win 需要先安裝luaforwindows
linux 需要安裝 luarocks 并 luarocks install luasql-mysql
require"luasql.mysql" --創建環境對象env=luasql.mysql() --連接數據庫conn=env:connect("數據庫名","用戶名","密碼","IP地址",端口) --設置數據庫的編碼格式conn:execute"SET NAMES GB2312" --執行數據庫操作cur=conn:execute("select * from role") row=cur:fetch({},"a") while row dovar=string.format("%d%s/n",row.id,row.name) print(var) row=cur:fetch(row,"a")end conn:close()--關閉數據庫連接env:close()--關閉數據庫環境
上面是個簡單的,我們再來看個稍微復雜些的例子
-- 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 --加入數據到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") --獲取數據 -- print all rows row = cur:fetch ({}, "a") -- the rows will be indexed by field names --顯示出來 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()
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