Alternative of Storing data except databases like mysql,sql etc

I had completed my project Address Book in Java core, in which my data is stored in database (MySql).

I am facing a problem that when i run my program on other computer than tere is the requirement of creating the hole data base again.

So please tell me an开发者_如何学运维y alternative for storing my data without using any database software like mysql, sql etc.

You can use an in-memory database such as HSQLDB, Derby (a.k.a JavaDB), H2, ..

All of those can run without any additional software installation and can be made to act like just another library.

I would suggest using an embeddable, lightweight database such as SQLite. Check it out. From the features page (under the section Suggested Uses For SQLite):

Application File Format. Rather than using fopen() to write XML or some proprietary format into disk files used by your application, use an SQLite database instead. You'll avoid having to write and troubleshoot a parser, your data will be more easily accessible and cross-platform, and your updates will be transactional.

The whole point of StackOverflow was so that you would not have to email around questions/answers :)

You could store data in a filesystem, memory (use serialisation etc) which are simple alternatives to DB. You can even use HSQLDB which can be run completely in memory

If you data is not so big, you may use simple txt file and store everything in it. Then load it in memory. But this will lead to changing the way you modify/query data.

Database software like mysql, sql etc provides an abstraction in terms of implementation effort. If you wish to avoid using the same, you can think of having your own database like XML or flat files. XML is still a better choice as XML parsers or handlers are available. Putting your data in your customised database/flat files will not be manageable in the long run.

Why don't you explore sqlite? It is file based, means you don't need to install it separately and still you have the standard SQL to retrieve or interact with the data? I think, sqlite will be a better choice.

Just use a prevayler (.org). Faster and simpler than using a database.

I assume from your question that you want some form of persistent storage to the local file system of the machine your application runs on. In addition to that, you need to decide on how the data in your application is to be used, and the volume of it. Do you need a database? Are you going to be searching the data different fields? Do you need a query language? Is the data small enough to fit in to a simple data structure in memory? How resilient does it need to be? The answers to these types of questions will help lead to the correct choice of storage. It could be that all you need is a simple CSV file, XML or similar. There are a host of lightweight databases such as SQLite, Berkelely DB, JavaDB etc - but whether or not you need the power of a database is up to your requirements.

A store that I'm using a lot these days is Neo4j. It's a graph database and is not only easy to use but also is completely in Java and is embedded. I much prefer it to a SQL alternative.

In addition of the others answers about embedded databases I was working on a objects database that directly serialize java objects without the need for ORM. Its name is Sofof and I use it in my projects. It has many features which are described in its website page.