mybatis-generator 自動生成javaBean及mapper
阿新 • • 發佈:2019-01-25
1、搭建工程,引入jar包依賴
<!-- mysql --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.44</version> </dependency> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.3.2</version> </dependency>
2、配置檔案generatorConfig.xml放在src/main/resources目錄下,檔名不要改
<?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"> <!-- 在專案根目錄下(pom.xml同級)開啟命令列工具:mvn mybatis-generator:generate --> <generatorConfiguration> <!-- 引入配置檔案 --> <properties resource="application.properties"/> <!-- 指定資料連線驅動jar地址 --> <!-- 配置成你本地的mysql-connector-java jar --> <classPathEntry location="D:\maven\test\mysql\mysql-connector-java\5.1.44\mysql-connector-java-5.1.44.jar" /> <context id="baseTradeTables" targetRuntime="MyBatis3"> <!-- 註釋 --> <commentGenerator type="mybatis.MyCommentGenerator"> <property name="suppressAllComments" value="false"/><!-- 是否取消註釋 --> <property name="suppressDate" value="false" /> <!-- 是否生成註釋代時間戳--> </commentGenerator> <!-- 資料庫地址、使用者名稱、密碼 --> <jdbcConnection driverClass="${jdbc.driver}" connectionURL="${jdbc.url}" userId="${jdbc.username}" password="${jdbc.password}"> </jdbcConnection> <!-- 型別轉換 --> <javaTypeResolver> <!-- 是否使用bigDecimal, false可自動轉化以下型別(Long, Integer, Short, etc.) --> <property name="forceBigDecimals" value="true"/> </javaTypeResolver> <!-- 後臺生成 --> <!-- model --> <javaModelGenerator targetPackage="com.cmcc.open.base.po" targetProject="src/main/java"> <property name="enableSubPackages" value="true" /> <!-- 是否針對string型別的欄位在set的時候進行trim呼叫 --> <property name="trimStrings" value="false"/> </javaModelGenerator> <!-- Mapper對映 --> <sqlMapGenerator targetPackage="mybatis" targetProject="src/main/resources"> <!-- 是否在當前路徑下新加一層schema,eg:fase路徑com.oop.eksp.user.model, true:com.oop.eksp.user.model.[schemaName] --> <property name="enableSubPackages" value="true" /> </sqlMapGenerator> <!-- Mapper介面 --> <javaClientGenerator type="XMLMAPPER" targetPackage="com.cmcc.open.base.dao" targetProject="src/main/java"> <property name="enableSubPackages" value="true" /> </javaClientGenerator> <!-- 表 --> <table tableName="mas_template" domainObjectName="MasTemplate" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"> <generatedKey column="id" sqlStatement="MySql" identity="true"/> </table> </context> </generatorConfiguration>
3、資料庫配置檔案application.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://12331
jdbc.username=121
jdbc.password=121
4、定製類MyCommentGenerator實現介面CommentGenerator(可以將資料庫欄位註釋對應寫到實體類的屬性上面)
5、main方法
public static void main(String[] args) { try { List<String> warnings = new ArrayList<String>(); boolean overwrite = true; ClassLoader classloader = Thread.currentThread().getContextClassLoader(); InputStream is = classloader.getResourceAsStream("generatorConfig.xml"); ConfigurationParser cp = new ConfigurationParser(warnings); Configuration config = cp.parseConfiguration(is); DefaultShellCallback callback = new DefaultShellCallback(overwrite); MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings); myBatisGenerator.generate(null); } catch (SQLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } catch (InterruptedException e) { e.printStackTrace(); } catch (InvalidConfigurationException e) { e.printStackTrace(); } catch (XMLParserException e) { e.printStackTrace(); }