spring-mvc学习整理 form validation

使用@Valid annatation的表单校验

需要引入的依赖：

javax.validation.validation-api-1.0.0.GA.jar 校验标准接口

hibernate-annotations-3.4.0.GA.jar，hibernate-validator-4.0.1.GA.jar hibernate提供的实现包

slf4j-api-1.5.0.jar，slf4j-nop-1.5.0.jar 日志依赖包

1.pojo Form

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public class LeadsForm {
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    /**
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     * <a href="http://my.oschina.net/u/244147" target="_blank" rel="nofollow">@see</a> javax.validation.constraints.NotNull 使用标准中的注释类
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     */
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    <a href="http://my.oschina.net/notnull" target="_blank" rel="nofollow">@NotNull</a>
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    @Size()
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    private String contactName;
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    <a href="http://my.oschina.net/notnull" target="_blank" rel="nofollow">@NotNull</a>
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    @Pattern(regexp = "^1\\d{10}$")
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    private String contactTel;
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    //~~GETTERS && SETTERS
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}
2.controller

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/**
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* Renhenet.com Inc.
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* Copyright (c) 2004-2012 All Rights Reserved.
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*/
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package com.renhenet.web;
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import javax.validation.Valid;
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import org.springframework.stereotype.Controller;
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import org.springframework.ui.ModelMap;
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import org.springframework.validation.BindingResult;
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import org.springframework.web.bind.annotation.ModelAttribute;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestMethod;
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import sample.LeadsForm;
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/**
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*
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* <a href="http://my.oschina.net/arthor" target="_blank" rel="nofollow">@author</a> xiaoxia.dong
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* @version $Id: PostController.java,v 1.1 2012/08/10 14:38:11 dongxx Exp $
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*/
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@Controller
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@RequestMapping("/post.html")
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public class PostController {
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    @ModelAttribute("leadsForm")
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    public void modelAttribute(LeadsForm leadsForm) {
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    }
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    //使用 @Valid
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    @RequestMapping(method = RequestMethod.POST)
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    public String processSubmit(@Valid LeadsForm leadsForm, BindingResult result, ModelMap map) {
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        if (result.hasErrors()) {
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        }
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        return "post";
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    }
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}
使用@Valid annatation 就不用在xml文件中配置 validator。其实使用了接口org.springframework.validation.Validator，默认实现类org.springframework.validation.beanvalidation.LocalValidatorFactoryBean

3.使用velocity模板，建立macro。spring的RequestContext可以通过$springMacroRequestContext变量在velocity中使用。

另外error.code刚好是@NotNull @Pattern等的类名

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#macro( getErrorCode $objectName $field)
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#set($errors = $springMacroRequestContext.getErrors($objectName))#if($errors && $errors.fieldErrors && $errors.fieldErrors.size()>0)#foreach($e in $errors.fieldErrors)#if("$!field"=="$e.field")$e.code#end#end#end
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#end
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#macro( Pattern $objectName $field $message)
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    #if("#getErrorCode($objectName,$field)"=="Pattern")
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        $!message
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    #end
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#end
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#macro( NotNull $objectName $field $message)
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    #if("#getErrorCode($objectName,$field)"=="NotNull")
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        $!message
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    #end
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#end
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#macro( Size $objectName $field $message)
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    #if("#getErrorCode($objectName,$field)"=="Size")
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        $!message
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    #end
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#end
模板页面这样使用

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<form class="form-horizontal" method="post">
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<fieldset>
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    <legend>快速报名</legend>
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    <div class="control-group">
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      <label class="control-label" for="input01">姓名</label>
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      <div class="controls">
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        <input type="text" class="input-xlarge" name="contactName" value="$!leadsForm.contactName">
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        <p class="help-block">字母，数字，汉字皆可 #getErrorCode("leadsForm","contactName")</p>
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      </div>
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    </div>
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    <div class="control-group">
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      <label class="control-label" for="input01">手机号码</label>
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      <div class="controls">
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         <input type="text" class="input-xlarge" name="contactTel">
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        <p class="help-block">#Pattern("leadsForm","contactTel","手机号码的格式不正确")</p>
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      </div>
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    </div>
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    <div class="control-group">
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      <label class="control-label" for="input01">地址</label>
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      <div class="controls">
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         <select name="contactRegion" id="user_region" onchange='select_region("user_hot","H",this.value)' class="span2">
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         <option value="">-请选择-</option>
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         </select>
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         #NotNull("leadsForm","contactRegion","请选择地区")
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         <select name="contactRegionHot" id="user_hot" class="span2">
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  &nb

补充：软件开发 , Java ,