实用技术-校验框架入门 01
电脑版发表于:2022/8/11 22:35
一、表单校验分类
二、
三、
1、
2、本次的校验框架
2.1数据的校验
?JSR 303 是 Java 为 Bean 的数据合法性校验提供的标准框架,它已经包含在 JavaEE 6.0 中。JSR 303 通过在 Bean 属性上标注类似于 @NotNull、@Max 等标准的注解指定校验规则,并通过标准的验证接口对 Bean 进行验证
注意:@Size是设置长度的,长度在max到min之间
Hibernate Validator 是 JSR 303 的一个参考实现,除支持所有标准的校验注解外,它还支持以下的扩展注解:
原文链接:https://blog.csdn.net/rubulai/article/details/96833416
四、案例、
结构
环境、注意:此次用的tomcat9版本的软件,不是插件
1、pom.xml
<!-- servlet规范--> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> <!-- jsp --> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.1</version> <scope>provided</scope> </dependency> <!-- spring--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.1.9.RELEASE</version> </dependency> <!-- spring Mvc--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>5.1.9.RELEASE</version> </dependency> <!-- spring Web--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>5.1.9.RELEASE</version> </dependency> <!--导入校验jsr303--> <dependency> <groupId>javax.validation</groupId> <artifactId>validation-api</artifactId> <version>2.0.1.Final</version> </dependency> <!--导入校验框架实现技术--> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId> <version>6.1.0.Final</version> </dependency>
2、spring-mvc.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!-- 扫描sprig的bean--> <context:component-scan base-package="com.itheima"/> <!-- mvc驱动--> <mvc:annotation-driven/> </beans>
3、web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"> <!--用于解决中文乱码--> <filter> <filter-name>CharacterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>CharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!--拦截--> <servlet> <servlet-name>DispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:spring-mvc.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>DispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
4、controller层和domain
5、页面