库存在，与Java的架构相同，但我仍然得到Java.lang.UnsatifiedLink错误：无法加载库

我正在运行64个windows。我的java版本说：

java version "1.8.0_60"
Java(TM) SE Runtime Environment (build 1.8.0_60-b27)
Java HotSpot(TM) 64-Bit Server VM (build 25.60-b23, mixed mode)

我的项目是在ApacheTomcat服务器上运行的GWT Spring项目，上面的java属性应用于服务器（据说这是为了澄清服务器没有意外地运行不同的java版本）

在Java代码中，我使用

System.getProperty（“sun.arch.data.model”）

来确定Java版本，并根据结果加载64位或32位dll。在特定情况下，我现在运行64位，因此需要64位dll文件。我将文件放置在以下位置：

D:\programs\apache-tomcat-7.0.64-windows-x64\webapps\war\WEB-INF\lib\MY_LIBRARYx64.dll

在java代码中，我使用以下函数加载库：

private void setLibraryPath_private(String libraryPath) {

    // Some magic which doesn't work anyway
    File path = new File(configService.getProjectPrefix() + libraryPath);


    try {
        // Get valid canonical path (special case of absolute path)
        path = new File(path.getCanonicalPath());
        // Check for readability of that location
        if(!path.canRead())
            throw new IOException("Cannot read from this file.");
    }
    catch(IOException e) {
        logger.error("Invalid path to R220 library: "+path.getAbsolutePath(), e);
    }

    // Remember path as string
    this.libraryPath = path.getAbsolutePath();
    try {
        // Load it
        library =
        (R220) Native.loadLibrary(path.getCanonicalPath(), R220.class);
    }
    catch(Throwable e) {
        // TODO: After loading problem is solved, probably replace throw with the logging
        //logger.error("Failed to load R220 library: "+path.getAbsolutePath(), e);          
        throw new IllegalArgumentException("Failed to load R220 library: "+path.getAbsolutePath(), e);
    }
    // I don't know what this is
    library.initLogger(configService.getLog4cplusConfigFilePath()); 
}

但在我的日志中，我仍然得到错误：

[INFO ] 2015-09-21 15:52:26,038 cz.techsys.web.server.R220LibService - Running 64bit version of the native libary.
[ERROR] 2015-09-21 15:52:26,113 cz.techsys.web.server.R220LibService - Failed to load R220 library: D:\programs\apache-tomcat-7.0.64-windows-x64\webapps\war\WEB-INF\lib\MY_LIBRARYx64.dll
java.lang.UnsatisfiedLinkError: Unable to load library 'D:\programs\apache-tomcat-7.0.64-windows-x64\webapps\war\WEB-INF\lib\MY_LIBRARYx64.dll': The specified module could not be found.

    at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:163)
    at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:236)
    at com.sun.jna.Library$Handler.<init>(Library.java:140)
    at com.sun.jna.Native.loadLibrary(Native.java:379)
    at com.sun.jna.Native.loadLibrary(Native.java:364)

不用说，这没有任何影响，除了错误消息现在稍微短了一点：

[WARN ] 2015-09-21 16:33:56,819 cz.techsys.web.server.R220LibService - 
       Lib path: D:\programs\apache-tomcat-7.0.64-windows-x64\webapps\war\WEB-INF\lib
       Lib name:WebSightR220libx64
[ERROR] 2015-09-21 16:33:56,882 cz.techsys.web.server.R220LibService - Failed to load R220 library: D:\programs\apache-tomcat-7.0.64-windows-x64\webapps\war\WEB-INF\lib\WebSightR220libx64.dll
java.lang.UnsatisfiedLinkError: Unable to load library 'WebSightR220libx64': The specified module could not be found.

    at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:163)
    at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:236)

---

您已将

.dll

添加到库名称？库不在可访问位置，无法从WEB-INF/lib访问本地库；它们必须由本机链接器读取。LD_LIBRARY_路径或（在Windows上）路径。我不明白。为什么我不能在任何绝对路径上加载库？无论如何，我试过了——我使用了

System.setProperty（“java.library.path”，dir）和我传递的库名没有扩展名。它仍然不起作用。
[WARN ] 2015-09-21 16:33:56,819 cz.techsys.web.server.R220LibService - 
       Lib path: D:\programs\apache-tomcat-7.0.64-windows-x64\webapps\war\WEB-INF\lib
       Lib name:WebSightR220libx64
[ERROR] 2015-09-21 16:33:56,882 cz.techsys.web.server.R220LibService - Failed to load R220 library: D:\programs\apache-tomcat-7.0.64-windows-x64\webapps\war\WEB-INF\lib\WebSightR220libx64.dll
java.lang.UnsatisfiedLinkError: Unable to load library 'WebSightR220libx64': The specified module could not be found.

    at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:163)
    at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:236)