Learn to convert Java exception stack trace to aString. FromStackTraceto String conversion may be useful when we want to print stack traces in log files or store logs in a database for audit purposes. Note that Java does not have an inbuilt direct API to get the stack trace asString. 1....
toString(); // stack trace as a string 答案三 StringWriter sw = new StringWriter(); e.printStackTrace(new PrintWriter(sw)); String exceptionAsString = sw.toString(); 答案四 public String stackTraceToString(Throwable e) { StringBuilder sb = new StringBuilder(); for (StackTraceElement element...
public static void main(String[] args) { List l = new ArrayList(); try { l.get(9); } catch (Exception e) { StringWriter sw = new StringWriter(); PrintWriter pw = new PrintWriter(sw); e.printStackTrace(pw); System.out.println(sw.toString()); // stack trace as a string e.print...
try{// 可能抛出异常的操作}catch(Exceptione){logger.error("Exception occurred: "+e.toString());logger.error("Stack trace: "+Throwables.getStackTraceAsString(e));} 这样做的好处是,即使异常被捕获并处理,咱们也能在日志中得到足够的信息来分析问题。 异常处理的最佳实践 最后,小黑我想谈谈使用Throwables时...
} catch (Exception e) { // 获取异常的堆栈信息字符串 String stackTrace = Throwables.getStackTraceAsString(e); // 做些什么,比如记录日志 } 此外,Throwables.getRootCause(Throwable)也很实用。有时候异常会被包装多层,最原始的异常信息可能隐藏在几层包装之下。这个方法可以帮咱们直接找到最底层的异常原因,方...
String s; … t.printStackTrace(pw); s = sw.toString(); sw.getBuffer().setLength(0); …. // 这里的代码省略 } [/code] 这里我们可以看到整体的实现思路。 首先,t.printStackTrace(pw); 获得stack trace字符串。这个t是 new Throwable()的结果。用户程序调用Log4J方法之后,Log4J自己又进行了4次调用...
getCode(), cause); this.errorCode = errorInfoInterface.getCode(); this.errorMsg = errorInfoInterface.getMessage(); } public BizException(String errorMsg) { super(errorMsg); this.errorMsg = errorMsg; } public BizException(String errorCode, String errorMsg) { super(errorCode); this.error...
一、javah命令(C Header and Stub File Generator) 二、jps命令(JavaVirtual Machine Process Status Tool) 三、jstack命令(Java Stack Trace) 四、jstat命令(Java Virtual Machine Statistics Monitoring Tool) 五、jmap命令(Java Memory Map) 六、jinfo命令(Java Configuration Info) 七、jconsole命令(Java Monitoring...
可打印 throwable 栈轨迹catch(Exception e) { e.printStackTrace(); }//2. 将栈轨迹保存到一个 stringvar t =newThrowable(); var out =newStringWriter(); t.printStackTrace(newPrinterWriter(out)); String description = out.toString();//3. (Java 9之前的方法)获取栈轨迹 getStrackTrace(),并分析...
Provides programmatic access to the stack trace information printed by #printStackTrace(). (Inherited from Throwable) GetSuppressed() Returns an array containing all of the exceptions that were suppressed, typically by the try-with-resources statement, in order to deliver this exception. (Inherited...