Question

我决定尝试编写一个人工神经网络。我计划在Java应用程序中使用它，但该库是用C ++编写的。

考虑到这一点，我决定尝试＆＃34; razobrotsya JNI＆＃34;。

有人可以帮我解决问题。我试图在Java中使用库openANN，但在编译时，我收到以下错误：

/usr/lib/jvm/java-7-openjdk-amd64/bin/java: symbol lookup error: /home/user/workspace/opneANN_java_test/libfor_java_test.so: undefined symbol: _ZN7OpenANN3NetC1Ev

forJavaNativeAnn.cpp：

#include <OpenANN/OpenANN>
#include <OpenANN/io/Logger.h>
#include <OpenANN/io/DirectStorageDataSet.h>
#include <OpenANN/util/Random.h>
#include <Eigen/Core>
#include <iostream>
#include <eigen3/Eigen/src/Core/Matrix.h>
#include "com_centreit_NativeAnn.h"

JNIEXPORT void JNICALL Java_com_centreit_NativeAnn_run(JNIEnv *env, jclass myclass) {
    const int d = 4;
    const int f = 4;
    const int n = 18;
    Eigen::MatrixXd x(n, d);
    Eigen::MatrixXd t(n, f);
    x <<
            2, 0, 0, 0,
            2, 0, 0, 1,
            2, 0, 1, 1,
            2, 0, 1, 2,
            2, 1, 0, 2,
            2, 1, 0, 1,
            1, 0, 0, 0,
            1, 0, 0, 1,
            1, 0, 1, 1,
            1, 0, 1, 2,
            1, 1, 0, 2,
            1, 1, 0, 1,
            0, 0, 0, 0,
            0, 0, 0, 1,
            0, 0, 1, 1,
            0, 0, 1, 2,
            0, 1, 0, 2,
            0, 1, 0, 1;
    t <<
            0, 0, 1, 0,
            0, 0, 1, 0,
            1, 0, 0, 0,
            1, 0, 0, 0,
            0, 0, 0, 1,
            1, 0, 0, 0,
            0, 0, 1, 0,
            0, 0, 0, 1,
            1, 0, 0, 0,
            0, 0, 0, 1,
            0, 0, 0, 1,
            0, 0, 0, 1,
            0, 0, 1, 0,
            0, 0, 0, 1,
            0, 0, 0, 1,
            0, 1, 0, 0,
            0, 1, 0, 0,
            0, 0, 0, 1;
    OpenANN::Net net;
    OpenANN::makeMLNN(net, OpenANN::LOGISTIC, OpenANN::LOGISTIC, d, f, 1, 1200);
    net.trainingSet(x, t);
    Eigen::VectorXd v(4);
    v << 2, 0, 0, 0;
    Eigen::VectorXd out = net(v);
    std::cout << out << std::endl;
}

NetBeans IDE中的

make命令：

g++ -m64   -c -O2 -I/usr/lib/jvm/java-1.7.0-openjdk-amd64/include -std=c++98 -fPIC  -MMD -MP -MF "build/Release/GNU-Linux-x86/forJavaNativeAnn.o.d" -o build/Release/GNU-Linux-x86/forJavaNativeAnn.o forJavaNativeAnn.cpp
mkdir -p dist/Release/GNU-Linux-x86
g++ -m64    -o dist/Release/GNU-Linux-x86/libfor_java_test.so build/Release/GNU-Linux-x86/forJavaNativeAnn.o  -shared -fPIC

我的Java代码：

public class NativeAnn {
    static {
        System.loadLibrary("for_java_test");
    }
    native public static void run();
}

未定义的符号：“_ ZN7OpenANN3NetC1Ev”

0 个答案: