在控制器中未检测到以freemarker形式的Spring绑定

时间:2014-03-27 18:38:54

标签: java spring spring-mvc freemarker

我的表格声明如下:

  <form id="reply-form-frm" novalidate="novalidate" action="/reply/responsive" method="POST">
                [@spring.bind "model.form"/]

                [@spring.bind "model.form.message" /]

                <label for="${spring.status.expression}" class="clearfix" data-error="Please enter a message">
                    <span class="label-text">Your message</span>
                    <span class="set-right required-flag">Required</span>
                </label>

                <p class="input-error[#if spring.status.errorMessages?size > 0] reveal-error[#else] hide-error[/#if]">
                    [#if spring.status.errorMessages?size > 0]
                      <span>[#list spring.status.errorMessages as error]${error}[/#list]</span>
                    [/#if]
                </p>
                [@spring.formTextarea "model.form.message", 'aria-required="true" required="required" data-clear="true"' /]
   </form>

其他一些字段以相同的方式呈现。表单收到的模型是:

model: {
  form: {
    senderName: "hahahahaha",
    senderEmail: "asd@asd.es",
    advertId: 1000011793,
    optInMarketing: false,
    advertClickSource: "natural"
}

我的控制器有这种映射方法:

 public ModelAndView sendReplyResponsive(@ModelAttribute("model.form") ReplyForm replyForm,
                                            BindingResult bindingResult) {
    //TODO: content irrelevant ...
 }

问题是,当表单呈现时,元素映射到“form.message”而不是“model.form.message”,我的控制器无法在帖子上找到ReplyForm对象。

关于如何强制Spring使用“model.form.message”作为名称的任何想法?

1 个答案:

答案 0 :(得分:1)

简短回答 - 没有必要强迫使用弹簧&#34; model.form.message&#34;正如名字一样。

答案很长: Spring总是删除名称的第一部分(&#34; model&#34;在你的情况下)它不依赖于表示引擎,这个逻辑在org.springframework.web.servlet.support.BindStatus#BindStatus内编码。常见的方法是使用相同的模型进行渲染和绑定,在这种情况下,您应该: 1.使用&#34;模型&#34;绑定类:

public ModelAndView sendReplyResponsive(@ModelAttribute("model") ReplyModel model, BindingResult bindingResult) {
    ReplyForm replyForm = model.getForm();
    //TODO: content irrelevant ...
}

或2.将ReplyForm公开为独立模型属性:

<form id="reply-form-frm" novalidate="novalidate" action="/reply/responsive" method="POST">
    [@spring.bind "form.message" /]

    <label for="${spring.status.expression}" class="clearfix" data-error="Please enter a message">
        <span class="label-text">Your message</span>
        <span class="set-right required-flag">Required</span>
    </label>

    <p class="input-error[#if spring.status.errorMessages?size > 0] reveal-error[#else] hide-error[/#if]">
        [#if spring.status.errorMessages?size > 0]
          <span>[#list spring.status.errorMessages as error]${error}[/#list]</span>
        [/#if]
    </p>
    [@spring.formTextarea "form.message", 'aria-required="true" required="required" data-clear="true"' /]
</form>

模型将如下:

model: {
  form: {
    senderName: "hahahahaha",
    senderEmail: "asd@asd.es",
    advertId: 1000011793,
    optInMarketing: false,
    advertClickSource: "natural"
    }
},
form: {
    senderName: "hahahahaha",
    senderEmail: "asd@asd.es",
    advertId: 1000011793,
    optInMarketing: false,
    advertClickSource: "natural"
}

如果您的&#34;型号&#34;只包含表格然后没有理由保留它。 而控制器方法将是:

public ModelAndView sendReplyResponsive(@ModelAttribute("form") ReplyForm replyForm,
                                            BindingResult bindingResult) {
    //TODO: content irrelevant ...
}