Enabling the search engines to index data from web application

I am building a social web application using Java and Cassandra DB. I want some of the data from my database to be visible to search engines. Since my application is completely dynamic & contains data only in DB and not in static pages, how do the crawlers read this data?

1.)How can I ensure that the data stored on my servers can be seen by the search engines? My application contains user specific data

2.)How do the search engines access开发者_运维技巧 that data ??

3.)How can I limit the search engines crawling only to some specific data?

Read the explanations from Google.

The search engines access your data as any other user of your website : by browsing it and clicking all the links they find. Content accessible only through AJAX will be more difficult to make accessible by search engines.

Access can be restricted using a robots.txt file. Explanations are given in the link given above.

1) You need to separate user specific info from public info, either you should have public and private pages - or you could decorate you'r public page with user specifics through some session based Ajax calls.

Meaning: the browser just load the public version of the page, while a javascript would load the users specifics and inject them into the page.

2 and 3 could be solved by uploading a site map to Google.

Or do you want Google to talk to Cassendra directly...? Then ignore all above - I think.