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常用的一些配置

application.properties

#驱动类名称
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
#数据库连接的url
spring.datasource.url=jdbc:mysql://localhost:3306/vue
#连接数据库的用户名
spring.datasource.username=root
#连接数据库的密码
spring.datasource.password=root

#配置mybatis的日志, 指定输出到控制台
mybatis.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl
#开启mybatis的驼峰命名自动映射开关 a_column ------> aCloumn
mybatis.configuration.map-underscore-to-camel-case=true

#文件上传
#配置单个文件最大上传大小
spring.servlet.multipart.max-file-size=10MB
#配置单个请求最大上传大小(一次请求可以上传多个文件)
spring.servlet.multipart.max-request-size=100MB


#自定义的阿里云OSS配置信息
aliyun.oss.endpoint=https://oss-cn-hangzhou.aliyuncs.com
aliyun.oss.accessKeyId=LTAI5tNq56YTqfhpYpgcuLu7
aliyun.oss.accessKeySecret=r2Ghq53jAVj2Ee4K6YGlN1aJugpqey
aliyun.oss.bucketName=wy-web-tlias

application.yml

spring:
  #数据库连接信息
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://localhost:3306/vue
    username: root
    password: root
  #文件上传的配置
  servlet:
    multipart:
      max-file-size: 10MB
      max-request-size: 100MB
#Mybatis配置
mybatis:
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
    map-underscore-to-camel-case: true

#阿里云OSS
aliyun:
  oss:
    endpoint: https://oss-cn-hangzhou.aliyuncs.com
    accessKeyId: LTAI5tNq56YTqfhpYpgcuLu7
    accessKeySecret: r2Ghq53jAVj2Ee4K6YGlN1aJugpqey
    bucketName: wy-web-tlias

常用pom文件依赖

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.7.5</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

<properties>
    <java.version>11</java.version>
</properties>


<dependencies>
    <!--web起步依赖-->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <!--mybatis起步依赖-->
    <dependency>
        <groupId>org.mybatis.spring.boot</groupId>
        <artifactId>mybatis-spring-boot-starter</artifactId>
        <version>2.2.2</version>
    </dependency>

    <!--mysql驱动-->
    <dependency>
        <groupId>com.mysql</groupId>
        <artifactId>mysql-connector-j</artifactId>
        <scope>runtime</scope>
    </dependency>

    <!--lombok-->
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <optional>true</optional>
    </dependency>

    <!--springboot单元测试-->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>

    <!--PageHelper分页插件-->
    <dependency>
        <groupId>com.github.pagehelper</groupId>
        <artifactId>pagehelper-spring-boot-starter</artifactId>
        <version>1.4.2</version>
    </dependency>

    <!--阿里云OSS-->
    <dependency>
        <groupId>com.aliyun.oss</groupId>
        <artifactId>aliyun-sdk-oss</artifactId>
        <version>3.15.1</version>
    </dependency>
    <dependency>
        <groupId>javax.xml.bind</groupId>
        <artifactId>jaxb-api</artifactId>
        <version>2.3.1</version>
    </dependency>
    <dependency>
        <groupId>javax.activation</groupId>
        <artifactId>activation</artifactId>
        <version>1.1.1</version>
    </dependency>
    <!-- no more than 2.3.3-->
    <dependency>
        <groupId>org.glassfish.jaxb</groupId>
        <artifactId>jaxb-runtime</artifactId>
        <version>2.3.3</version>
    </dependency>
    
    
    <!-- configuration-processor-->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-configuration-processor</artifactId>
    </dependency>

</dependencies>

mybatis plus依赖

<!-- mybatis plus依赖   -->
<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-boot-starter</artifactId>
    <version>3.5.3.1</version>
</dependency>
<!-- mybatis plus代码⽣成器依赖   -->
<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-generator</artifactId>
    <version>3.3.1</version>
</dependency>
<dependency>
    <groupId>org.freemarker</groupId>
    <artifactId>freemarker</artifactId>
    <version>2.3.31</version>
</dependency>
<!--生成接口文档-->
<dependency>
    <groupId>com.spring4all</groupId>
    <artifactId>spring-boot-starter-swagger</artifactId>
    <version>1.5.1.RELEASE</version>
</dependency>
<!-- mybatis-plus扩展依赖   -->
<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-extension</artifactId>
    <version>3.5.3.1</version>
</dependency>

统一结构封装类Result

@Data
@NoArgsConstructor
@AllArgsConstructor
public class Result {
    private Integer code;//响应码，1 代表成功; 0 代表失败
    private String msg;  //响应信息 描述字符串
    private Object data; //返回的数据

    //增删改 成功响应
    public static Result success(){
        return new Result(1,"success",null);
    }
    //查询 成功响应
    public static Result success(Object data){
        return new Result(1,"success",data);
    }
    //失败响应
    public static Result error(String msg){
        return new Result(0,msg,null);
    }
}

统一结构封装类Result

@Data
public class Result {

    private int code;//编码 200/400
    private String msg;//成功/失败
    private Long total;//总记录数
    private Object data;//数据

    public static Result fail(){
        return result(400,"失败",0L,null);
    }

    public static Result suc(){
        return result(200,"成功",0L,null);
    }

    public static Result suc(Object data){
        return result(200,"成功",0L,data);
    }

    public static Result suc(Object data,Long total){
        return result(200,"成功",total,data);
    }

    private static Result result(int code,String msg,Long total,Object data){
        Result res = new Result();
        res.setData(data);
        res.setMsg(msg);
        res.setCode(code);
        res.setTotal(total);
        return res;
    }

}

统一结构封装类Result

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