔽了的注释