web.xml的代码
[html] view plain copy <?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" 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_2_5.xsd"> <!-- 加载spring配置 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:/spring.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 这是加载springmvc的配置 --> <!-- spring自带的解决乱码的过滤器 --> <filter> <filter-name>utf</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>utf</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <filter> <!-- 配置这个selevlet来加载sprinmvc的配置文件 --> <filter-name>hidden</filter-name> <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class> </filter> <filter-mapping> <filter-name>hidden</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 通过这个参数去找配置文件 不加这个参数默认在 /WEB-INF/找spservlet-name-servlet.xml这个文件--> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:/springmvc.xml</param-value> </init-param> <!-- 启动tomcat的时候就加载 --> <load-on-startup>0</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <!-- /拦截所有以.action --> <url-pattern>*.action</url-pattern> <!-- /拦截所有servlet --> <url-pattern>/</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
spring配置文件的代码
[html] view plain copy <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd "> <!-- 加载消息源 因为是spring的所以只能写在spring的配置文件中--> <bean id="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource"> [html] view plain copy <span style="white-space:pre"> </span><!-- 把消息国际化的basename注入进来 --> <property name="basename" value="classpath:/my"></property> </bean> </beans> springmvc 的配置文件
[html] view plain copy <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd "> <!-- 配置扫描 --> <context:component-scan base-package="cn.et"></context:component-scan> <!-- 通过这个类加载spring消息源才能在实体类中用消息国际化 (验证器) --> <bean id="myMessage" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean"> <!-- 把spring的消息源注入进来 --> <property name="validationMessageSource" ref="messageSource"></property> </bean> <span style="white-space:pre"> </span> <span style="white-space:pre"> </span> <!--告诉tomcat用这个验证器 --> <span style="white-space:pre"> </span><mvc:annotation-driven validator="myMessage"> <span style="white-space:pre"> </span></mvc:annotation-driven> </beans>
[java] view plain copy @Controller @RequestMapping("/day0602") public class VaildatorAction{ @Autowired private MessageSource source; [java] view plain copy <span style="white-space:pre"> /** * 必须要添加@Valid注解,不加不会进行声明式验证 * * 当@valid注解标示的实体类验证失败后 * 所有的错误消息都被注入到BindingResult对象中 * * 在显示错误时springmvc标签的path由对象名(类名的第一个字母小写).属性名 * * @ModelAttribute("user")可以修改对象名 * * @param user * @return */</span> [java] view plain copy @RequestMapping("/vaildator.action") //@ModelAttribute("user")可以通过这个改名字默认首字母小写 还会传到jsp界面 request BindingResult是注入错误消息的对象 public String vaildator(@ModelAttribute("user") @Valid UserinfoEntity user,BindingResult bindingResult,Locale locale,HttpServletRequest request){ //代码验证 验证密码与在此输入密码 [java] view plain copy <span style="white-space:pre"> </span>if(!user.getPassword().equals(user.getRepassword())){ //获取国际化的消息 String str=source.getMessage("notpassword", null,locale); //注入到错误消息对象 bindingResult.addError(new FieldError("repassword", null, str)); } //验证不通过返回 if(bindingResult.hasErrors()){ return "/day20170602/vaildator.jsp"; } request.setAttribute("birthday",new SimpleDateFormat("yyyy-MM-dd").format(user.getBirthday())); return "/day20170602/suc.jsp"; } }
实体类中的代码
javax.validation.UnexpectedTypeException: HV000030: No validator could be found for constraint
使用hibernate validator出现上面的错误, 需要 注意 @NotNull 和 @NotEmpty 和@NotBlank 区别 @NotEmpty 用在集合类上面 @NotBlank 用在String上面 @NotNull 用在基本类型上 如果在基本类型上面用NotEmpty或者NotBlank 会出现上面的错
