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使用maven 插件 generate生成MyBatis相关文件
在项目中增加 maven 依赖
- mybatis-spring-boot-starter
- mysql-connector-java
- mybatis-generator-maven-plugin 插件 自动读取 resources 下的generatorConfig.xml 文件
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.wangSpringBoot</groupId> <artifactId>demo</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>demo</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.3.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-configuration-processor</artifactId> <optional>true</optional> </dependency> <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok --> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.16.18</version> <scope>provided</scope> </dependency> <!--热部署--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <optional>true</optional> </dependency> <!--test--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <!--MyBatis--> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.1</version> </dependency> <!--Mysql JDBC驱动--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <fork>true</fork> </configuration> </plugin> <plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.7</version> <executions> <execution> <id>Generate MyBatis Artifacts</id> <goals> <goal>generate</goal> </goals> </execution> </executions> <dependencies> <dependency> <groupId>org.hsqldb</groupId> <artifactId>hsqldb</artifactId> <version>2.3.4</version> </dependency> </dependencies> </plugin> </plugins> <resources> <resource> <directory>src/main/java</directory> <includes> <include>**/*.xml</include> </includes> </resource> <resource> <directory>src/main/resources</directory> <includes> <include>**/*.*</include> </includes> </resource> <resource> <directory>src/main/webapp</directory> <targetPath>META-INF/resources</targetPath> <includes> <include>**/*.*</include> </includes> </resource> </resources> </build> </project>
SpringBoot 项目中application.properties 配置
mybatis.mapper-locations 用来指定mapper 存放路径
spring.datasource.username 用来指定 用户名
spring.datasource.password 用来指定密码
spring.datasource.driver-class-name 用来指定链接驱动
spring.datasource.url 用来指定链接路由地址
mybatis.mapper-locations=classpath:com/wangspringboot/demo/mapper/*.xml spring.datasource.username=root spring.datasource.password=root spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.url=jdbc:mysql://localhost:3306/wt?useUnicode=true&characterEncoding=utf8&useSSL=false
resources 下配置 generatorConfig.xml
此项内容为直接修改相关配置即可
<?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> <!-- 本地数据库驱动程序jar包的全路径 --> <classPathEntry location="D:\Program Files\MavenRepository\mysql\mysql-connector-java\5.1.46\mysql-connector-java-5.1.46.jar"/> <context id="context" targetRuntime="MyBatis3"> <commentGenerator> <property name="suppressAllComments" value="false"/> <property name="suppressDate" value="true"/> </commentGenerator> <!-- 数据库的相关配置 --> <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/wt" userId="root" password="root"/> <javaTypeResolver> <property name="forceBigDecimals" value="false"/> </javaTypeResolver> <!-- 实体类生成的位置 --> <javaModelGenerator targetPackage="com.wangspringboot.demo.model" targetProject="src/main/java"> <property name="enableSubPackages" value="false"/> <property name="trimStrings" value="true"/> </javaModelGenerator> <!-- *Mapper.xml 文件的位置 --> <sqlMapGenerator targetPackage="com.wangspringboot.demo.mapper" targetProject="src/main/java"> <property name="enableSubPackages" value="false"/> </sqlMapGenerator> <!-- Mapper 接口文件的位置 --> <javaClientGenerator targetPackage="com.wangspringboot.demo.mapper" targetProject="src/main/java" type="XMLMAPPER"> <property name="enableSubPackages" value="false"/> </javaClientGenerator> <!-- 相关表的配置--> <table tableName="t" domainObjectName="Tq" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" /> </context> </generatorConfiguration>
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选中maven 下 generator 双击运行
SpringBootMyBatis 使用
在 service 的实现类上添加 @Service 注解
@Service
public class TqServiceImpl implements TqService {
@Autowired
private TqMapper tqmapper;
@Override
public Tq insTq() {
Tq t = new Tq();
t.setZ(12.0);
t.setY(12.0);
t.setX(12.0);
tqmapper.insert(t);
return t;
}
}
相关调用
@RestController
public class MyBatisController {
@Autowired
private TqService tqService;
@GetMapping("/boot/tq")
public Object tq(){
return tqService.insTq();
}
}
启动SpringBoot WEB项目后 访问
{
x: 12,
y: 12,
z: 12
}
