springboot2.1.7整合mybatis
Posted 一步一高
tags:
篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了springboot2.1.7整合mybatis相关的知识,希望对你有一定的参考价值。
1.先创建springboot项目,然后会有如下依赖(aop是自己加上去的)
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId> </dependency>
2.然后添加mysql驱动包
<dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.46</version> </dependency>
3.还要添加druid数据连接池(其他连接池也行,建议使用druid)
<dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.9</version> </dependency>
4.在application.properties配置文件中添加配置
#(默认端口号,可不配置) server.port=8080
#连接mysql和连接池 spring.datasource.type=com.alibaba.druid.pool.DruidDataSource spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=UTC spring.datasource.username=root spring.datasource.password=root
#配置mysql数据库字段和实体属性映射 mybatis.configuration.map-underscore-to-camel-case=true
#添加sql日志(debug级别-level后面为你mapper接口的路径) logging.level.com.example.mybatis.mapper=debug
#如果mapper.xml文件在resources下则需要此配置(classpath后面的mapper为存放xml文件的包) mybatis.mapper-locations=classpath:mapper/*.xml
#如果Mapper的xml映射文件在src/main/java包下时,需要此配置 <resources> <resource> <directory>src/main/java</directory> <includes> <include>**/*.xml</include> </includes> </resource> <resource> <directory>src/main/resources</directory> </resource> </resources>
5.配置完成之后,我们再添加一个mybatis-generator插件用来生成代码,我添加在了如下位置,
打开generatorConfig.xml,如下:
<?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> <!--指定maven仓库中jdbc驱动jar包的位置--> <classPathEntry location="E:\\apache-maven-3.2.5\\repository\\mysql\\mysql-connector-java\\8.0.13\\mysql-connector-java-8.0.13.jar"/> <!-- 一个数据库一个context --> <context id="DB2Tables" targetRuntime="MyBatis3"> <commentGenerator> <property name="suppressDate" value="true"/><!-- 是否生成注释代时间戳 --> <property name="suppressAllComments" value="true"/><!-- 是否去除自动生成的注释 true是 false:否 --> </commentGenerator> <!--数据库链接URL,用户名、密码 --> <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://127.0.0.1/test?serverTimezone=GMT" userId="root" password="root"> <property name="nullCatalogMeansCurrent" value="true" /> </jdbcConnection> <!-- 类型转换 --> <javaTypeResolver> <!-- 默认false,把JDBC DECIMAL和NUMERIC类型解析为 Integer;为true时则解析为java.math.BigDecimal --> <property name="forceBigDecimals" value="false"/> </javaTypeResolver> <!-- 生成model的包名和位置--> <javaModelGenerator targetPackage="com.example.mybatis.model" targetProject="src/main/java"> <property name="enableSubPackages" value="true"/> <property name="trimStrings" value="true"/> </javaModelGenerator> <!-- 生成Mapper映射XML文件位置--> <sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources"> <property name="enableSubPackages" value="true"/> </sqlMapGenerator> <!-- 生成Mapper接口文件位置--> <javaClientGenerator type="XMLMAPPER" targetPackage="com.example.mybatis.mapper" targetProject="src/main/java"> <property name="enableSubPackages" value="true"/> </javaClientGenerator> <!-- 要生成的表 tableName是数据库中的表名或视图名 domainObjectName是实体类名--> <table tableName="sys_permission" domainObjectName="Permission" enableCountByExample="true" enableUpdateByExample="true" enableDeleteByExample="true" enableSelectByExample="true" selectByExampleQueryId="true"> </table> </context> </generatorConfiguration>
6.在pom的plugins标签下添加插件依赖
<plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> #版本 <version>1.3.2</version> <configuration> 此位置是上面截图的位置(你放在哪里就写在哪里) <configurationFile>D:\\mybatis\\src\\main\\resources\\generate\\generatorConfig.xml</configurationFile> <verbose>true</verbose> <overwrite>true</overwrite> </configuration> <executions> <execution> <id>Generate MyBatis Artifacts</id> <!--maven生成jar包时 避免运行generator插件(这个必须要加上,否则mapper接口和xml会在重新生成)--> <phase>deploy</phase> <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>
7.双击图中白框部分,就会生成对应的文件
以上是关于springboot2.1.7整合mybatis的主要内容,如果未能解决你的问题,请参考以下文章
spring boot 整合mybatis:org.apache.ibatis.binding.BindingException: Invalid bound statement (not found