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After using RXTX for a number of different projects, I've come across many annoying discrepancies and issues that can only sensibly be put down to bugs in the library - deadlocks, race hazards, and monitor threads deep in the RXTX library being left open preventing the program from closing (even though all ports I was using have been closed!) Running the latest "unstable" version has helped a bit, but it's still far from where I'd call it reliable, and activity on the project seems rather low at present.

However, searching for free cross-platform alternatives to RXTX doesn't seem to come up with much else.

Is there another library that anyone's tried with more luck? I don't need parallel port support, just serial, and it doesn't necessarily have to be compatible with RXTX or the javax.comm API.

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7 回答 7

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We have moved to java-simple-serial-connector which seems to be very stable and comfortable at the current release 0.9.0. For now, it works on windows and linux systems. We use it for modem interactions.

于 2012-09-07T11:55:13.287 回答
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There's jSerialComm too.

Serial communication in Java is a mess. I've had trouble with jSSC with a virtual usb serial on linux, but with serial-comm it connected.

RXTX is a mess.

At least I think that now this SO question has all of the worth mentioning serial communication java libraries.

于 2013-07-31T09:38:01.713 回答
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There's a few of them out there now, now that Arduino is pretty popular.

There's Serialio

and PureJavaComm, but it's pretty early on in development from what I can see.

it really depends on what your needs are. RXTX has been ported pretty much everywhere, so it is widely available.

于 2012-09-07T14:01:53.217 回答
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One of the issues of RXTX I faced was the delay closing the port. When checking with setserial the port configuration I discovered a parameter closing_delay=3000. This means that the port closes 3 sec after the close() method was executed. Resetting the closing_delay toany value is ignored by RXTX. RXTX insists in 3sec delay.

the JSSC library performed to our satisfaction

于 2014-02-17T13:56:54.180 回答
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Serialio lib is $49/platform/developer seat which gets you unlimited distribution in unlimited apps so not too pricey. The Mac library has been stable and reliable for us in an undemanding application and availability/compatibility has been good throughout for the various Mac platforms and OS/X releases.

于 2014-02-07T18:30:05.050 回答
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I use socat configured to serve a socket for a serial port. The downside is that baud rate etc. is given to the socat invocation, it is not something you can readily alter from your program. On the upside is I can connect across a network without anything more than changing the IP address I connect to.

于 2015-06-22T21:53:18.087 回答
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jSerialCom is good ! 'https://github.com/Fazecast/jSerialComm'

And here is its' wiki page： https://github.com/Fazecast/jSerialComm

于 2020-12-30T03:55:45.410 回答