Question

我正在使用Firebase和Java Spring以及Tomcat8。我的firebase身份验证规则是

{
    "rules": {
        ".read": "auth!=null",
        ".write": "auth!=null"

    }
}

我在java spring应用程序中创建了一个单例类来加载firebase配置并启用匿名登录。部署服务器几个小时后会出现此问题。当我部署WAR文件时，它会将数据库更新几个小时，几小时后它就会失败。然后我需要重新加载服务器上下文。我知道会议每24小时到期一次，但它在24小时之前也会出现问题。

我尝试过的事情

更改了auth规则中的＆＃34; .write＆＃34;：true
在部署服务器之后，每25小时设置一个cron作业以初始化单例实例。

CronJob实例初始化代码：

@RequestMapping(value = "/cronJob/reloadSession", method = RequestMethod.POST)
    @ResponseBody
    public BasicResponse reloadSession(HttpServletRequest request) {
        BasicResponse response = new BasicResponse();
        FirebaseManager.INSTANCE = new FirebaseManager();
        return response;
    }

Firebase Manager：Singleton类代码

package com.dolphino.webapp.manager;

import java.io.InputStream;
import java.util.List;

import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;

import com.google.firebase.FirebaseApp;
import com.google.firebase.FirebaseOptions;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;

@Service
public class FirebaseManager {

    public static FirebaseManager INSTANCE = new FirebaseManager();

    private static String FIREBASE_PATH = "/firebaseConnection.json";

    private static FirebaseOptions options;
    public FirebaseManager(){
        super();
        try{
            InputStream in = MobileManager.class.getResourceAsStream(FirebaseManager.FIREBASE_PATH);
            options = new FirebaseOptions.Builder()
                      .setServiceAccount(in)
                      .setDatabaseUrl("https://my-url.firebaseio.com/")
                      .build();     
            FirebaseApp.initializeApp(options);
        }catch(Exception e){
            //throw exception
        }
    }

    @Async
    public void saveUser(String parentId, String text){
            DatabaseReference mDatabase = FirebaseDatabase.getInstance().getReference();
            mDatabase.child("users").child(parentId).setValue(text);
    }       
}

我还尝试将 saveUser 方法保留在另一个类中，并自动连接它。但它仍然没有用。

tomcat8服务器日志：

logs/catalina.2016-09-15.log:21:15-Sep-2016 12:08:18.765 WARNING [http-nio-8443-exec-57] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [project-spring] appears to have started a thread named [MongoCleaner560407163] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
logs/catalina.2016-09-15.log:24:15-Sep-2016 12:08:18.766 WARNING [http-nio-8443-exec-57] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [project-spring] appears to have started a thread named [FirebaseDatabaseWorker] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
logs/catalina.2016-09-15.log:34:15-Sep-2016 12:08:18.766 WARNING [http-nio-8443-exec-57] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [project-spring] appears to have started a thread named [FirebaseDatabaseEventTarget] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
logs/catalina.2016-09-15.log:43:15-Sep-2016 12:08:18.766 WARNING [http-nio-8443-exec-57] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [project-spring] appears to have started a thread named [java-sdk-http-connection-reaper] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
logs/catalina.2016-09-15.log:46:15-Sep-2016 12:08:24.944 INFO [http-nio-8443-exec-57] org.apache.catalina.core.StandardContext.reload Reloading Context with name [/project-spring] is completed

有时

0 个答案: