Grails 4升级后，我的URL映射和拦截器不再工作

Question

我试图将3.3.x升级到4.0.13，但是这样做之后，我的URL映射和拦截器不再工作。我相信，由于我在拦截器中的调试陈述，这两个问题之间存在一个相同的问题，这使得它在基础的圣杯映射中似乎被打破了。

URLMappings

static mappings = {
        "/api/admin/$controller/$action?/$id?(.$format)?"{
            namespace = "admin"
            constraints {
                // apply constraints here
            }
        }

        "/"(redirect: "/app/")
        "/app"(uri: "/index.html")
        "/app/**"(uri: "/index.html")
        "500"(view:'/error')
        "404"(redirect: "/app/")
    }

UserController

class UserController extends AdminController {
    static namespace = "admin";

    def save(UserCommand cmd) {
       [...]
    }
}

LoginInterceptor

class LoginInterceptor {

    LoginInterceptor() {
        matchAll()
                .excludes(controller: ~/(login|logout|publicLookupSvc)/);
    }

    boolean before() {
        println(controllerNamespace);
        println(controllerName);
        println(actionName);
        println(request.requestURI);

        true
    }
}

So the underlying issue I am referring to is that my debug statments in 4.0.13 print null whereas in 3.3.x they actually print values

So if I visit the URL: http://localhost :8081/raa/api/admin/user/save

In 3.3

println(controllerNamespace); -> admin
println(controllerName); -> user
println(actionName); -> save
println(request.requestURI); -> /raa/api/admin/user/save

In 4.0.13

println(controllerNamespace); -> null
println(controllerName); -> null
println(actionName); -> null
println(request.requestURI); -> /raa/api/admin/user/save

Along with the error stacktrace

2022-04-20 13:15:33.303 ERROR --- [nio-8081-exec-3] o.g.web.errors.GrailsExceptionResolver   : IllegalArgumentException occurred when processing request: [GET] /raa/api/admin/user/save
URL mapping must either provide redirect information, a controller or a view name to map to!. Stacktrace follows:

java.lang.IllegalArgumentException: URL mapping must either provide redirect information, a controller or a view name to map to!
    at org.springframework.util.Assert.isTrue(Assert.java:118)
    at org.grails.web.mapping.DefaultUrlMappingInfo.<init>(DefaultUrlMappingInfo.java:105)
    at org.grails.web.mapping.DefaultUrlMappingInfo.<init>(DefaultUrlMappingInfo.java:99)
    at org.grails.web.mapping.ResponseCodeUrlMapping.match(ResponseCodeUrlMapping.java:136)
    [...]

Consequently, since all the attributes are null regarding where my request is suposed to be routed, the matchAll()也不起作用。当我在登录/注销/publiclookupsvc控制器中，即使应该跳过，拦截器仍会被击中。

我觉得一旦我弄清楚为什么这些映射参数无法正确填充，一切都会落在原位。我只是不知道为什么会发生。

Grails 4.0.13

JDK 11.0.13

Gradle 5.0

Answer 1

您在Grails 4.x中宣传上下文Path的方式已更改，这导致我所有的URL不正确。修复此操作后，一切都按预期运行。

Grails 3.x

server:
  contextPath: '/myapp'

Grails 4.x+

server:
  servlet:
     contextPath: '/myapp'