验证和Freemarker [英] Validation and Freemarker
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问题描述
如果要显示一条消息，则必须在页面上进行验证. 这是我的课程，控制器的方法和消息的设置. 我无法进入页面Freemarker显示错误消息.
We have to do validation on the page, in the case of empty fields to display a message. It's my class, the method of the controller and settings of messages. I can't to get on the page Freemarker display error messages.
public class CreateCourseDTO {
@NotEmpty
private String name;
@NotEmpty
private String category;
@NotEmpty
private String description;
@NotEmpty
private String links;
public CreateCourseDTO() {
}
NotEmpty.createCourseDTO.name = Name is required!
NotEmpty.createCourseDTO.category = Category is required!
NotEmpty.createCourseDTO.description = Description is required!
NotEmpty.createCourseDTO.links = Links is required!
<bean class="org.springframework.context.support.ResourceBundleMessageSource"
id="messageSource">
<property name="basename" value="messages" />
</bean>
@RequestMapping(value = "/create", method = RequestMethod.POST, params = {
"name", "category", "description", "links" })
public String createCoursePost(Model model, HttpSession session,
HttpServletRequest request, @Valid CreateCourseDTO createCourseDTO,
BindingResult result) {
model.addAttribute("eMail", session.getAttribute("eMail"));
String title = request.getParameter("name");
String description = request.getParameter("description");
String links = request.getParameter("links");
String category = request.getParameter("category");
if (result.hasErrors() ) {
如何修复freemarker页面?
How do I fix freemarker page?
<#import "/spring.ftl" as spring />
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8"/>
<link rel="stylesheet" type="text/css" href="./css/style.css"/>
<style>
.error {
color: #ff0000;
}
.errorblock {
color: #000;
background-color: #ffEEEE;
border: 3px solid #ff0000;
padding: 8px;
margin: 16px;
}
</style>
</head>
<body>
<div class="container">
<header>
<h1>
Create Course
<div class="logout">
<span id="currentUserLogin">
${eMail}
</span>
<a href="logout.html">
<i class="icon-off"></i>
</a>
</div>
</h1>
</header>
<form class="form-horizontal" commandName="createCourseDTO" method=POST>
<fieldset>
<div class="control-group">
<label class="control-label">Name</label>
<div class="controls">
<input id="name" name="name" class="span5" type="text"/>
<@spring.showErrors "<br>" />
</div>
</div>
<div class="control-group">
<label class="control-label">Category</label>
<div class="controls">
<select id="category" name="category" class="span5">
<option></option>
<#list listCategories as category>
<option>${category.category}</option>
</#list>
</select>
<@spring.showErrors "<br>" />
</div>
</div>
<div class="control-group">
<label class="control-label">Description</label>
<div class="controls">
<textarea id="description" name="description" class="span5" rows="3"></textarea>
<@spring.showErrors "<br>" />
</div>
</div>
<div class="control-group">
<label class="control-label">Links</label>
<div class="controls">
<textarea id="links" name="links" class="span5" rows="3"></textarea>
<@spring.showErrors "<br>" />
</div>
</div>
<div class="form-actions">
<button id="createButton" name="createButton" class="btn btn-primary" type="submit">Create</button>
</div>
</fieldset>
</form>
<a class="btn" href="courses.html">Cancel</a>
</div>
推荐答案
直到发生这种情况.
<#import "/spring.ftl" as spring />
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8"/>
<link rel="stylesheet" type="text/css" href="./css/style.css"/>
</head>
<body>
<div class="container">
<header>
<h1>
Create Course
<div class="logout">
<span id="currentUserLogin">
${eMail}
</span>
<a href="logout.html">
<i class="icon-off"></i>
</a>
</div>
</h1>
</header>
<form action="create" method="POST"/>
<fieldset>
<@spring.bind "сreateCourseDTO" />
<@spring.showErrors '*', 'errors' />
<div class="control-group">
<label class="control-label">Name</label>
<div class="controls">
<@spring.formInput "createCourseDTO.name" ""/>
<@spring.showErrors '<br>',"error" />
</div>
</div>
<div class="control-group">
<label class="control-label">Category</label>
<div class="controls">
<@spring.formSingleSelect "createCourseDTO.category" categoryList "" />
<option></option>
<#list listCategories as category>
<option>${category.category}</option>
</#list>
</select>
<@spring.showErrors "createCourseDTO.category","error" />
</div>
</div>
<div class="control-group">
<label class="control-label">Description</label>
<div class="controls">
<@spring.formInput "createCourseDTO.description"/>
<@spring.showErrors "createCourseDTO.description","error" />
</div>
</div>
<div class="control-group">
<label class="control-label">Links</label>
<div class="controls">
<@spring.formInput "createCourseDTO.links"/>
<@spring.showErrors "createCourseDTO.links","error" />
</div>
</div>
<div class="form-actions">
<button id="createButton" name="createButton" class="btn btn-primary" type="submit">Create</button>
</div>
</fieldset>
</form>
<a class="btn" href="courses.html">Cancel</a>
</div>
</body>
</html>
引发错误
==>分配:status = springMacroRequestContext.getBindStatus(path)[在第120行中，spring.ftl中的第9列] 在用户指令绑定中[第159行，spring.ftl中的第5列] 在用户指令spring.formInput中[在第33行，pages/create.ftl中的第15列]
==> assignment: status=springMacroRequestContext.getBindStatus(path) [on line 120, column 9 in spring.ftl] in user-directive bind [on line 159, column 5 in spring.ftl] in user-directive spring.formInput [on line 33, column 15 in pages/create.ftl]
在线< @ spring.formInput"createCourseDTO.name""/>
on line <@spring.formInput "createCourseDTO.name" ""/>
我有固定的垃圾箱
<bean id="viewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver"
p:cache="true" p:prefix="/pages/" p:suffix=".ftl" p:exposeSpringMacroHelpers="true"/>
这篇关于验证和Freemarker的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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