通用mybatis插件学习(1)：通用mybatis插件集成

一个减少百分之五十数据库操作代码的通用mybatis插件使用

github地址

https://github.com/abel533/Mapper

首先添加依赖

<dependency>
  <groupId>tk.mybatis</groupId>
  <artifactId>mapper-spring-boot-starter</artifactId>
  <version>2.1.5</version>
</dependency>
写配置没有配置
添加代码生成器

<plugin>
    <groupId>org.mybatis.generator</groupId>
    <artifactId>mybatis-generator-maven-plugin</artifactId>
    <version>1.3.6</version>
    <configuration>
        <configurationFile>
            ${basedir}/src/main/resources/generator/generatorConfig.xml
        </configurationFile>
        <overwrite>true</overwrite>
        <verbose>true</verbose>
    </configuration>
    <dependencies>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.19</version>
        </dependency>
        <dependency>
            <groupId>tk.mybatis</groupId>
            <artifactId>mapper</artifactId>
            <version>4.1.5</version>
        </dependency>
    </dependencies>
</plugin>
添加配置文件，首先在resource文件夹下建立一个generator文件夹然后添加一个generatorConfig.xml文件内容如下

<!DOCTYPE generatorConfiguration
        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">

<generatorConfiguration>
    <properties resource="generator/config.properties"/>

    <context id="Mysql" targetRuntime="MyBatis3Simple" defaultModelType="flat">
        <property name="beginningDelimiter" value="`"/>
        <property name="endingDelimiter" value="`"/>

        <plugin type="tk.mybatis.mapper.generator.MapperPlugin">
            <property name="mappers" value="tk.mybatis.mapper.common.Mapper"/>
            <property name="caseSensitive" value="true"/>
        </plugin>

        <jdbcConnection driverClass="${jdbc.driverClass}"
                        connectionURL="${jdbc.url}"
                        userId="${jdbc.user}"
                        password="${jdbc.password}">
        </jdbcConnection>

        <!--实体-->
        <javaModelGenerator targetPackage="com.fj.xiaofeiyang.pay.api.domain.entity.${moduleName}"
                            targetProject="src/main/java"/>
        <!--mapper.xml-->
        <sqlMapGenerator targetPackage="com.fj.xiaofeiyang.pay.api.dao.${moduleName}"
                         targetProject="src/main/resources"/>
        <!--mapper接口-->
        <javaClientGenerator targetPackage="com.fj.xiaofeiyang.pay.api.dao.${moduleName}"
                             targetProject="src/main/java"
                             type="XMLMAPPER"/>

        <table tableName="${tableName}">
            <generatedKey column="id" sqlStatement="JDBC"/>
        </table>
    </context>
</generatorConfiguration>
再在该文件夹下建立一个config.properties文件

jdbc.driverClass=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/pay?serverTimezone=Hongkong
jdbc.user=root
jdbc.password=123

#模块名称
moduleName=pay
#表名
tableName=mall_pay

然后在maven插件中点击mybatis-generator：generate就可以生成实体，mapper和xml，生成路径在generatorConfig.xml中配置。
测试代码如下

@RestController
@AllArgsConstructor
@Slf4j
public class TestController {
    @Resource
    private MallPayMapper mallPayMapper;
    @GetMapping("/test")
    public MallPay testInsertMallPay(){
        MallPay mallPay = new MallPay();
        mallPay.setCreateTime(new Date());
        mallPay.setIssuccess((byte)1);
        mallPay.setOrderNumber("1234567890");
        mallPay.setPayAmount(100l);
        mallPay.setUpdateTime(new Date());
        mallPayMapper.insertSelective(mallPay);
        return mallPay;
    }
}