Question

我正在处理一个表单在春天，它抱怨表单中只有一个变量（以前用过它，不知道为什么它停止工作，我之前和之后都没有java代码更改）< / p>

我的对象：

public class Store {

    private String implementation;

    private String name;

    private int replication;
    private String view;

    private List<String> remote;
    private List<String> clusters;

    private String cluster;
    private String type;

    // getters and setters
}

我的控制员：

@RequestMapping(value="/aaaaa", method=RequestMethod.GET)
public ModelAndView showForm() {
    ModelAndView model = new ModelAndView();
    model.addObject("implementations", implData);
    model.addObject("store", new Store());
    model.setViewName("nameOfView");
    return model;
}

@RequestMapping(value = "/aaaaa", method = RequestMethod.POST)
public ModelAndView processAddition(@ModelAttribute("store") Store store) {
   // some processing
}

我的JSP表单：

<form:form id="form" name="form" method="post" modelAttribute="store" action="/zzzzz">
    <fieldset>
        <div class="input select">
        <label for="implementation" >Implementation<span class="small">Choose implementation</span></label>
        <form:select name="implementation" path="implementation">
            <form:option value="">Choose Implementation</form:option>
            <c:forEach items="${implementations.keySet()}" var="impl">
                        <form:option value="${impl}"><c:out value="${impl}" /></form:option>
            </c:forEach>
         </form:select>
    </div>
    <div class="input select">
        <form:select id="cluster" name="cluster" path="cluster">
                <form:option value="">Choose Cluster</form:option>
        <c:forEach items="${implementations.get('aaaa').getClusters().keySet()}" var="cl">                              
                    <form:option value="${cl}"><c:out value="${cl}" /></form:option>
                </c:forEach>
            </form:select>
            <form:select id="type" name="type" path="type">
        <form:option value="">Cluster Type</form:option>
        <form:option value="new">New</form:option>
        <form:option value="old">Old</form:option>
        </form:select>
        <div style="display: none;" id="remote">
            <label>Remote Sites <span class="small">Available Remote Sites</span></label>
                <form:checkbox path="remote" id="remote" name="remote" value="" />
            <div id="append">
         **I am appending the "form:checkbox for remote dynamically here using javascript and for spring not to complain I added a empty checkbox on top, still it complains**                              
            </div>
            </div>
           <input style="margin-left: 150px; width: 125px; height: 30px;" class="button" type="submit" value="Add" />
    <div class="spacer"></div>
    </div>
    </div>
    </fieldset>
</form:form>

堆栈跟踪：

java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'remote' available as request attribute
    org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:141)
    org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getBindStatus(AbstractDataBoundFormElementTag.java:174)
    org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getPropertyPath(AbstractDataBoundFormElementTag.java:194)
    org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getName(AbstractDataBoundFormElementTag.java:160)
    org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.autogenerateId(AbstractDataBoundFormElementTag.java:147)
    org.springframework.web.servlet.tags.form.AbstractCheckedElementTag.autogenerateId(AbstractCheckedElementTag.java:78)
    org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.resolveId(AbstractDataBoundFormElementTag.java:138)
    org.springframework.web.servlet.tags.form.AbstractSingleCheckedElementTag.writeTagContent(AbstractSingleCheckedElementTag.java:82)
    org.springframework.web.servlet.tags.form.CheckboxTag.writeTagContent(CheckboxTag.java:52)
    org.springframework.web.servlet.tags.form.AbstractFormTag.doStartTagInternal(AbstractFormTag.java:102)
    org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:79)

任何帮助？

由于

Answer 1

您的请求/模型中没有“远程”对象。您需要添加它，但复选框列表也不起作用。

Spring 3抱怨表单中只有一个变量

1 个答案: