What should I pay attention to in java SMS verification code?

Java SMS verification code cannot be requested multiple times. Generally speaking, the same mobile phone will send the same request no more than three times at the same time, and the time interval is limited to one minute. This is to avoid frequent and invalid random clicks or malicious interference by some users, which will affect the normal work of the system and make friends in need unable to complete the verification normally.

2. Quantity limitation

If some users always send a large number of requests to the background, the frequency is too high, and the same mobile phone number exceeds a certain number of requests in one day, then this mobile phone number will be recognized as a dangerous number, which may be blacklisted by the system, resulting in the inability to verify the request next time.

3. Wrong definition

When users constantly verify the same type of requirements, such as changing passwords when registering, sending java SMS verification codes, etc., the number of input errors is also limited. Because the normal and standardized SMS verification code can be accurately received by users in a short time, if users can't input it correctly for more than three consecutive times, it will invalidate their verification code, avoid malicious attempts to input it, and ensure the security of users' accounts.

SMS verification code plays an important role in our daily life and is the mainstream security means to protect our current Internet information. Therefore, in the development and later maintenance of java SMS verification code, its security can not be ignored. Java SMS verification code can be accessed to Guangdong Fifth Avenue to provide SMS verification code test.