1.添加pom文件
<build> <plugins> <plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.5</version> <configuration> <!--配置文件的位置--> <configurationFile>src/main/resources/generatorConfig.xml</configurationFile> <verbose>true</verbose> <overwrite>true</overwrite> </configuration> <executions> <execution> <id>Generate MyBatis Artifacts</id> <goals> <goal>generate</goal> </goals> </execution> </executions> <dependencies> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.3.2</version> </dependency> </dependencies> </plugin> </plugins> </build>
2.在resource中添加文件generatorConfig.xml
<?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> <!-- 是否去除自動生成的注釋 true:是 : false:否 --> <property name="suppressAllComments" value="true" /> </commentGenerator> <!--數據庫連接的信息:驅動類、連接地址、用戶名、密碼 --> <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/mybatis" userId="root" password="123qwe"> </jdbcConnection> <!-- <jdbcConnection driverClass="oracle.jdbc.OracleDriver" connectionURL="jdbc:oracle:thin:@127.0.0.1:1521:yycg" userId="yycg" password="yycg"> </jdbcConnection> --> <!-- 默認false,把JDBC DECIMAL 和 NUMERIC 類型解析為 Integer,為 true時把JDBC DECIMAL 和 NUMERIC 類型解析為java.math.BigDecimal --> <javaTypeResolver> <property name="forceBigDecimals" value="false" /> </javaTypeResolver> <!-- targetProject:生成PO類的位置 --> <javaModelGenerator targetPackage="po" targetProject="src"> <!-- enableSubPackages:是否讓schema作為包的后綴 --> <property name="enableSubPackages" value="false" /> <!-- 從數據庫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="mapper" targetProject="src"> <!-- enableSubPackages:是否讓schema作為包的后綴 --> <property name="enableSubPackages" value="false" /> </sqlMapGenerator> <!-- targetPackage:mapper接口生成的位置 --> <javaClientGenerator type="XMLMAPPER" targetPackage="mapper" targetProject="src"> <!-- enableSubPackages:是否讓schema作為包的后綴 --> <property name="enableSubPackages" value="false" /> </javaClientGenerator> <!-- 指定數據庫表 --> <table tableName="items"></table> <table tableName="orders"></table> <table tableName="orderdetail"></table> <!-- <table schema="" tableName="sys_user"></table> <table schema="" tableName="sys_role"></table> <table schema="" tableName="sys_permission"></table> <table schema="" tableName="sys_user_role"></table> <table schema="" tableName="sys_role_permission"></table> --> <!-- 有些表的字段需要指定java類型 <table schema="" tableName=""> <columnOverride column="" javaType="" /> </table> --> </context> </generatorConfiguration>
<?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"> <!-- 配置Run As Maven build : Goals 參數 : mybatis-generator:generate -Dmybatis.generator.overwrite=true --> <!-- 配置 tableName,使用 Run As Maven build 生成 dao domain 層 --> <generatorConfiguration> <!-- 配置文件路徑 --> <!--<properties url="${mybatis.generator.generatorConfig.properties}"/>--> <!--數據庫驅動包路徑 --> <classPathEntry location="/Users/wangman/.m2/repository/mysql/mysql-connector-java/5.1.18/mysql-connector-java-5.1.18.jar"/> <!-- context:生成一組對象的環境 id:必選,上下文id,用於在生成錯誤時提示 defaultModelType:指定生成對象的樣式 1,conditional:類似hierarchical; 2,flat:所有內容(主鍵,blob)等全部生成在一個對象中; 3,hierarchical:主鍵生成一個XXKey對象(key class),Blob等單獨生成一個對象,其他簡單屬性在一個對象中(record class) targetRuntime: 1,MyBatis3:默認的值,生成基於MyBatis3.x以上版本的內容,包括XXXBySample; 2,MyBatis3Simple:類似MyBatis3,只是不生成XXXBySample; introspectedColumnImpl:類全限定名,用於擴展MBG --> <context id="DB2Tables" targetRuntime="MyBatis3" defaultModelType="flat"> <!--關閉注釋 --> <commentGenerator> <property name="suppressDate" value="true"/> <property name="suppressAllComments" value="true"/> <!-- 自動識別數據庫關鍵字,默認false,如果設置為true,根據SqlReservedWords中定義的關鍵字列表; 一般保留默認值,遇到數據庫關鍵字(Java關鍵字),使用columnOverride覆蓋 --> <property name="autoDelimitKeywords" value="false"/> <!-- 生成的Java文件的編碼 --> <property name="javaFileEncoding" value="UTF-8"/> <!-- 格式化java代碼 --> <property name="javaFormatter" value="org.mybatis.generator.api.dom.DefaultJavaFormatter"/> <!-- 格式化XML代碼 --> <property name="xmlFormatter" value="org.mybatis.generator.api.dom.DefaultXmlFormatter"/> <!-- beginningDelimiter和endingDelimiter:指明數據庫的用於標記數據庫對象名的符號,比如ORACLE就是雙引號,MYSQL默認是`反引號; --> <property name="beginningDelimiter" value="`"/> <property name="endingDelimiter" value="`"/> </commentGenerator> <!--數據庫連接信息 --> <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/o2o" userId="root" password="root"> </jdbcConnection> <javaTypeResolver> <property name="forceBigDecimals" value="false"/> </javaTypeResolver> <!--生成的model 包路徑 --> <javaModelGenerator targetPackage="com.cafintech.business.partial.payment.model" targetProject="src/main/java"> <property name="enableSubPackages" value="ture"/> <property name="trimStrings" value="true"/> </javaModelGenerator> <!--生成xml mapper文件 路徑 --> <sqlMapGenerator targetPackage="resources.config.mappers" targetProject="src/main/"> <property name="enableSubPackages" value="ture"/> </sqlMapGenerator> <!-- 生成的Dao接口 的包路徑 --> <javaClientGenerator type="XMLMAPPER" targetPackage="com.cafintech.business.partial.payment.dao" targetProject="src/main/java"> <property name="enableSubPackages" value="ture"/> </javaClientGenerator> <table tableName="ca_partial_payment_service" domainObjectName="PartialPayment" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"> </table> </context> </generatorConfiguration>
注:需要修改的地方
javaModelGenerator,生成PO類的位置
sqlMapGenerator,mapper映射文件生成的位置
javaClientGenerator,mapper接口生成的位置
table,其tableName屬性對應數據庫中相應表