MySQL庫不鏈接

Question

我使用cmake構建我的項目文件。

這是我額外的鏈接庫：

kernel32.lib 
user32.lib 
gdi32.lib 
winspool.lib 
shell32.lib 
ole32.lib 
oleaut32.lib 
uuid.lib 
comdlg32.lib 
advapi32.lib 
..\boost\Debug\boost_lib_thread.lib 
..\boost\Debug\boost_lib_system.lib 
..\global\Debug\global.lib 
C:\Program Files (x86)\OpenSSL-Win32\lib\VC\libeay32MD.lib 
C:\Program Files (x86)\OpenSSL-Win32\lib\VC\ssleay32MDd.lib 
C:\Program Files (x86)\OpenSSL-Win32\lib\VC\libeay32MDd.lib 
C:\Program Files\MySQL\MySQL Server 5.5\lib\libmysql.lib 

我獲得以下錯誤，當我試圖編譯：

1>global.lib(DatabaseSystem.obj) : error LNK2019: unresolved external symbol _mysql_close@4 referenced in function "public: virtual __thiscall Database::~Database(void)" (??1Database@@UAE@XZ) 
1>global.lib(DatabaseSystem.obj) : error LNK2019: unresolved external symbol _mysql_error@4 referenced in function "public: bool __thiscall Database::InitDB(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,unsigned int,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,unsigned long,unsigned long)" (?InitDB@Database@@QAE_NV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@I000KK@Z) 
1>global.lib(DatabaseSystem.obj) : error LNK2019: unresolved external symbol _mysql_real_connect@32 referenced in function "public: bool __thiscall Database::InitDB(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,unsigned int,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,unsigned long,unsigned long)" (?InitDB@Database@@QAE_NV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@I000KK@Z) 
1>global.lib(DatabaseSystem.obj) : error LNK2019: unresolved external symbol _mysql_options@12 referenced in function "public: bool __thiscall Database::InitDB(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,unsigned int,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,unsigned long,unsigned long)" (?InitDB@Database@@QAE_NV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@I000KK@Z) 
1>global.lib(DatabaseSystem.obj) : error LNK2019: unresolved external symbol _mysql_init@4 referenced in function "public: bool __thiscall Database::InitDB(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,unsigned int,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,unsigned long,unsigned long)" (?InitDB@Database@@QAE_NV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@I000KK@Z) 
1>global.lib(DatabaseSystem.obj) : error LNK2019: unresolved external symbol _mysql_real_escape_string@16 referenced in function "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall Database::EscapeString(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)" (?EscapeString@Database@@QAE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@V23@@Z) 
1>global.lib(DatabaseSystem.obj) : error LNK2019: unresolved external symbol _mysql_errno@4 referenced in function "protected: bool __thiscall Database::_SendQuery(struct DatabaseConnection *,char const *,bool)" (?_SendQuery@Database@@IAE_NPAUDatabaseConnection@@PBD_N@Z) 
1>global.lib(DatabaseSystem.obj) : error LNK2019: unresolved external symbol _mysql_query@8 referenced in function "protected: bool __thiscall Database::_SendQuery(struct DatabaseConnection *,char const *,bool)" (?_SendQuery@Database@@IAE_NPAUDatabaseConnection@@PBD_N@Z) 
1>global.lib(DatabaseSystem.obj) : error LNK2019: unresolved external symbol _mysql_free_result@4 referenced in function "public: __thiscall QueryResult::~QueryResult(void)" (??1QueryResult@@QAE@XZ) 
1>global.lib(DatabaseSystem.obj) : error LNK2019: unresolved external symbol _mysql_fetch_row@4 referenced in function "public: bool __thiscall QueryResult::NextRow(void)" (?NextRow@QueryResult@@QAE_NXZ) 
1>global.lib(DatabaseSystem.obj) : error LNK2019: unresolved external symbol _mysql_field_count@4 referenced in function "protected: class QueryResult * __thiscall Database::_StoreQueryResult(struct DatabaseConnection *)" (?_StoreQueryResult@Database@@IAEPAVQueryResult@@PAUDatabaseConnection@@@Z) 
1>global.lib(DatabaseSystem.obj) : error LNK2019: unresolved external symbol _mysql_affected_rows@4 referenced in function "protected: class QueryResult * __thiscall Database::_StoreQueryResult(struct DatabaseConnection *)" (?_StoreQueryResult@Database@@IAEPAVQueryResult@@PAUDatabaseConnection@@@Z) 
1>global.lib(DatabaseSystem.obj) : error LNK2019: unresolved external symbol _mysql_store_result@4 referenced in function "protected: class QueryResult * __thiscall Database::_StoreQueryResult(struct DatabaseConnection *)" (?_StoreQueryResult@Database@@IAEPAVQueryResult@@PAUDatabaseConnection@@@Z) 
1>global.lib(DatabaseSystem.obj) : error LNK2019: unresolved external symbol _mysql_server_end@0 referenced in function "public: static void __cdecl Database::CleanupLibs(void)" (?CleanupLibs@Database@@SAXXZ) 
1>C:\Users\FreakX\Desktop\FrostCore2\build\source\authserver\Debug\AuthServer.exe : fatal error LNK1120: 14 unresolved externals 

Answer 1

嘗試除了增加libmysqlpp到的libmysql。這是C++ API，它來自您似乎嘗試使用的鏈接器錯誤。