使用IDEA springboot 如何通过mybatis-generator自动生成mapper dao model

第一步：在maven工程当中的resource下面，创建generatorConfig.xml文件。

务必注意创建的位置！！！

<?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="C:\Users\SAM\.m2\repository\mysql\mysql-connector-java\5.1.46\mysql-connector-java-5.1.46.jar"/>

<context id="DB2Tables" targetRuntime="MyBatis3">

<commentGenerator>

<property name="suppressDate" value="true"/>

<property name="suppressAllComments" value="true"/>

</commentGenerator>

<jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/db4mds" userId="root" password="">

</jdbcConnection>

<javaTypeResolver>

<property name="forceBigDecimals" value="false"/>

</javaTypeResolver>

<javaModelGenerator targetPackage="com.MedicalDiagnosisSystem.model" targetProject="src">

<property name="enableSubPackages" value="true"/>

<property name="trimStrings" value="true"/>

</javaModelGenerator>

<sqlMapGenerator targetPackage="com.MedicalDiagnosisSystem.mapping" targetProject="src">

<property name="enableSubPackages" value="true"/>

</sqlMapGenerator>

<javaClientGenerator type="XMLMAPPER" targetPackage="com.MedicalDiagnosisSystem.dao" targetProject="src">

<property name="enableSubPackages" value="true"/>

</javaClientGenerator>

<table tableName="tbl_user" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>

</context>

</generatorConfiguration>

　　这里需要注意的几个问题：

1.location="C:\Users\SAM\.m2\repository\mysql\mysql-connector-java\5.1.46\mysql-connector-java-5.1.46.jar

需要的是连接数据库的jar包。一般在maven的工程下面的扩展包

第二步配置pom文件，在plugins节点下面增加这个plugin节点内容。

<plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.7</version>
                <configuration>
                    <!--配置文件的位置-->
                    <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>1.3.7</version>
                    </dependency>
                </dependencies>
            </plugin>

第三步，配置好插件即可在右侧打开maven工程