参考
http://www.zhangjixuem.com.cn/2014/4/1/01037.html
https://github.com/bigplum/lua-resty-mongol
安装：
下载ngx_openresty-1.7.2.1.tar.gz
./configure --prefix=/data/nginx/openresty/resty --with-luajit
make
make install
修改nginx.conf
注意default_type text/plain;
否则浏览器触发是下载
charset utf-8,gbk;
否则可能会乱码
1. worker_processes 1;
2. events {
3. 1024;
4. }
5. http {
6. include mime.types;
7. 8,gbk;
8. # default_type application/octet-stream;
9. default_type text/plain;
10.
11. "/data/www/lua/?.lua;;";
12.
13. sendfile on;
14. 65;
15.
16.
17. server {
18. 80;
19. server_name localhost;
20.
21. lua_code_cache off;
22.
23. location /lua {
24. content_by_lua_file /data/www/lua/test.lua;
25. }
26. location /lua_mongo {
27. content_by_lua_file /data/www/lua/test_mongo.lua;
28. }
29. location /lua_get {
30. content_by_lua_file /data/www/lua/test_get.lua;
31. }
32.
33. location / {
34. root html;
35. index index.html index.htm;
36. }
37.
38.
39. #
40. 500 502 503 504 /50x.html;
41. location = /50x.html {
42. root html;
43. }
44.
45. }
46.
47. }
1. local redis = require "resty.redis"
2.
3. local cache = redis.new()
4.
5. local ok, err = cache.connect(cache, '127.0.0.1', '6379')
6.
7. cache:set_timeout(60000)
8.
9. if not ok then
10. "failed to connect:", err)
11. return
12. end
13.
14. res, err = cache:set("dog", "an aniaml")
15. if not ok then
16. "failed to set dog: ", err)
17. return
18. end
19.
20. ngx.say("set result: ", res)
21.
22. local res, err = cache:get("dog")
23. if not res then
24. "failed to get dog: ", err)
25. return
26. end
27.
28. if res == ngx.null then
29. "dog not found.")
30. return
31. end
32.
33. ngx.say("dog: ", res)
34.
35.
36. local ok, err = cache:close()
37.
38. if not ok then
39. "failed to close:", err)
40. return
41. end结果
1. [root@VM_192_107_centos lua]# !curl
2. curl http://localhost/lua
3. set result: OK
4. dog: an aniaml
5. [root@VM_192_107_centos lua]#
#---------------mongo的基本操作--------------
启动mongo
./mongod --dbpath=../data/db --logpath=../log/mongodb.log
1. show dbs
2.
3. use admin
4.
5. show collections
6.
7. db.startup_log.count()
8. db.startup_log.find()
9. db.startup_log.find().forEach(function(doc){print(tojson(doc));});
10.
11. u={name:"haoning",age:21}
12. db.haoning.insert(u)
13. db.haoning.insert({name:"ningning",age:10})
14.
15.
16. db.haoning.find({name:"haoning"});
17. db.haoning.find({age:18,name:"ning"});
18.
19. db.haoning.find().sort({age:1});
20. db.haoning.find().sort({age:-1});
21.
22. db.haoning.find().limit(2);
23.
24. db.haoning.find().skip(2).limit(2);
25.
26. db.haoning.find({age:{$gt:9,$lt:20},name:"ning"});
27. db.haoning.find({age:{$gt:9,$lt:20}});
28. $gte $lte $ne
29. db.haoning.find({age:{$in:[10,18]}});
30. db.haoning.find({$or:[{age:10},{age:21}]});
31.
32. db.haoning.update({name:'ning'},{$set:{age:100,sex:0}});
33.
34.
35. db.haoning.update({name:'haohao'},{$inc:{age:10}},false,true);
36. db.haoning.findOne({name:"ningning"});
37. id=db.haoning.findOne({name:"ningning"})._id
38. db.haoning.remove(id);
39.
40.
41. db.haoning.ensureIndex({name:1})
42. db.haoning.ensureIndex({name:1},{backgrand:true})
43. db.haoning.ensureIndex({name:1},{unique:true})
44. db.haoning.ensureIndex({created_at:-1})
45. db.haoning.ensureIndex({name:1,created_at:-1})
46.
47. db.haoning.distinct("name");mongo的安装
git clone https://github.com/bigplum/lua-resty-mongol.git
make PREFIX=/data/nginx/openresty/resty install
/data/nginx/openresty/resty 为已经安装的resty的安装路径
会在/data/nginx/openresty/resty/lualib/resty
下面添加mongol的一些lua脚本
mongo的test的lua脚本：
参考
http://www.zhangjixuem.com.cn/2014/4/1/01037.html
1. local mongo = require "resty.mongol"
2. local conn = mongo:new()
3. conn:set_timeout(1000)
4. local ok, err = conn:connect("127.0.0.1",27017)
5. if not ok then
6. "connect failed: "..err)
7. end
8. local db=conn:new_db_handle("test")
9. local col = db:get_col("test")
10. local r = col:find_one({name="dog"},{_id=0})
11. for k,v in pairs(r) do
12. ": "..v)
13. end
mongo的测试
1. [root@VM_192_107_centos lua]# mongo
2. MongoDB shell version: 2.6.6
3. connecting to: test
4. > use test
5. switched to db test
6. > db.test.insert({name:"dog"})
7. WriteResult({ "nInserted" : 1 })
8. > ^C
9. bye
10. [root@VM_192_107_centos lua]# ^C
11. [root@VM_192_107_centos lua]# !curl
12. curl http://localhost/lua
13. set result: OK
14. dog: an aniaml
15. [root@VM_192_107_centos lua]# curl http://localhost/lua_mongo
16. name: dog
17. [root@VM_192_107_centos lua]#另外，nginx向lua传值
1. local request_method = ngx.var.request_method
2. local args = nil
3. local param = nil
4. local param2 = nil
5. if "GET" == request_method then
6. args = ngx.req.get_uri_args()
7. elseif "POST" == request_method then
8. ngx.req.read_body()
9. args = ngx.req.get_post_args()
10. end
11. param = args["p"]
12. ngx.say("request: ", param)
配置文件：
1. location /lua_get {
2. content_by_lua_file /data/www/lua/test_get.lua;
3. }
测试
1. [root@VM_192_107_centos lua]# !curl
2. curl http://localhost/lua_mongo
3. name: dog
4. [root@VM_192_107_centos lua]#
[root@VM_192_107_centos sbin]# curl -d "p='bbb'" http://127.0.0.1/lua_get?
