我在 Java Play 2.2.x 中启用跨域时遇到问题
在 Java Play 2.1.3 中,这段代码通过将它放在 Global.java 中来工作
public class Global extends GlobalSettings {
private class ActionWrapper extends Action.Simple {
public ActionWrapper(Action action) {
this.delegate = action;
}
@Override
public Result call(Http.Context ctx) throws java.lang.Throwable {
Result result = this.delegate.call(ctx);
Http.Response response = ctx.response();
response.setHeader("Access-Control-Allow-Origin", "*");
return result;
}
}
@Override
public Action onRequest(Http.Request request, java.lang.reflect.Method actionMethod) {
return new ActionWrapper(super.onRequest(request, actionMethod));
}
}
但是当我尝试在 java play 2.2.x 上编译时,它不再编译了。
编译错误信息:
Global.ActionWrapper 不是抽象的,不会覆盖 Action 中的抽象方法调用(Context) ...
是否有 java play 2.2.x 的等效代码?
谢谢。
最佳答案
看起来像这样:
import play.GlobalSettings;
import play.libs.F.Promise;
import play.mvc.Action;
import play.mvc.Http;
import play.mvc.SimpleResult;
public class Global extends GlobalSettings {
private class ActionWrapper extends Action.Simple {
public ActionWrapper(Action<?> action) {
this.delegate = action;
}
@Override
public Promise<SimpleResult> call(Http.Context ctx) throws java.lang.Throwable {
Promise<SimpleResult> result = this.delegate.call(ctx);
Http.Response response = ctx.response();
response.setHeader("Access-Control-Allow-Origin", "*");
return result;
}
}
@Override
public Action<?> onRequest(Http.Request request, java.lang.reflect.Method actionMethod) {
return new ActionWrapper(super.onRequest(request, actionMethod));
}
}
关于java - 在 Java Play Framework 2.2.x 中启用 CORS,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/22144788/