Validation 验证和自由标记
我们必须在页面上进行验证，如果是空字段，则显示消息。 这是我的类，控制器的方法和消息的设置。 我无法在页面上获取Freemarker显示错误消息Validation 验证和自由标记,validation,message,freemarker,Validation,Message,Freemarker,我们必须在页面上进行验证，如果是空字段，则显示消息。 这是我的类，控制器的方法和消息的设置。 我无法在页面上获取Freemarker显示错误消息 public class CreateCourseDTO { @NotEmpty private String name; @NotEmpty private String category; @NotEmpty private String description; @NotEmpty private String links; p
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() ) {
public类创建CoursedTo{
@空空如也
私有字符串名称；
@空空如也
私有字符串类别；
@空空如也
私有字符串描述；
@空空如也
私有字符串链接；
公共课程{
}
NotEmpty.createCourseDTO.name=名称是必需的！
NotEmpty.createCourseDTO.category=类别是必需的！
NotEmpty.createCourseDTO.description=需要说明！
NotEmpty.createCourseDTO.links=需要链接！
@RequestMapping（value=“/create”，method=RequestMethod.POST，参数={
“名称”、“类别”、“说明”、“链接”}）
公共字符串createCoursePost（模型、HttpSession会话、，
HttpServletRequest请求，@Valid CreateCourseDTO CreateCourseDTO，
BindingResult（结果）{
model.addAttribute（“电子邮件”，session.getAttribute（“电子邮件”）；
字符串title=request.getParameter（“名称”）；
字符串描述=request.getParameter（“描述”）；
字符串链接=request.getParameter（“链接”）；
字符串category=request.getParameter（“category”）；
if（result.hasErrors（））{
<#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>
.错误{
颜色：#ff0000；
}
.errorblock{
颜色：#000；
背景色：#ffEEEE；
边框：3倍实心#ff0000；
填充：8px；
利润率：16px；
}
创建课程
${eMail}
名称
类别
${category.category}
描述
链接
创造
直到这一切发生
<#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>
创建课程
${eMail}
名称
类别
${category.category}
描述
链接
创造
<bean id="viewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver"
p:cache="true" p:prefix="/pages/" p:suffix=".ftl" p:exposeSpringMacroHelpers="true"/>