程序包 cn.taketoday.util

类 ExceptionUtils

java.lang.Object

cn.taketoday.util.ExceptionUtils

public abstract class ExceptionUtils
extends Object

作者:

TODAY
2018-11-13 21:25

嵌套类概要

嵌套类

修饰符和类型	类	说明
static interface	ExceptionUtils.Action

构造器概要

构造器

构造器	说明
ExceptionUtils()

方法概要

修饰符和类型	方法	说明
static String	buildMessage(String message, Throwable cause)	Build a message for the given base message and root cause.
static Throwable	getMostSpecificCause(Throwable original)	Retrieve the most specific cause of the given exception, that is, either the innermost cause (root cause) or the exception itself.
static Throwable	getRootCause(Throwable original)	Retrieve the innermost cause of the given exception, if any.
static void	sneakyThrow(ExceptionUtils.Action action)
static RuntimeException	sneakyThrow(Throwable t)	Throws any throwable 'sneakily' - you don't need to catch it, nor declare that you throw it onwards.
static <T> T	sneakyThrow(Callable<T> action)
private static <T extends Throwable> T	sneakyThrow0(Throwable t)
static Throwable	unwrapThrowable(Throwable ex)	Unwrap

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

ExceptionUtils

public ExceptionUtils()

方法详细资料

unwrapThrowable

public static Throwable unwrapThrowable(Throwable ex)

Unwrap

参数:

ex - target Throwable

返回:

unwrapped Throwable

buildMessage

public static String buildMessage(String message,
 Throwable cause)

Build a message for the given base message and root cause.

参数:

message - the base message

cause - the root cause

返回:

the full exception message

从以下版本开始:

3.0

getRootCause

public static Throwable getRootCause(Throwable original)

Retrieve the innermost cause of the given exception, if any.

参数:

original - the original exception to introspect

返回:

the innermost exception, or null if none

从以下版本开始:

3.0

getMostSpecificCause

public static Throwable getMostSpecificCause(Throwable original)

Retrieve the most specific cause of the given exception, that is, either the innermost cause (root cause) or the exception itself.

Differs from getRootCause(java.lang.Throwable) in that it falls back to the original exception if there is no root cause.

参数:

original - the original exception to introspect

返回:

the most specific cause (never null)

从以下版本开始:

3.0

sneakyThrow

public static RuntimeException sneakyThrow(Throwable t)

Throws any throwable 'sneakily' - you don't need to catch it, nor declare that you throw it onwards. The exception is still thrown - javac will just stop whining about it.

Example usage:

   public void run() {
     throw sneakyThrow(new IOException("You don't need to catch me!"));
   }
 

NB: The exception is not wrapped, ignored, swallowed, or redefined. The JVM actually does not know or care about the concept of a 'checked exception'. All this method does is hide the act of throwing a checked exception from the java compiler.

Note that this method has a return type of RuntimeException; it is advised you always call this method as argument to the throw statement to avoid compiler errors regarding no return statement and similar problems. This method won't of course return an actual RuntimeException - it never returns, it always throws the provided exception.

参数:

t - The throwable to throw without requiring you to catch its type.

返回:

A dummy RuntimeException; this method never returns normally, it always throws an exception!

从以下版本开始:

4.0

sneakyThrow0

private static <T extends Throwable> T sneakyThrow0(Throwable t)
                                             throws T

抛出:

T extends Throwable

sneakyThrow

public static void sneakyThrow(ExceptionUtils.Action action)

从以下版本开始:

4.0

sneakyThrow

public static <T> T sneakyThrow(Callable<T> action)

从以下版本开始:

4.0