springboot+ mybatis + oracle 代码生成器代码
springboot + oracle + mybatis 代码生成器代码
创建一个Spring Boot应用,使用Oracle数据库和MyBatis框架,并且包含代码生成器,通常需要以下几个步骤:
- 设置Maven依赖:
在pom.xml
文件中添加Spring Boot Starter Web,MyBatis,Oracle JDBC Driver和一个代码生成器插件如MyBatis Generator。
<dependencies><!-- Spring Boot Starter Web --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!-- MyBatis --><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>2.2.3</version></dependency><!-- Oracle JDBC Driver --><dependency><groupId>com.oracle.database.jdbc</groupId><artifactId>ojdbc8</artifactId><version>19.3.0.0</version></dependency>
</dependencies><!-- MyBatis Generator Plugin -->
<build><plugins><plugin><groupId>org.mybatis.generator</groupId><artifactId>mybatis-generator-maven-plugin</artifactId><version>1.4.1</version><configuration><verbose>true</verbose><overwrite>true</overwrite></configuration><dependencies><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.26</version></dependency><!-- Add ojdbc8 here instead of mysql-connector-java --><dependency><groupId>com.oracle.database.jdbc</groupId><artifactId>ojdbc8</artifactId><version>19.3.0.0</version></dependency></dependencies></plugin></plugins>
</build>
- 配置MyBatis Generator:
创建src/main/resources/generatorConfig.xml
文件,用于配置代码生成器。
<?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="src/main/resources"/><context id="dbContext" targetRuntime="MyBatis3Simple"><jdbcConnection driverClass="oracle.jdbc.OracleDriver"connectionURL="jdbc:oracle:thin:@localhost:1521:orcl"userId="your_username" password="your_password"/><javaTypeResolver><property name="forceBigDecimals" value="false"/></javaTypeResolver><javaModelGenerator targetPackage="com.example.model" targetProject="src/main/java"><property name="enableSubPackages" value="true"/><property name="trimStrings" value="true"/></javaModelGenerator><sqlMapGenerator targetPackage="com.example.mapper" targetProject="src/main/resources"><property name="enableSubPackages" value="true"/></sqlMapGenerator><javaClientGenerator type="XMLMAPPER" targetPackage="com.example.mapper" targetProject="src/main/java"><property name="enableSubPackages" value="true"/></javaClientGenerator><table tableName="your_table_name"/></context>
</generatorConfiguration>
- 运行代码生成器:
执行Maven命令来生成代码。
mvn mybatis-generator:generate
- Spring Boot配置:
在application.properties
中配置数据源和MyBatis。
spring.datasource.url=jdbc:oracle:thin:@localhost:1521:orcl
spring.datasource.username=your_username
spring.datasource.password=your_password
spring.datasource.driver-class-name=oracle.jdbc.OracleDrivermybatis.type-aliases-package=com.example.model
mybatis.mapper-locations=classpath:com/example/mapper/*.xml
- 创建Mapper接口:
在com.example.mapper
包下创建Mapper接口,MyBatis Generator会自动填充方法。
请注意,上述代码和配置需要根据你的具体项目结构和需求进行适当的调整。例如,表名、数据库连接信息、包名等都需要替换成你自己的信息。如果你需要更详细的代码示例或有其他特定需求,请告诉我,我可以提供更具体的帮助。
6. 注意需要改的地方:
注释这个
<dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.26</version></dependency>
把这个替换为 自己项目用的数据源依赖
<dependency><groupId>com.oracle.database.jdbc</groupId><artifactId>ojdbc8</artifactId><version>19.3.0.0</version></dependency>