blocks|key|3336075|text|你能通过调用System.load()+(http://java.sun.com/j2se/1.4.2/docs/api/java/lang/System.html#load(java.lang.String%2529)programmatically来加载你的本地库吗？此方法(与System.loadLibrary()不同，它允许您指定绝对路径。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3336076|entityMap|0|LINK|mutability|MUTABLE|url|http://java.sun.com/j2se/1.4.2/docs/api/java/lang/System.html#load(java.lang.String%2529)programmatically|1|http://java.sun.com/j2se/1.4.2/docs/api/java/lang/System.html#loadLibrary(java.lang.String%2529)^0|L|2V|0|3V|K|1|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]|$A|R|B|S|1|T]]|C|$]]|$1|D|3|-4|5|6|7|U|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|M]]]]

Can you get round this by calling <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/System.html#load(java.lang.String)" rel="nofollow noreferrer">System.load() </a>programmatically to load your native library? This method (unlike <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/System.html#loadLibrary(java.lang.String)" rel="nofollow noreferrer">System.loadLibrary()</a>) allows you to specify an absolute path.

blocks|key|3123165|text|SWT将必要的本机DLL放入JAR中。搜索"org.eclipse.swt.win32.win32.x86_3.4.1.v3449c.jar“以获取示例。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3123166|DLL必须位于JAR的根目录中，必须对JAR进行签名，并且DLL必须与META-INF/MANIFEST.MF中的校验和一起出现，以便VM获取它们。|3123167|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

SWT puts the necessary native DLLs into a JAR. Search for "org.eclipse.swt.win32.win32.x86_3.4.1.v3449c.jar" for an example.

The DLLs must be in the root of the JAR, the JAR must be signed and the DLL must appear with checksum in the META-INF/MANIFEST.MF for the VM to pick them up.

blocks|key|3336115|text|在Windows中，如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3336116|-Djava.library.path="C:/MyLibPath;%25PATH%25“|3336117|%25PATH%25是您的旧-Djava.library.path|3336118|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

In Windows, like this: 

-Djava.library.path="C:/MyLibPath;%PATH%" 

%PATH% is your old -Djava.library.path

blocks|key|3123215|text|在UNIX系统中，您可以附加到LD_LIBRARY_PATH环境变量。在Windows上，JVM自动将系统属性java.library.path设置为PATH；因此，如果dll在您的PATH上，那么就设置好了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3123216|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|$]]

In UNIX systems, you can append to the LD_LIBRARY_PATH environment variable. On Windows, the JVM automatically sets the system property, java.library.path, to PATH; so if the dll is on your PATH, then you're set.

blocks|key|3123250|text|如果您想在Eclipse中添加本机库而不在开发时干扰java.library.path+(以避免包含绝对路径和向启动配置中添加参数)，您可以在native+library+location下的Java+Build+path对话框中为每个Jar提供本机库位置的路径。请注意，本机库文件名必须与Jar文件名相对应。另请参阅此detailed+description。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3123251|entityMap|0|LINK|mutability|MUTABLE|url|http://www.eclipsezone.com/eclipse/forums/t49342.html^0|Q|H|4G|K|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]]|D|@$9|Q|A|R|1|S]]|E|$]]|$1|F|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

If you want to add a native library without interfering with <code>java.library.path</code> at development time in Eclipse (to avoid including absolute paths and having to add parameters to your launch configuration), you can supply the path to the native libraries location for each Jar in the Java Build Path dialog under Native library location. Note that the native library file name has to correspond to the Jar file name. See also this <a href="http://www.eclipsezone.com/eclipse/forums/t49342.html" rel="noreferrer">detailed description</a>.

blocks|key|3123273|text|忘记了这个问题..。我实际上是在问Eclipse，很抱歉最初没有说明这一点。而且答案似乎太简单了(至少在3.5版本中；可能在旧版本中也是如此)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3123274|Java运行配置的参数:+VM参数：|3123275|-Djava.library.path="${workspace_loc:project}\lib;${env_var:PATH}"|code-block|syntax|javascript|3123276|千万不要忘记引号，否则路径中的空格就会出现问题。|3123277|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Had forgotten this issue... I was actually asking with Eclipse, sorry for not stating that originally.
And the answer seems to be too simple (at least with 3.5; probably with older versions also):

Java run configuration's Arguments : VM arguments:

<pre><code>-Djava.library.path="${workspace_loc:project}\lib;${env_var:PATH}"
</code></pre>

Must not forget the quotation marks, otherwise there are problems with spaces in PATH.

