Qt生成库文件

灰太狼 2022-12-27 11:24 207阅读 0赞

# Qt生成dll或so（含Liunx端与Windows端） #

[共享库生成][Link 1]

[Linux端编译及调用][Linux]

[Windows端编译及调用][Windows]

--------------------

# 共享库生成 #

注意：编译的时候要用lib，相当于列表，关联dll中的函数！

这里首先用Qt Creator 新建一个共享库

如下图：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxNzg0NDI3NjE_size_16_color_FFFFFF_t_70][]

生成后如下图目录结构：

![20190104234515568.png][]

源码如下：

test.h

1.  `#ifndef TEST_H`
2.  `#define TEST_H`
3.   
4.  `#include "test_global.h"`
5.   
6.  `class TESTSHARED_EXPORT Test`
7.  `{`
8.   
9.  `public:`
10. `Test();`
11.  
12. `int addNum(int num1, int num2);`
13. `int mulNum(int num1, int num2);`
14. `};`
15.  
16. `#endif // TEST_H`

test\_global.h

1.  `#ifndef TEST_GLOBAL_H`
2.  `#define TEST_GLOBAL_H`
3.   
4.  `#include <QtCore/qglobal.h>`
5.   
6.  `#if defined(TEST_LIBRARY)`
7.  `# define TESTSHARED_EXPORT Q_DECL_EXPORT`
8.  `#else`
9.  `# define TESTSHARED_EXPORT Q_DECL_IMPORT`
10. `#endif`
11.  
12. `#endif // TEST_GLOBAL_H`

test.cpp

1.  `#include "test.h"`
2.   
3.  `Test::Test()`
4.  `{`
5.  `}`
6.   
7.  `int Test::addNum(int num1, int num2)`
8.  `{`
9.  `return num1 + num2;`
10. `}`
11.  
12. `int Test::mulNum(int num1, int num2)`
13. `{`
14. `return num1 * num2;`
15. `}`

调用dll的代码目录结构如下：

![20190105101703778.png][]

关键源码如下：

main.cpp

1.  `#include <QCoreApplication>`
2.  `#include <test.h>`
3.  `#include <QDebug>`
4.   
5.  `int main(int argc, char *argv[])`
6.  `{`
7.  `QCoreApplication a(argc, argv);`
8.   
9.  `Test intTest;`
10. `qDebug() << "100 + 212 = " << intTest.addNum(100, 212);`
11. `qDebug() << "500 * 129 = " << intTest.mulNum(500, 129);`
12. `return a.exec();`
13. `}`

# Linux端编译及调用 #

把两个源码扔到装好Qt的Linux的机器上！先编译共享库源码，如下图所示（可以直接使用qmake编译）

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxNzg0NDI3NjE_size_16_color_FFFFFF_t_70 1][]

修改useTest端的pro文件如下：

1.  `QT += core gui`
2.   
3.  `greaterThan(QT_MAJOR_VERSION, 4): QT += widgets`
4.   
5.  `TARGET = useTest`
6.  `TEMPLATE = app`
7.   
8.   
9.  `DEFINES += QT_DEPRECATED_WARNINGS`
10.  
11.  
12. `SOURCES += main.cpp`
13.  
14.  
15. `unix:{`
16.  
17. `INCLUDEPATH += /root/QtDemo/Test`
18. `DESTDIR = /root/QtDemo/Test`
19. `DLLDESTDIR = /root/QtDemo/Test`
20. `LIBS += -L /root/QtDemo/Test -lTest`
21. `}`

编译以及运行：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxNzg0NDI3NjE_size_16_color_FFFFFF_t_70 2][]

运行截图如下：

![20190105102115652.png][]

#    Windows端编译及调用 #

这里使用Creator进行编写！编译构建Test

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxNzg0NDI3NjE_size_16_color_FFFFFF_t_70 3][]

结果如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxNzg0NDI3NjE_size_16_color_FFFFFF_t_70 4][]

把.h与.a（msvc里面的lib）以及dll打包好后，useTest配置好pro文件

如下：

1.  `QT += core`
2.  `QT -= gui`
3.   
4.  `CONFIG += c++11`
5.   
6.  `TARGET = useTest`
7.  `CONFIG += console`
8.  `CONFIG -= app_bundle`
9.   
10. `TEMPLATE = app`
11.  
12. `SOURCES += main.cpp`
13.  
14. `DEFINES += QT_DEPRECATED_WARNINGS`
15.  
16. `win32:{`
17.  
18. `INCLUDEPATH += E:/Qt2018/useTest/TestAPI`
19. `DESTDIR = E:/Qt2018/useTest/TestAPI`
20. `DLLDESTDIR = E:/Qt2018/useTest/TestAPI`
21. `LIBS += E:/Qt2018/useTest/TestAPI/libTest.a`
22. `}`

useTest运行截图如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxNzg0NDI3NjE_size_16_color_FFFFFF_t_70 5][]

[Link 1]: https://blog.csdn.net/qq78442761/article/details/85809172#t1
[Linux]: https://blog.csdn.net/qq78442761/article/details/85809172#t2
[Windows]: https://blog.csdn.net/qq78442761/article/details/85809172#t3
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxNzg0NDI3NjE_size_16_color_FFFFFF_t_70]: /images/20221120/e0387f3552ef496db67bdab48bb49724.png
[20190104234515568.png]: /images/20221120/24a4ac86c781473197af8ccf69fe43da.png
[20190105101703778.png]: https://img-blog.csdnimg.cn/20190105101703778.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxNzg0NDI3NjE_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20190104234943191.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxNzg0NDI3NjE=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxNzg0NDI3NjE_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20190105101819986.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxNzg0NDI3NjE=,size_16,color_FFFFFF,t_70
[20190105102115652.png]: https://img-blog.csdnimg.cn/20190105102115652.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxNzg0NDI3NjE_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20190105102306429.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxNzg0NDI3NjE=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxNzg0NDI3NjE_size_16_color_FFFFFF_t_70 4]: https://img-blog.csdnimg.cn/20190105102341180.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxNzg0NDI3NjE=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxNzg0NDI3NjE_size_16_color_FFFFFF_t_70 5]: https://img-blog.csdnimg.cn/20190105102513148.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxNzg0NDI3NjE=,size_16,color_FFFFFF,t_70