首先，我想在演练中测试代码，但每一次我得到相同的异常：

myfunc.m：

function myfunc()

disp('hello from MYFUNC')

end

的Java：

class ShowImage {

public static void main(String[] args)

throws MatlabConnectionException, MatlabInvocationException

{

// create proxy

MatlabProxyFactoryOptions options =

new MatlabProxyFactoryOptions.Builder()

.setUsePreviouslyControlledSession(true)

.build();

MatlabProxyFactory factory = new MatlabProxyFactory(options);

MatlabProxy proxy = factory.getProxy();

// call builtin function

proxy.eval("disp('hello world')");

// call user-defined function (must be on the path)

proxy.eval("addpath('E:\\vm')");

proxy.feval("myfunc");

proxy.eval("rmpath('E:\\vm)");

// close connection

proxy.disconnect();

}}

和这里的例外：

Exception in thread "main" matlabcontrol.MatlabConnectionException: Could not launch MATLAB. Command: [matlab, -r, javaaddpath 'C:\Users\walaa\Desktop\matlabcontrol-4.0.0.jar'; matlabcontrol.MatlabClassLoaderHelper.configureClassLoading(); javarmpath 'C:\Users\walaa\Desktop\matlabcontrol-4.0.0.jar'; matlabcontrol.MatlabConnector.connectFromMatlab('PROXY_RECEIVER_42dd44d9-815e-41ad-bec9-e469718b5710', 2100);]

at matlabcontrol.RemoteMatlabProxyFactory.createProcess(RemoteMatlabProxyFactory.java:305)

at matlabcontrol.RemoteMatlabProxyFactory.requestProxy(RemoteMatlabProxyFactory.java:116)

at matlabcontrol.RemoteMatlabProxyFactory.getProxy(RemoteMatlabProxyFactory.java:134)

at matlabcontrol.MatlabProxyFactory.getProxy(MatlabProxyFactory.java:81)

at ShowImage.main(ShowImage.java:19)

Caused by: java.io.IOException: Cannot run program "matlab": CreateProcess error=2, The system cannot find the file specified

at java.lang.ProcessBuilder.start(Unknown Source)

at matlabcontrol.RemoteMatlabProxyFactory.createProcess(RemoteMatlabProxyFactory.java:292)

... 4 more

Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified

at java.lang.ProcessImpl.create(Native Method)

at java.lang.ProcessImpl.(Unknown Source)

at java.lang.ProcessImpl.start(Unknown Source)

... 6 more

我不知道什么是问题，任何帮助将不胜感激！