springboot2.3整合druid、,mybaits-plus且mybatis-plus自动生成代码

本教程将介绍如何使用 mybatis-plus 工具自动给我们生成 controller、service、entity、Dao、Mapper.xml 层代码

以及springboot2.3整合druid、,mybaits-plus且mybatis-plus自动生成代码

先导入pom

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.3.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.cmttinfo</groupId>
    <artifactId>activiti</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>activiti</name>
    <description>工作流服务开发</description>

    <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>
        <!--配置druid数据源-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.9</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.baomidou/mybatis-plus-boot-starter -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.3.2</version>
        </dependency>

        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.3.2</version>
            <scope>compile</scope>
        </dependency>


        <!-- 模板 velocity -->
        <dependency>
            <groupId>org.apache.velocity</groupId>
            <artifactId>velocity</artifactId>
            <version>1.7</version>
        </dependency>

        <!-- java工具类 -->
        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
            <version>4.5.18</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-spring-boot-starter-basic</artifactId>
            <version>6.0.0</version>
            <exclusions>
                <exclusion>
                    <groupId>org.mybatis</groupId>
                    <artifactId>mybatis</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

配置yml文件

spring:
  activiti:
    database-schema-update: true
  profiles:
    active: dev
  datasource:
    url: jdbc:mysql://localhost:3306/activiti?zeroDateTimeBehavior=convertToNull&useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC&autoReconnect=true&nullCatalogMeansCurrent=true
    username: root
    password: 1qazxsw@
    driver-class-name: com.mysql.cj.jdbc.Driver
    platform: mysql
    type: com.alibaba.druid.pool.DruidDataSource
    initialSize: 1
    minIdle: 3
    maxActive: 20
    maxWait: 60000
    timeBetweenEvictionRunsMillis: 60000
    minEvictableIdleTimeMillis: 30000
    validationQuery: select 'x'
    testWhileIdle: true
    testOnBorrow: false
    testOnReturn: false
    poolPreparedStatements: true
    maxPoolPreparedStatementPerConnectionSize: 20
    filters: stat,wall,slf4j
    connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
    #useGlobalDataSourceStat: true
#端口号
server:
  port: 80
logging:
  level:
    com.cmttinfo.activiti.Dao: debug
mybatis-plus:
  type-aliases-package: com.cmttinfo.activiti.entity.SysUser
  type-aliases-super-type: java.lang.Object
  configuration:
    map-underscore-to-camel-case: true
    cache-enabled: true
    lazy-loading-enabled: true
    multiple-result-sets-enabled: true
    use-generated-keys: true
    default-statement-timeout: 60
    default-fetch-size: 100
  mapper-locations: classpath*:com.cmttinfo.activiti.Dao/*.xml

插入mybatis plus配置文件、

package com.cmttinfo.activiti.config;

import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.transaction.annotation.EnableTransactionManagement;

@Configuration
@EnableTransactionManagement
@MapperScan("com.cmttinfo.activiti.Dao")
public class MybatisPlusConfig {
    /**
     * 分页插件
     * @author ll
     * @return com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor
     */
    @Bean
    public PaginationInterceptor paginationInterceptor() {
        return new PaginationInterceptor();
    }

}

插入druid配置文件

package com.cmttinfo.activiti.config;

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.sql.DataSource;

/**
 *  数据源配置类
 */
@Configuration
public class DruidConfig {
    // 将所有前缀为spring.datasource下的配置项都加载到DataSource中
    @ConfigurationProperties(prefix = "spring.datasource")
    @Bean
    public DataSource druidDataSource() {
        return new DruidDataSource();
    }

    @Bean
    public ServletRegistrationBean statViewServlet() {
        ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
        // 添加IP白名单
        servletRegistrationBean.addInitParameter("allow", "127.0.0.1");
        // 添加IP黑名单,当白名单和黑名单重复时,黑名单优先级更高
        servletRegistrationBean.addInitParameter("deny", "127.0.0.3");
        // 添加控制台管理用户
        servletRegistrationBean.addInitParameter("loginUsername", "admin");
        servletRegistrationBean.addInitParameter("loginPassword", "123456");
        // 是否能够重置数据
        servletRegistrationBean.addInitParameter("resetEnable", "false");
        return servletRegistrationBean;
    }

    /**
     * 配置服务过滤器
     *
     * @return 返回过滤器配置对象
     */
    @Bean
    public FilterRegistrationBean statFilter() {
        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());
        // 添加过滤规则
        filterRegistrationBean.addUrlPatterns("/*");
        // 忽略过滤格式
        filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*,");
        return filterRegistrationBean;
    }
}

插入自动生成代码配置文件

package com.cmttinfo.activiti.config;



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.rules.NamingStrategy;

public class MysqlGenerator {


    public static void main(String[] args) {
        AutoGenerator mpg = new AutoGenerator();

        GlobalConfig gc = new GlobalConfig();
        String projectPath = System.getProperty("user.dir");
        gc.setEnableCache(false);// XML 二级缓存
        gc.setOutputDir(projectPath + "/src/main/java");
        gc.setAuthor("demo");   // 作者
        gc.setOpen(false);      //生成代码后是否打开文件夹
        gc.setServiceName("%sService");  // 设置Service接口生成名称,这样生成接口前面就不会有 I
        mpg.setGlobalConfig(gc);

        DataSourceConfig dsc = new DataSourceConfig();
        dsc.setUrl("jdbc:mysql://localhost:3306/activiti?zeroDateTimeBehavior=convertToNull&useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC&autoReconnect=true");
        dsc.setDriverName("com.mysql.cj.jdbc.Driver");
        dsc.setUsername("root");
        dsc.setPassword("1qazxsw@");
        mpg.setDataSource(dsc);

        // 包配置
        PackageConfig pc = new PackageConfig();
        //pc.setModuleName("sys"); // 模块名称, 这里可以根据不同模块来写
        pc.setParent("com.cmttinfo.activiti"); // 父包名
        pc.setController("controller");
        pc.setMapper("Dao");
        pc.setXml("mapper");
        mpg.setPackageInfo(pc);



        // 策略配置
        StrategyConfig strategy = new StrategyConfig();
        strategy.setNaming(NamingStrategy.underline_to_camel);
        strategy.setColumnNaming(NamingStrategy.underline_to_camel);
        strategy.setEntityLombokModel(true);
        strategy.setInclude("test");  // 如果要生成多个,这里可以传入String[]
        mpg.setStrategy(strategy);
        mpg.execute();
    }



}

最后启动,即可成功

posted @ 2020-08-16 21:27  散落人间  阅读(1288)  评论(0编辑  收藏  举报
interface food{} class A implements food{} class B implements food{} class C implements food{} public class StaticFactory { private StaticFactory(){} public static food getA(){ return new A(); } public static food getB(){ return new B(); } public static food getC(){ return new C(); } } class Client{ //客户端代码只需要将相应的参数传入即可得到对象 //用户不需要了解工厂类内部的逻辑。 public void get(String name){ food x = null ; if ( name.equals("A")) { x = StaticFactory.getA(); }else if ( name.equals("B")){ x = StaticFactory.getB(); }else { x = StaticFactory.getC(); } } }