blocks|key|350218|text|本机库文件名必须与Jar文件名相对应。这非常非常重要。请确保jar名称和dll名称相同。另外，请参阅Fabian+Steeg的帖子，我的jawin下载包含了dll和jar的不同名称。这是jawin.jar和jawind.dll，注意dll文件名中有额外的'd‘。我只是简单地将其重命名为jawin.dll，并将其设置为eclipse中的本地库，如"http://www.eclipsezone.com/eclipse/forums/t49342.html“一文中所述|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|350219|entityMap|0|LINK|mutability|MUTABLE|url|http://www.eclipsezone.com/eclipse/forums/t49342.html^0|30|1|4U|1H|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]]|D|@$9|Q|A|R|1|S]]|E|$]]|$1|F|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

The native library file name has to correspond to the Jar file name. This is very very important.
Please make sure that jar name and dll name are same.
Also,please see the post from Fabian Steeg
My download for jawin was containing different names for dll and jar.
It was jawin.jar and jawind.dll, note extra 'd' in dll file name.
I simply renamed it to jawin.dll and set it as a native library in eclipse as mentioned in post
"<a href="http://www.eclipsezone.com/eclipse/forums/t49342.html" rel="nofollow noreferrer">http://www.eclipsezone.com/eclipse/forums/t49342.html</a>"

blocks|key|3336226|text|窗口->首选项->Java->已安装的JRE。然后选择当前的JRE(JDK)并单击Edit。填充默认的VM参数：-Djava.library.path=/usr/local/xuggler/lib。完成了！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3336227|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|$]]

Window->Preferences->Java->Installed JREs. Then choose your current JRE(JDK) and click Edit.
Fill Default VM Arguments: -Djava.library.path=/usr/local/xuggler/lib.
Done!

blocks|key|3123360|text|由于某种原因，我无法让多个文件夹工作(好吧，有一段时间是这样的，但一旦我需要更多的dll和添加了更多的文件夹，路径中没有一个是空白的)。然后，我将所有需要的java.library.path复制到一个文件夹中，并将其作为我的all，它就起作用了。我没有任何解释--如果有人有，那就太好了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3123361|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|$]]

For some reason I couldn't get multiple folders to work (well it did for a while but as soon as I needed more dlls and added more folders, none with white spaces in the path). I then copied all needed dlls to one folder and had that as my java.library.path and it worked. I don't have an explanation - if anyone does, it would be great.

blocks|key|347571|text|在Windows上，我发现重要的事情是从命令行启动Eclipse，而不是从Start菜单或快捷方式启动，前提是本机DLL位于PATH中的目录中。显然，这确保了path上有正确的目录。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|347572|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|$]]

On Windows, I have found that the important thing is to start Eclipse from the command line rather than from the Start Menu or a shortcut, provided that the native DLL is in a directory in your PATH. Apparently, this ensures that the proper directory is on the path.

blocks|key|3123395|text|https://bugs.eclipse.org/bugs/show_bug.cgi?id=102239声明，在Eclipse的启动器中没有实现替代机制，至少在发布Juno之前没有实现。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3123396|因此，在不了解默认设置的情况下启动java.library.path时，(几乎)不可能将另一个库文件夹附加或预先添加到Eclipse。|3123397|我写的差不多是，因为应该可以在一个命令中让Eclipse启动、转储java.library.path的内容和停止Eclipse。转储将被解析，然后作为启动Eclipse的输入。|3123398|#!/bin/bash
#+get+default+value+of+java.library.path+(somehow)
default_lib_path=$(+start_dump_stop_eclipse_somehow+)++

#+now+launch+Eclipse
eclipse+--launcher.appendVmargs+\
+++++++++-vmargs+\
+++++++++-Djava.library.path="/my/native/lib/folder:${default_lib_path}"|code-block|syntax|javascript|3123399|entityMap|0|LINK|mutability|MUTABLE|url|https://bugs.eclipse.org/bugs/show_bug.cgi?id=102239^0|0|1G|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|Z|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|10|8|@]|9|@]|C|$K|L]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

<a href="https://bugs.eclipse.org/bugs/show_bug.cgi?id=102239" rel="nofollow">https://bugs.eclipse.org/bugs/show_bug.cgi?id=102239</a> states that there is no substitution mechanics implemented in Eclipse's launcher, at least no up to release Juno.

Thus it is (almost) impossible to append or prepend another library folder to java.library.path when launching Eclipse without prior knowledge of the default setting.

I wrote almost, cause it should be possible to let Eclipse startup, dump the content of java.library.path and stop Eclipse in one command. The dump would the be parsed and then taken as the input for launching Eclipse, i.e.

