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本篇文章为大家展示了如何在nginx lua中使用kafka，内容简明扼要并且容易理解，绝对能使你眼前一亮，通过这篇文章的详细介绍希望你能有所收获。
第一步：进入opresty目录
[root@node03 openresty]# cd /export/servers/openresty/ [root@node03 openresty]# ll total 356 drwxr-xr-x 2 root root 4096 Jul 26 11:33 bin drwxrwxr-x 44 1000 1000 4096 Jul 26 11:31 build drwxrwxr-x 43 1000 1000 4096 Nov 13 2017 bundle -rwxrwxr-x 1 1000 1000 45908 Nov 13 2017 configure -rw-rw-r-- 1 1000 1000 22924 Nov 13 2017 COPYRIGHT drwxr-xr-x 6 root root 4096 Jul 26 11:33 luajit drwxr-xr-x 6 root root 4096 Aug 1 08:14 lualib -rw-r--r-- 1 root root 5413 Jul 26 11:32 Makefile drwxr-xr-x 11 root root 4096 Jul 26 11:35 nginx drwxrwxr-x 2 1000 1000 4096 Nov 13 2017 patches drwxr-xr-x 44 root root 4096 Jul 26 11:33 pod -rw-rw-r-- 1 1000 1000 3689 Nov 13 2017 README.markdown -rw-rw-r-- 1 1000 1000 8690 Nov 13 2017 README-win32.txt -rw-r--r-- 1 root root 218352 Jul 26 11:33 resty.index drwxr-xr-x 5 root root 4096 Jul 26 11:33 site drwxr-xr-x 2 root root 4096 Aug 1 10:54 testlua drwxrwxr-x 2 1000 1000 4096 Nov 13 2017 util [root@node03 openresty]#
说明：接下来我们关注两个目录 lualib 和 nginx
1.lualib: 是存放opresty所需要的集成软件包的
2.nginx： 是nginx服务目录
接下来，我们进入lualib目录一看究竟：
[root@node03 openresty]# cd lualib/ [root@node03 lualib]# ll total 116 -rwxr-xr-x 1 root root 101809 Jul 26 11:33 cjson.so drwxr-xr-x 3 root root 4096 Jul 26 11:33 ngx drwxr-xr-x 2 root root 4096 Jul 26 11:33 rds drwxr-xr-x 2 root root 4096 Jul 26 11:33 redis drwxr-xr-x 9 root root 4096 Aug 1 10:34 resty
这里我们看到了redis和ngx集成软件包，说明我们可以之间使用nginx和redis而无需导入任何依赖包！！！！
下面看看resty里面有些说明呢？？？？
[root@node03 lualib]# cd resty/ [root@node03 resty]# ll total 152 -rw-r--r-- 1 root root 6409 Jul 26 11:33 aes.lua drwxr-xr-x 2 root root 4096 Jul 26 11:33 core -rw-r--r-- 1 root root 596 Jul 26 11:33 core.lua drwxr-xr-x 2 root root 4096 Jul 26 11:33 dns drwxr-xr-x 2 root root 4096 Aug 1 10:42 kafka #这是我们自己导入的 drwxr-xr-x 2 root root 4096 Jul 26 11:33 limit -rw-r--r-- 1 root root 4616 Jul 26 11:33 lock.lua drwxr-xr-x 2 root root 4096 Jul 26 11:33 lrucache -rw-r--r-- 1 root root 4620 Jul 26 11:33 lrucache.lua -rw-r--r-- 1 root root 1211 Jul 26 11:33 md5.lua -rw-r--r-- 1 root root 14544 Jul 26 11:33 memcached.lua -rw-r--r-- 1 root root 21577 Jul 26 11:33 mysql.lua -rw-r--r-- 1 root root 616 Jul 26 11:33 random.lua -rw-r--r-- 1 root root 9227 Jul 26 11:33 redis.lua -rw-r--r-- 1 root root 1192 Jul 26 11:33 sha1.lua -rw-r--r-- 1 root root 1045 Jul 26 11:33 sha224.lua -rw-r--r-- 1 root root 1221 Jul 26 11:33 sha256.lua -rw-r--r-- 1 root root 1045 Jul 26 11:33 sha384.lua -rw-r--r-- 1 root root 1359 Jul 26 11:33 sha512.lua -rw-r--r-- 1 root root 236 Jul 26 11:33 sha.lua -rw-r--r-- 1 root root 698 Jul 26 11:33 string.lua -rw-r--r-- 1 root root 5178 Jul 26 11:33 upload.lua drwxr-xr-x 2 root root 4096 Jul 26 11:33 upstream drwxr-xr-x 2 root root 406 Jul 26 11:33 websocket
