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...
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,方便定位问题: try { // 一些可能抛出包装过的异常的操作 }...
//以list的方式得到throwable的异常链 public static List<Throwable> getCausalChain(Throwable throwable) //返回最底层的异常 public static Throwable getRootCause(Throwable throwable) //把受检查的异常转换为运行时异常 //获取异常调用链的描述输出(每一行都有) public static String getStackTraceAsString(Throwabl...
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...
StackTraceElement frame = stack[ix]; String cname = frame.getClassName(); if (!cname.equals("java.util.logging.Logger")) // Weve found the relevant frame. … // 这里的代码省略 } // We haven found a suitable frame, so just punt. This is ...
getStackTraceAsString(e); System.out.println(errorMsg); //如果e是FileNotFoundException,直接抛出 Throwables.propagateIfInstanceOf(e, FileNotFoundException.class); //其他Throwable 转为 RuntimeException类抛出 throw Throwables.propagate(e); } } 欢迎指正文中错误 关注公众号,一起交流 http://weixin....
()V 8: aload_0 9: getfield #5 // Field date:Ljava/lang/String; 12: invokevirtual #10 // Method java/lang/StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder; 15: ldc #11 // String by 17: invokevirtual #10 // Method java/lang/StringBuilder.append:(Ljava/lang/String;)...
Path path=Paths.get("data.txt");try(Stream<String>stream=Files.lines(path)){// 使用 stream 处理数据}catch(IOException e){e.printStackTrace();} 通过生成器创建:除了从现有的数据源创建 Stream,我们还可以使用生成器来生成元素。Java 8 中提供了Stream.generate()方法和Stream.iterate()方法来创建无限 ...
代码语言:javascript 代码运行次数:0 运行 AI代码解释 try { Stream<String> fileStream = Files.lines(Paths.get("data.txt"), Charset.defaultCharset()); } catch (IOException e) { e.printStackTrace(); } 2.5:函数创建 函数创建,创建无限流
}catch(Throwable t) { Throwables.propagateIfPossible(t, Exception.class); Throwables.propagate(t); }returnnull; } } Guava的异常链处理方法: 1.Throwable getRootCause(Throwable) 2.List getCausalChain(Throwable) 3.String getStackTraceAsString(Throwable)...