在 finally 块中抛出异常 [英] throws Exception in finally blocks

问题描述

是否有一种优雅的方法来处理 finally 块中抛出的异常?

Is there an elegant way to handle exceptions that are thrown in finally block?

例如:

try {
  // Use the resource.
}
catch( Exception ex ) {
  // Problem with the resource.
}
finally {
   try{
     resource.close();
   }
   catch( Exception ex ) {
     // Could not close the resource?
   }
}

如何避免 finally 块中的 try/catch ?

How do you avoid the try/catch in the finally block?

推荐答案

我通常是这样做的:

try {
  // Use the resource.
} catch( Exception ex ) {
  // Problem with the resource.
} finally {
  // Put away the resource.
  closeQuietly( resource );
}

其他地方:

protected void closeQuietly( Resource resource ) {
  try {
    if (resource != null) {
      resource.close();
    }
  } catch( Exception ex ) {
    log( "Exception during Resource.close()", ex );
  }
}

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