这里我们看到了熟悉的mysql.lua和redis.lua，好了其他的先不要管
注意：这里的 kafka 这个包是没有的,说明opnresty么有集成kafka。此处我已经提前导入啦kafka集成包
我们看看kafka里面多有哪些包：
[root@node03 resty]# cd kafka [root@node03 kafka]# ll total 48 -rw-r--r-- 1 root root 1369 Aug 1 10:42 broker.lua -rw-r--r-- 1 root root 5537 Aug 1 10:42 client.lua -rw-r--r-- 1 root root 710 Aug 1 10:42 errors.lua -rw-r--r-- 1 root root 10718 Aug 1 10:42 producer.lua -rw-r--r-- 1 root root 4072 Aug 1 10:42 request.lua -rw-r--r-- 1 root root 2118 Aug 1 10:42 response.lua -rw-r--r-- 1 root root 1494 Aug 1 10:42 ringbuffer.lua -rw-r--r-- 1 root root 4845 Aug 1 10:42 sendbuffer.lua
附上 kafka 集成包：kafka_jb51.rar
第二步：创建kafka测试lua文件
1.退回到openresty
[root@node03 kafka]# cd /export/servers/openresty/
2.创建测试文件
[root@node03 openresty]# mkdir -r testlua #这里文件名自己取，文件位置自己定，但必须找得到
这里文件名自己取，文件位置自己定，但必须找得到!!!!!!!!!!!下面会用到!!!!!!!!!!
3.进入刚刚创建的文件夹并创建kafkalua.lua脚本文件
创建文件：vim kafkalua.lua或者touch kafkalua.lua
[root@node03 openresty]# cd testlua/ [root@node03 testlua]# ll total 8 -rw-r--r-- 1 root root 3288 Aug 1 10:54 kafkalua.lua
kafkalua.lua:
--测试语句可以不用
ngx.say('hello kafka file configuration successful!!!!!!')
--数据采集阈值限制，如果lua采集超过阈值，则不采集
local DEFAULT_THRESHOLD = 100000
-- kafka分区数
local PARTITION_NUM = 6
-- kafka主题名称
local TOPIC = 'B2CDATA_COLLECTION1'
-- 轮询器共享变量KEY值
local POLLING_KEY = "POLLING_KEY"
-- kafka集群(定义kafka broker地址，ip需要和kafka的host.name配置一致)
local function partitioner(key, num, correlation_id)
return tonumber(key)
end
--kafka broker列表
local BROKER_LIST = {{host="192.168.52.100",port=9092},{host="192.168.52.110",port=9092},{host="192.168.52.120",port=9092}}
--kafka参数，
local CONNECT_PARAMS = { producer_type = "async", socket_timeout = 30000, flush_time = 10000, request_timeout = 20000, partitioner = partitioner }
-- 共享内存计数器，用于kafka轮询使用
local shared_data = ngx.shared.shared_data
local pollingVal = shared_data:get(POLLING_KEY)
if not pollingVal then
pollingVal = 1
shared_data:set(POLLING_KEY, pollingVal)
end
--获取每一条消息的计数器，对PARTITION_NUM取余数，均衡分区
local partitions = '' .. (tonumber(pollingVal) % PARTITION_NUM)
shared_data:incr(POLLING_KEY, 1)
-- 并发控制
local isGone = true
--获取ngx.var.connections_active进行过载保护，即如果当前活跃连接数超过阈值进行限流保护
if tonumber(ngx.var.connections_active) > tonumber(DEFAULT_THRESHOLD) then
isGone = false
end
-- 数据采集
if isGone then
local time_local = ngx.var.time_local
if time_local == nil then
time_local = ""
end
local request = ngx.var.request
if request == nil then
request = ""
end
local request_method = ngx.var.request_method
if request_method == nil then
request_method = ""
end
local content_type = ngx.var.content_type
if content_type == nil then
content_type = ""
end
ngx.req.read_body()
