進入下面的目錄 ，查看 ??libqsqlmysql 明明存在，可還是報錯，再看看 libqsqlmysql.so 的依賴

kyle@xianglou:~/Qt5.6.2/Tools/QtCreator/lib/Qt/plugins/sqldrivers$ ldd libqsqlmysql.so

linux-vdso.so.1 => ?(0x00007ffec56f4000)

libmysqlclient_r.so.16 => not found

libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f7c971ac000)

libcrypt.so.1 => /lib/x86_64-linux-gnu/libcrypt.so.1 (0x00007f7c96f74000)

libnsl.so.1 => /lib/x86_64-linux-gnu/libnsl.so.1 (0x00007f7c96d5b000)

libssl.so.10 => not found

libcrypto.so.10 => not found

libQt5Sql.so.5 => /home/kyle/Qt5.6.2/Tools/QtCreator/lib/Qt/plugins/sqldrivers/./../../lib/libQt5Sql.so.5 (0x00007f7c96b17000)

libQt5Core.so.5 => /home/kyle/Qt5.6.2/Tools/QtCreator/lib/Qt/plugins/sqldrivers/./../../lib/libQt5Core.so.5 (0x00007f7c96403000)

libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f7c961e6000)

libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f7c95e64000)

libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f7c95b5b000)

libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f7c95945000)

libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f7c9557b000)

libicui18n.so.56 => /home/kyle/Qt5.6.2/Tools/QtCreator/lib/Qt/plugins/sqldrivers/./../../lib/libicui18n.so.56 (0x00007f7c950e1000)

libicuuc.so.56 => /home/kyle/Qt5.6.2/Tools/QtCreator/lib/Qt/plugins/sqldrivers/./../../lib/libicuuc.so.56 (0x00007f7c94d29000)

libicudata.so.56 => /home/kyle/Qt5.6.2/Tools/QtCreator/lib/Qt/plugins/sqldrivers/./../../lib/libicudata.so.56 (0x00007f7c93346000)

libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f7c93142000)

libgthread-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgthread-2.0.so.0 (0x00007f7c92f40000)

librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f7c92d38000)

libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f7c92a27000)

/lib64/ld-linux-x86-64.so.2 (0x00007f7c975d8000)

libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f7c927b7000)

顯示 ：

libmysqlclient_r.so.16 => not found

libssl.so.10 => not found

libcrypto.so.10 => not found

這三個庫依賴找不到：

解決方案

1、下載 libsqlclient_r.so.16文件后，將該文件移動到 /usr/lib/i386-linux-gnu。

2、對另外兩個庫做軟鏈接

sudo ln -s /usr/lib/x86_64-linux-gnu/libcrypto.so /usr/lib/x86_64-linux-gnu/libcrypto.so.10

sudo ln -s /usr/lib/x86_64-linux-gnu/libssl.so /usr/lib/x86_64-linux-gnu/libssl.so.10

再次查看依賴

kyle@xianglou:~/Qt5.6.2/Tools/QtCreator/lib/Qt/plugins/sqldrivers$ ldd libqsqlmysql.so

./libqsqlmysql.so: /usr/lib/x86_64-linux-gnu/libmysqlclient_r.so.16: no version information available (required by ./libqsqlmysql.so)

linux-vdso.so.1 => ?(0x00007ffe0b75d000)

libmysqlclient_r.so.16 => /usr/lib/x86_64-linux-gnu/libmysqlclient_r.so.16 (0x00007f0285c44000)

libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f0285a2a000)

libcrypt.so.1 => /lib/x86_64-linux-gnu/libcrypt.so.1 (0x00007f02857f2000)

libnsl.so.1 => /lib/x86_64-linux-gnu/libnsl.so.1 (0x00007f02855d9000)

libssl.so.10 => /usr/lib/x86_64-linux-gnu/libssl.so.10 (0x00007f0285370000)

libcrypto.so.10 => /usr/lib/x86_64-linux-gnu/libcrypto.so.10 (0x00007f0284f2c000)

libQt5Sql.so.5 => /home/kyle/Qt5.6.2/Tools/QtCreator/lib/Qt/plugins/sqldrivers/./../../lib/libQt5Sql.so.5 (0x00007f0284ce8000)

libQt5Core.so.5 => /home/kyle/Qt5.6.2/Tools/QtCreator/lib/Qt/plugins/sqldrivers/./../../lib/libQt5Core.so.5 (0x00007f02845d4000)

libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f02843b7000)

libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f0284035000)

libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f0283d2c000)

libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f0283b16000)

libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f028374c000)

libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f0283548000)

libicui18n.so.56 => /home/kyle/Qt5.6.2/Tools/QtCreator/lib/Qt/plugins/sqldrivers/./../../lib/libicui18n.so.56 (0x00007f02830ae000)

libicuuc.so.56 => /home/kyle/Qt5.6.2/Tools/QtCreator/lib/Qt/plugins/sqldrivers/./../../lib/libicuuc.so.56 (0x00007f0282cf6000)

libicudata.so.56 => /home/kyle/Qt5.6.2/Tools/QtCreator/lib/Qt/plugins/sqldrivers/./../../lib/libicudata.so.56 (0x00007f0281313000)

libgthread-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgthread-2.0.so.0 (0x00007f0281111000)

librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f0280f09000)

libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f0280bf8000)

/lib64/ld-linux-x86-64.so.2 (0x00007f028639b000)

libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f0280988000)

已經(jīng) 可以 了，編譯QT項目已經(jīng)顯示 mysql 鏈接成功了。

總結

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