com.arxanfintech.common.util

类 Utils

java.lang.Object

com.arxanfintech.common.util.Utils

public class Utils
extends java.lang.Object

字段概要

字段

限定符和类型	字段和说明
static double	JAVA_VERSION

构造器概要

构造器

构造器和说明
Utils()

方法概要

限定符和类型	方法和说明
static byte[]	addressStringToBytes(java.lang.String hex) Decodes a hex string to address bytes and checks validity
static java.lang.String	align(java.lang.String s, char fillChar, int targetLen, boolean alignRight)
static long	fromUnixTime(long unixTime)
static java.lang.String	getAddressShortString(byte[] addr)
static java.lang.String	getHashListShort(java.util.List<byte[]> blockHashes)
static javax.swing.ImageIcon	getImageIcon(java.lang.String resource)
static java.lang.String	getNodeIdShort(java.lang.String nodeId)
static java.security.SecureRandom	getRandom()
static java.lang.String	getValueShortString(java.math.BigInteger number)
static boolean	isValidAddress(byte[] addr)
static java.util.Map<java.lang.String,java.lang.String>	JsonToMap(com.alibaba.fastjson.JSONObject json)
static java.lang.String	longToDateTime(long timestamp) Return formatted Date String: yyyy.MM.dd HH:mm:ss Based on Unix's time() input in seconds
static <T> T[]	mergeArrays(T[]... arr)
static java.lang.String	repeat(java.lang.String s, int n)
static long	toUnixTime(long javaTime)
static java.math.BigInteger	unifiedNumericToBigInteger(java.lang.String number)

从类继承的方法 java.lang.Object

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

字段详细资料

JAVA_VERSION

public static double JAVA_VERSION

构造器详细资料

Utils

public Utils()

方法详细资料

unifiedNumericToBigInteger

public static java.math.BigInteger unifiedNumericToBigInteger(java.lang.String number)

参数:

number - should be in form '0x34fabd34....'

返回:

String

longToDateTime

public static java.lang.String longToDateTime(long timestamp)

Return formatted Date String: yyyy.MM.dd HH:mm:ss Based on Unix's time() input in seconds

参数:

timestamp - seconds since start of Unix-time

返回:

String formatted as - yyyy.MM.dd HH:mm:ss

getImageIcon

public static javax.swing.ImageIcon getImageIcon(java.lang.String resource)

getValueShortString

public static java.lang.String getValueShortString(java.math.BigInteger number)

addressStringToBytes

public static byte[] addressStringToBytes(java.lang.String hex)

Decodes a hex string to address bytes and checks validity

参数:

hex - - a hex string of the address, e.g., 6c386a4b26f73c802f34673f7248bb118f97424a

返回:

- decode and validated address byte[]

isValidAddress

public static boolean isValidAddress(byte[] addr)

getAddressShortString

public static java.lang.String getAddressShortString(byte[] addr)

参数:

addr - length should be 20

返回:

short string represent 1f21c...

getRandom

public static java.security.SecureRandom getRandom()

getHashListShort

public static java.lang.String getHashListShort(java.util.List<byte[]> blockHashes)

getNodeIdShort

public static java.lang.String getNodeIdShort(java.lang.String nodeId)

toUnixTime

public static long toUnixTime(long javaTime)

fromUnixTime

public static long fromUnixTime(long unixTime)

mergeArrays

public static <T> T[] mergeArrays(T[]... arr)

align

public static java.lang.String align(java.lang.String s,
                                     char fillChar,
                                     int targetLen,
                                     boolean alignRight)

repeat

public static java.lang.String repeat(java.lang.String s,
                                      int n)

JsonToMap

public static java.util.Map<java.lang.String,java.lang.String> JsonToMap(com.alibaba.fastjson.JSONObject json)
                                                                  throws com.alibaba.fastjson.JSONException

抛出:

com.alibaba.fastjson.JSONException