local request_body = ngx.var.request_body
if request_body == nil then
request_body = ""
end
local http_referer = ngx.var.http_referer
if http_referer == nil then
http_referer = ""
end
local remote_addr = ngx.var.remote_addr
if remote_addr == nil then
remote_addr = ""
end
local http_user_agent = ngx.var.http_user_agent
if http_user_agent == nil then
http_user_agent = ""
end
local time_iso8601 = ngx.var.time_iso8601
if time_iso8601 == nil then
time_iso8601 = ""
end
local server_addr = ngx.var.server_addr
if server_addr == nil then
server_addr = ""
end
local http_cookie = ngx.var.http_cookie
if http_cookie == nil then
http_cookie = ""
end
--封装数据
local message = time_local .."#CS#".. request .."#CS#".. request_method .."#CS#".. content_type .."#CS#".. request_body .."#CS#".. http_referer .."#CS#".. remote_addr .."#CS#".. http_user_agent .."#CS#".. time_iso8601 .."#CS#".. server_addr .."#CS#".. http_cookie;
--引入kafka的producer
local producer = require "resty.kafka.producer"
--创建producer
local bp = producer:new(BROKER_LIST, CONNECT_PARAMS)
--发送数据
local ok, err = bp:send(TOPIC, partitions, message)
--打印错误日志
if not ok then
ngx.log(ngx.ERR, "kafka send err:", err)
return
end
end第三步：修改nginx配置文件nginx.conf
1.进入ngin/conf目录
[root@node03 openresty]# cd /export/servers/openresty/nginx/conf/ [root@node03 conf]# ll total 76 -rw-r--r-- 1 root root 1077 Jul 26 11:33 fastcgi.conf -rw-r--r-- 1 root root 1077 Jul 26 11:33 fastcgi.conf.default -rw-r--r-- 1 root root 1007 Jul 26 11:33 fastcgi_params -rw-r--r-- 1 root root 1007 Jul 26 11:33 fastcgi_params.default -rw-r--r-- 1 root root 2837 Jul 26 11:33 koi-utf -rw-r--r-- 1 root root 2223 Jul 26 11:33 koi-win -rw-r--r-- 1 root root 5170 Jul 26 11:33 mime.types -rw-r--r-- 1 root root 5170 Jul 26 11:33 mime.types.default -rw-r--r-- 1 root root 3191 Aug 1 10:52 nginx.conf -rw-r--r-- 1 root root 2656 Jul 26 11:33 nginx.conf.default -rw-r--r-- 1 root root 636 Jul 26 11:33 scgi_params -rw-r--r-- 1 root root 636 Jul 26 11:33 scgi_params.default -rw-r--r-- 1 root root 664 Jul 26 11:33 uwsgi_params -rw-r--r-- 1 root root 664 Jul 26 11:33 uwsgi_params.default -rw-r--r-- 1 root root 3610 Jul 26 11:33 win-utf
2.修改nginx.conf
[root@node03 conf]# vim nginx.conf
#1.说明找到第一个server
#2.在server上面添加两行代码如下
#3.在server里面添加kafka相关的代码如下
#------------------添加的代码---------------------------------------
#开启共享字典，设置内存大小为10M，供每个nginx的线程消费
lua_shared_dict shared_data 10m;
#配置本地域名解析
resolver 127.0.0.1;
#------------------添加的代码---------------------------------------
server {
listen 80;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root html;
index index.html index.htm;
}
#------------------添加的代码---------------------------------------
location /kafkalua { #这里的kafkalua就是工程名字，不加默认为空
#开启nginx监控
stub_status on;
#加载lua文件
default_type text/html;
