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有什么办法可以在Spring MVC上使用注释在多个提交按钮上创建表单？

问题内容：

我正在尝试使用基于注释的Spring MVC创建简单的添加/删除表单。“添加”功能进展顺利，但是当我尝试添加另一个按钮以形成表单时，我陷入了困境。

这是我的代码：

控制器动作：

@RequestMapping(value = "/books/documentType.do", method = RequestMethod.GET)
public String getDocType(
        @RequestParam(required = false, value = "id") Long id,
        ModelMap model) {

    DocTypeDTO docType = new DocTypeDTO();
    if (id != null)
        docType = docTypeConverter.getDTO(id);
    model.addAttribute("docType", docType);
    return "/books/documentType";
}

@RequestMapping(value = "/books/documentType.do", method = RequestMethod.POST)
public String setDocType(
        @ModelAttribute("docType") DocTypeDTO docType,
        BindingResult result,
        SessionStatus sessionStatus
) {
    docTypeValidator.validate(docType, result);
    if (result.hasErrors())
        return "/books/documentType";
    else {
        docTypeConverter.saveDTO(docType);
        sessionStatus.setComplete();
        return "redirect:/books/documentTypes.do";
    }

}

标记完好的表格：

<form:form method="post" commandName="docType" id="editForm">
<table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#dbdbdb">
    <tr>
        <td></td>
        <td>
            <table border="0" cellspacing="0" cellpadding="0" width="100%">
                <tr>
                    <td class="spacer"><img src="/images/spacer.gif" width="116" height="1" border="0"/></td>
                    <td class="spacer"><img src="/images/spacer.gif" width="216" height="1" border="0"/></td>
                </tr>

                <tr>
                    <td class="form-cell-text-underlined">Отображать на сайте</td>
                    <td colspan="2">
                        <form:checkbox path="shownOnSite"/>
                    </td>
                </tr>

                <tr>
                    <td class="form-cell-text-underlined">Международный</td>
                    <td colspan="2">
                        <form:checkbox path="international"/>
                    </td>
                </tr>

                <tr>
                    <td class="form-cell-text-underlined">Внутренний код</td>
                    <td colspan="2">
                        <form:input path="internalCode"/>
                    </td>
                </tr>

                <tr>
                    <td class="form-cell-text-underlined">Код</td>
                    <td colspan="2">
                        <form:input path="code"/>
                        <form:errors path="code"/>
                    </td>
                </tr>

                <tr>
                    <td class="form-cell-text-underlined">Код IATA</td>
                    <td colspan="2">
                        <form:input path="codeIATA"/>
                    </td>
                </tr>

                <tr>
                    <td class="padded-underlined">Название</td>

                    <td colspan="2">
                        <form:input path="name"/>
                        <form:errors path="name"/>
                    </td>
                </tr>

                <tr>
                    <td class="padded-underlined">Название(Англ.)</td>

                    <td colspan="2">
                        <form:input path="nameEn"/>
                    </td>
                </tr>

                <tr>
                    <td colspan="3">
                        <input type="submit" value="Сохранить">
                    </td>
                </tr>

            </table>
        </td>
        <td></td>
    </tr>
</table>

谢谢！


问题答案：

对于Spring MVC 3，仅JSP和Controller就可以做到这一点。例如，这两个提交按钮处理“上一个”和“保存”操作：

<input value="Save" name="save" type="submit" id="btnSave" class="submit_button">
<input value="Previous" name="previous" type="submit" id="btnPrevious" class="submit_button">

然后，在控制器中，您将输入名称与控制器“地址”一起接受为请求映射中的参数：

@RequestMapping(value="thisForm.form", params="save")
public String save() {
    // save
}

@RequestMapping(value="thisForm.form", params="previous")
public String doPreviousStuff() {
    // get mapping for previous page and return
}