Thymeleaf 将参数从 html 发送到控制器 [英] Thymeleaf send parameter from html to controller
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问题描述
我是 Thymeleaf 的新手.我正在尝试创建简单的 crud 应用程序.我正在尝试在删除按钮上删除 Customer 类的对象.如何将参数(例如 - id)设置为使用 Thymeleaf 调用 deleteUser 的方法.这是我的控制器.
I'm newbie in Thymeleaf. I'm trying to create simple crud application. I'm trying to delete object of Customer class on delete button. How can I set parameter(for example - id) to the method which called deleteUser using Thymeleaf. Here's my controller.
package controllers;
//imports
@Controller
public class WebController extends WebMvcConfigurerAdapter {
@Autowired
private CustomerDAO customerDAO;
@Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/results").setViewName("results");
}
//show all users
@RequestMapping(value="/users", method=RequestMethod.GET)
public String contacts(Model model) {
model.addAttribute("users",customerDAO.findAll());
return "list";
}
//show form
@RequestMapping(value="/users/add", method=RequestMethod.GET)
public String showForm(Customer customer) {
return "form";
}
//add user
@RequestMapping(value="/users/doAdd", method=RequestMethod.POST)
public String addUser(@RequestParam("firstName") String firstName,
@RequestParam("lastName") String lastName,
@RequestParam("lastName") String email) {
customerDAO.save(new Customer(firstName, lastName, email));
return "redirect:/users";
}
//delete user
@RequestMapping(value="users/doDelete/{id}", method = RequestMethod.POST)
public String deleteUser (@PathVariable Long id) {
customerDAO.delete(id);
return "redirect:/users";
}
}
这是我的看法.
<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>Getting Started: Serving Web Content</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
</head>
<body>
List of users
<a href="users/add">Add new user</a>
<table>
<tr>
<th>Id</th>
<th>First Name</th>
<th>Last Name</th>
<th>Email</th>
<th>Action</th>
</tr>
<tr th:each="user : ${users}">
<td th:text="${user.id}">Id</td>
<td th:text="${user.firstName}">First name</td>
<td th:text="${user.lastName}">Last Name</td>
<td th:text="${user.email}">Email</td>
<td>
<form th:action="@{/users/doDelete/}" th:object="${customer}" method="post">
<button type="submit">Delete</button>
</form>
</td>
</tr>
</table>
</body>
</html>
推荐答案
您不需要表单来执行此操作:
You do not need form to do this:
<td>
<a th:href="@{'/users/doDelete/' + ${user.id}}">
<span>Delete</span>
</a>
</td>这篇关于Thymeleaf 将参数从 html 发送到控制器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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