bean validation跟springmvc里不进行验证，BindingResult的errors一直是0

smallblood 2015-03-05 01:40:22

照着官方文档和一大堆教程的配置，但是就是不进行验证，BindingResult的errors一直是0, hibernate-validator-5.1.3.Final.jar 和 validation-api-1.1.0.Final.jar 都导了，也没报错，就是明明我提交的是空信息但是errors一直是0。

web.xml

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"

         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"

         version="3.1">

    <servlet>

        <servlet-name>spring</servlet-name>

        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

        <load-on-startup>1</load-on-startup>

    </servlet>

    <servlet-mapping>

        <servlet-name>spring</servlet-name>

        <url-pattern>/</url-pattern>

    </servlet-mapping>



    <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>

</web-app>

spring-servlet.xml

<?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: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">

    <context:component-scan base-package="com.yg.controller"/>

    <mvc:annotation-driven/>



    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="prefix" value="/"/>

        <property name="suffix" value=".jsp"/>

    </bean>





</beans>

User实体类

package com.yg.entity;



import org.hibernate.validator.constraints.NotBlank;

import org.hibernate.validator.constraints.NotEmpty;



import javax.validation.constraints.NotNull;

import javax.validation.constraints.Null;

import javax.validation.constraints.Size;



/**

 * Created by 光 on 2015/3/3.

 */

public class User {

    @NotEmpty(message = "不能为空")

    private String userName;

    @Size(min = 5,max = 12,message = "密码长度为5-12位")

    private String password;

    private String nickName;





    public User() {

    }



    public User(String userName, String password, String nickName) {

        this.userName = userName;

        this.password = password;

        this.nickName = nickName;

    }

    

    public String getUserName() {

        return userName;

    }

    

    public String getPassword() {

        return password;

    }

    

    public String getNickName() {

        return nickName;

    }



    public void setUserName(String userName) {

        this.userName = userName;

    }



    public void setPassword(String password) {

        this.password = password;

    }



    public void setNickName(String nickName) {

        this.nickName = nickName;

    }

}

UserController类

package com.yg.controller;



import com.yg.entity.User;

import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;

import org.springframework.validation.BindingResult;

import org.springframework.validation.Errors;

import org.springframework.validation.annotation.Validated;

import org.springframework.web.bind.annotation.ModelAttribute;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;



import javax.validation.*;

import java.util.ArrayList;

import java.util.List;

import java.util.Set;



/**

 * Created by 光 on 2015/3/3.

 */

@Controller

@RequestMapping("/user")

public class UserController {

    private List<User> userList = new ArrayList<User>();



    public UserController() {

        userList.add(new User("luffy","123","路飞"));

        userList.add(new User("nami","123","娜美"));

        userList.add(new User("zero","123","索隆"));

        userList.add(new User("sanji","123","香吉士"));

    }



    @RequestMapping("/users")

    public String list(Model model){

        model.addAttribute("users", userList);

        return "/user/list";

    }



    @RequestMapping(value = "/add",method = RequestMethod.GET)

    public String add(Model model){

        model.addAttribute(new User());

        return "/user/add";

    }



    @RequestMapping(value = "/add",method = RequestMethod.POST)

    public String add(@Validated User user,BindingResult br){

        System.out.println(br.getAllErrors().size());

        if(br.hasErrors()){

            System.out.println("进入");

            return "/user/add";

        }

        userList.add(user);

        return "redirect:/user/users";

    }

}

添加信息的add.jsp

<%--

  Created by IntelliJ IDEA.

  User: 光

  Date: 2015/3/4

  Time: 10:20

  To change this template use File | Settings | File Templates.

--%>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<%@taglib prefix="sf" uri="http://www.springframework.org/tags/form" %>

<html>

<head>

    <title>添加用户</title>

</head>

<body>



<sf:form method="post" modelAttribute="user">

    <sf:input path="userName" /><sf:errors path="userName"/> <br/>

    <sf:password path="password"/><br/>

    <sf:input path="nickName"/><br/>

    <input type="submit" value="提交">

</sf:form>





</body>

</html>

我整了一天了，也没报错，就是不进行验证，对比了N个教程和官方文档都一样，但是别人的验证，我的没验证，实在没法了，求教啊

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「已注销」 2017-05-27

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引用 19 楼 dengqui 的回复:

