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luasql = require "luasql.mysql"
--创建环境对象 env = luasql.mysql()
--连接数据库 conn = env:connect("waterlot","root","ctu96jsj","127.0.0.1",3306)
--设置数据库的编码格式 conn:execute"SET NAMES UTF8"
--执行数据库操作 cur = conn:execute("select * from hts_company")
row = cur:fetch({},"a")
--文件对象的创建 file = io.open("hts_company.txt","w+");
while row do var = string.format("%d %s\n", row.id, row.name)
print(var) file:write(var) row = cur:fetch(row,"a")
end
file:close() --关闭文件对象 conn:close() --关闭数据库连接 env:close() --关闭数据库环境
2020-07-14 14:31:02.319 [error] Lua Hook: Failed to load lua script "/var/lib/emqx/scripts/test_mysql.lua" due to error {{lua_error, {no_module, <<"luasql.mysql">>, <<"'./luasql/mysql.lua' './luasql/mysql/init.lua' ">>}, {luerl, {array, 13, 100, undefined, {{{table, {array, 0, 10, nil, 10}, {{{{empty, <<"_G">>, {tref, 0}, empty, <<"_VERSION">>, <<"Lua 5.2">>, empty}, <<"assert">>, {function, #Fun<luerl_lib_basic.0.131962688>}, {empty, <<"bit32">>, {tref, 5}, empty}, <<"collectgarbage">>, {function, #Fun<luerl_lib_basic.1.131962688>}, {empty, <<"debug">>
Remark: other self .lua aslo not load by require, sample require("NumConvert")
2020-07-14 14:31:02.316 [error] Lua Hook: Failed to load lua script "/var/lib/emqx/scripts/mcu_api.lua" due to error {{lua_error, {no_module, <<"NumConvert">>, <<"'./NumConvert.lua' './NumConvert/init.lua' ">>}, {luerl, {array, 13, 100, undefined, {{{table, {array, 0, 10, nil, 10},
The text was updated successfully, but these errors were encountered:
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luasql = require "luasql.mysql"
--创建环境对象
env = luasql.mysql()
--连接数据库
conn = env:connect("waterlot","root","ctu96jsj","127.0.0.1",3306)
--设置数据库的编码格式
conn:execute"SET NAMES UTF8"
--执行数据库操作
cur = conn:execute("select * from hts_company")
row = cur:fetch({},"a")
--文件对象的创建
file = io.open("hts_company.txt","w+");
while row do
var = string.format("%d %s\n", row.id, row.name)
end
file:close() --关闭文件对象
conn:close() --关闭数据库连接
env:close() --关闭数据库环境
2020-07-14 14:31:02.319 [error] Lua Hook: Failed to load lua script "/var/lib/emqx/scripts/test_mysql.lua" due to error {{lua_error,
{no_module,
<<"luasql.mysql">>,
<<"'./luasql/mysql.lua' './luasql/mysql/init.lua' ">>},
{luerl,
{array,
13,
100,
undefined,
{{{table,
{array,
0,
10,
nil,
10},
{{{{empty,
<<"_G">>,
{tref,
0},
empty,
<<"_VERSION">>,
<<"Lua 5.2">>,
empty},
<<"assert">>,
{function,
#Fun<luerl_lib_basic.0.131962688>},
{empty,
<<"bit32">>,
{tref,
5},
empty},
<<"collectgarbage">>,
{function,
#Fun<luerl_lib_basic.1.131962688>},
{empty,
<<"debug">>
Remark: other self .lua aslo not load by require, sample require("NumConvert")
2020-07-14 14:31:02.316 [error] Lua Hook: Failed to load lua script "/var/lib/emqx/scripts/mcu_api.lua" due to error {{lua_error,
{no_module,
<<"NumConvert">>,
<<"'./NumConvert.lua' './NumConvert/init.lua' ">>},
{luerl,
{array,
13,
100,
undefined,
{{{table,
{array,
0,
10,
nil,
10},
The text was updated successfully, but these errors were encountered: