前要
项目设计–宿舍管理系统
项目建立
太长了,修改一下
导入依赖
暂时先加上下面依赖,还有的话以后在看
<java.version>17</java.version>
<maven.compiler.source>17</maven.compiler.source>
<maven.compiler.target>17</maven.compiler.target>
<hutool.version>5.8.15</hutool.version>
<druid.version>1.2.16</druid.version>
<mybatis-plus.version>3.5.3.1</mybatis-plus.version>
<xxl-job.version>2.4.0</xxl-job.version>
<java-jwt.version>4.2.1</java-jwt.version>
<easyexcel.version>3.2.1</easyexcel.version>
<easy-captcha.version>1.6.2</easy-captcha.version>
<knife4j.version>4.0.0</knife4j.version>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<!--mybatis-plus依赖-->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>${mybatis-plus.version}</version>
</dependency>
<!--jwt令牌-->
<dependency>
<groupId>com.auth0</groupId>
<artifactId>java-jwt</artifactId>
<version>${java-jwt.version}</version>
</dependency>
<!--连接池-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>${druid.version}</version>
</dependency>
<!--hutool工具包-->
<dependency>
<groupId>cn.hutool</groupId>
<artifactId>hutool-all</artifactId>
<version>${hutool.version}</version>
</dependency>
<!--xxl-job定时任务-->
<dependency>
<groupId>com.xuxueli</groupId>
<artifactId>xxl-job</artifactId>
<version>${xxl-job.version}</version>
</dependency>
<!--excel操作-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>easyexcel</artifactId>
<version>${easyexcel.version}</version>
</dependency>
<!-- 验证码 -->
<dependency>
<groupId>com.github.whvcse</groupId>
<artifactId>easy-captcha</artifactId>
<version>${easy-captcha.version}</version>
</dependency>
<!--swagger-->
<dependency>
<groupId>com.github.xiaoymin</groupId>
<artifactId>knife4j-openapi3-jakarta-spring-boot-starter</artifactId>
<version>${knife4j.version}</version>
</dependency>
配置文件
application.yml
spring:
application:
name: xiaoyu
profiles:
active: dev
application-dev.yml
server:
port: 8080
spring:
datasource:
type: com.alibaba.druid.pool.DruidDataSource
driver-class-name: com.mysql.cj.jdbc.Driver
url:
username:
password:
data:
redis:
database: 6
host:
port:
password:
timeout: 10s
lettuce:
pool:
# 连接池最大连接数 默认8 ,负数表示没有限制
max-active: 8
# 连接池最大阻塞等待时间(使用负值表示没有限制) 默认-1
max-wait: -1
# 连接池中的最大空闲连接 默认8
max-idle: 8
# 连接池中的最小空闲连接 默认0
min-idle: 0
mybatis-plus:
global-config:
db-config:
# 主键ID类型
id-type: none
# 逻辑删除字段名称
logic-delete-field: deleted
# 逻辑删除-删除值
logic-delete-value: 1
# 逻辑删除-未删除值
logic-not-delete-value: 0
configuration:
# 驼峰下划线转换
map-underscore-to-camel-case: true
# 这个配置会将执行的sql打印出来,在开发或测试的时候可以用
log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
# 认证配置
auth:
token:
secret_key:
# token 有效期(单位:秒)
ttl:
# springdoc配置: https://springdoc.org/properties.html
springdoc:
swagger-ui:
enabled: true
operationsSorter: alpha
tags-sorter: alpha
api-docs:
enabled: true
# 验证码配置
easy-captcha:
# 验证码类型: arithmetic-算术
type: arithmetic
# 验证码有效时间(单位:秒)
ttl: 120
# xxl-job 定时任务配置
xxl:
job:
admin:
# 多个地址使用,分割
addresses:
accessToken:
executor:
appname:
address:
ip:
port:
logpath:
logretentiondays:
# 系统配置
system:
config:
# 数据权限开关
data-permission-enabled:
# 定时任务 xxl-job 开关
xxl-job-enabled:
# WebSocket 开关
websocket-enabled:
配置目录结构
新加一个handler包,用于像mybatis自动填充的处理配置
config配置
mybatis-plus
具体配置mybaits-plus配置
注解
// 配置文件
@Configuration
// 开启事务管理
@EnableTransactionManagement
// mapper扫描
@MapperScan("com.yu.mapper")
插件bean
这里先只配置分页插件
@Bean
public MybatisPlusInterceptor mybatisPlusInterceptor() {
MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
//分页插件
interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
return interceptor;
}
自动填充bean
@Bean
public GlobalConfig globalConfig() {
GlobalConfig globalConfig = new GlobalConfig();
globalConfig.setMetaObjectHandler(new MyMetaObjectHandler());
return globalConfig;
}
这里有2种写法,注释掉的是低版本的。高版本从3.3.0开始可以使用。不过3.3.0不要使用。有bug。
@Component
public class MyMetaObjectHandler implements MetaObjectHandler {
/**
* 新增填充创建时间
*
* @param metaObject
*/
@Override
public void insertFill(MetaObject metaObject) {
// this.strictInsertFill(metaObject, "createTime", LocalDateTime::now, LocalDateTime.class);
// this.strictUpdateFill(metaObject, "updateTime", LocalDateTime::now, LocalDateTime.class);