[quote=引用 18 楼 gyf6067 的回复:] 试了一整个上午，终于解决了。只要将【<mvc:annotation-driven/> 】提至 spring 配置文件的最前面，奇迹出现了！！！

就是这个原因，卧槽，太坑了[/quote] 为什么我提到最前面了还是没用啊

dengqui 2017-05-19

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引用 18 楼 gyf6067 的回复:

试了一整个上午，终于解决了。只要将【<mvc:annotation-driven/> 】提至 spring 配置文件的最前面，奇迹出现了！！！

就是这个原因，卧槽，太坑了

浪子不再独行 2016-12-16

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试了一整个上午，终于解决了。只要将【<mvc:annotation-driven/> 】提至 spring 配置文件的最前面，奇迹出现了！！！

qq_35910103 2016-11-22

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是不是使用的是spring4mvc? 如果是的话，不用导入bean-validator.jar 而是导入hibernate-validator-5.3.2.Final中dist目录中的3个jar包以及dist/lib/require中的5个jar包

Wei_V5 2016-09-09

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public String add(HttpServletRequest request, @Valid People people,BindingResult br, MultipartFile file){} public String add(@Valid People people, MultipartFile file, BindingResult br,HttpServletRequest request){} 求解，第一种传参顺序可以校验数据，能跳回到表单页面；第二种传参，如果是校验失败进不了该方法，浏览器直接400错误。这是为什么

3Jinnnnn 2016-08-04

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把工程的编码改成UTF-8试试，我之前在GBK的编码下怎么修改页面都没有错误信息，改成UTF-8后就有了。。。。。shit

xshirmp 2016-04-29

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使用spring 4.0+的，安装官网配置，没问题

gouldZh 2015-12-29

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可以将UserController类中属性List上，加入@Valid的注解即可

gouldZh 2015-12-29

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楼主，请问现在发现问题的原因了吗，我也卡在这里了

叽叽咕咕嘻嘻啦啦 2015-12-23

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是不是用的tomcat6,Hibernate Valid5.x和tomcat6有点冲突.我用4.3.2就没问题了.

weixin_32073519 2015-11-30

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引用 9 楼 duocairens的回复:

应该是使用了myeclipse2014的原因

是的，我的也是2014 验证不起作用

duocairens 2015-08-08

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应该是使用了myeclipse2014的原因

lorabit_cn 2015-06-03

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添加hibernate-validator-4.3.1.Final.jar

梦起的地方 2015-05-28

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楼主，问一下，你那个问题解决了吗？？？

豫让_______ 2015-04-08

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验证器 org.springframework.validation.beanvalidation 是这个包里的， <mvc:annotation-driven validator="validator" />通知spring注解的方式注入validator 比如你的@Size @NotEmpty这些就自动注入了 <bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean"> <property name="validationMessageSource" ref="messageSource" /> </bean> 中间那个property是配置国际化。

lshxqyj1 2015-04-07

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问题解决了么? 通用出现了此问题, jar包配置文件都配好了.就是不校验. 不知道上面问题? 楼主解决了吗? 怎么解决的?

smallblood 2015-03-05

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引用 3 楼 fangmingshijie 的回复:

按说 <mvc:annotation-driven/>会自动注册验证器的，你先手动加上看看。应该是localValidatorFactoryBean这个类，具体的自己搜索下。

加入

 <bean id="validator"
          class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean" />

后报错异常信息

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping#0': Invocation of init method failed; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Error loading class [org.springframework.validation.beanvalidation.LocalValidatorFactoryBean] for bean with name 'validator' defined in ServletContext resource [/WEB-INF/spring-servlet.xml]: problem with class file or dependent class; nested exception is java.lang.NoClassDefFoundError: javax/validation/ValidatorFactory
Related cause: org.springframework.beans.factory.CannotLoadBeanClassException: Error loading class [org.springframework.validation.beanvalidation.LocalValidatorFactoryBean] for bean with name 'validator' defined in ServletContext resource [/WEB-INF/spring-servlet.xml]: problem with class file or dependent class; nested exception is java.lang.NoClassDefFoundError: javax/validation/ValidatorFactory

localValidatorFactoryBean不是spring-context包里的么，为什么会去另一个包查，然后报找不到

花谢尊前不敢香 2015-03-05