The ability of the handset to obtain the authentication code

　　Objective: to register a new user with the verification code function, click to get the verification code key, the verification code will be sent to the phone.

　　Key:

1. Obtain random number;

2, the acquisition of random number saved and sent to the phone.

　　train of thought: validation is generally to prevent users from malicious registration, so do not have to write the verification code into the database. Generates the verification code, which is stored in the session. Call WebService, when the user receives the input verification code, and the session is compared.

　　steps:

1, you have to buy SMS with SMS, and then call their webservice in your project.

2, random generation of verification code;

3, through the SMS interface to send random code to the mobile phone;

3, fill in the Verification code---> check;

4, successful verification.

　　how to invoke the SMS interface.