我有一个简单的控制器，用于post请求，之后我想重定向到另一个页面。这是控制器：
@Controller
public class NoteController {
private NoteService noteService;
private UserService userService;
public NoteController(NoteService noteService, UserService userService) {
this.noteService = noteService;
this.userService = userService;
}
@PostMapping("/notes")
public String postNote(@ModelAttribute Note noteForm, Authentication authentication, Model model) {
User user = this.userService.getUser(authentication.getName());
Integer userid = user.getUserId();
try {
noteService.createNote(noteForm, userid);
model.addAttribute("success",true);
model.addAttribute("message","New note added!");
} catch (Exception e) {
model.addAttribute("error",true);
model.addAttribute("message","System error!" + e.getMessage());
}
return "redirect:/result";
}
}在一个成功的请求之后，我可以看到一个项目被保存在db中，重定向失败，我得到一条消息：
出现意外错误（类型=未找到，状态=404）。无可用消息
终端没有错误。所以，我不明白为什么会这样。我对spring和java完全陌生，所以我不知道我在这里做错了什么？
更新
我尝试过为结果模板创建一个控制器，如答案中所建议的那样。
@Controller
@RequestMapping("/result")
public class ResultController {
@GetMapping()
public String getResultPage() {
return "result";
}
}如果我从notecontroller执行重定向，如下所示：
@PostMapping("/notes")
public String postNote(@ModelAttribute Note noteForm, Authentication authentication, Model model) {
User user = this.userService.getUser(authentication.getName());
Integer userid = user.getUserId();
try {
noteService.createNote(noteForm, userid);
model.addAttribute("success",true);
model.addAttribute("message","New note added!");
} catch (Exception e) {
model.addAttribute("error",true);
model.addAttribute("message","System error!" + e.getMessage());
}
return "redirect:result";
}我被重定向到结果模板，但没有传递属性：
<html lang="en" xmlns="http://www.w3.org/1999/xhtml" xmlns:th="https://www.thymeleaf.org">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<link rel="stylesheet" type="text/css" media="all" th:href="@{/css/bootstrap.min.css}">
<title>Result</title>
</head>
<body class="p-3 mb-2 bg-light text-black">
<div class="container justify-content-center w-50 p-3" style="margin-top: 5em;">
<div class="alert alert-success fill-parent" th:if="${success}">
<h1 class="display-5">Success</h1>
<span th:text="${message}">Success Message</span>
<span>Your changes were successfully saved. Click <a th:href="@{/home}">here</a> to continue.</span>
</div>
<div class="alert alert-danger fill-parent" th:if="${error}">
<h1 class="display-5">Error</h1>
<span>Your changes were not saved</span>
<span th:text="${message}">Error Message</span>
<span>Click <a th:href="@{/home}">here</a> to continue.</span>
</div>
</div>
</body>
</html>如何将属性传递给此模板？
1条答案
按热度按时间jk9hmnmh1#
你必须创建一个
/result控制器中的终结点。spring不可能自动生成端点。