spring - 使用 thymeleaf 请求参数

Question

在 Spring Boot Web 应用程序中，用户想要重置密码，因此他进入重置密码页面。现在我想让他输入他的电子邮件地址，按 Reset，然后我想重定向到 myapp/resetPassword?email=HIS_EMAIL 来处理密码重置。

我的代码:

@RequestMapping(value = "/resetPassword", method = RequestMethod.GET)
public String resetPasswordForm(Model model){
    model.addAttribute("email", new String());
    return "resetPassword";
}

@RequestMapping(value = "/resetPassword", method = RequestMethod.POST)
public String resetPassword(@RequestParam("email") String email) {
    User user = userService.findUserByEmail(email);
    //playing with logic
    return "redirect:/";
}

如何在我的 thymeleaf 页面上实现它？我尝试过这样的事情:

<form th:action="@{/resetPassword(email=${email})}" method="post">
    <input type="email" th:field="${email}" th:placeholder="Email" />
        <div class="clearfix">
            <button type="submit">Reset</button>
        </div>
</form>

不幸的是，我的电子邮件始终为空。有人可以帮忙吗？

Answer 1

“th:field”仅适用于Entity-Beans。这应该有效:

@GetMapping(value = "/resetPassword")
public String resetPassword(@RequestParam(value="email",required=false) String email) {
    if(email==null)
        return "resetPassword";
    User user = userService.findUserByEmail(email);
    //playing with logic
    return "redirect:/";     
}

<form th:action="@{/resetPassword}" method="get">
    <input type="email" th:name="email" th:placeholder="Email" />
    <div class="clearfix">
        <button type="submit">Reset</button>
    </div>
</form>

不要忘记:Thymeleaf 不是 Javascript。它是在服务器上渲染的。像 @{/resetPassword(email=${email})} 这样的东西会输出例如/resetPassword?email=anValueYouAddedToModelInController