阿里巴巴新网站怎么做运营,在线做ppt模板下载网站有哪些,wordpress如何抓取,网站后台版权目录 完善登录功能
注册接口参数校验
完善分页查询
完善日期格式
更新文章分类和添加文章分类的分组校验
编辑
自定义校验
文件上传 完善登录功能
对前端传过来的明文密码进行md5加密处理 password DigestUtils.md5DigestAsHex(password.getBytes()); 这样既可
注…目录 完善登录功能
注册接口参数校验
完善分页查询
完善日期格式
更新文章分类和添加文章分类的分组校验
编辑
自定义校验
文件上传 完善登录功能
对前端传过来的明文密码进行md5加密处理 password DigestUtils.md5DigestAsHex(password.getBytes()); 这样既可
注册接口参数校验
Spring Validation
Spring 提供的一个参数校验框架,使用预定义的注解完成参数校验
使用Spring Validation,对注册接口的参数进行合法性校验
引入Spring Validation 起步依赖
在参数前面添加Pattern注解
在Controller类上添加Validated注解
完善分页查询
pom.xml
dependencygroupIdcom.github.pagehelper/groupIdartifactIdpagehelper-spring-boot-starter/artifactId/dependency
mapper动态sql ?xml version1.0 encodingUTF-8 ?
!DOCTYPE mapper PUBLIC -//mybatis.org//DTD Mapper 3.0//ENhttp://mybatis.org/dtd/mybatis-3-mapper.dtd
mapper namespacecom.sky.mapper.EmployeeMapperselect idpageQuery resultTypecom.sky.entity.Employeeselect * from employeewhereif testname!null and name!and name like concat(%,#{name},%)/if/whereorder by create_time desc/select
/mapperservice 完善日期格式
解决方式: 方式一:在属性上加入注解对日期进行格式化
JsonFormat(pattern yyyy-MM-dd HH:mm:ss)private LocalDateTime updateTime; 方式二:在 WebMvcConfiguration 中扩展Spring MVC的消息转换器统一对日期类型进行格式化处理 //扩展springMvc框架的消息转化器protected void extendMessageConverters(ListHttpMessageConverter? converters) {log.info(扩展消息转化器..);//创建一个消息转化器对象MappingJackson2HttpMessageConverter converter new MappingJackson2HttpMessageConverter();//需要为消息转化器设置一个对象转化器对象转化器可以将java对象序列化为json数据converter.setObjectMapper(new JacksonObjectMapper());//将自己的消息转化器加入容器中converters.add(0,converter);} 更新文章分类和添加文章分类的分组校验
添加文章中没有传id参数 更新文章分类中传了id参数 这样运行起来就会报错 可以这样
package com.yjj.bigevent.Pojo;import com.fasterxml.jackson.annotation.JsonFormat;
import jakarta.validation.constraints.NotEmpty;
import jakarta.validation.constraints.NotNull;
import jakarta.validation.groups.Default;
import lombok.Data;import java.time.LocalDateTime;Data
public class Category {NotNull(groups Update.class)private Integer id;//主键IDNotEmptyprivate String categoryName;//分类名称NotEmptyprivate String categoryAlias;//分类别名private Integer createUser;//创建人IDJsonFormat(pattern yyyy-MM-dd HH:mm:ss)private LocalDateTime createTime;//创建时间JsonFormat(pattern yyyy-MM-dd HH:mm:ss)private LocalDateTime updateTime;//更新时间//如果说某个校验项没有指定分组,默认属于Default分组// 分组之间可以继承A extends B那么A中拥有B中所有的校验项public interface Add extends Default {}public interface Update extends Default{}
}就不会报错了
自定义校验
自定义注解State
package com.yjj.bigevent.Anno;import com.yjj.bigevent.Validation.StateValidation;
import jakarta.validation.Constraint;
import jakarta.validation.Payload;import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;import static java.lang.annotation.ElementType.*;
import static java.lang.annotation.RetentionPolicy.RUNTIME;Target({ FIELD})//元注解
Retention(RUNTIME)//元注解
Documented//元注解
Constraint(validatedBy { StateValidation.class})//指定提供校验规则的类
public interface State {//提供校验失败后的提示信息String message() default state参数的值只能是已发布或者草稿;//指定分组Class?[] groups() default { };//负载获取到State注解的附加信息Class? extends Payload[] payload() default { };
}自定义校验数据的类StateValidation实现ConstraintValidator接口 package com.yjj.bigevent.Validation;import com.yjj.bigevent.Anno.State;
import jakarta.validation.ConstraintValidator;
import jakarta.validation.ConstraintValidatorContext;public class StateValidation implements ConstraintValidatorState,String {//param value 将来要校验的数据//param context context in which the constraint is evaluated//return 如果返回false,则校验不通过,如果返回true,则校验通过Overridepublic boolean isValid(String value, ConstraintValidatorContext context) {//提供校验规则if (valuenull) {return false;}if (value.equals(已发布)||value.equals(草稿)){return true;}return false;}
}在需要校验的地方使用自定义注解 测试 文件上传
导入阿里云的依赖坐标
pom.xml
dependencygroupIdcom.aliyun.oss/groupIdartifactIdaliyun-sdk-oss/artifactIdversion3.17.4/version
/dependency如果使用的是Java 9及以上的版本则需要添加JAXB相关依赖。添加JAXB相关依赖示例代码如下
dependencygroupIdjavax.xml.bind/groupIdartifactIdjaxb-api/artifactIdversion2.3.1/version
/dependency
dependencygroupIdjavax.activation/groupIdartifactIdactivation/artifactIdversion1.1.1/version
/dependency
!-- no more than 2.3.3--
dependencygroupIdorg.glassfish.jaxb/groupIdartifactIdjaxb-runtime/artifactIdversion2.3.3/version
/dependency工具类
package com.yjj.bigEvent.Utils;import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;import java.io.InputStream;public class AliOssUtil {private static final String ENDPOINT https://加上访问端口https://oss-cn-hangzhou.aliyuncs.com;private static final String ACCESS_KEY_ID ACCESS的id;private static final String SECRET_ACCESS_KEY ACCESS的secret;private static final String BUCKET_NAME 自己的bucket名字;//上传文件,返回文件的公网访问地址public static String uploadFile(String objectName, InputStream inputStream){// 创建OSSClient实例。OSS ossClient new OSSClientBuilder().build(ENDPOINT,ACCESS_KEY_ID,SECRET_ACCESS_KEY);//公文访问地址String url ;try {// 创建存储空间。ossClient.createBucket(BUCKET_NAME);ossClient.putObject(BUCKET_NAME, objectName, inputStream);url https://BUCKET_NAME.ENDPOINT.substring(ENDPOINT.lastIndexOf(/)1)/objectName;} catch (OSSException oe) {System.out.println(Caught an OSSException, which means your request made it to OSS, but was rejected with an error response for some reason.);System.out.println(Error Message: oe.getErrorMessage());System.out.println(Error Code: oe.getErrorCode());System.out.println(Request ID: oe.getRequestId());System.out.println(Host ID: oe.getHostId());} catch (ClientException ce) {System.out.println(Caught an ClientException, which means the client encountered a serious internal problem while trying to communicate with OSS, such as not being able to access the network.);System.out.println(Error Message: ce.getMessage());} finally {if (ossClient ! null) {ossClient.shutdown();}}return url;}
}
