网站留言模块,有关天猫网站建设的论文,做网站推广如何,推广网站建设产品介绍用qt连接MySQL需要共享库 libqsqlmysql.so的驱动#xff0c;路径在plugin/sqldrivers目录下#xff0c;乍看已经可用了#xff0c;其实不然。 用ldd命令分析一下#xff0c;libmysqlclient_r.so.16 not found ,后明显libmysqlclient_r.so.16 缺少另一个共享库#xf… 用qt连接MySQL需要共享库 libqsqlmysql.so的驱动路径在plugin/sqldrivers目录下乍看已经可用了其实不然。 用ldd命令分析一下libmysqlclient_r.so.16 not found ,后明显libmysqlclient_r.so.16 缺少另一个共享库他们是依赖关系解决了这个问题qt才能真的连接到mysql数据库。而我的/usr/lib64/下的共享库版本比较高是libmysqlclient.so.18想到了一个比较投机的想法ln创建符号链接然而这并没有什么卵用。 让我哭笑不得是QT5.5是我从官网下载的居然依赖的是低版本你们编译的时候能不能不偷懒啊估计他们直接从低版本拷贝的libqsqlmysql.so没办法了吗显然不是打开qt官网下载源码自己编译。下载过程略过非常好找 http://download.qt.io/official_releases/qt/5.4/5.4.2/submodules/ 暂时没有qt5.5的源码找到qtbase那个大概60M。MySql驱动的路径为qtbase/src/plugins/sqldrivers/mysql/。 qmakemake 然而这还没有完make的过程中又找不到动态库了 /usr/bin/ld: cannot find -lz
/usr/bin/ld: cannot find -lssl
/usr/bin/ld: cannot find -lcrypto 第一个是没有安装zlib-devel直接yum install zlib-devel搞定。 第二第三项找不到是没有道理的解决的方法/usr/lib64/中创建符号链接 ln -s libssl.so.1.0.1e libssl.soln -s libcrypto.so.1.0.1e libcrypto.so 再次make成功。当然这还没有完用新的libqsqlmysql.so去替换旧的这就全部完成了。 再次查看 [sqldrivers]ldd libqsqlmysql.so linux-vdso.so.1 (0x00007fff2d5fe000)libmysqlclient.so.18 /usr/lib64/mysql/libmysqlclient.so.18 (0x00007feb4ea24000)libz.so.1 /lib64/libz.so.1 (0x00007feb4e80d000)libcrypt.so.1 /lib64/libcrypt.so.1 (0x00007feb4e5d6000)libnsl.so.1 /lib64/libnsl.so.1 (0x00007feb4e3bd000)libssl.so.10 /lib64/libssl.so.10 (0x00007feb4e150000)libcrypto.so.10 /lib64/libcrypto.so.10 (0x00007feb4dd6b000)libQt5Sql.so.5 /home/eric/Qt5.5.0/5.5/gcc_64/lib/libQt5Sql.so.5 (0x00007feb4db2b000)libQt5Core.so.5 /home/eric/Qt5.5.0/5.5/gcc_64/lib/libQt5Core.so.5 (0x00007feb4d3e3000)libpthread.so.0 /lib64/libpthread.so.0 (0x00007feb4d1c7000)libstdc.so.6 /lib64/libstdc.so.6 (0x00007feb4cec0000)libm.so.6 /lib64/libm.so.6 (0x00007feb4cbbd000)libgcc_s.so.1 /lib64/libgcc_s.so.1 (0x00007feb4c9a7000)libc.so.6 /lib64/libc.so.6 (0x00007feb4c5e6000)libdl.so.2 /lib64/libdl.so.2 (0x00007feb4c3e1000)libfreebl3.so /lib64/libfreebl3.so (0x00007feb4c164000)libgssapi_krb5.so.2 /lib64/libgssapi_krb5.so.2 (0x00007feb4bf1a000)libkrb5.so.3 /lib64/libkrb5.so.3 (0x00007feb4bc39000)libcom_err.so.2 /lib64/libcom_err.so.2 (0x00007feb4ba35000)libk5crypto.so.3 /lib64/libk5crypto.so.3 (0x00007feb4b800000)libicui18n.so.54 /home/eric/Qt5.5.0/5.5/gcc_64/lib/libicui18n.so.54 (0x00007feb4b391000)libicuuc.so.54 /home/eric/Qt5.5.0/5.5/gcc_64/lib/libicuuc.so.54 (0x00007feb4afe3000)libicudata.so.54 /home/eric/Qt5.5.0/5.5/gcc_64/lib/libicudata.so.54 (0x00007feb495b9000)libgthread-2.0.so.0 /lib64/libgthread-2.0.so.0 (0x00007feb493b6000)librt.so.1 /lib64/librt.so.1 (0x00007feb491ae000)libglib-2.0.so.0 /lib64/libglib-2.0.so.0 (0x00007feb48e85000)/lib64/ld-linux-x86-64.so.2 (0x00007feb4f221000)libkrb5support.so.0 /lib64/libkrb5support.so.0 (0x00007feb48c76000)libkeyutils.so.1 /lib64/libkeyutils.so.1 (0x00007feb48a72000)libresolv.so.2 /lib64/libresolv.so.2 (0x00007feb48858000)libselinux.so.1 /lib64/libselinux.so.1 (0x00007feb48632000)libpcre.so.1 /lib64/libpcre.so.1 (0x00007feb483d1000)liblzma.so.5 /lib64/liblzma.so.5 (0x00007feb481ab000) 转载于:https://www.cnblogs.com/ittinybird/p/4604416.html