#指定kafka的lua文件位置，就是我们刚才创建的kafkalua.lua（前面已经强调要记住的！！！！）
content_by_lua_file /export/servers/openresty/testlua/kafkalua.lua;
}
#------------------添加的代码---------------------------------------
}说明：location /kafkalua{...}这里的kafkalua是工程名，可以随意取也可以不取，但是必须要记住！！！
看到我们上面配置了两个location，第一个为location /{...}第二个为location /kafkalua{...}那么他们有什么区别呢？？？先向下看，迷雾将会慢慢揭开。
第四步：启动nginx
1.进入nginx/sbin
[root@node03 sbin]# cd /export/servers/openresty/nginx/sbin/ [root@node03 sbin]# ll total 16356 -rwxr-xr-x 1 root root 16745834 Jul 26 11:33 nginx
2.测试配置文件是否正确
[root@node03 sbin]# nginx -t nginx: the configuration file /export/servers/openresty/nginx/conf/nginx.conf syntax is ok nginx: configuration file /export/servers/openresty/nginx/conf/nginx.conf test is successful #看到已经成功啦
3.启动nginx
[root@node03 sbin]# nginx #不显示任何东西一般是成功啦
4.查看nginx是否启动成功
[root@node03 sbin]# ps -ef | grep nginx root 3730 1 0 09:24 ? 00:00:00 nginx: master process nginx nobody 3731 3730 0 09:24 ? 00:00:20 nginx: worker process is shutting down nobody 5766 3730 0 12:17 ? 00:00:00 nginx: worker process root 5824 3708 0 12:24 pts/1 00:00:00 grep nginx#看到有两个nginx进程，表示成功le
5.浏览器访问nginx
在浏览器输入：node03/kafkalua
说明：如何么有配置hosts则输入openresty所在设备的地址如：192.168.52.120/kafkalua
在浏览器输入：node03/或者 192.168.52.120/
再在浏览器输入：node03:80/kafkalua 和 node03:80/试试 搬来nginx.conf来看看：
node03:80/kafkalua 这里的nide03是服务器的别名或者之间写文服务器地址，80是【listen 80;】配置的监听端口，80端口可以省略不写，如果这写成【listen 8088;】那么浏览器需输入 node03:8088/kafkalua （这里不能省略8088），kafkalua是工程名。
server {
listen 80;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root html;
index index.html index.htm;
}
#------------------添加的代码---------------------------------------
location /kafkalua { #这里的kafkalua就是工程名字，不加默认为空
#开启nginx监控
stub_status on;
#加载lua文件
default_type text/html;
#指定kafka的lua文件位置，就是我们刚才创建的kafkalua.lua（前面已经强调要记住的！！！！）
content_by_lua_file /export/servers/openresty/testlua/kafkalua.lua;
}第五步：创建测试爬虫程序
1.创建maven工程导入依赖
<dependencies> <dependency> <groupId>org.jsoup</groupId> <artifactId>jsoup</artifactId> <version>1.11.3</version> </dependency> <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.5.4</version> </dependency> </dependencies>
2.伪爬虫程序
public class SpiderGoAirCN {
private static String basePath = "http://node03/kafkalua";
public static void main(String[] args) throws Exception {
for (int i = 0; i < 50000; i++) {
// 请求查询信息
spiderQueryao();
// 请求html
spiderHtml();
// 请求js
spiderJs();
// 请求css
spiderCss();
// 请求png
spiderPng();
// 请求jpg
spiderJpg();
Thread.sleep(100);
}
}
/**
*
* @throws Exception
*/
public static void spiderQueryao() throws Exception {
// 1.指定目标网站 ^.*/B2C40/query/jaxb/direct/query.ao.*$
String url = basePath + "/B2C40/query/jaxb/direct/query.ao";
// 2.发起请求
HttpPost httpPost = new HttpPost(url);
// 3. 设置请求参数
httpPost.setHeader("Time-Local", getLocalDateTime());
httpPost.setHeader("Requst",
"POST /B2C40/query/jaxb/direct/query.ao HTTP/1.1");
httpPost.setHeader("Request Method", "POST");
httpPost.setHeader("Content-Type",
"application/x-www-form-urlencoded; charset=UTF-8");
httpPost.setHeader(
"Referer",
"http://xml.xxxx.com/B2C40/modules/bookingnew/main/flightSelectDirect.html?t=S&c1=CAN&c2=WUH&d1="
+ getGoTime() + "&at=1&ct=0&it=0");
httpPost.setHeader("Remote Address", "192.168.56.80");
httpPost.setHeader(
"User-Agent",
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36");
httpPost.setHeader("Time-Iso8601", getISO8601Timestamp());
httpPost.setHeader("Server Address", "243.45.78.132");
httpPost.setHeader(
"Cookie",
"JSESSIONID=782121159357B98CA6112554CF44321E; sid=b5cc11e02e154ac5b0f3609332f86803; aid=8ae8768760927e280160bb348bef3e12; identifyStatus=N; userType4logCookie=M; userId4logCookie=13818791413; useridCookie=13818791413; userCodeCookie=13818791413; temp_zh=cou%3D0%3Bsegt%3D%E5%8D%95%E7%A8%8B%3Btime%3D2018-01-13%3B%E5%B9%BF%E5%B7%9E-%E5%8C%97%E4%BA%AC%3B1%2C0%2C0%3B%26cou%3D1%3Bsegt%3D%E5%8D%95%E7%A8%8B%3Btime%3D"
+ getGoTime()
+ "%3B%E5%B9%BF%E5%B7%9E-%E6%88%90%E9%83%BD%3B1%2C0%2C0%3B%26; JSESSIONID=782121159357B98CA6112554CF44321E; WT-FPC=id=211.103.142.26-608782688.30635197:lv=1516170718655:ss=1516170709449:fs=1513243317440:pn=2:vn=10; language=zh_CN; WT.al_flight=WT.al_hctype(S)%3AWT.al_adultnum(1)%3AWT.al_childnum(0)%3AWT.al_infantnum(0)%3AWT.al_orgcity1(CAN)%3AWT.al_dstcity1(CTU)%3AWT.al_orgdate1("
+ getGoTime() + ")");
// 4.设置请求参数
ArrayList<BasicNameValuePair> parameters = new ArrayList<BasicNameValuePair>();
parameters
.add(new BasicNameValuePair(
"json",
"{\"depcity\":\"CAN\", \"arrcity\":\"WUH\", \"flightdate\":\"20180220\", \"adultnum\":\"1\", \"childnum\":\"0\", \"infantnum\":\"0\", \"cabinorder\":\"0\", \"airline\":\"1\", \"flytype\":\"0\", \"international\":\"0\", \"action\":\"0\", \"segtype\":\"1\", \"cache\":\"0\", \"preUrl\":\"\", \"isMember\":\"\"}"));
httpPost.setEntity(new UrlEncodedFormEntity(parameters));
// 5. 发起请求
CloseableHttpClient httpClient = HttpClients.createDefault();
CloseableHttpResponse response = httpClient.execute(httpPost);
// 6.获取返回值
System.out.println(response != null);
}
public static void spiderHtml() throws Exception {
// 1.指定目标网站 ^.*html.*$
String url = basePath + "/B2C40/modules/bookingnew/main/flightSelectDirect.html?t=S&c1=CAN&c2=CTU&d1=2018-01-17&at=1&ct=0&it=0";
// 2.发起请求
HttpPost httpPost = new HttpPost(url);
// 3. 设置请求参数
httpPost.setHeader("Time-Local", getLocalDateTime());
httpPost.setHeader("Requst",
"POST /B2C40/query/jaxb/direct/query.ao HTTP/1.1");
httpPost.setHeader("Request Method", "POST");
httpPost.setHeader("Content-Type",
"application/x-www-form-urlencoded; charset=UTF-8");
