Java的：重写方法不抛出“java.lang.Throwable中的”

Question

我得到以下编译时错误

call(play.mvc.Http.Context) in actions.Headers cannot override call(play.mvc.Http.Context) in play.mvc.Action
[error]   overridden method does not throw java.lang.Exception
[error]        public CompletionStage<Result> call(final Http.Context ctx) throws Throwable {

这里是代码：

public CompletionStage<Result> call(final Http.Context ctx) throws Throwable {
           ctx.response().setHeader("Access-Control-Allow-Origin", "*");
           ctx.response().setHeader("Allow", "*");
           ctx.response().setHeader("Access-Control-Allow-Methods", "POST, GET, PUT, DELETE, OPTIONS");
           ctx.response().setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, Referer, User-Agent, token");
           ctx.response().setHeader("Access-Control-Expose-Headers", "Origin, X-Requested-With, Content-Type, Accept, Referer, User-Agent, token");

           return (CompletionStage<Result>) delegate.call(ctx);
       }

我现在用的打法framework 2.6

Answer 1

根据游戏框架2.6在集体诉讼的方法调用没有抛出Throwable的了，所以你的方法必须这样做，太的documentation。

Answer 2

只是删除从方法声明[抛出的Throwable。