当我遇到这个奇怪的错误时，我正在开发一个简单的 CRUD 应用程序。奇怪的是，因为在我的 Controller 类中，方便的 @RequestMapping 注释方法与请求 GET 方法映射一起存在。请求的 URI 为 [context]/purchase/change/2。错误如下:
org.springframework.web.servlet.PageNotFound - Request method 'GET' not supported
这是我的 Controller :
@Controller
@RequestMapping("/purchase")
public class PurchasesController {
//...
@RequestMapping(value = "/add/{userId}", method = RequestMethod.GET)
public String addPurchase(Model model, @PathVariable int userId) {
//that method works with mapping ex. "context/purchase/add/1"
return "purchase_update_add";
}
@RequestMapping(value = "/add/{userId}", method = RequestMethod.POST)
public String addPurchase(
@ModelAttribute("purchase") PurchaseDTO purchaseDto,
@PathVariable int userId) {
//that works too
return "redirect:/user/" + userId;
}
@RequestMapping(value = "/change/${purchaseId}", method = RequestMethod.GET)
public String changePurchaseDate(Model model, @PathVariable int purchaseId) {
model.addAttribute("operation", "change");
PurchaseDTO purchase = new PurchaseDTO();
Purchase purchaseEntity = purchasesDAO.getPurchase(purchaseId);
purchase.setDate(purchaseEntity.getDate());
purchase.setId(purchaseId);
model.addAttribute("purchase", purchase);
return "purchase_update_add";
}
@RequestMapping(value = "/change/{userId}", method = RequestMethod.POST)
public String changePurchaseDate(
@ModelAttribute("purchase") PurchaseDTO purchaseDto,
@PathVariable int userId) {
Purchase purchase = purchasesDAO.getPurchase(purchaseDto.getId());
purchase.setDate(purchaseDto.getDate());
purchasesDAO.updatePurchase(purchase);
return "redirect:/user/" + userId;
}
最佳答案
您已经使用 ${...} 语法创建了一个路径变量:
@RequestMapping(value = "/change/${purchaseId}", method = RequestMethod.GET)
^ $ is redundant
请使用正确的 {...} 语法:
@RequestMapping(value = "/change/{purchaseId}", method = RequestMethod.GET)
关于java - 请求方法 'GET' 不受支持，但它实际上存在于 Controller 中，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35274501/