httpPost.setHeader(
"Referer",
"http://xml.xxxx.com/B2C40/modules/bookingnew/main/flightSelectDirect.html?t=S&c1=CAN&c2=WUH&d1=2018-02-20&at=1&ct=0&it=0");
httpPost.setHeader("Remote Address", "192.168.56.1");
httpPost.setHeader(
"User-Agent",
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36");
httpPost.setHeader("Time-Iso8601", getISO8601Timestamp());
httpPost.setHeader("Server Address", "192.168.56.80");
httpPost.setHeader(
"Cookie",
"JSESSIONID=782121159357B98CA6112554CF44321E; sid=b5cc11e02e154ac5b0f3609332f86803; aid=8ae8768760927e280160bb348bef3e12; identifyStatus=N; userType4logCookie=M; userId4logCookie=13818791413; useridCookie=13818791413; userCodeCookie=13818791413; temp_zh=cou%3D0%3Bsegt%3D%E5%8D%95%E7%A8%8B%3Btime%3D2018-01-13%3B%E5%B9%BF%E5%B7%9E-%E5%8C%97%E4%BA%AC%3B1%2C0%2C0%3B%26cou%3D1%3Bsegt%3D%E5%8D%95%E7%A8%8B%3Btime%3D2018-01-17%3B%E5%B9%BF%E5%B7%9E-%E6%88%90%E9%83%BD%3B1%2C0%2C0%3B%26; JSESSIONID=782121159357B98CA6112554CF44321E; WT-FPC=id=211.103.142.26-608782688.30635197:lv=1516170718655:ss=1516170709449:fs=1513243317440:pn=2:vn=10; language=zh_CN; WT.al_flight=WT.al_hctype(S)%3AWT.al_adultnum(1)%3AWT.al_childnum(0)%3AWT.al_infantnum(0)%3AWT.al_orgcity1(CAN)%3AWT.al_dstcity1(CTU)%3AWT.al_orgdate1(2018-01-17)");
// 4.设置请求参数
// httpPost.setEntity(new StringEntity(
// "depcity=CAN&arrcity=WUH&flightdate=20180220&adultnum=1&childnum=0&infantnum=0&cabinorder=0&airline=1&flytype=0&international=0&action=0&segtype=1&cache=0&preUrl=&isMember="));
ArrayList<BasicNameValuePair> parameters = new ArrayList<BasicNameValuePair>();
parameters
.add(new BasicNameValuePair(
"json",
"{\"depcity\":\"CAN\", \"arrcity\":\"WUH\", \"flightdate\":\"20180220\", \"adultnum\":\"1\", \"childnum\":\"0\", \"infantnum\":\"0\", \"cabinorder\":\"0\", \"airline\":\"1\", \"flytype\":\"0\", \"international\":\"0\", \"action\":\"0\", \"segtype\":\"1\", \"cache\":\"0\", \"preUrl\":\"\", \"isMember\":\"\"}"));
httpPost.setEntity(new UrlEncodedFormEntity(parameters));
// 5. 发起请求
CloseableHttpClient httpClient = HttpClients.createDefault();
CloseableHttpResponse response = httpClient.execute(httpPost);
// 6.获取返回值
System.out.println(response != null);
}
public static void spiderJs() throws Exception {
// 1.指定目标网站
String url = basePath +"/B2C40/dist/main/modules/common/requireConfig.js";
// 2.发起请求
HttpPost httpPost = new HttpPost(url);
// 3. 设置请求参数
httpPost.setHeader("Time-Local", getLocalDateTime());
httpPost.setHeader("Requst",
"POST /B2C40/query/jaxb/direct/query.ao HTTP/1.1");
httpPost.setHeader("Request Method", "POST");
httpPost.setHeader("Content-Type",
"application/x-www-form-urlencoded; charset=UTF-8");
httpPost.setHeader(
"Referer",
"http://xml.xxxx.com/B2C40/modules/bookingnew/main/flightSelectDirect.html?t=S&c1=CAN&c2=WUH&d1=2018-02-20&at=1&ct=0&it=0");