<pre><code>#!/bin/bash
# get default value of java.library.path (somehow)
default_lib_path=$( start_dump_stop_eclipse_somehow ) 

# now launch Eclipse
eclipse --launcher.appendVmargs \
 -vmargs \
 -Djava.library.path="/my/native/lib/folder:${default_lib_path}"
</code></pre>

blocks|key|3123416|text|许多现有的答案都假设您想要为特定项目设置它，但我需要为Eclipse本身设置它，以便支持SQL+Server+JDBC驱动程序的集成身份验证。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3123417|为此，我跟随these+instructions从Java命令行启动Eclipse，而不是从它的普通启动器。然后，我修改了该脚本，将我的-Djava.library.path参数添加到Java命令行。|offset|length|3123418|entityMap|0|LINK|mutability|MUTABLE|url|http://wiki.eclipse.org/Starting_Eclipse_Commandline_With_Equinox_Launcher^0|0|6|I|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

Many of the existing answers assume you want to set this for a particular project, but I needed to set it for Eclipse itself in order to support integrated authentication for the SQL Server JDBC driver.

To do this, I followed <a href="http://wiki.eclipse.org/Starting_Eclipse_Commandline_With_Equinox_Launcher" rel="nofollow">these instructions</a> for launching Eclipse from the Java commandline instead of its normal launcher. Then I just modified that script to add my -Djava.library.path argument to the Java commandline.

blocks|key|3336316|text|Rob+Elsner在上面的一条评论中提供的解决方案可以完美地工作(OSX+10.9，Eclipse+Kepler)。必须将它们的附加路径附加到由":“分隔的路径之后。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3336317|你也可以在23:01使用${system_property:java.library.path}+-+Rob+Elsner+Nov+22+'10|3336318|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

The solution offered by Rob Elsner in one of the comments above works perfectly (OSX 10.9, Eclipse Kepler). One has to append their additional paths to that separated by ":".

<blockquote>
 You could also use ${system_property:java.library.path} – Rob Elsner Nov 22 '10 at 23:01
</blockquote>

blocks|key|3123443|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3123444|：将库的路径添加到path环境变量中。|ordered-list-item|3123445|：将库的路径添加到LD_LIBRARY_PATH环境变量中。|3123446|：将库的路径添加到DYLD_LIBRARY_PATH环境变量中。|3123447|3123448|java.library.path在其相应的平台上使用上述变量的值进行初始化。|offset|length|style|CODE|3123449|这应该可以在任何IDE上工作。|3123450|您可以通过调用java+-XshowSettings:properties来测试该值是否为预期的值|3123451|entityMap^0|0|0|0|0|0|0|H|0|0|7|U|0^^$0|@$1|2|3|-4|4|5|6|U|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|V|7|@]|8|@]|9|$]]|$1|D|3|E|4|C|6|W|7|@]|8|@]|9|$]]|$1|F|3|G|4|C|6|X|7|@]|8|@]|9|$]]|$1|H|3|-4|4|5|6|Y|7|@]|8|@]|9|$]]|$1|I|3|J|4|5|6|Z|7|@$K|10|L|11|M|N]]|8|@]|9|$]]|$1|O|3|P|4|5|6|12|7|@]|8|@]|9|$]]|$1|Q|3|R|4|5|6|13|7|@$K|14|L|15|M|N]]|8|@]|9|$]]|$1|S|3|-4|4|5|6|16|7|@]|8|@]|9|$]]]|T|$]]

<ol>
<li>On Windows: Add the path to the library to the PATH environment variable.</li>
<li>On Linux: Add the path to the library to the LD_LIBRARY_PATH environment variable.</li>
<li>On Mac: Add the path to the library to the DYLD_LIBRARY_PATH environment variable.</li>
</ol>

<code>java.library.path</code> is initilized with the values of the variables above on its corresponding platform.

This should work on any IDE.

You can test if the value is what you expect by calling <code>java -XshowSettings:properties</code>

I got a native library that needs to be added to java.library.path. With JVM argument -Djava.library.path=path... I can set the path as I want.

My problem is that my other library (pentaho reporting) searches fonts based on the default java.library.path (including system directories etc) and the manual setting overrides the default path..

So : how can I add a path entry to the default java.library.path instead of overriding it (which seems to be done with -Djava.library.path)? (I wouldn't want to add the default path by hand, which wouldn't be nice for the sake of deployment)

EDIT: Sorry for missing details; I'm working with Eclipse. (The deployment is done with JNLP and there I can use nativelib under resources)

How to add native library to "java.library.path" with Eclipse launch (instead of overriding it)

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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我有一个本地库，需要添加到java.library.path中。使用JVM参数-Djava.library.path=path...我可以随心所欲地设置路径。我的问题是，我的另一个库(pentaho reporting)根据默认的java.library.path (包括系统目录等)搜索字体，而手动设置会覆盖默认路径。...

问如何使用Eclipse launch将本机库添加到"java.library.path“(而不是覆盖它)
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问如何使用Eclipse launch将本机库添加到"java.library.path“(而不是覆盖它)
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