Using Ecilpse (Java) to invoke MATLAB code

1 Installing the Java environment:

Http://www.oracle.com/technetwork/java/javase/downloads/index.html

Download the latest version of the JDK and install it, Cloudsim needs to run in jdk1.6 or later.

Take jdk1.6.0_24 as an example, the default installation directory is C:\Program files\java\jdk1.6.0_24.

Set Environment variables:

New system variable java_home, the variable value is set to the JDK installation directory, that is C:\Program files\java\jdk1.6.0_24;

Add path%java_home%\bin in path ; %java_home%\bin\javac;

Add path %java_home%\lib\dt.jarin ClassPath ; %java_home%\lib\tools.jar

2 matlab code compiled into a Java package:

Enter a command in MATLAB to see if you can access the Java configuration:

>> getenv Jave_home

The configuration will return the JDK path that you configured, and if MATLAB is already open during the configuration path, restart.

Create a new function file funtest.m(must be a function file: New file->function! There can be only functions in the file, no independent scripts)

Enter the following:

 out] = Funtest (A, b)    out= a + b; end 

In the Command Window , enter:

>> Deploytool

Find the folder corresponding to the project name "Distrib\funtest.jar" This file is the generated Java package. (funtest path is best not too deep!) Otherwise you will get an error. )

3 JRE with 64/32 bit MATLAB+64/32 bit:

(Remember to keep it consistent.) Otherwise, the error will be invoked, or the same 32-bit is used, as in the case of 64 bits)

32/64-bit JRE Download: http://www.java.com/zh_CN/download/manual.jsp

Install after download.

4 Use Ecilpse to invoke the Java package generated by MATLAB.

Find the MATLAB installation path, I am here D:\Program Files\matlab\r2013a\toolbox\compiler\deploy\win64 below the MCRInstaller.exe file . For installation.

Create a new Java project and insert the following code:

Package Test;import Com.mathworks.toolbox.javabuilder.*; import funtest.*; Public classMyfuntest {/** * @param args * @throws mwexception*/     Public Static voidMain (string[] args) throws Mwexception {//TODO auto-generated Method StubCfuntest cp=Newcfuntest (); Object bn[]=NULL; Mwnumericarray a=NULL; Mwnumericarray b=NULL; A=NewMwnumericarray (Double.valueof (5), mwclassid.double); b=NewMwnumericarray (Double.valueof (5), mwclassid.double); Bn=cp.funtest (1, A, b); System. out. println (bn[0]); }}

Post-run output results: 10

Call succeeded!

Cloudsim Installation and configuration

Download Cloudsim from http://www.cloudbus.org/cloudsim/, take CloudSim2.1.1 for example. Unzip it to a disk, such as C:\cloudsim-2.1.1.

Set Environment variables:

Add path C:\cloudsim-2.1.1\jars\cloudsim-2.1.1.jar to ClassPath ; C:\cloudsim-2.1.1\jars\cloudsim-examples-2.1.1.jar

In this case, the MATLAB code can be called in the Cloudsim in the same way.

Using Ecilpse (Java) to invoke MATLAB code