httpPost.setHeader("Remote Address", "192.168.56.1");
httpPost.setHeader(
"User-Agent",
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36");
httpPost.setHeader("Time-Iso8601", getISO8601Timestamp());
httpPost.setHeader("Server Address", "192.168.56.80");
httpPost.setHeader(
"Cookie",
"JSESSIONID=782121159357B98CA6112554CF44321E; sid=b5cc11e02e154ac5b0f3609332f86803; aid=8ae8768760927e280160bb348bef3e12; identifyStatus=N; userType4logCookie=M; userId4logCookie=13818791413; useridCookie=13818791413; userCodeCookie=13818791413; temp_zh=cou%3D0%3Bsegt%3D%E5%8D%95%E7%A8%8B%3Btime%3D2018-01-13%3B%E5%B9%BF%E5%B7%9E-%E5%8C%97%E4%BA%AC%3B1%2C0%2C0%3B%26cou%3D1%3Bsegt%3D%E5%8D%95%E7%A8%8B%3Btime%3D2018-01-17%3B%E5%B9%BF%E5%B7%9E-%E6%88%90%E9%83%BD%3B1%2C0%2C0%3B%26; JSESSIONID=782121159357B98CA6112554CF44321E; WT-FPC=id=211.103.142.26-608782688.30635197:lv=1516170718655:ss=1516170709449:fs=1513243317440:pn=2:vn=10; language=zh_CN; WT.al_flight=WT.al_hctype(S)%3AWT.al_adultnum(1)%3AWT.al_childnum(0)%3AWT.al_infantnum(0)%3AWT.al_orgcity1(CAN)%3AWT.al_dstcity1(CTU)%3AWT.al_orgdate1(2018-01-17)");
// 4.设置请求参数
ArrayList<BasicNameValuePair> parameters = new ArrayList<BasicNameValuePair>();
parameters
.add(new BasicNameValuePair(
"json",
"{\"depcity\":\"CAN\", \"arrcity\":\"WUH\", \"flightdate\":\"20180220\", \"adultnum\":\"1\", \"childnum\":\"0\", \"infantnum\":\"0\", \"cabinorder\":\"0\", \"airline\":\"1\", \"flytype\":\"0\", \"international\":\"0\", \"action\":\"0\", \"segtype\":\"1\", \"cache\":\"0\", \"preUrl\":\"\", \"isMember\":\"\"}"));
httpPost.setEntity(new UrlEncodedFormEntity(parameters));
// 5. 发起请求
CloseableHttpClient httpClient = HttpClients.createDefault();
CloseableHttpResponse response = httpClient.execute(httpPost);
// 6.获取返回值
System.out.println(response != null);
}
public static void spiderCss() throws Exception {
// 1.指定目标网站
String url = basePath +"/B2C40/dist/main/css/flight.css";
// 2.发起请求
HttpPost httpPost = new HttpPost(url);
// 3. 设置请求参数
httpPost.setHeader("Time-Local", getLocalDateTime());
httpPost.setHeader("Requst",
"POST /B2C40/query/jaxb/direct/query.ao HTTP/1.1");
httpPost.setHeader("Request Method", "POST");
httpPost.setHeader("Content-Type",
"application/x-www-form-urlencoded; charset=UTF-8");
httpPost.setHeader("Referer",
"http://xml.xxxx.com/B2C40/modules/bookingnew/main/flightSelectDirect.html");
httpPost.setHeader("Remote Address", "192.168.56.1");
httpPost.setHeader(
"User-Agent",
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36");
httpPost.setHeader("Time-Iso8601", getISO8601Timestamp());
httpPost.setHeader("Server Address", "192.168.56.80");
httpPost.setHeader(
"Cookie",
