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...
} 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...
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 ...
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...
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...
publicclassInnerimplementsSerializable{}publicclassOuterimplementsSerializable{privateInnerinner;publicOuter(Innerinner){this.inner=inner;}publicInnergetInner(){returninner;}} publicclassMyTest{publicstaticvoidmain(String[]args)throwsIOException,ClassNotFoundException{Innerinner=newInner();Outerouter=newOuter(inn...
[root@c41287379b7c/]# ./as.sh Arthas script version:3.1.7[INFO] JAVA_HOME: /usr/jdk1.8.0_111Found existing java process, please choose one and hit RETURN. * [1]:1org.apache.catalina.startup.Bootstrap1//这里输入1就是连接进程,如果有多个java进程,将在这里出现一个list,输入序号即可连接进...
在我的理解里面,堆栈是用来储存我们程序当前执行的信息。在Java当中,我们通过java.lang.Thread#getStackTrace可以拿到当前线程的堆栈信息,注意是当前线程的堆栈。 而RxJava 抛出异常的地方,是在执行 Callable#call 方法中,它打印的自然是Callable#call的方法调用栈,而如果 Callable#call 的调用线程跟 callable 的创建线程...
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...