post
request: 'bbb'
[root@VM_192_107_centos sbin]#
参考http://www.server110.com/nginx/201310/2800.html
#-----------------使用request的 data_body,及json的参数--------
[root@VM_192_107_centos lualib]# ls
cjson.so rds redis resty
[root@VM_192_107_centos lualib]# pwd
/data/nginx/openresty/resty/lualib
看下面有个cjson.so
就是可以require cjson了哈
1. local json = require("cjson")
2. local request_method = ngx.var.request_method
3. local args = nil
4. local param = nil
5. local param2 = nil
6. --获取参数的值
7. if "GET" == request_method then
8. args = ngx.req.get_uri_args()
9. elseif "POST" == request_method then
10. ngx.req.read_body()
11. args = ngx.req.get_post_args()
12. end
13. param = args["param"]
14. param2 = args["param2"]
15. --升级版(能处理content-type=multipart/form-data的表单)：
16. local function explode ( _str,seperator )
17. 0, {}
18. for st, sp in function() return string.find( _str, seperator, pos, true ) end do
19. 1 ) )
20. 1
21. end
22. table.insert( arr, string.sub( _str, pos ) )
23. return arr
24. end
25. local args = {}
26. local file_args = {}
27. local is_have_file_param = false
28. local function init_form_args()
29. local receive_headers = ngx.req.get_headers()
30. local request_method = ngx.var.request_method
31. if "GET" == request_method then
32. args = ngx.req.get_uri_args()
33. "request get: ", args)
34. "POST" == request_method then
35. "request: post ")
36. ngx.req.read_body()
37. "content-type"],1,33))
38. if string.sub(receive_headers["content-type"],1,20) == "multipart/form-data;" then--判断是否是multipart/form-data类型的表单
39. if string.sub(receive_headers["content-type"],1,33) == "application/x-www-form-urlencoded" then--判断是否是multipart/form-data类型的表单
40. "request: post 1")
41. true
42. "content-type"]
43. body_data = ngx.req.get_body_data()--body_data可是符合http协议的请求体，不是普通的字符串
44. "body_data:",body_data)
45. value = json.encode(body_data)
46. ngx.say(value)
47. a = json.decode(value)
48. 'aa'])
49. --请求体的size大于nginx配置里的client_body_buffer_size，则会导致请求体被缓冲到磁盘临时文件里，client_body_buffer_size默认是8k或者16k
50. if not body_data then
51. local datafile = ngx.req.get_body_file()
52. if not datafile then
53. 1
54. "no request body found"
55. else
56. "r")
57. if not fh then
58. 2
59. "failed to open " .. tostring(datafile) .. "for reading: " .. tostring(err)
60. else
61. "set")
62. "*a")
63. fh:close()
64. if body_data == "" then
65. 3
66. "request body is empty"
67. end
68. end
69. end
70. end
71. local new_body_data = {}
72. --确保取到请求体的数据
73. if not error_code then
74. "--" .. string.sub(receive_headers["content-type"],31)
75. local body_data_table = explode(tostring(body_data),boundary)
76. 1)
77. local last_string = table.remove(body_data_table)
78. for i,v in ipairs(body_data_table) do
79. 'Content%-Disposition: form%-data; name="(.+)"; filename="(.*)"')
80. if not start_pos then--普通参数
81. "\r\n\r\n")
82. 1],41,-2)
83. 2],1,-3)
84. args[temp_param_name] = temp_param_value
85. else--文件类型的参数，capture是参数名称，capture2是文件名
86. file_args[capture] = capture2
87. table.insert(new_body_data,v)
88. end
89. end
90. 1,first_string)
91. table.insert(new_body_data,last_string)
92. --去掉app_key,app_secret等几个参数，把业务级别的参数传给内部的API
93. body_data = table.concat(new_body_data,boundary)--body_data可是符合http协议的请求体，不是普通的字符串
94. end
95. else
96. "request: post else")
97. args = ngx.req.get_post_args()
98. "request: args ",args['p'])
99. end
100. end
101. end
102. init_form_args()
结果
1. [root@VM_192_107_centos lualib]# !curl
2. curl -d "{aa:'cc'}" http://localhost/lua_get_post?p=cc
3. request: post
4. application/x-www-form-urlencoded
5. request: post 1
6. body_data:{aa:'cc'}
7. "{aa:'cc'}"
8. nil
9. [root@VM_192_107_centos lualib]#结合mongo加cjson的例子
1. [root@VM_192_107_centos lua]# cat getChannels.lua
2. local mongo = require "resty.mongol"
3. local json = require("cjson")
4. local conn = mongo:new()
5. conn:set_timeout(1000)
6. local ok, err = conn:connect("127.0.0.1",27017)
7. if not ok then
8. "connect failed: "..err)
9. end
10. local db=conn:new_db_handle("meedo-service")
11. local col = db:get_col("channels")
12. local r = col:find_one({_id=1})
13. value = json.encode(r)
14. ngx.say(value)
