springmvc 整合数据验证框架 jsr

1、maven

 <dependency>

        <groupId>javax.validation</groupId>

        <artifactId>validation-api</artifactId>

        <version>1.1..Final</version>

    </dependency>

    <dependency>

        <groupId>org.hibernate</groupId>

        <artifactId>hibernate-validator</artifactId>

        <version>4.2..Final</version>

    </dependency>

     <dependency>

        <groupId>org.slf4j</groupId>

        <artifactId>slf4j-log4j12</artifactId>

        <version>1.7.</version>

    </dependency>

    <dependency>

        <groupId>junit</groupId>

        <artifactId>junit</artifactId>

        <version>4.11</version>

        <scope>test</scope>

    </dependency>

    <dependency>

        <groupId>org.aspectj</groupId>

        <artifactId>aspectjweaver</artifactId>

        <version>1.8.</version>

    </dependency>

2、修改配置文件applicationContex.xml

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

        <property name="providerClass"  value="org.hibernate.validator.HibernateValidator"/>

        <!--不设置则默认为classpath下的 ValidationMessages.properties -->

        <property name="validationMessageSource" ref="validatemessageSource"/>

    </bean>

    <bean id="conversion-service" class="org.springframework.format.support.FormattingConversionServiceFactoryBean" />

    <bean id="validatemessageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource">

        <property name="basename" value="classpath:validatemessages"/>

        <property name="fileEncodings" value="utf-8"/>

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

    </bean>

<mvc:annotation-driven validator="validator" />

validator="validator"是上面定义的id

3、新建validationMessages.properties 文件放到resources文件夹中，内容如下

name.not.empty=

111111内容可自定义

4、新建实体类

package com.db.pojo;

import javax.validation.constraints.NotNull;

import org.hibernate.validator.constraints.NotBlank;

import org.hibernate.validator.constraints.NotEmpty;

public class User {

    @NotEmpty(message="{name.not.empty}")

    private String userName;

    private String password;

    public String getUserName() {

        return userName;

    }

    public void setUserName(String userName) {

        this.userName = userName;

    }

    public String getPassword() {

        return password;

    }

    public void setPassword(String password) {

        this.password = password;

    }

}

name.not.empty 为validationMessages.properties里面配置的名称

@NotEmpty代表不能为空，可从网上查询其它验证标签

5、查看controller

    @RequestMapping(value="/userlogin", method = {RequestMethod.GET})

    public String userLogin(Model model){

        if(!model.containsAttribute("contentModel")){

            model.addAttribute("contentModel", new User());

        }

        return "userlogin";

    }

    @RequestMapping(value="/userlogin", method = {RequestMethod.POST})

    public String userLogin(@Valid  @ModelAttribute("contentModel")  User user, BindingResult result){

            Map<String, Object> map = new HashMap<String, Object>();

            if(result.hasErrors()){

                return "/userlogin";

            }

            else {

                 return "/index";

            }  

    }

6、jsp页面

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

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

<html>

<head>

<title>Reservation Form</title>  

<style>

.error {

    color: #ff0000;

    font-weight: bold;

}

</style>

</head>  

<body>

    <form:form method="post" modelAttribute="contentModel" action="userlogin">

        <form:errors path="*" cssClass="error" />

        <table>

            <tr>

                <td>Name</td>

                <td><form:input path="userName" />

                </td>

                <td><form:errors path="userName" cssClass="error" />

                </td>

            </tr>

            <tr>

                <td>password</td>

                <td><form:input path="password" />

                </td>

                <td><form:errors path="password" cssClass="error" />

                </td>

            </tr>  

            <tr>

                <td colspan=""><input type="submit" />

                </td>

            </tr>

        </table>

    </form:form>

</body>

</html>

访问http://****/userlogin 点击submit 按钮会提示 1111111（就是validationMessages.properties文件中配置的内容）

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springmvc 整合数据验证框架 jsr

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