Module bus.extra

Package org.miaixz.bus.extra.captcha.strategy

Class RandomStrategy

java.lang.Object

org.miaixz.bus.extra.captcha.strategy.AbstractStrategy

org.miaixz.bus.extra.captcha.strategy.RandomStrategy

All Implemented Interfaces:

Serializable, CodeStrategy

public class RandomStrategy
extends AbstractStrategy

Random character CAPTCHA generation strategy. Generates a random CAPTCHA string from a given base character set and length.

Since:

Java 17+

Author:

Kimi Liu

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.miaixz.bus.extra.captcha.strategy.AbstractStrategy

baseStr, length

Constructor Summary

Constructors

Constructor	Description
RandomStrategy(int count)	Constructs a new RandomStrategy using letters and numbers as the base character set.
RandomStrategy(String baseStr, int length)	Constructs a new RandomStrategy with a custom base character set and length.

Method Summary

Modifier and Type	Method	Description
String	generate()	Generates the CAPTCHA code.
boolean	verify(String code, String userInputCode)	Verifies if the user's input string matches the generated CAPTCHA code.

Methods inherited from class org.miaixz.bus.extra.captcha.strategy.AbstractStrategy

getLength

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

RandomStrategy

public RandomStrategy(int count)

Constructs a new RandomStrategy using letters and numbers as the base character set.

Parameters:

count - The length of the CAPTCHA code to generate.

RandomStrategy

public RandomStrategy(String baseStr,
 int length)

Constructs a new RandomStrategy with a custom base character set and length.

Parameters:

baseStr - The base character set from which to randomly select characters.

length - The length of the CAPTCHA code to generate.

Method Details

generate

public String generate()

Description copied from interface: CodeStrategy

Generates the CAPTCHA code.

Returns:

The CAPTCHA code.

verify

public boolean verify(String code,
 String userInputCode)

Description copied from interface: CodeStrategy

Verifies if the user's input string matches the generated CAPTCHA code. Users can define their own matching logic by implementing this method.

Parameters:

code - The randomly generated CAPTCHA code.

userInputCode - The CAPTCHA code entered by the user.

Returns:

Whether the verification is successful.