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时的一些最佳实践: 谨慎使用异常传播:虽然...
org.apache.commons.lang.exception.ExceptionUtils.getStackTrace(Throwable) 答案二 用Throwable.printStackTrace(PrintWriter pw)可以输出堆栈信息: StringWriter sw = new StringWriter(); PrintWriter pw = new PrintWriter(sw); t.printStackTrace(pw); sw.toString(); // stack trace as a string 答案三 StringW...
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...
// Get the stack trace. StackTraceElement stack[] = (new Throwable()).getStackTrace(); // First, search back to a method in the Logger class. …. // 这里的代码省略 // Now search for the first frame before the "Logger" class. while (ix StackTraceElement frame = stack[ix]; String ...
Ljava/lang/String; 26: putfield #7 // Field email:Ljava/lang/String; 29: return public void paint(java.awt.Graphics); Code: 0: aload_1 1: new #8 // class java/lang/StringBuilder 4: dup 5: invokespecial #9 // Method java/lang/StringBuilder."<init>":()V 8: aload_0 9: get...
Configuration Info for Java | 显示虚拟机配置信息 | | jmap | JVM Memory Map | 生成虚拟机的内存转储快照,生成heapdump文件 | | jhat | JVM Heap Dump Browser | 用于分析heapdump文件,它会建立一个HTTP/HTML服务器,让用户在浏览器上查看分析结果 | | jstack | JVM Stack Trace | 显示虚拟机的线程快照...
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...
显示所有类加载器的信息获取某个类加载器所在的jar包获取某个资源在哪个jar包中加载某个类5）monitor/watch/trace 相关（核心监视功能）monitor - 方法执行监控stack - 输出当前方法被调用的调用路径trace - 方法内部调用路径，并输出方法路径上的每个节点上耗时tt - 方法执行数据的时空隧道，记录下指定方法每次调用的...
String8 toString(const char* prefix = nullptr) const; // Dump a serialized representation of the stack trace to the specified printer. void print(Printer& printer) const; // Get the count of stack frames that are in this call stack. ...
public static void main(String[] args) { Inner inner = new Inner(); Outer outer = new Outer(inner); try { Outer cloneOuter = (Outer) outer.clone(); System.out.println("Outer:" + outer + " cloneOuter:" + cloneOuter); System.out.println("Inner:" + outer.getInner() + " clone...