本文主要是介绍云尚办公系统-1，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
一.搭建后端环境
1. maven聚合工程
1.1创建父工程及对应的子模块
2.配置依赖关系
2.1 guigu-oa-parent管理依赖版本
<?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 http://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>2.3.6.RELEASE</version></parent><groupId>com.atguigu</groupId><artifactId>guigu-oa-parent</artifactId><packaging>pom</packaging><version>1.0-SNAPSHOT</version><modules><module>common</module><module>model</module><module>service-oa</module></modules><properties><java.version>1.8</java.version><mybatis-plus.version>3.4.1</mybatis-plus.version><mysql.version>8.0.30</mysql.version><knife4j.version>3.0.3</knife4j.version><jwt.version>0.9.1</jwt.version><fastjson.version>2.0.21</fastjson.version></properties><!--配置dependencyManagement锁定依赖的版本--><dependencyManagement><dependencies><!--mybatis-plus 持久层--><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId><version>${mybatis-plus.version}</version></dependency><!--mysql--><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>${mysql.version}</version></dependency><!--knife4j--><dependency><groupId>com.github.xiaoymin</groupId><artifactId>knife4j-spring-boot-starter</artifactId><version>${knife4j.version}</version></dependency><!--jjwt--><dependency><groupId>io.jsonwebtoken</groupId><artifactId>jjwt</artifactId><version>${jwt.version}</version></dependency><!--fastjson--><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>${fastjson.version}</version></dependency></dependencies></dependencyManagement><build><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><version>3.1</version><configuration><source>1.8</source><target>1.8</target></configuration></plugin></plugins></build></project>
2.1.1导入依赖时遇到的bug
注意:如果直接复制dependencyManagement会导致依赖爆红,这是因为dependencyManagement会锁定依赖,dependencyManagement里面的dependency本里仓库里没有也无法从远程仓库下载，所以会爆红.
解决办法:先把从dependencyManagement中取出来，把依赖下载好再放回到dependencyManagement中
2.2 common模块
<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>com.atguigu</groupId><artifactId>guigu-oa-parent</artifactId><version>1.0-SNAPSHOT</version></parent><artifactId>common</artifactId><packaging>pom</packaging><modules><module>common-util</module><module>service-util</module></modules></project>
2.2.1 common-util模块
<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd"><parent><artifactId>common</artifactId><groupId>com.atguigu</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><artifactId>common-util</artifactId><packaging>jar</packaging><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId><scope>provided </scope></dependency><dependency><groupId>io.jsonwebtoken</groupId><artifactId>jjwt</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId></dependency></dependencies>
</project>
2.2.2 service-util模块
<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>com.atguigu</groupId><artifactId>common</artifactId><version>1.0-SNAPSHOT</version></parent><artifactId>service-util</artifactId><dependencies><dependency><groupId>com.atguigu</groupId><artifactId>common-util</artifactId><version>1.0-SNAPSHOT</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId></dependency><!--mysql--><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId></dependency></dependencies></project>
2.2.3 model模块
从资料中导入相应的实体类
3.配置Mybatis-plus
3.1配置文件
3.1.1配置application.yml
spring:application:name: service-oaprofiles:active: dev
3.1.2配置application-dev.yml
server:port: 8800
mybatis-plus:configuration:log-impl: org.apache.ibatis.logging.stdout.StdOutImpl # 查看日志
spring:datasource:type: com.zaxxer.hikari.HikariDataSourcedriver-class-name: com.mysql.cj.jdbc.Driverurl: jdbc:mysql://localhost:3306/guigu-oa?serverTimezone=GMT%2B8&useSSL=false&characterEncoding=utf-8username: rootpassword:Zhu15161393.2 创建启动类
package com.atguigu;import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplication
@ComponentScan("com.atguigu")
@MapperScan("com.atguigu.*.mapper")
public class ServiceAuthApplication {public static void main(String[] args) {SpringApplication.run(ServiceAuthApplication.class, args);}}
3.3 添加Mapper类
package com.atguigu.auth.mapper;import com.atguigu.model.auth.SysRole;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.apache.ibatis.annotations.Mapper;@Mapper
public interface SysRoleMapper extends BaseMapper<SysRole> {}
3.4测试mapper接口
package com.atguigu;import com.atguigu.model.system.SysRole;
import com.atguigu.system.mapper.SysRoleMapper;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;import java.util.List;@RunWith(SpringRunner.class)
@SpringBootTest
public class SysRoleMapperTest {@Autowiredprivate SysRoleMapper sysRoleMapper;@Testpublic void testSelectList() {System.out.println(("----- selectAll method test ------"));//UserMapper 中的 selectList() 方法的参数为 MP 内置的条件封装器 Wrapper//所以不填写就是无任何条件List<SysRole> users = sysRoleMapper.selectList(null);users.forEach(System.out::println);}
}
3.5 封装service层
3.5.1添加service接口
package com.atguigu.auth.service;import com.atguigu.model.auth.SysRole;
import com.baomidou.mybatisplus.extension.service.IService;import java.util.List;public interface SysRoleService extends IService<SysRole> {}
3.5.2添加接口实现
package com.atguigu.auth.service.impl;import com.atguigu.auth.mapper.SysRoleMapper;
import com.atguigu.auth.service.SysRoleService;
import com.atguigu.model.auth.SysRole;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;import java.util.List;public class SysRoleServiceImpl extends ServiceImpl<SysRoleMapper, SysRole> implements SysRoleService {@Autowiredprivate SysRoleMapper sysRoleMapper;
}
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