java - 如何登录 Undertow 嵌入式服务器中的文件？

Question

我有一个简单的示例，其中我实现了一个访问日志处理程序。它确实记录到控制台。如何配置记录器记录到指定文件？

package com.zetcode;

import io.undertow.Undertow;
import io.undertow.server.HttpHandler;
import io.undertow.server.HttpServerExchange;
import io.undertow.server.handlers.accesslog.AccessLogHandler;
import io.undertow.server.handlers.accesslog.JBossLoggingAccessLogReceiver;
import io.undertow.util.Headers;

class MyHandler implements HttpHandler {

    @Override
    public void handleRequest(HttpServerExchange exchange) {

        exchange.getResponseHeaders().put(Headers.CONTENT_TYPE, "text/plain");
        exchange.getResponseSender().send("Hello there");
    }
}

public class UndertowLogEx {

    public static void main(String[] args) {

        Undertow server = Undertow.builder()
                .addHttpListener(8080, "0.0.0.0")
                .setHandler(new AccessLogHandler(new MyHandler(), new JBossLoggingAccessLogReceiver(),
                        "combined", UndertowLogEx.class.getClassLoader()))
                .build();

        server.start();
    }
}

Answer 1

JBossLoggingAccessLogReceiver 将访问日志记录到 jboss-logging 外观。 jboss-logging 外观将记录到您配置的任何日志管理器。如果您配置了控制台处理程序，它将记录到控制台。

如果您想登录到文件，可以使用DefaultAccessLogReceiver。

final ExecutorService executor = Executors.newSingleThreadExecutor();
DefaultAccessLogReceiver.Builder builder = DefaultAccessLogReceiver.builder().setLogWriteExecutor(executor)
        .setOutputDirectory(Paths.get("/var/log/undertow"))
        .setLogBaseName("access-log.")
        .setLogNameSuffix("log")
        .setRotate(true);   

Undertow server = Undertow.builder()
    .addHttpListener(8080, "0.0.0.0")
    .setHandler(new AccessLogHandler(new MyHandler(), builder.build(),
            "combined", UndertowUrlRewrite.class.getClassLoader()))
    .build();

server.start();