每种类型错误的PlayFramework应用程序2.7.x自定义错误页

import play.http.HttpErrorHandler;
import play.mvc.Http.RequestHeader;
import play.mvc.Result;
import play.mvc.Results;

import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionStage;

public class CustomErrorHandler implements HttpErrorHandler {

    @Override
    public CompletionStage<Result> onClientError(RequestHeader request, int statusCode, String message) {
        // 处理客户端错误，如404页面不存在等
        return CompletableFuture.completedFuture(
                Results.status(statusCode, "A client error occurred: " + message)
        );
    }

    @Override
    public CompletionStage<Result> onServerError(RequestHeader request, Throwable exception) {
        // 处理服务器错误，如500内部服务器错误等
        return CompletableFuture.completedFuture(
                Results.internalServerError("A server error occurred: " + exception.getMessage())
        );
    }
}

play.http.errorHandler = "CustomErrorHandler"

@()(implicit request: RequestHeader)

@main("Error") {
    <h1>Error</h1>
    <p>An error occurred while processing your request.</p>
}