RedirectView 在 Spring 4.1 上无法识别 @RequestParam

Question

以下代码适用于 Spring Boot 1.1.10(Spring 4.0.8) 但不适用于 1.2.1(Spring 4.1.4)

DefaultController.java

@Controller
@RequestMapping(value = "/")
public class DefaultController {

    @RequestMapping(method= RequestMethod.GET)
    public RedirectView show(Map<String, Object> model) throws MissingServletRequestParameterException {
        model.put("req", "expected");
        return new RedirectView("redirect");
    }
}

RedirectController.java

@Controller
@RequestMapping(value = "/redirect")
public class RedirectController {
    private static final Logger logger = LoggerFactory.getLogger(RedirectController.class);

    @RequestMapping(method= RequestMethod.GET)
    public String show(@RequestParam("req") String req) throws MissingServletRequestParameterException {
        logger.info("parameter is {}", req);
        return "/redirect";
    }
}

build.gradle 中的依赖项如下：

dependencies {
    compile 'org.springframework.boot:spring-boot-starter-thymeleaf:' + version + '.RELEASE'
    compile 'org.springframework.boot:spring-boot-starter-security:' + version + '.RELEASE'
}

将版本设置为“1.1.10”它工作正常，但是当设置为“1.2.1”时，出现错误消息：

Wed Jan 21 16:13:45 JST 2015
There was an unexpected error (type=Bad Request, status=400).
Required String parameter 'req' is not present

如何在 Spring 4.1.4 上使用带参数的 RedirectView？

谢谢，

Answer 1

您可以像这样在 DefaultController 方法中使用 RedirectAttributes：

@RequestMapping(method= RequestMethod.GET)
public RedirectView show(Map<String, Object> model, RedirectAttributes redirectAttributes) throws MissingServletRequestParameterException {
    redirectAttributes.addAttribute("req","foo");
    return new RedirectView("redirect");
}

RedirectView 在 Spring 4.1 上无法识别 @RequestParam

RedirectView doesn't recognize @RequestParam on Spring 4.1

spring

spring-mvc