此網頁有Spring MVC中重定向循環

Question

我與這種奇怪的行爲此網頁有重定向循環掙扎，我在主頁的鏈接

<a href='<spring:url value="/url?view=offers" />'>offers</a> 

和我的控制器是

@Controller 
public class OfferController { 

    @Autowired 
    private OfferService offerService; 
    @RequestMapping(value = "/url", method = RequestMethod.GET) 
    public String showOffers(@RequestParam("view") String view, Model model) { 

     model.addAttribute("offers", offerService.findAll()); 
     return "redirect:/url?view=offers"; 
    } 
} 

上面這段代碼是造成這個問題的，上面的代碼有什麼問題。

Answer 1

您有一個/ url URL映射，然後在訪問/ url後，代碼將其重定向到/ url？view = offers。這就是你得到重定向循環的原因。

也許這是你的目的：

@Controller 
public class OfferController { 

    @Autowired 
    private OfferService offerService; 
    @RequestMapping(value = "/url", method = RequestMethod.GET) 
    public String showOffers(@RequestParam(value = "view", defaultValue = "offers") String view, Model model) { 
     model.addAttribute("offers", offerService.findAll()); 
     return "url"; 
    } 
}