如何将网址发送为像bt.ly这样的小网址？

http://api.bitly.com/v3/shorten?login=bitlyapidemo&apiKey=R_0da49e0a9118ff35f52f629d2d71bf07&longUrl=http%3A%2F%2Fbetaworks.com%2F&format=json

{
    "status_code": 200, 
    "data": {
        "url": "http://bit.ly/cmeH01", 
        "hash": "cmeH01", 
        "global_hash": "1YKMfY", 
        "long_url": "http://betaworks.com/", 
        "new_hash": 0
    }, 
    "status_txt": "OK"
}