本文介绍了运行JavaCpp时出现UnsatisfiedLinkException示例（LegacyLibrary）的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我试图使用Visual构建和运行JavaCpp的 Studio 2008在Windows XP Professional（x86）上使用JDK 1.7.0和JavaCpp 0.3（bin），我得到以下输出。错误是在最后一个命令， java -cp javacpp.jar LegacyLibrary 。
I'm trying to build and run the LegacyLibrary Example of JavaCpp with Visual Studio 2008 on Windows XP Professional (x86) using JDK 1.7.0 and JavaCpp 0.3 (bin), and I get the following output. The error is on the last command, java -cp javacpp.jar LegacyLibrary.
C:\Documents and Settings\Brian\My Documents\Projects\Copy of Hello_JNI\src\graf
\JavaCpp>dir
Volume in drive C has no label.
Volume Serial Number is 9099-0685
Directory of C:\Documents and Settings\Brian\My Documents\Projects\Copy of Hell
o_JNI\src\graf\JavaCpp
22/01/2013 10:19 AM <DIR> .
22/01/2013 10:19 AM <DIR> ..
04/11/2012 09:00 PM 109,991 javacpp.jar
22/01/2013 10:18 AM 297 LegacyLibrary.h
22/01/2013 10:19 AM 1,058 LegacyLibrary.java
3 File(s) 111,346 bytes
2 Dir(s) 362,833,334,272 bytes free
C:\Documents and Settings\Brian\My Documents\Projects\Copy of Hello_JNI\src\graf
\JavaCpp>javac -cp javacpp.jar LegacyLibrary.java
C:\Documents and Settings\Brian\My Documents\Projects\Copy of Hello_JNI\src\graf
\JavaCpp>java -jar javacpp.jar LegacyLibrary
Generating source file: C:\Documents and Settings\Brian\My Documents\Projects\Co
py of Hello_JNI\src\graf\JavaCpp\jniLegacyLibrary.cpp
Building library file: C:\Documents and Settings\Brian\My Documents\Projects\Cop
y of Hello_JNI\src\graf\JavaCpp\windows-x86\jniLegacyLibrary.dll
cl /IC:\jdk1.7.0\include /IC:\jdk1.7.0\include\win32 "C:\Documents and Settings\
Brian\My Documents\Projects\Copy of Hello_JNI\src\graf\JavaCpp\jniLegacyLibrary.
cpp" /W3 /Oi /O2 /EHsc /Gy /GL /MD /LD /link "/OUT:C:\Documents and Settings\Bri
an\My Documents\Projects\Copy of Hello_JNI\src\graf\JavaCpp\windows-x86\jniLegac
yLibrary.dll" /LIBPATH:C:\jdk1.7.0\lib /LIBPATH:C:\jdk1.7.0\jre\bin\server jvm.l
ib
Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 15.00.21022.08 for 80x86
Copyright (C) Microsoft Corporation. All rights reserved.
jniLegacyLibrary.cpp
C:\Documents and Settings\Brian\My Documents\Projects\Copy of Hello_JNI\src\graf
\JavaCpp\jniLegacyLibrary.cpp(113) : warning C4996: 'strcpy': This function or v
ariable may be unsafe. Consider using strcpy_s instead. To disable deprecation,
use _CRT_SECURE_NO_WARNINGS. See online help for details.
c:\Program Files\Microsoft Visual Studio 9.0\VC\INCLUDE\string.h(74) : s
ee declaration of 'strcpy'
C:\Documents and Settings\Brian\My Documents\Projects\Copy of Hello_JNI\src\graf
\JavaCpp\jniLegacyLibrary.cpp(115) : warning C4996: 'strncpy': This function or
variable may be unsafe. Consider using strncpy_s instead. To disable deprecation
, use _CRT_SECURE_NO_WARNINGS. See online help for details.
c:\Program Files\Microsoft Visual Studio 9.0\VC\INCLUDE\string.h(157) :
see declaration of 'strncpy'
C:\Documents and Settings\Brian\My Documents\Projects\Copy of Hello_JNI\src\graf
\JavaCpp\jniLegacyLibrary.cpp(185) : warning C4996: 'strdup': The POSIX name for
this item is deprecated. Instead, use the ISO C++ conformant name: _strdup. See
online help for details.
