springboot於mybaits一起使用時,需要寫很多mapper.java,mapper.xml,entity.java文件,若自己手動敲代碼,不僅繁瑣,還容易寫錯;
springboot中有一個自動生成功能,使用起來很方便
分爲三步,1.配置pom.xml;2.配置generatorConfig.xml;3.執行生成操作
1.配置pom.xml
在<project>下配置文件
<build>
<plugins>
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.2</version>
<configuration>
<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>
其中,
2.在1.中對應的地方““src/main/resources/generatorConfig.xml””下,配置generatorConfig.xml文件;
<?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="D:\file\maven_file\mysql\mysql-connector-java\8.0.13\mysql-connector-java-8.0.13.jar" />
<context id="context1">
<!-- 是否生成註釋 -->
<commentGenerator>
<property name="suppressDate" value="true"/>
<property name="suppressAllComments" value="true"/>
</commentGenerator>
<!-- 數據庫連接 -->
<jdbcConnection driverClass="com.mysql.cj.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/test2?serverTimezone=GMT%2B8"
userId="root" password="root" />
<!-- 生成的包名和工程名 -->
<javaModelGenerator targetPackage="com.example.just_today.dto"
targetProject="src/main/java"/>
<!-- xml映射文件 -->
<sqlMapGenerator targetPackage="mapper"
targetProject="src/main/resources" />
<!-- mapper接口 -->
<javaClientGenerator targetPackage="com.example.just_today.mapper"
targetProject="src/main/java" type="XMLMAPPER" />
<!-- 數據庫表 以及是否生成example-->
<table tableName="user_info" domainObjectName="UserInfo"
enableCountByExample="true" enableUpdateByExample="true" enableDeleteByExample="true"
enableSelectByExample="true" selectByExampleQueryId="true" enableInsert="true"
>
<!-- 設置別名 -->
<!--
<columnOverride column="ds_id" property="dsId" />
<columnOverride column="ds_name" property="dsName" />
<columnOverride column="dt_name" property="dtName" />
<columnOverride column="login_name" property="loginName" />
<columnOverride column="login_pwd" property="loginPwd" />
-->
</table>
</context>
</generatorConfiguration>
按照自己項目的路徑配置即可;記得下載
<classPathEntry location="D:\file\maven_file\mysql\mysql-connector-java\8.0.13\mysql-connector-java-8.0.13.jar" />文件
3.執行生成文件
在右側雙擊mybatis-generator:generate即可,不一會,在指定路徑,即可生成相應的文件