java - 在 Play 框架中发送有关服务器错误的电子邮件

Question

我开发了一个 Web 服务，希望在发生某些服务器错误(例如除以零、内存不足异常等)时收到通知。我想知道在自定义 ErrorHandler 中处理和发送每个请求的此错误是否是一个好的做法？

package controllers;

import play.*;
import play.api.OptionalSourceMapper;
import play.api.UsefulException;
import play.api.routing.Router;
import play.http.DefaultHttpErrorHandler;
import play.mvc.Http.*;
import play.mvc.*;

import javax.inject.*;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionStage;

@Singleton
public class ErrorHandler extends DefaultHttpErrorHandler {

    @Inject
    public ErrorHandler(Configuration configuration, Environment environment, OptionalSourceMapper sourceMapper, Provider<Router> routes) {
        super(configuration, environment, sourceMapper, routes);
    }

    // Invoked in prod mode when a server error occurs.
    protected CompletionStage<Result> onProdServerError(RequestHeader request, UsefulException exception) {
        return CompletableFuture.completedFuture(Results.internalServerError("A server error occurred (prod): " + exception.getMessage())
                // Send email
        );
    }

    protected CompletionStage<Result> onDevServerError(RequestHeader request, UsefulException exception) {
        return CompletableFuture.completedFuture(
                Results.internalServerError("A server error occurred (dev): " + exception.getMessage())
        );
    }
}

Answer 1

This may be useful for the non-fatal errors. But in case of fatal errors this will not work. Its better to use Logging and other process exception monitoring solutions.