c:\Program Files\Microsoft Visual Studio 9.0\VC\INCLUDE\string.h(207) :
see declaration of 'strdup'
C:\Documents and Settings\Brian\My Documents\Projects\Copy of Hello_JNI\src\graf
\JavaCpp\jniLegacyLibrary.cpp(340) : warning C4244: 'argument' : conversion from
'jlong' to 'size_t', possible loss of data
C:\Documents and Settings\Brian\My Documents\Projects\Copy of Hello_JNI\src\graf
\JavaCpp\jniLegacyLibrary.cpp(354) : warning C4244: 'argument' : conversion from
'jlong' to 'size_t', possible loss of data
C:\Documents and Settings\Brian\My Documents\Projects\Copy of Hello_JNI\src\graf
\JavaCpp\jniLegacyLibrary.cpp(370) : warning C4244: 'argument' : conversion from
'jlong' to 'size_t', possible loss of data
C:\Documents and Settings\Brian\My Documents\Projects\Copy of Hello_JNI\src\graf
\JavaCpp\jniLegacyLibrary.cpp(385) : warning C4244: 'argument' : conversion from
'jlong' to 'size_t', possible loss of data
C:\Documents and Settings\Brian\My Documents\Projects\Copy of Hello_JNI\src\graf
\JavaCpp\jniLegacyLibrary.cpp(393) : warning C4244: 'argument' : conversion from
'jlong' to 'size_t', possible loss of data
C:\Documents and Settings\Brian\My Documents\Projects\Copy of Hello_JNI\src\graf
\JavaCpp\jniLegacyLibrary.cpp(956) : warning C4800: 'jboolean' : forcing value t
o bool 'true' or 'false' (performance warning)
Microsoft (R) Incremental Linker Version 9.00.21022.08
Copyright (C) Microsoft Corporation. All rights reserved.
/out:jniLegacyLibrary.dll
/ltcg
/dll
/implib:jniLegacyLibrary.lib
"/OUT:C:\Documents and Settings\Brian\My Documents\Projects\Copy of Hello_JNI\sr
c\graf\JavaCpp\windows-x86\jniLegacyLibrary.dll"
/LIBPATH:C:\jdk1.7.0\lib
/LIBPATH:C:\jdk1.7.0\jre\bin\server
jvm.lib
jniLegacyLibrary.obj
Creating library jniLegacyLibrary.lib and object jniLegacyLibrary.exp
Generating code
Finished generating code
C:\Documents and Settings\Brian\My Documents\Projects\Copy of Hello_JNI\src\graf
\JavaCpp>java -cp javacpp.jar LegacyLibrary
Exception in thread "main" java.lang.UnsatisfiedLinkError: C:\Documents and Sett
ings\Brian\Local Settings\Temp\javacpp92803190928456\jniLegacyLibrary.dll: Can't
find dependent libraries
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1928)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1825)
at java.lang.Runtime.load0(Runtime.java:792)
at java.lang.System.load(System.java:1059)
at com.googlecode.javacpp.Loader.loadLibrary(Loader.java:422)
at com.googlecode.javacpp.Loader.load(Loader.java:372)
at com.googlecode.javacpp.Loader.load(Loader.java:319)
at LegacyLibrary$LegacyClass.<clinit>(LegacyLibrary.java:8)
at LegacyLibrary.main(LegacyLibrary.java:22)
C:\Documents and Settings\Brian\My Documents\Projects\Copy of Hello_JNI\src\graf
\JavaCpp>
推荐答案
问题是Visual Studio 2005和VS 2008不会自动链接到VC ++的内部库。解决方案是使用可执行文件中的必需库捆绑清单，如，或简单地使用Visual Studio 2010或更高版本。我使用VS 2010，我可以验证该示例现在运行正常。如果您碰巧尝试捆绑清单，请评论其他人以确认它是一个有效的修复。
The problem was that Visual Studio 2005 and VS 2008 do not automatically link to internal libraries of VC++. The solution is to either bundle a manifest with the required libraries in the executable, as described here, or to simply use Visual Studio 2010 or newer. I used VS 2010 and I can verify that the example now runs as expected. If you happen to try bundling the manifest, please comment for others to confirm that it's a valid fix.
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