问题描述:毕业设计中用到了Luasql来Mysql数据库,Lua用的是用源码自己编译的,测试代码类似于下面:
-- load driver require "luasql.mysql" -- create environment object env = assert (luasql.mysql()) -- connect to data source con = assert (env:connect("database", "usr", "password", "192.168.xx.xxx", 3306)) -- reset our table res = con:execute"DROP TABLE people" --建立新表people res = assert (con:execute[[ CREATE TABLE people( name varchar(50), email varchar(50) ) ]]) -- add a few elements list = { { name="Jose das Couves", email="[email protected]", }, { name="Manoel Joaquim", email="[email protected]", }, { name="Maria das Dores", email="[email protected]", }, } for i, p in pairs (list) do --加入数据到people表 res = assert (con:execute(string.format([[ INSERT INTO people VALUES ('%s', '%s')]], p.name, p.email) )) end -- retrieve a cursor cur = assert (con:execute"SELECT name, email from people") --获取数据 -- print all rows row = cur:fetch ({}, "a") -- the rows will be indexed by field names --显示出来 while row do print(string.format("Name: %s, E-mail: %s", row.name, row.email)) row = cur:fetch (row, "a") -- reusing the table of results end -- close everything cur:close() con:close() env:close()
row = cur:fetch ({}, "a")
传入参数为 “a”的时候crash掉,百度了N久找不到原因。后来在一个CMUD的论坛上看了可能的问题,
解决方法:
Lua5.1 的DLL文件有两个,一个是 Lua5.1.DLL,一个是Lua51.DLL,
用源码编译Lua的时候,编译出来的有问题,
用官方编译出来的Lib以静态库的形式链接就没有问题了。