grails控制器呈现错误 [英] grails controllers render errors
本文介绍了grails控制器呈现错误的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
class Person {
String name
Integer age
String street
String email
}
class PersonController {
def save = {
def personInstance = new Person(params)
personInstance.save(flush:true)
}
}
main.gsp
<g:form controller="person" action="save">
<g:textField name="name" />
<g:textField name="age" />
<g:textField name="street" />
<g:textField name="email" />
<g:submitButton name="save" value="Save" />
</g:form>
我必须在控制器和gsp页面中进行哪些修改, gsp page?
What modifications do i have to make in both the controller and the gsp page to render the errors to the gsp page?
推荐答案
将控制器操作更改为
def save = {
def personInstance = new Person(params)
if (!personInstance.save(flush: true)) {
render view: 'create', model: [personInstance: personInstance]
return
}
flash.message = "${message(code: 'default.created.message', args: [message(code: 'person.label', default: 'Person'), personInstance.id])}"
redirect action: 'show', id: personInstance.id
}
并在< g:form>
p>
and add this just before your <g:form>
:
<g:hasErrors bean="${personInstance}">
<div class="errors">
<g:renderErrors bean="${personInstance}" as="list" />
</div>
</g:hasErrors>
考虑运行 grails generate-all packagename.Person
并编辑生成的控制器和GSP。当然,首先你的方式。
Consider running grails generate-all packagename.Person
and editing the generated controller and GSPs. Of course move yours out of the way first.
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