[java] view plain copy public class UserinfoEntity { @NotBlank(message="{notEmpty}") private String userName; @NotBlank(message="{notEmpty}") private String password; @NotBlank(message="{notEmpty}") private String repassword; @NotBlank(message="{notEmpty}") private String location; @NotNull(message="{notEmpty}") @DateTimeFormat(pattern="yyyy-MM-dd") @Past(message="{dates}") private Date birthday; @NotBlank(message="{notEmpty}") @Email(message="{emailnot}") private String email; @NotBlank(message="{notEmpty}") @Pattern(regexp="^[0-9]{17}([0-9]|x|X)$",message="{cidnot}") private String userid; @NotBlank(message="{notEmpty}") @Pattern(regexp="^[0-9]{11}",message="{phonenot}") private String phone; @URL(message="{urls}") @NotBlank(message="{notEmpty}") private String url; public String getRepassword() { return repassword; }
[html] view plain copy <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%> <%@taglib uri="http://www.springframework.org/tags" prefix="t"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>Insert title here</title> </head> <body> <form action="${pageContext.request.contextPath}/day0602/vaildator.action" method="post"> <t:message code="userName"></t:message><input type="text" name="userName"/> <font color="red"><form:errors path="user.userName"></form:errors></font><br/> <t:message code="password"></t:message><input type="password" name="password"/> <font color="red"><form:errors path="user.password"></form:errors></font><br/> <t:message code="agpassword"></t:message><input type="password" name="repassword"/> <font color="red"><form:errors path="user.repassword"></form:errors></font><br/> <t:message code="sex"></t:message><input type="radio" name="sex" value="0" checked/> <t:message code="man"></t:message><input type="radio" name="sex" value="1" /> <t:message code="woman"></t:message><br/> <t:message code="birthday"></t:message><input type="text" name="birthday"/> <font color="red"><form:errors path="user.birthday"></form:errors></font><br/> <t:message code="location"></t:message><input type="text" name="location"/> <font color="red"><form:errors path="user.location"></form:errors></font><br/> <t:message code="phone"></t:message><input type="text" name="phone"/> <font color="red"><form:errors path="user.phone"></form:errors></font><br/> <t:message code="userid"></t:message><input type="text" name="userid"/> <font color="red"><form:errors path="user.userid"></form:errors></font><br/> <t:message code="email"></t:message><input type="text" name="email"/> <font color="red"><form:errors path="user.email"></form:errors></font><br/> <t:message code="url"></t:message><input type="text" name="url"/> <font color="red"><form:errors path="user.url"></form:errors></font><br/> <input type="submit" value="<t:message code="submit"></t:message>"/><br/> </form> </body> </html>
Spring 3.0拥有自己独立的数据校验框架,同时支持JSR 303标准的校验框架。Spring 的DataBinder在进行数据绑定时,可同时调用校验框架完成数据校验工作。在Spring MVC中,则可直接通过注解驱动的方式进行数据校验。 Spring的org.springframework.validation是校验框架所在的包
<mvc:annotation-driven/>会默认装配好一个LocalValidatorFactoryBean,通过在处理方法的入参上标注@Valid注解即可让spring MVC在完成数据绑定后执行数据校验的工作。
注 解 功能说明 @Null 被注释的元素必须为 null @NotNull 被注释的元素必须不为 null @AssertTrue 被注释的元素必须为 true @AssertFalse 被注释的元素必须为 false @Min(value) 被注释的元素必须是一个数字,其值必须大于等于指定的最小值 @Max(value) 被注释的元素必须是一个数字,其值必须小于等于指定的最大值 @DecimalMin(value) 被注释的元素必须是一个数字,其值必须大于等于指定的最小值 @DecimalMax(value) 被注释的元素必须是一个数字,其值必须小于等于指定的最大值 @Size(max, min) 被注释的元素的大小必须在指定的范围内 @Digits (integer, fraction) 被注释的元素必须是一个数字,其值必须在可接受的范围内 @Past 被注释的元素必须是一个过去的日期 @Future 被注释的元素必须是一个将来的日期
hibernate-validator-4.3.2.Final架包的下载地址:
https://sourceforge.net/projects/hibernate/?source=typ_redirect
必需导入的四个包:
hibernate-validator-4.3.2.Final.jar
hibernate-validator-annotation-processor-4.3.2.Final.jar
jboss-logging-3.1.0.CR2.jar
validation-api-1.0.0.GA.jar