簡單的Lua 連接操作mysql數(shù)據(jù)庫的方法

require"luasql.mysql"
 
--創(chuàng)建環(huán)境對象
env=luasql.mysql()
 
--連接數(shù)據(jù)庫
conn=env:connect("數(shù)據(jù)庫名","用戶名","密碼","IP地址",端口)
 
--設(shè)置數(shù)據(jù)庫的編碼格式
conn:execute"SET NAMES GB2312"
 
--執(zhí)行數(shù)據(jù)庫操作
cur=conn:execute("select * from role")
 
row=cur:fetch({},"a")
 
while row do
var=string.format("%d%s\n",row.id,row.name)
 
print(var)
 
row=cur:fetch(row,"a")
end
 
conn:close()--關(guān)閉數(shù)據(jù)庫連接
env:close()--關(guān)閉數(shù)據(jù)庫環(huán)境

-- 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="jose@couves.com", }, 
{ name="Manoel Joaquim", email="manoel.joaquim@cafundo.com", }, 
{ name="Maria das Dores", email="maria@dores.com", }, 
} 
for i, p in pairs (list) do                      --加入數(shù)據(jù)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(shù)據(jù) 
-- 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()