Question

我在使用Passenger和Nginx的Centos 6.5服务器上运行rails应用程序。如何在不停止的情况下检查它运行的环境？

Answer 1

您的环境位于Rails.env。

Loading development environment (Rails 4.2.3)
2.1.2 :001 > Rails.env
 => "development"

您还可以在问题格式中使用环境：条件：

2.1.2 :002 > Rails.env.production?
 => false 
2.1.2 :003 > Rails.env.pickle?
 => false 
2.1.2 :004 > Rails.env.development?
 => true

警告 - 如果您想在代码中编写一些检查环境的内容。

Answer 2

使用production命令。例如，这表明我的乘客正在运行Application groups环境（(production-web) ubuntu@ip-10-0-3-146 ~% sudo passenger-status Version : 5.0.15 Date : 2015-08-20 17:40:24 +0000 Instance: lNNFwV1C (Apache/2.4.7 (Ubuntu) Phusion_Passenger/5.0.15) ----------- General information ----------- Max pool size : 12 App groups : 1 Processes : 6 Requests in top-level queue : 0 ----------- Application groups ----------- /home/my-app/deploy/current (production): App root: /home/my-app/deploy/current Requests in queue: 0 * PID: 11123 Sessions: 0 Processed: 12997 Uptime: 21h 14m 2s CPU: 0% Memory : 190M Last used: 1s ago * PID: 11130 Sessions: 0 Processed: 140 Uptime: 21h 14m 2s CPU: 0% Memory : 153M Last used: 9m 32s a * PID: 11137 Sessions: 0 Processed: 15 Uptime: 21h 14m 2s CPU: 0% Memory : 103M Last used: 57m 54s * PID: 11146 Sessions: 0 Processed: 6 Uptime: 21h 14m 2s CPU: 0% Memory : 101M Last used: 7h 47m 4 * PID: 11153 Sessions: 0 Processed: 5 Uptime: 21h 14m 1s CPU: 0% Memory : 100M Last used: 8h 42m 3 * PID: 11160 Sessions: 0 Processed: 2 Uptime: 21h 14m 1s CPU: 0% Memory : 81M Last used: 8h 42m 3标题下的第一行）：

package internet;

import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;

public class internet {
   public static void main(String[] args) {
    try {
        URL url = new URL("http://www.wikipedia.org");

        HttpURLConnection hc = (HttpURLConnection) url.openConnection();
        int length = hc.getContentLength();
        System.out.println(length);
        InputStream input = url.openStream();
        byte[] binput = new byte[100000];
        input.read(binput);
        input.close();

        final String result = new String(binput);

        System.out.println(result);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

rails console不可靠 - 它只告诉您控制台在哪个环境下运行。可以将乘客配置为在不同的环境中运行。

如何检查我的Rails应用程序是否在运行时使用dev或生产环境运行

2 个答案: