I built a simple Web Application using GWT and deployed it to Google App Engine Now I want to build my database and integrate it to my website I searched for it all what I found is Google Cloud SQL
and I have to pay for it
any free solution.I just want to build simple project for 1 user use
*Tip: database using MYSQL
There is only one way to have a free solution:
You will need to have to learn Google App Engine Datastore. This is another alternative to using a database such as MySQL.
There is now an introductory free trial for Google Cloud SQL.
https://developers.google.com/cloud-sql/docs/billing
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We have a Java web application developed locally without using any GAE components / AWS components (GAE/AWS SDK etc.,).
We used the following technologies: Java, Spring framework, MySQL Database, Hibernate ORM, Jersy REST library, Tomcat web server.
Our application is up & running fine on our local server.
Now my question is
If I deploy the existing WAR to Google App Engine/ Amazon AWS will it start working right away OR Do I have to make extra changes to my code and deploy new WAR file in order to make it working on Google App Engine / Amazon AWS?
If I want to start a new java web project(using same configuration I mentioned above) that will eventually run on Google App Engine / Amazon AWS, What is the best strategy:
Should I start my development using Google App Engine / Amazon AWS from the beginning ? or just deploy when everything is done?
EDIT : I just wanted to know about GAE and/or AWS in general.
It looks like Google Computer Engine is more suited if you rely on a relational database. Google app engine uses a NoSQL datastore that is not compatible with your relational scheme.
I am very newly in google app engine.. There are three Questoins on google app engine and in google app engine i want to choose JAVA language.
Does google app engine provide private cloude ?
I want to deploy my application with my own server( E.x.glassfish or JBoss) on google app engine ?
I want to use my own database instead of cloud SQL in google app engine?
Is it possible or not?
With Google Cloud Appengine - no, it's impossible.
With Google Cloud Instances or Google Cloud Containers - all of this is possible.
Appengine is just one piece of Google Cloud, designed for very specific job, with infrastructure managed by Google. You can only write some code (with lot of restrictions too) that runs inside it. You can read some details about code restritions there: https://cloud.google.com/appengine/docs/java/#Java_The_sandbox
What you're looking for is Google Cloud Instances, that are more standard virtual machines, where you can run anything you want. See https://cloud.google.com/compute/
There is still tools for Load Balancing, Health Check, Centralized Logging for Cloud Instances, and other stuff similar to features provided by Appengine.
We got a couple millions data in the current GAE project using Google Cloud store. Mostly GPS point information. We want to be able to use all these GPS points in another demo instance, which is hosted in another GAE instance. Anyway we can do it?
Using Golang + Google App Engine
There is a Google Cloud Datastore API that you can use to access your Datastore data from any other deployment, including a different App Engine app. It's not available in Go, so you will have to mix in some Python or Java.
I'm trying to read a sqlite db from the server side code in my gwt project. It throws AccessControlException. I looked a lot on the web and all solutions seems to be disabling Google App Engine, but when I do this, I can't run my project. I'm new to GWT and I have no idea where it runs when Google App Engine is shut down. I look for possibly this two solutions: Any setting that Google App Engine is set to be able to read any file, or other engine that I run my application on. Thanks
The problem is that Google App Engine (GAE) does not support sqlite (I assume you are reading it using JDBC).
If your intention is to make a GWT project that will not be deployed on GAE, you should create the project disabling this feature from the very beginning, because afterwards its a nightmare as you are experiencing right now.
If your intention is to deploy in GAE, you must use the google's persistence mechanisms (JDO) to store your data. SqlLite is off the table here.
In my application I want to use MySQL with Google App Engine. I tried to search for solutions but didn't find an accurate answer. Some say its impossible to connect to MySQL, some say that Google Cloud SQL is one of the options.
Does anyone have ideas about the correct approach?
The capability to use MySQL within Google App Engine does exist via Google Cloud SQL. It works with both the Python and Java runtimes.
However, Google Cloud SQL is currently in limited preview. You can see details on how to enroll here.
While you wait to see if you get accepted into the preview, you can check out the instructions for Java and Python.