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
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...
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...
} catch (Exception e) { 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时的一些最佳...
另一个超级有用的功能是Throwables.getStackTraceAsString(Throwable)。有时候,咱们需要将异常的堆栈信息记录到日志中,或者发送到某个监控系统。这个方法可以直接把异常的堆栈信息转换为字符串,方便咱们处理: try{// 可能抛出异常的代码}catch(Exceptione){// 获取异常的堆栈信息字符串StringstackTrace=Throwables.getStack...
UseStringWriter.toString()to get the stack trace as string. We are usingtry-with-resourceto createStringWriterandPrintWriterinstances that automatically close both writers when processing is complete. In the following program, we create aNullPointerExceptionand print its stack trace after converting it ...
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...
public LocationInfo(Throwable t, String fqnOfCallingClass) { 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...
publicclassInnerimplementsSerializable{}publicclassOuterimplementsSerializable{privateInnerinner;publicOuter(Innerinner){this.inner=inner;}publicInnergetInner(){returninner;}} publicclassMyTest{publicstaticvoidmain(String[]args)throwsIOException,ClassNotFoundException{Innerinner=newInner();Outerouter=newOuter(inn...
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...