云尚办公系统-1

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-oa
  profiles:
    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.HikariDataSource
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://localhost:3306/guigu-oa?serverTimezone=GMT%2B8&useSSL=false&characterEncoding=utf-8
    username: root
    password:Zhu1516139
    

3.2 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 {

    @Autowired
    private SysRoleMapper sysRoleMapper;

    @Test
    public 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 {

    @Autowired
    private SysRoleMapper sysRoleMapper;
}