如何为 Thymeleaf 中的输入字段添加默认值 [英] How to add default values to input fields in Thymeleaf

问题描述

我正在 Spring 中编程并使用 Thymeleaf 作为我的视图，并且正在尝试创建一个表单，用户可以在其中更新他们的个人资料.我有一个个人资料页面，其中列出了用户的信息(名字、姓氏、地址等)，并且有一个链接显示编辑个人资料".当点击该链接时，他们会将他们带到一个表单，在那里他们可以编辑他们的个人资料.该表单由他们可以输入的文本字段组成，就像您的标准注册表单一样.

I am programming in Spring and using Thymeleaf as my view, and am trying to create a form where users can update their profile. I have a profile page which lists the user's information (first name, last name, address, etc), and there is a link which says "edit profile". When that link is clicked it takes them to a form where they can edit their profile. The form consists of text fields that they can input, just like your standard registration form.

一切正常，但我的问题是，当点击该链接时，如何将用户的信息添加到输入字段中，以便它已经存在，并且他们只修改他们想要更改的内容，而不必修改重新输入所有字段.

Everything works fine, but my question is, when that link is clicked, how do I add the user's information to the input fields so that it is already present, and that they only modify what they want to change instead of having to re-enter all the fields.

这应该像标准的编辑个人资料"页面一样.

This should behave just like a standard "edit profile" page.

这是我的 edit_profile.html 页面的一部分:

Here is a segment of my edit_profile.html page:

名字:

这是返回edit_profile.html页面的视图控制器方法:

Here is the view controller method that returns edit_profile.html page:

@RequestMapping(value = "/edit", method = RequestMethod.GET)
    public String getEditProfilePage(Model model) {
        model.addAttribute("currentUser", currentUser);
        System.out.println("current user firstname: " + currentUser.getFirstname());
        model.addAttribute("user", new User());
        return "edit_profile";
    }

currentUser.getFirstname() 打印出预期值，但我在表单中得到空白输入值.

currentUser.getFirstname() prints out the expected value, but I'm getting blank input values in the form.

谢谢.

推荐答案

通过完全删除 th:field 并改为使用 th:value 来存储默认值解决了问题值，以及模型字段的 html name 和 id.所以name 和id 就像th:field.

Solved the problem by removing th:field altogether and instead using th:value to store the default value, and html name and id for the model's field. So name and id is acting like th:field.

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