com.lehuipay.leona.utils

类 CommonUtil

java.lang.Object

com.lehuipay.leona.utils.CommonUtil

public class CommonUtil
extends Object

构造器概要

构造器

构造器和说明
CommonUtil()

方法概要

限定符和类型	方法和说明
static byte[]	base64Decode(String encrypt)
static String	base64Encode(byte[] data)
static Boolean	equals(String str1, String str2) "" 等同于null处理
static Boolean	isEmpty(String str1)
static String	NVLL(String str1) trim string, include convert null to ""; if str1 is null, will return "";
static String	randomStr(int length) 生成固定长度随机串
static String	randomStr(int min, int max) 生成随即串
static String	readPemFile2String(String fileName)
static byte[]	subBytes(byte[] src, int begin, int count)

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

CommonUtil

public CommonUtil()

方法详细资料

NVLL

public static String NVLL(String str1)

trim string, include convert null to ""; if str1 is null, will return "";

参数:

str1 - 入参

返回:

return str1 == null ? "" : str1

isEmpty

public static Boolean isEmpty(String str1)

equals

public static Boolean equals(String str1,
                             String str2)

"" 等同于null处理

参数:

str1 - 参数1

str2 - 参数2

返回:

equals(null, "") == true

subBytes

public static byte[] subBytes(byte[] src,
                              int begin,
                              int count)

readPemFile2String

public static String readPemFile2String(String fileName)
                                 throws IOException

抛出:

IOException

randomStr

public static String randomStr(int min,
                               int max)

生成随即串

参数:

min - 最小程度

max - 最大长度

返回:

随机串

randomStr

public static String randomStr(int length)

生成固定长度随机串

参数:

length -

返回:

base64Decode

public static byte[] base64Decode(String encrypt)

base64Encode

public static String base64Encode(byte[] data)