How to share content of my website on facebook

Have a look over OpenGraph tags like the ones below :

<meta property="og:title" content="TITLE" /> 
<meta property="og:image" content="URL" /> 
<meta property="og:description" content="DESCRIPTION" /> 
<meta property="og:url" content="URL" />

Finally I got my solution.This is actual code that is doing job for me . I was mis handleing ?u of my link.It should be like this

 ?u=http%3A%2F%2Fmywebsite.com%2Fcontent+of+my+page" target="_blank">this link</a>