loggingexceptions.java

来自「Thinking in JAVA第四版源代码」· Java 代码 · 共 41 行

//: exceptions/LoggingExceptions.java
// An exception that reports through a Logger.
import java.util.logging.*;
import java.io.*;

class LoggingException extends Exception {
  private static Logger logger =
    Logger.getLogger("LoggingException");
  public LoggingException() {
    StringWriter trace = new StringWriter();
    printStackTrace(new PrintWriter(trace));
    logger.severe(trace.toString());
  }
}

public class LoggingExceptions {
  public static void main(String[] args) {
    try {
      throw new LoggingException();
    } catch(LoggingException e) {
      System.err.println("Caught " + e);
    }
    try {
      throw new LoggingException();
    } catch(LoggingException e) {
      System.err.println("Caught " + e);
    }
  }
} /* Output: (85% match)
Aug 30, 2005 4:02:31 PM LoggingException <init>
SEVERE: LoggingException
        at LoggingExceptions.main(LoggingExceptions.java:19)

Caught LoggingException
Aug 30, 2005 4:02:31 PM LoggingException <init>
SEVERE: LoggingException
        at LoggingExceptions.main(LoggingExceptions.java:24)

Caught LoggingException
*///:~