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在SpringBoot项目中利用maven的generate插件

2019-10-21 18:41:53
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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

  1. - mybatis-spring-boot-starter
  2. - mysql-connector-java
  3. - 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/*.xmlspring.datasource.username=rootspring.datasource.password=rootspring.datasource.driver-class-name=com.mysql.jdbc.Driverspring.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>

创建相关目录

SpringBoot,maven,generate

查看插件

SpringBoot,maven,generate

执行

选中maven 下 generator 双击运行

SpringBoot,maven,generate

SpringBootMyBatis 使用

在 service 的实现类上添加 @Service 注解

@Servicepublic 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

@RestControllerpublic 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}

SpringBoot,maven,generate

总结

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