在Java Play Framework 2.2.x中启用CORS [英] Enable CORS in Java Play Framework 2.2.x
本文介绍了在Java Play Framework 2.2.x中启用CORS的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我无法在Java Play 2.2.x中启用跨域
I am having trouble of enabling cross domain in Java Play 2.2.x
在Java Play 2.1.3中,此代码的工作原理是将其放在Global.java
In Java Play 2.1.3 this code works by putting it in Global.java
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));
}
}
但是当我试图编译java播放2.2.x,它不再编译。
But when I tried to compile on java play 2.2.x, it does not compile anymore.
编译错误消息:
Global.ActionWrapper是不抽象的,并且不会覆盖Action中的抽象方法调用(Context)...
Global.ActionWrapper is not abstract and does not override abstract method call(Context) in Action ...
有没有任何等效的代码为java play 2.2.x?
Is there any equivalent code for java play 2.2.x?
感谢。
推荐答案
它看起来像这样:
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));
}
}
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