this.fillStrategy(metaObject,"createTime",LocalDateTime.now());
this.fillStrategy(metaObject,"updateTime",LocalDateTime.now());
}
/**
* 更新填充更新时间
*
* @param metaObject
*/
@Override
public void updateFill(MetaObject metaObject) {
// this.strictUpdateFill(metaObject, "updateTime", LocalDateTime::now, LocalDateTime.class);
this.fillStrategy(metaObject,"updateTime",LocalDateTime.now());
}
}
swagger
@Configuration
public class SwaggerConfig {
/**
* 接口信息
*/
@Bean
public OpenAPI apiInfo() {
return new OpenAPI()
.components(new Components()
.addSecuritySchemes("Authorization",
new SecurityScheme().type(SecurityScheme.Type.HTTP)
.scheme("bearer").bearerFormat("JWT")
)
)
.info(new Info()
.title("xiao-yu-Dormitory 接口文档")
.version("1.0.0")
.description("接口文档")
);
}
/**
* 系统接口分组
*/
@Bean
public GroupedOpenApi systemApi() {
String[] paths = {"/**"};
String[] packagesToScan = {"com.yu.controller"};
return GroupedOpenApi.builder()
.group("系统接口")
.packagesToScan(packagesToScan)
.pathsToMatch(paths)
.build();
}
}
生成实体、mapper和service
我直接用mybatisX进行生成
通过右键表可以
选择模块
基础包
文章来源:https://www.toymoban.com/news/detail-661332.html
baseEntity
在common包下新建一个类
用于规范创建和更新时间的类文章来源地址https://www.toymoban.com/news/detail-661332.html
@Data
public class BaseEntity implements Serializable {
@Serial
private static final long serialVersionUID = 1L;
@TableField(fill = FieldFill.INSERT)
@JsonInclude(value = JsonInclude.Include.NON_NULL)
@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
private LocalDateTime createTime;
@TableField(fill = FieldFill.INSERT_UPDATE)
@JsonInclude(value = JsonInclude.Include.NON_NULL)
@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
private LocalDateTime updateTime;
}
统一响应实例
响应码接口
public interface IResultCode {
String getCode();
String getMsg();
}
响应码接口实现
@AllArgsConstructor
@NoArgsConstructor
public enum ResultCode implements IResultCode, Serializable {
SUCCESS("00000", "ok"),
@Override
public String getCode() {
return code;
}
@Override
public String getMsg() {
return msg;
}
private String code;
private String msg;
@Override
public String toString() {
return "{" +
"\"code\":\"" + code + '\"' +
", \"msg\":\"" + msg + '\"' +
'}';
}
public static ResultCode getValue(String code){
for (ResultCode value : values()) {
if (value.getCode().equals(code)) {
return value;
}
}
return SYSTEM_EXECUTION_ERROR;
}
}
统一响应result
@EqualsAndHashCode(callSuper = true)
public record Result<T>(
String code,
T data,
String msg
) implements Serializable{
public static <T> Result<T> success() {
return success(null);
}
public static <T> Result<T> success(T data) {
return new Result<>(ResultCode.SUCCESS.getCode(),data,ResultCode.SUCCESS.getMsg());
}
public static <T> Result<T> failed() {
return result(ResultCode.SYSTEM_EXECUTION_ERROR.getCode(), ResultCode.SYSTEM_EXECUTION_ERROR.getMsg(), null);
}
public static <T> Result<T> failed(String msg) {
return result(ResultCode.SYSTEM_EXECUTION_ERROR.getCode(), msg, null);
}
public static <T> Result<T> judge(boolean status) {
if (status) {
return success();
} else {
return failed();
}
}
public static <T> Result<T> failed(IResultCode resultCode) {
return result(resultCode.getCode(), resultCode.getMsg(), null);
}
public static <T> Result<T> failed(IResultCode resultCode, String msg) {
return result(resultCode.getCode(), msg, null);
}
private static <T> Result<T> result(IResultCode resultCode, T data) {
return result(resultCode.getCode(), resultCode.getMsg(), data);
}
private static <T> Result<T> result(String code, String msg, T data) {
return new Result<>(code, data, msg);
}
public static boolean isSuccess(Result<?> result) {
return result != null && ResultCode.SUCCESS.getCode().equals(result.code());
}
}
统一分页响应
public record PageResult<T>(
String code,
Data<T> data,
String msg
) implements Serializable {
public static <T> PageResult<T> success(IPage<T> page) {
Data<T> data = new Data<T>(page.getRecords(), page.getTotal());
return new PageResult<T>(
ResultCode.SUCCESS.getCode(), data, ResultCode.SUCCESS.getMsg()
);
}
public record Data<T>(List<T> list, long total) {
}
}
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