com.alibaba.druid.util

类 Utils

java.lang.Object

com.alibaba.druid.util.Utils

public class Utils
extends Object

字段概要

字段

限定符和类型	字段和说明
static int	DEFAULT_BUFFER_SIZE

构造器概要

构造器

构造器和说明
Utils()

方法概要

方法

限定符和类型	方法和说明
static long	copy(InputStream input, OutputStream output)
static Boolean	getBoolean(javax.servlet.GenericServlet servlet, String key)
static Boolean	getBoolean(Properties properties, String key)
static Integer	getInteger(Properties properties, String key)
static Long	getLong(Properties properties, String key)
static String	getStackTrace(Throwable ex)
static Date	getStartTime()
static Class<?>	loadClass(String className)
static String	md5(String text)
static byte[]	md5Bytes(String text)
static long	murmurhash2_64(byte[] data, int length, int seed) murmur hash 2.0, The murmur hash is a relatively fast hash function from http://murmurhash.googlepages.com/ for platforms with efficient multiplication.
static long	murmurhash2_64(String text)
static void	putLong(byte[] b, int off, long val)
static String	read(InputStream in)
static String	read(Reader reader)
static String	read(Reader reader, int length)
static byte[]	readByteArray(InputStream input)
static byte[]	readByteArrayFromResource(String resource)
static String	readFromResource(String resource)
static String	toString(Date date)
static String	toString(StackTraceElement[] stackTrace)

从类继承的方法 java.lang.Object

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

字段详细资料

DEFAULT_BUFFER_SIZE

public static final int DEFAULT_BUFFER_SIZE

另请参阅:

常量字段值

构造器详细资料

Utils

public Utils()

方法详细资料

read

public static String read(InputStream in)

readFromResource

public static String readFromResource(String resource)
                               throws IOException

抛出:

IOException

readByteArrayFromResource

public static byte[] readByteArrayFromResource(String resource)
                                        throws IOException

抛出:

IOException

readByteArray

public static byte[] readByteArray(InputStream input)
                            throws IOException

抛出:

IOException

copy

public static long copy(InputStream input,
        OutputStream output)
                 throws IOException

抛出:

IOException

read

public static String read(Reader reader)

read

public static String read(Reader reader,
          int length)

toString

public static String toString(Date date)

getStackTrace

public static String getStackTrace(Throwable ex)

toString

public static String toString(StackTraceElement[] stackTrace)

getBoolean

public static Boolean getBoolean(Properties properties,
                 String key)

getBoolean

public static Boolean getBoolean(javax.servlet.GenericServlet servlet,
                 String key)

getInteger

public static Integer getInteger(Properties properties,
                 String key)

getLong

public static Long getLong(Properties properties,
           String key)

loadClass

public static Class<?> loadClass(String className)

getStartTime

public static final Date getStartTime()

murmurhash2_64

public static long murmurhash2_64(String text)

murmurhash2_64

public static long murmurhash2_64(byte[] data,
                  int length,
                  int seed)

murmur hash 2.0, The murmur hash is a relatively fast hash function from http://murmurhash.googlepages.com/ for platforms with efficient multiplication.

md5Bytes

public static byte[] md5Bytes(String text)

md5

public static String md5(String text)

putLong

public static void putLong(byte[] b,
           int off,
           long val)