与Thymeleaf的圆形视图问题

Question

我遇到了一个问题，我在使用百日咳和Springboot的junit测试中遇到循环视图错误

我的测试如下使用路径变量：

@Test
public void testPostEditErrorsExit() throws Exception {
    when(bindingResult.hasErrors()).thenReturn(true);

    mockMvc.perform(post("/edit/{messageId}", 12345))
    .andExpect(status().isOk()).andExpect(view().name("/messages/edit-message"));
}

控制器帖子如下：

@Controller
@RequestMapping("/edit")
public class UpdateController {

    @PostMapping("/{messageId}")
    public String postEditMessage(@PathVariable String messageId,
            @ModelAttribute("siteMessage") @Valid SiteMessage siteMessage, BindingResult result, Model model,
            RedirectAttributes attributes) {

        String view;

        if (result.hasErrors()) {
            view = "/edit/" + messageId;
        } else {}

        return view;
}
}

错误是：Error rendering view [org.springframework.web.servlet.view.InternalResourceView: unnamed; URL [/edit/12345]] in DispatcherServlet with name ''

javax.servlet.ServletException: Circular view path [/edit/12345]: would dispatch back to the current handler URL [/edit/12345] again. Check your ViewResolver setup! (Hint: This may be the result of an unspecified view, due to default view name generation.)