java.lang.UnsatisfiedLinkError:java.library.path中没有jniLegacyLibrary

时间:2015-08-05 05:35:12

标签: java c++ eclipse javacpp

我正在使用javacpp从Java访问cpp。

我已经尝试过文档中提供的示例

cpp代码:

#include <string>

namespace LegacyLibrary {
    class LegacyClass {
        public:
            const std::string& get_property() { return property; }
            void set_property(const std::string& property) { this->property = property; }
            std::string property;
    };
}

Java代码:

import org.bytedeco.javacpp.*;
import org.bytedeco.javacpp.annotation.*;

@Platform(include="LegacyLibrary.h")
@Namespace("LegacyLibrary")
public class LegacyLibrary {
    public static class LegacyClass extends Pointer {
        static { Loader.load(); }
        public LegacyClass() { allocate(); }
        private native void allocate();

        // to call the getter and setter functions 
        public native @StdString String get_property(); public native void set_property(String property);

        // to access the member variable directly
        public native @StdString String property();     public native void property(String property);
    }

    public static void main(String[] args) {
        // Pointer objects allocated in Java get deallocated once they become unreachable,
        // but C++ destructors can still be called in a timely fashion with Pointer.deallocate()
        LegacyClass l = new LegacyClass();
        l.set_property("Hello World!");
        System.out.println(l.property());
    }
}

eclipse中的我的文件夹结构

enter image description here

如果我在Eclipse中运行LegacyLibrary.java文件,我会收到以下错误

  

线程“main”中的异常java.lang.UnsatisfiedLinkError:java.library.path中没有jniLegacyLibrary     at java.lang.ClassLoader.loadLibrary(Unknown Source)     at java.lang.Runtime.loadLibrary0(Unknown Source)       在java.lang.System.loadLibrary(未知来源)       在org.bytedeco.javacpp.Loader.loadLibrary(Loader.java:550)       在org.bytedeco.javacpp.Loader.load(Loader.java:415)       在org.bytedeco.javacpp.Loader.load(Loader.java:358)       在LegacyLibrary $ LegacyClass。(LegacyLibrary.java:8)       在LegacyLibrary.main(LegacyLibrary.java:22)

我的代码出了什么问题?

0 个答案:

没有答案