blocks|key|1973880|text|您还可以尝试使用南国防军访问本机库。JNA提供Java程序，可以轻松访问本机共享库(Windows上的DLL)，而无需编写Java代码--不需要JNI或本机代码。如果他们的API相当直截了当，这可能是阻力最小的路径。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1973881|请参见他们的入门指南，其中他们调用了一些本地代码(printf和GetSystemTime)。|1973882|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/twall/jna|1|https://github.com/twall/jna/blob/master/www/GettingStarted.md^0|8|4|0|0|6|4|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]]|C|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|F|3|-4|5|6|7|X|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]]]

You could also try to use <a href="https://github.com/twall/jna" rel="nofollow noreferrer">JNA</a> for accessing the native library. JNA provides Java programs easy access to native shared libraries (DLLs on Windows) without writing anything but Java code—no JNI or native code is required. If their API is fairly straight foward, this might be the path of least resistance.

See their <a href="https://github.com/twall/jna/blob/master/www/GettingStarted.md" rel="nofollow noreferrer">getting started guide</a> where they call some native code (printf and GetSystemTime).

blocks|key|1973833|text|嗯，有JNBridge和EZ+JCom，只是谷歌搜索的结果。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1973834|您还可以使用IKVM，这是一种略有不同的方法。|1973835|(出于兴趣，你有什么理由不想学习.NET？这是一个很好的平台，C#是一种可爱的语言.)|1973836|entityMap|0|LINK|mutability|MUTABLE|url|http://www.jnbridge.com/index.htm|1|http://www.ezjcom.com/dotnet.html|2|http://www.ikvm.net/^0|3|8|0|C|7|1|0|6|4|2|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]|$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@$A|11|B|12|1|13]]|C|$]]|$1|F|3|G|5|6|7|14|8|@]|9|@]|C|$]]|$1|H|3|-4|5|6|7|15|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]|P|$5|K|L|M|C|$N|Q]]|R|$5|K|L|M|C|$N|S]]]]

Well, there's <a href="http://www.jnbridge.com/index.htm" rel="nofollow noreferrer">JNBridge</a> and <a href="http://www.ezjcom.com/dotnet.html" rel="nofollow noreferrer">EZ JCom</a>, just from a Google search.

You could also use <a href="http://www.ikvm.net/" rel="nofollow noreferrer">IKVM</a> which is a slightly different approach.

(Any reason for not wanting to learn .NET, out of interest? It's a nice platform, and C# is a lovely language...)

blocks|key|439955|text|如果它们有驱动程序的C%2B%2B版本，那么您可以使用JNI编写一个包装器，然后在Java中加载它。JNI可能有点麻烦，但是它可以让您使用他们驱动程序的C%2B%2B版本，如果不需要的话，根本不必处理.Net。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|439956|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

If they have C++ versions of the drivers then you could write a wrapper around it using JNI and then load that in Java. JNI can be a bit of a pain, but it would let you use the C++ version of their drivers and not have to deal with .Net at all if you don't want.

blocks|key|440068|text|我倾向于使用C#作为深度终端的建议，因为它非常类似于Java。我这样做了，并使用IKVM编译了我最喜欢的Java库。对于.NET程序集，您可以启动几乎所有的核心java运行时类，因此，如果您厌倦了试图找到正确的C#集合类型，则始终可以返回到java.util。(但没有通用集合。不知道原因。)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|440069|取决于您所处的平台，您也有几种免费IDE的选择。对于windows，您可以免费获得Visual，但我也使用SharpDevelop。您还可以在Linux上获得Mono+(我认为还有一些Unix的味道)。|offset|length|440070|如果您已经了解C#，那么它的学习曲线是很浅的。我只在地雷上引爆了1.5条四肢，这些地雷是从不知道的原因中冒出来的，但解决办法很容易。最糟糕的事情是那些糟糕的开发人员文档，这些文档由于速度太慢而成为了可怕的。我真的很怀念JavaDoc的暴躁。在线文档不仅速度非常慢，还因为某些人不确定地决定将类摘要、构造函数和方法/属性放在单独的页面上，从而使问题变得更加复杂，因此，这需要花费很长时间。有人说要获得docs安装程序，并在本地安装docs，以获得稍微改进的体验。我想这主意不错。|style|BOLD|440071|entityMap|0|LINK|mutability|MUTABLE|url|http://www.icsharpcode.net/OpenSource/SD/^0|0|1H|C|0|0|2R|3|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@$D|T|E|U|1|V]]|A|$]]|$1|F|3|G|5|6|7|W|8|@$D|X|E|Y|H|I]]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]]]

I am partial to the recommendation to jump in the deep end with C# since it is so similar to Java. I did this and used IKVM to compile my favorite Java libs. to .NET assemblies and you get [nearly] all the core java runtime classes to boot, so if you tire of trying to find just the right C# collection type, you can always go back to java.util. (No generic collections though. Not sure why.) 

