Question

JAVA 调用 MATLAB 2012a 64位 ，生成jar包后，在win环境运行顺畅，迁移到linux环境报错

Exception in thread "main" java.lang.ExceptionInInitializerErrorat com.mathworks.toolbox.javabuilder.internal.MCRConfiguration.getProxyLibraryDir(MCRConfiguration.java:178)at com.mathworks.toolbox.javabuilder.internal.MCRConfiguration$MCRRoot.get(MCRConfiguration.java:
at com.mathworks.toolbox.javabuilder.internal.MWMCR.<clinit>(MWMCR.java:1466)
at com.mathworks.toolbox.javabuilder.MWUtil.GetUnknownClassID(MWUtil.java:727)
at com.mathworks.toolbox.javabuilder.MWClassID.<clinit>(MWClassID.java:41)
at com.cmdb.corn.farecast.FarecastPlan.doFarecastNew(FarecastPlan.java:307)
at com.cmdb.corn.farecast.FarecastPlan.farecastData(FarecastPlan.java:233)
at com.cmdb.corn.farecast.FarecastPlan.getHistoryData(FarecastPlan.java:138)
at com.cmdb.corn.farecast.FarecastPlan.executePlan(FarecastPlan.java:56)
at com.cmdb.corn.farecast.TestFarecast.main(TestFarecast.java:11)
Caused by: java.lang.NullPointerException
at com.mathworks.toolbox.javabuilder.internal.MCRConfiguration$ProxyLibraryDir.get(MCRConfiguration.java:143)
at com.mathworks.toolbox.javabuilder.internal.MCRConfiguration$ProxyLibraryDir.<clinit>(MCRConfiguration.java:173)
... 14 more

Answer 1

需要到Linux环境下编译成jar包，通用。Java是一次编写。不代表所有的class都能用。不同环境的机器需要重新编译。

追问

我不知道你是用MATLAB这个软件遇到过和我一样的情况，还是你是根据自己以往的java 开发经验说的？

追答

Java经验