Java调用Qt DLL

环境

Qt5.4.2
IntelliJ IDEA

jna-5.14.0.jar
jna-platform-5.14.0.jar

新建QT DLL

新建QT Library 项目

H文件：

extern "C" class QTDEMODLLSHARED_EXPORT QtDemoDLL
{
   

public:
    QtDemoDLL();
    ~QtDemoDLL();
public:
    double Add(double arg1,double arg2);

    void SetName(QString name);
    QString GetName();

private:
    QString strName;

};

extern "C" QTDEMODLLSHARED_EXPORT QtDemoDLL* GetQtDemoDLL();
extern "C" QTDEMODLLSHARED_EXPORT double Add(QtDemoDLL*p,double arg1,double arg2);
extern "C" QTDEMODLLSHARED_EXPORT void SetName(QtDemoDLL*p,char *name);
extern "C" QTDEMODLLSHARED_EXPORT char* GetName(QtDemoDLL*p);

CPP文件：

QtDemoDLL