com.github.jsonzou.jmockdata.util.randomstring

类 RandomStringGenerator

java.lang.Object

com.github.jsonzou.jmockdata.util.randomstring.RandomStringGenerator

public class RandomStringGenerator
extends Object

Generator of random string.

This class doesn't generate secure strings. So please use SecureRandom class if you want to use with such a purpose.

作者:

moznion

构造器概要

构造器

构造器和说明
RandomStringGenerator() Instantiate generator with a default number of upper limit for regex quantifiers (for example *, + and etc; default value is 10) and a default instance of Random.
RandomStringGenerator(int numOfUpperLimit) Instantiate generator with a number of upper limit for regex quantifiers (for example * , + and etc) and a default instance of Random.
RandomStringGenerator(Random random) Instantiate generator with a default number of upper limit for regex quantifiers (for example *, + and etc; default value is 10) and an instance of Random.
RandomStringGenerator(Random random, int numOfUpperLimit) Instantiate generator with a number of upper limit for regex quantifiers (for example * , + and etc) and an instance of Random.

方法概要

方法

限定符和类型	方法和说明
String	generateByRegex(String regex) Generate random string from regular expression.
String	generateFromPattern(String pattern) Generate random string from pattern.
int	getNumOfUpperLimit() Get number of upper limit for regex quantifiers, for example *, + and etc.
void	setNumOfUpperLimit(int numOfUpperLimit) Set number of upper limit for regex quantifiers, for example *, + and etc.

从类继承的方法 java.lang.Object

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

构造器详细资料

RandomStringGenerator

public RandomStringGenerator()

Instantiate generator with a default number of upper limit for regex quantifiers (for example *, + and etc; default value is 10) and a default instance of Random.

RandomStringGenerator

public RandomStringGenerator(int numOfUpperLimit)

Instantiate generator with a number of upper limit for regex quantifiers (for example * , + and etc) and a default instance of Random.

参数:

numOfUpperLimit - Number of upper limit for quantifiers

RandomStringGenerator

public RandomStringGenerator(Random random)

Instantiate generator with a default number of upper limit for regex quantifiers (for example *, + and etc; default value is 10) and an instance of Random.

参数:

random - Instance of Random

RandomStringGenerator

public RandomStringGenerator(Random random,
                     int numOfUpperLimit)

Instantiate generator with a number of upper limit for regex quantifiers (for example * , + and etc) and an instance of Random.

参数:

random - Instance of Random

numOfUpperLimit - Number of upper limit for quantifiers

方法详细资料

generateFromPattern

public String generateFromPattern(String pattern)

Generate random string from pattern.

You can use following characters as pattern.

• c : Any Latin lower-case character
• C : Any Latin upper-case character
• n : Any digit [0-9]
• ! : A symbol character [~`!@$%^&*()-_+= []|\:;"'.<>?/#,]
• . : Any of the above
• s : A "salt" character [A-Za-z0-9./]
• b : An ASCIII character which has code from 0 to 255

e.g.

 
 RandomStringGenerator generator = new RandomStringGenerator();
 
 // generates random string (e.g. "aB4@X.Ç")
 String randomString = generator.generateFromPattern("cCn!.sb");
 
 

参数:

pattern - Pattern string

返回:

Random string which is generated according to pattern

generateByRegex

public String generateByRegex(String regex)

Generate random string from regular expression.

You can use following meta characters as regex.

• \w : Alphanumeric + "_" [A-Za-z0-9_]
• \d : Digits [0-9]
• \W : Printable characters other than those in \w
• \D : Printable characters other than those in \d
• \s : Whitespace characters [ \t]
• \S : Printable characters
• . : Printable characters
• [] : Character classes (Example of usage [a-zA-Z])
• {}: Repetition
• * : Same as {0,}
• ? : Same as {0,1}
• + : Same as {1,}

e.g.

 
 RandomStringGenerator generator = new RandomStringGenerator();
 
 // generates random string (e.g. "a5B123 18X")
 String randomString = generator.generateByRegex("\\w+\\d\*\s[0-9]{0,3}X");
 
 

参数:

regex - Pattern based on regular expression

返回:

Random String

getNumOfUpperLimit

public int getNumOfUpperLimit()

Get number of upper limit for regex quantifiers, for example *, + and etc.

返回:

Number of upper limit for quantifiers

setNumOfUpperLimit

public void setNumOfUpperLimit(int numOfUpperLimit)

Set number of upper limit for regex quantifiers, for example *, + and etc.

参数:

numOfUpperLimit - Number of upper limit for quantifiers