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Commit e9a6e23

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优化"how-can-i-convert-a-stack-trace-to-a-string"
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‎README.md

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* [如何创建单例](https://github.com/giantray/stackoverflow-java-top-qa/blob/master/contents/What_is_an_efficient_way_to_implement_a_singleton_in_Java.md)
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* [实现Runnable接口 VS. 继承Thread类](https://github.com/giantray/stackoverflow-java-top-qa/blob/master/contents/implements-runnable-vs-extends-thread.md)
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* [我应该用哪一个@NotNull注解](https://github.com/giantray/stackoverflow-java-top-qa/blob/master/contents/which-notnull-java-annotation-should-i-use.md)
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* [怎样将堆栈追踪信息转换为字符串](https://github.com/giantray/stackoverflow-java-top-qa/blob/master/contents/how-can-i-convert-a-stack-trace-to-a-string.md)
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> 网络
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- [Comparing Java enum members: == or equals()?](http://stackoverflow.com/questions/1750435/comparing-java-enum-members-or-equals)
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- [Failed to load the JNI shared Library (JDK)](http://stackoverflow.com/questions/7352493/failed-to-load-the-jni-shared-library-jdk)
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- [How to create a Java String from the contents of a file?](http://stackoverflow.com/questions/326390/how-to-create-a-java-string-from-the-contents-of-a-file)
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- [How can I convert a stack trace to a string?](http://stackoverflow.com/questions/1149703/how-can-i-convert-a-stack-trace-to-a-string)
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- [How do you assert that a certain exception is thrown in JUnit 4 tests?](http://stackoverflow.com/questions/156503/how-do-you-assert-that-a-certain-exception-is-thrown-in-junit-4-tests)
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- [What exactly is Apache Camel?](http://stackoverflow.com/questions/8845186/what-exactly-is-apache-camel)
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- [How can I permanently have line numbers in IntelliJ?](http://stackoverflow.com/questions/13751/how-can-i-permanently-have-line-numbers-in-intellij)

‎contents/how-can-i-convert-a-stack-trace-to-a-string.md

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#怎么样将堆栈追踪信息转换为字符串类型
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#怎样将堆栈追踪信息转换为字符串
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##问题
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将`Throwable.getStackTrace()`的结果转换为一个字符串来来描述堆栈信息的最简单的方法是什么
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[`org.apache.commons.lang.exception.ExceptionUtils.getStackTrace(Throwable)`](org.apache.commons.lang.exception.ExceptionUtils.getStackTrace\(Throwable\))
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###答案二
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用 [`Throwable.printStackTrace(PrintWriter pw)`](https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html#printStackTrace-java.io.PrintWriter-)将对堆栈信息发送到一个输出中:
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用 [`Throwable.printStackTrace(PrintWriter pw)`](https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html#printStackTrace-java.io.PrintWriter-)可以输出堆栈信息:
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````java
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StringWriter sw = new StringWriter();
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PrintWriter pw = new PrintWriter(sw);

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