本篇内容介绍了“如何用OAuth 2.0实现权限认证mybatis连接mysql数据库”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！

1. 添加依赖pom信息

   <dependency>
               <groupId>mysql</groupId>
               <artifactId>mysql-connector-java</artifactId>
               <version>8.0.18</version>
           </dependency>
           <dependency>
               <groupId>org.mybatis.spring.boot</groupId>
               <artifactId>mybatis-spring-boot-starter</artifactId>
               <version>2.1.3</version>
           </dependency>
           <dependency>
               <groupId>org.mybatis</groupId>
               <artifactId>mybatis</artifactId>
               <version>3.5.5</version>
           </dependency>
           <dependency>
               <groupId>org.mybatis</groupId>
               <artifactId>mybatis-spring</artifactId>
               <version>2.0.5</version>
           </dependency>
           <dependency>
               <groupId>com.alibaba</groupId>
               <artifactId>druid</artifactId>
               <version>1.1.3</version>
           </dependency>

   
   

    

2. 添加配置信息

   spring:
     redis:
       host: 127.0.0.1
       port: 6379
     datasource:
       name:
       url: jdbc:mysql://mysqlurl:3306/hongyuan?useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true&serverTimezone=UTC
       username: root
       password: root
   server:
     port: 9090
   mybatis:
     mapper-locations: classpath:mapper/*.xml
     type-aliases-package: com.hongyuan.dao

   
   

    

3. 编辑相关的mapper文件

   package com.hongyuan.dao;
   
   import com.hongyuan.pojo.UserInfo;
   import org.apache.ibatis.annotations.Mapper;
   import org.springframework.stereotype.Repository;
   
   import java.util.List;
   
   /**
    * @ClassName UserDao
    * @PaceageName com.hongyuan.dao
    * @Description: 用户信息表
    * @Author: liuxinzhou
    * @Date: 2020/9/22 5:26 下午
    * @Version V1.0.0
    */
   @Mapper
   public interface UserMapper {
       //根据用户信息获取对应的本用户所有信息
       public UserInfo getUserInfo(UserInfo userInfo);
       // 查询所有用户信息
       public List<UserInfo> getUserList();
   }

   
   

    

4. 添加关联的xml文件

   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
           "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
   <mapper namespace="com.hongyuan.dao.UserMapper">
       <sql id="table">user</sql>
       <select id="getUserInfo" resultType="com.hongyuan.pojo.UserInfo">
           select * from
               <include refid="table"/>
           where 1=1
           <if test="username != null and username != ''">and username = #{username}</if>
       </select>
       <select id="getUserList" resultType="com.hongyuan.pojo.UserInfo">
           select * from
           <include refid="table"/>
       </select>
   </mapper>

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