我想创建将opencv嵌入到软件包中的可执行.jar文件。我的意思是我可以在另一台计算机上运行它。拜托,有人帮我吗???
我在文件SimpleSample.java
中有此代码:
import org.opencv.core.Core;
import org.opencv.core.Mat;
import org.opencv.core.CvType;
import org.opencv.core.Scalar;
class SimpleSample {
static{ System.loadLibrary(Core.NATIVE_LIBRARY_NAME); }
public static void main(String[] args) {
System.out.println("Welcome to OpenCV " + Core.VERSION);
Mat m = new Mat(5, 10, CvType.CV_8UC1, new Scalar(0));
System.out.println("OpenCV Mat: " + m);
Mat mr1 = m.row(1);
mr1.setTo(new Scalar(1));
Mat mc5 = m.col(5);
mc5.setTo(new Scalar(5));
System.out.println("OpenCV Mat data:\n" + m.dump());
}
}
我尝试用Ant构建build.xml
后运行它:
<project name="SimpleSample" basedir="." default="rebuild-run">
<property name="src.dir" value="src"/>
<property name="lib.dir" value="${ocvJarDir}"/>
<path id="classpath"><fileset dir="${lib.dir}" includes="**/*.jar"/></path>
<property name="build.dir" value="build"/>
<property name="classes.dir" value="${build.dir}/classes"/>
<property name="jar.dir" value="${build.dir}/jar"/>
<property name="main-class" value="${ant.project.name}"/>
<target name="clean"><delete dir="${build.dir}"/></target>
<target name="compile">
<mkdir dir="${classes.dir}"/>
<javac includeantruntime="false" srcdir="${src.dir}" destdir="${classes.dir}" classpathref="classpath"/>
</target>
<target name="jar" depends="compile">
<mkdir dir="${jar.dir}"/>
<jar destfile="${jar.dir}/${ant.project.name}.jar" basedir="${classes.dir}">
<manifest>
<attribute name="Main-Class" value="${main-class}"/>
</manifest>
</jar>
</target>
<target name="run" depends="jar">
<java fork="true" classname="${main-class}">
<sysproperty key="java.library.path" path="${ocvLibDir}"/>
<classpath>
<path refid="classpath"/>
<path location="${jar.dir}/${ant.project.name}.jar"/>
</classpath>
</java>
</target>
<target name="rebuild" depends="clean,jar"/>
<target name="rebuild-run" depends="clean,run"/>
</project>
我有这个例外:
在线程“主”中的异常java.lang.NoClassDefFoundError:SimpleSample处的org / opencv / core / Core。(未知源)创建人:java.lang.ClassNotFoundException:org.opencv.core.Core位于java.net.URLClassLoader.findClass(URLClassLoader.java:381)在java.lang.ClassLoader.loadClass(ClassLoader.java:424)在sun.misc.Launcher $ AppClassLoader.loadClass(Launcher.java:331)在java.lang.ClassLoader.loadClass(ClassLoader.java:357)... 1个以上
然后我尝试了蚀,并且得到了:
线程“主”中的异常java.lang.UnsatisfiedLinkError:否java.library.path中的opencv_java300java.lang.ClassLoader.loadLibrary(ClassLoader.java:1864)在java.lang.Runtime.loadLibrary0(Runtime.java:870)在java.lang.System.loadLibrary(System.java:1122)在在java.lang.Class.forName0(Native)上的test.Test。(Test.java:10)方法),位于java.lang.Class.forName(Class.java:348)org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:56)
要生成可以正常工作的jar文件,我必须做什么???谢谢!
提示:我已经将opencv构建为静态库:
cmake -DBUILD_SHARED_LIBS = OFF ..
您需要将静态库与jar文件打包,将该静态库加载到临时文件,然后从该路径加载静态库。
在名为opencv的资源中创建一个文件夹,并将.dll
或.dylib
文件放在相应的文件夹中。
public class LoadLibrary {
public static void loadOpenCV() {
try {
InputStream inputStream = null;
File fileOut = null;
String osName = System.getProperty("os.name");
System.out.println(osName);
if (osName.startsWith("Windows")) {
int bitness = Integer.parseInt(System.getProperty("sun.arch.data.model"));
if (bitness == 32) {
inputStream = LoadLibrary.class.getResourceAsStream("/opencv/windows/x86/opencv_java300.dll");
fileOut = File.createTempFile("lib", ".dll");
} else if (bitness == 64) {
inputStream = LoadLibrary.class.getResourceAsStream("/opencv/windows/x64/opencv_java300.dll");
fileOut = File.createTempFile("lib", ".dll");
} else {
inputStream = LoadLibrary.class.getResourceAsStream("/opencv/windows/x86/opencv_java300.dll");
fileOut = File.createTempFile("lib", ".dll");
}
} else if (osName.equals("Mac OS X")) {
inputStream = LoadLibrary.class.getResourceAsStream("/opencv/mac/libopencv_java300.dylib");
fileOut = File.createTempFile("lib", ".dylib");
}
if (fileOut != null) {
OutputStream outputStream = new FileOutputStream(fileOut);
byte[] buffer = new byte[1024];
int length;
while ((length = inputStream.read(buffer)) > 0) {
outputStream.write(buffer, 0, length);
}
inputStream.close();
outputStream.close();
System.load(fileOut.toString());
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
在Main中或在调用OpenCV函数之前将Static { System.loadLibrary(Core.NATIVE_LIBRARY_NAME); }
更改为LoadLibrary.loadOpenCV();
。
并尝试从Eclipse导出jar文件。它将正常工作。
您的问题解决了吗?我也收到同样的警告。Java HotSpot(TM)64位服务器VM警告:您已加载库/tmp/lib6391393096712220801.so,该库可能已禁用堆栈保护。 VM将立即尝试修复堆栈保护。强烈建议您使用'execstack -c'修复该库,或将其链接至'-z