MyBatis-Plus框架整合详细方法

        <!--mybatis-plus-boot-starter 包含了mybatis的所有依赖-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.4.2</version>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.4.1</version>
        </dependency>
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>2.3.28</version>
        </dependency>
                <!--推荐大家使用阿里巴巴的druid的连接池-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.2.8</version>
        </dependency>
        <!--引入mysql数据库相关依赖-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>

spring:
  application:
    name: manage-client
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://127.0.0.1:3306/mysql?userSSL=false&useUnicode=true&characterEncoding=utf-8&serverTimezone=GMT%2B8
    username: root
    passWord: ys@2017
  main:
    allow-circular-references: true

#mybatis-plus配置
mybatis-plus:
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
  mapper-locations: classpath:com/huangyabei/mapper/xml/*.xml

@SpringBootApplication(scanBasePackages = {"com.win.sky"})
@MapperScan(basePackages="com.win.sky.dao")
@EnableDiscoveryClient
public class SaasAdminApplication {
    public static void main(String[] args) {
        SpringApplication.run(SaasAdminApplication.class, args);
    }
}

import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.annotation.FieldFill;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.config.DataSourceConfig;
import com.baomidou.mybatisplus.generator.config.GlobalConfig;
import com.baomidou.mybatisplus.generator.config.PackageConfig;
import com.baomidou.mybatisplus.generator.config.StrategyConfig;
import com.baomidou.mybatisplus.generator.config.po.TableFill;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;

import java.util.Arrays;
import java.util.List;

public class MyBatisPlusGenerate {

    public static void main(String[] args) {

        //创建generator对象：通过操作这个对象来生成代码
        AutoGenerator autoGenerator = new AutoGenerator();
        //数据源：建立数据源与数据库连接
        DataSourceConfig dataSourceConfig = new DataSourceConfig();
        dataSourceConfig.setDbType(DbType.MYSQL);//选择数据库的类型
        //数据源
        dataSourceConfig.setDriverName("com.mysql.cj.jdbc.Driver");
        //账号
        dataSourceConfig.setUsername("root");
        //密码
        dataSourceConfig.setPassword("ys@2017");
        //连接地址
        dataSourceConfig.setUrl("jdbc:mysql://192.168.10.77:3306/yszh_gw?useUnicode=true&characterEncoding=utf8&serverTimezone=Asia/Shanghai");
        autoGenerator.setDataSource(dataSourceConfig);
        //全局配置
        GlobalConfig globalConfig = new GlobalConfig();
        globalConfig.setOutputDir("D:/generatinGCode/test/main/java");//放到子工程里，修改了路径  //这里个人建议经历不要直接放在公司项目里面,避免覆盖已经写好的代码,
        globalConfig.setAuthor("yszh-gw");
        globalConfig.setOpen(false);
        globalConfig.setServiceName("%sService");
        autoGenerator.setGlobalConfig(globalConfig);
        //包信息
        PackageConfig packageConfig = new PackageConfig();
        packageConfig.setParent("com.win.sky.news");
        packageConfig.setEntity("entity");
        packageConfig.setMapper("mapper");
        packageConfig.setService("service");
        packageConfig.setServiceImpl("service.impl");
        packageConfig.setController("controller");
        autoGenerator.setPackageInfo(packageConfig);
        //策略配置
        StrategyConfig strategyConfig = new StrategyConfig();
        strategyConfig.setInclude("t_test","t_order");//有新的表往里面加就是了
        strategyConfig.setNaming(NamingStrategy.underline_to_camel);//数据库表映射到实体的命名策略驼峰命名
        strategyConfig.setTablePrefix(packageConfig.getModuleName() + "t_");//生成实体时去掉表前缀
        strategyConfig.setColumnNaming(NamingStrategy.underline_to_camel);//数据库表字段映射到实体的命名策略
        strategyConfig.setEntityLombokModel(true);
        TableFill tableFill = new TableFill("create_time", FieldFill.INSERT);
        TableFill tableFill1 = new TableFill("update_time", FieldFill.INSERT_UPDATE);
        List<TableFill> tableFills = Arrays.asList(tableFill,tableFill1);
        strategyConfig.setTableFillList(tableFills);
        autoGenerator.setStrategy(strategyConfig);
        //运行
        autoGenerator.execute();
    }

}

Page<TenantVo> page = new Page<>(pageNum,pageSize);

QueryWrapper<TenantVo> qw = new QueryWrapper<>();

        SELECT md.id,
               md.name,
               md.menus_id,
               md.coding,
               md.data_id,
               md.remark,
               md.create_by,
               md.create_time,
               md.update_by,
               md.update_time,
               d.name dataName,
               d.rule
                 FROM t_menus_data md
                 LEFT JOIN t_data_permission d on d.id = md.data_id
--下面的代码就是用例接收服务层传过来的拼接的条件参数                 
        <where>
            ${ew.sqlSegment}
        </where>

    IPage<MenusDataEntity> pageVo(@Param("page") IPage<MenusDataEntity> page, @Param(Constants.WRAPPER) QueryWrapper<MenusDataEntity> qw);

        IPage<MenusDataEntity> page = new Page<>(pageNum,pageSize);
        QueryWrapper<MenusDataEntity> qw = new QueryWrapper<>();
        // 查询添加环节筛选需求
        qw.eq("md.menus_id",menusId);
        if (!StrUtil.isEmpty(name)){
            qw.like("md.name",name);
        }
        IPage<MenusDataEntity> menusDataEntityIPage = menusDataMapper.pageVo(page,qw);