如何在Spring中将模型从视图传递到控制器？

Question

我有一个控制器

    @RequestMapping(value = "/admin/manage/{id}", method = RequestMethod.GET)
public ModelAndView goManage(@PathVariable int id) {
    UserAccount userAccount = userAccountService.findUserAccount(id);
    ModelAndView mav = new ModelAndView("admin/manage");
    mav.addObject("userAccount", userAccount);
    return mav;
}

我将userAccount模型传递给manage.jsp视图。在视图中我显示此模型。例如：

<div id="info">
    <label>Login:</label><label>${userAccount.userDto.username}</label><br />
    <label>Name:</label><label>${userAccount.userDto.firstName}
        ${userAccount.userDto.lastName}</label>
</div>
    <form:form
        action="${pageContext.request.contextPath}/admin/go"
        modelAttribute="userAccount" method="post">
        <input class="myButton" type="submit" value="Go" />
    </form:form>

没关系，但是当我点击按钮Go时，我希望将此模型的userAccount从视图传递到下一个控制器。我上面的表单实现不起作用。我如何从视图传递对象？有可能吗？

@RequestMapping(value = "/admin/go", method = RequestMethod.POST)
public ModelAndView goWithDrawalInvestment(
        @ModelAttribute("userAccount") UserAccount userAccount) {
        userAccount.setBalance(0);
        mav.addObject("userAccount", userAccountDto);
        return mav;
}