我正在尝试处理管道的 im4java 示例 TestCase10。
https://github.com/Widen/im4java/blob/master/src/org/im4java/test/TestCase10.java
public class im4Test {
public static void main(String[] args) throws Exception {
IMOperation op = new IMOperation();
op.addImage("-"); // read from stdin
op.addImage("tif:-"); // write to stdout in tif-format
// set up pipe(s): you can use one or two pipe objects
FileInputStream fis = new FileInputStream("ABC.png");
FileOutputStream fos = new FileOutputStream("ABC.tif");
// Pipe pipe = new Pipe(fis,fos);
Pipe pipeIn = new Pipe(fis,null);
Pipe pipeOut = new Pipe(null,fos);
// set up command
ConvertCmd convert = new ConvertCmd();
convert.setInputProvider(pipeIn);
convert.setOutputConsumer(pipeOut);
convert.run(op);
fis.close();
fos.close();
}
}
面对以下异常，非常感谢任何有关正在发生的事情的线索。
Exception in thread "main" org.im4java.core.CommandException: java.io.IOException: The pipe is being closed
at org.im4java.core.ImageCommand.run(ImageCommand.java:219)
at com.cvc.image.im4Test.main(im4Test.java:28)
Caused by: java.io.IOException: The pipe is being closed
at java.io.FileOutputStream.writeBytes(Native Method)
at java.io.FileOutputStream.write(FileOutputStream.java:326)
at java.io.BufferedOutputStream.write(BufferedOutputStream.java:122)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
at java.io.FilterOutputStream.close(FilterOutputStream.java:158)
at org.im4java.process.ProcessStarter.processInput(ProcessStarter.java:261)
at org.im4java.process.ProcessStarter.waitForProcess(ProcessStarter.java:423)
at org.im4java.process.ProcessStarter.run(ProcessStarter.java:313)
at org.im4java.core.ImageCommand.run(ImageCommand.java:215)
... 1 more
注意：在 windows 上运行，并使用 ImageMagick。