文/朱季謙
1.環境：SpringBoot
2.在pom.xml文件里引入相關依賴：
1 <plugin>2 <groupId>org.mybatis.generator</groupId>3 <artifactId>mybatis-generator-maven-plugin</artifactId>4 <version>1.3.6</version>5 <configuration>6 <verbose>true</verbose>7 <overwrite>true</overwrite>8 </configuration>9 <dependencies> 10 <dependency> 11 <groupId>mysql</groupId> 12 <artifactId>mysql-connector-java</artifactId> 13 <version>5.1.36</version> 14 </dependency> 15 </dependencies> 16 17 </plugin> 18 19 20 21 <dependency> 22 <groupId>org.mybatis.generator</groupId> 23 <artifactId>mybatis-generator-core</artifactId> 24 <version>1.3.6</version> 25 </dependency>
3.創建generatorConfig.xml文件
1 <?xml version="1.0" encoding="UTF-8"?>2 3 <!DOCTYPE generatorConfiguration4 PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"5 "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">6 7 <generatorConfiguration>8 <context id="testTables" targetRuntime="MyBatis3">9 <commentGenerator> 10 <!-- 是否去除自動生成的注釋 true：是 ： false:否 --> 11 <property name="suppressAllComments" value="true" /> 12 </commentGenerator> 13 <!--數據庫連接的信息：驅動類、連接地址、用戶名、密碼 --> 14 <jdbcConnection driverClass="com.mysql.jdbc.Driver" 15 connectionURL="jdbc:mysql://127.0.0.1:3306/example?useUnicode=true&characterEncoding=utf8" 16 userId="root" 17 password="123456"> 18 </jdbcConnection> 19 20 <!-- 默認false，把JDBC DECIMAL 和 NUMERIC 類型解析為 Integer，為 true時把JDBC DECIMAL 21 和 NUMERIC 類型解析為java.math.BigDecimal --> 22 <javaTypeResolver> 23 <property name="forceBigDecimals" value="false" /> 24 </javaTypeResolver> 25 26 <!-- targetProject:生成PO類的位置 --> 27 <javaModelGenerator targetPackage="com.zhu.text.domain" 28 targetProject=".\src\main\java"> 29 <!-- enableSubPackages:是否讓schema作為包的后綴 --> 30 <property name="enableSubPackages" value="false" /> 31 <!-- 從數據庫返回的值被清理前后的空格 --> 32 <property name="trimStrings" value="true" /> 33 </javaModelGenerator> 34 <!-- targetProject:mapper映射文件生成的位置 --> 35 <sqlMapGenerator targetPackage="com.zhu.text.dao" 36 targetProject=".\src\main\java"> 37 <!-- enableSubPackages:是否讓schema作為包的后綴 --> 38 <property name="enableSubPackages" value="false" /> 39 </sqlMapGenerator> 40 <!-- targetPackage：mapper接口生成的位置 --> 41 <javaClientGenerator type="XMLMAPPER" 42 targetPackage="com.zhu.text.dao" targetProject=".\src\main\java"> 43 <!-- enableSubPackages:是否讓schema作為包的后綴 --> 44 <property name="enableSubPackages" value="false" /> 45 </javaClientGenerator> 46 <!-- 指定數據庫表 --> 47 <table tableName="text_product" domainObjectName="Product"></table> 48 </context> 49 </generatorConfiguration>
4.創建main類
1 import java.io.File;2 import java.util.ArrayList;3 import java.util.List;4 import org.mybatis.generator.api.MyBatisGenerator;5 import org.mybatis.generator.config.Configuration;6 import org.mybatis.generator.config.xml.ConfigurationParser;7 import org.mybatis.generator.internal.DefaultShellCallback;8 9 public class MBGenerator {
10 public static void main(String[] args) throws Exception{
11
12 List<String> warnings = new ArrayList<String>();
13 boolean overwrite = true;
14 File configFile = new File("例：generatorConfig.xml的存放路徑");
15 ConfigurationParser cp = new ConfigurationParser(warnings);
16 Configuration config = cp.parseConfiguration(configFile);
17 DefaultShellCallback callback = new DefaultShellCallback(overwrite);
18 MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings);
19 myBatisGenerator.generate(null);
20 }
21 }
5.執行maven方法里的mybatis-generator:generate
完成以上步驟，就可以自定生成需要的xml文件與類以及對應的java bean類。
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