Depending on what platform you're on, you have several choices for free IDEs too. For windows you can get Visual Studio Express for free but I also use <a href="http://www.icsharpcode.net/OpenSource/SD/" rel="nofollow noreferrer">SharpDevelop</a>. You can also get the Mono IDE on Linux (and a few flavours of Unix, I think ?).

The C# learning curve is shallow if you already know Java. I only blew off 1.5 limbs on landmines that came out of nowhere for reasons I still don't understand, but workarounds were easy to come by. The worst thing about it was the darn developer docs which are AWFUL on account of being so slow. I really miss the snappiness of JavaDoc. Not only are the online docs incredibly slow, the problem is compounded by someones's iffy decision to put class summaries, constructors and methods/properties all on seperate pages so it just takes forever. Someone said to get the docs installer and install docs locally for a slightly improved experience. Not a bad idea I suppose.

blocks|key|753334|text|如果您有一个Java应用程序，其他人提到的JNI将是最好的选择。编写一些包装类，仅此而已。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|753335|如果编写包装是一项太大的任务(取决于必须包装的方法的数量)，请查看大口。我认为它自动生成包装，但我从未真正使用过它。|offset|length|753336|如果您想用Java语言编写代码，但不关心您的程序是否会在JRE/JVM上运行，那么您也可以使用Microsoft+J#。基本上，它正在编写Java，编译成.NET字节码，并且可以使用驱动程序的.NET类以及现有的Java类。使用J#时，如果您的现有Java代码比Java1.4更新，则会遇到问题，请查看如何解决这些问题的这个问题。|753337|从那时起，您可以在以后添加J#、C#或任何其他.NET语言的代码。但是，您不会很容易地回到JRE/JVM。|753338|entityMap|0|LINK|mutability|MUTABLE|url|http://www.swig.org/|1|https://stackoverflow.com/questions/311599/how-to-use-generics-in-a-world-of-mixed-java-versions^0|0|X|2|0|0|4G|4|1|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@]|9|@$D|V|E|W|1|X]]|A|$]]|$1|F|3|G|5|6|7|Y|8|@]|9|@$D|Z|E|10|1|11]]|A|$]]|$1|H|3|I|5|6|7|12|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|13|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]|R|$5|M|N|O|A|$P|S]]]]

If you have a Java application, the JNI mentioned by the others will be the way to go. You write some wrapper classes, and that's it.

If writing the wrappes is a too big task (depending on the number of methods you have to wrap), have a look at <a href="http://www.swig.org/" rel="nofollow noreferrer" title="SWIG">SWIG</a> . I think it generates wrappers automatically, but I never actually used it.

If you want to code in the Java language, but you don't care if your program will run on the JRE/JVM, then you might as well use Microsoft J#. Basically, it's writing Java-Code wich is compiled to .NET-Bytecode and can use the .NET classes of the driver as well as your existing Java classes. With J# you will run into problems if your existing Java-code is newer than Java 1.4, look at <a href="https://stackoverflow.com/questions/311599/how-to-use-generics-in-a-world-of-mixed-java-versions">this question</a> on how to solve them. 

From that point on, you could later add code in J#, C# or any other .NET language. However, you won't get back to the JRE/JVM easily.

blocks|key|1973943|text|我是jni4net的作者，它是JVM和CLR之间的开放源码进程间桥梁。它是建立在JNI和PInvoke之上的。不需要C/C%2B%2B代码。我希望它能帮到你。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1973944|entityMap|0|LINK|mutability|MUTABLE|url|http://jni4net.sf.net/^0|2|7|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

I am author of <a href="http://jni4net.sf.net/" rel="nofollow noreferrer">jni4net</a>, open source interprocess bridge between JVM and CLR. It's build on top of JNI and PInvoke. No C/C++ code needed. I hope it will help you.

Are there inexpensive or free gateways from .NET to Java? I'm looking at some data acquisition hardware which has drivers for C/C++ and .NET -- I really don't want to do any programming in .NET.

Update: I haven't done what I originally wanted to do, but I've done something similar, using JNA to encapsulate some functions from a DLL, in order to control a USB hardware device from Java. (the DLL comes from the device manufacturer) It works really nicely. Thanks!

Accessing .NET/dll libraries/components from Java?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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是否有从.NET到Java的廉价或免费网关？我在看一些数据采集硬件，它为C/C++和.NET提供了驱动程序--我真的不想用.NET进行任何编程。更新:我没有做我最初想做的事情，但我做了一些类似的事情，我使用JNA封装了DLL中的一些功能，以便从Java控制USB硬件设备。( DLL来自设备制造商)它的工作非常好。谢谢!

问从Java访问.NET/dll库/组件？
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