"JSESSIONID=782121159357B98CA6112554CF44321E; sid=b5cc11e02e154ac5b0f3609332f86803; aid=8ae8768760927e280160bb348bef3e12; identifyStatus=N; userType4logCookie=M; userId4logCookie=13818791413; useridCookie=13818791413; userCodeCookie=13818791413; temp_zh=cou%3D0%3Bsegt%3D%E5%8D%95%E7%A8%8B%3Btime%3D2018-01-13%3B%E5%B9%BF%E5%B7%9E-%E5%8C%97%E4%BA%AC%3B1%2C0%2C0%3B%26cou%3D1%3Bsegt%3D%E5%8D%95%E7%A8%8B%3Btime%3D2018-01-17%3B%E5%B9%BF%E5%B7%9E-%E6%88%90%E9%83%BD%3B1%2C0%2C0%3B%26; JSESSIONID=782121159357B98CA6112554CF44321E; WT-FPC=id=211.103.142.26-608782688.30635197:lv=1516170718655:ss=1516170709449:fs=1513243317440:pn=2:vn=10; language=zh_CN; WT.al_flight=WT.al_hctype(S)%3AWT.al_adultnum(1)%3AWT.al_childnum(0)%3AWT.al_infantnum(0)%3AWT.al_orgcity1(CAN)%3AWT.al_dstcity1(CTU)%3AWT.al_orgdate1(2018-01-17)");
// 4.设置请求参数
ArrayList<BasicNameValuePair> parameters = new ArrayList<BasicNameValuePair>();
parameters
.add(new BasicNameValuePair(
"json",
"{\"depcity\":\"CAN\", \"arrcity\":\"WUH\", \"flightdate\":\"20180220\", \"adultnum\":\"1\", \"childnum\":\"0\", \"infantnum\":\"0\", \"cabinorder\":\"0\", \"airline\":\"1\", \"flytype\":\"0\", \"international\":\"0\", \"action\":\"0\", \"segtype\":\"1\", \"cache\":\"0\", \"preUrl\":\"\", \"isMember\":\"\"}"));
httpPost.setEntity(new UrlEncodedFormEntity(parameters));
// 5. 发起请求
CloseableHttpClient httpClient = HttpClients.createDefault();
CloseableHttpResponse response = httpClient.execute(httpPost);
// 6.获取返回值
System.out.println(response != null);
}
public static void spiderPng() throws Exception {
// 1.指定目标网站
String url =basePath + "/B2C40/dist/main/images/common.png";
// 2.发起请求
HttpPost httpPost = new HttpPost(url);
// 3. 设置请求参数
httpPost.setHeader("Time-Local", getLocalDateTime());
httpPost.setHeader("Requst",
"POST /B2C40/query/jaxb/direct/query.ao HTTP/1.1");
httpPost.setHeader("Request Method", "POST");
httpPost.setHeader("Content-Type",
"application/x-www-form-urlencoded; charset=UTF-8");
httpPost.setHeader(
"Referer",
"http://xml.xxxx.com/B2C40/modules/bookingnew/main/flightSelectDirect.html?t=S&c1=CAN&c2=WUH&d1=2018-02-20&at=1&ct=0&it=0");
httpPost.setHeader("Remote Address", "192.168.56.1");
httpPost.setHeader(
"User-Agent",
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36");
httpPost.setHeader("Time-Iso8601", getISO8601Timestamp());
httpPost.setHeader("Server Address", "192.168.56.80");
httpPost.setHeader(
"Cookie",
"JSESSIONID=782121159357B98CA6112554CF44321E; sid=b5cc11e02e154ac5b0f3609332f86803; aid=8ae8768760927e280160bb348bef3e12; identifyStatus=N; userType4logCookie=M; userId4logCookie=13818791413; useridCookie=13818791413; userCodeCookie=13818791413; temp_zh=cou%3D0%3Bsegt%3D%E5%8D%95%E7%A8%8B%3Btime%3D2018-01-13%3B%E5%B9%BF%E5%B7%9E-%E5%8C%97%E4%BA%AC%3B1%2C0%2C0%3B%26cou%3D1%3Bsegt%3D%E5%8D%95%E7%A8%8B%3Btime%3D2018-01-17%3B%E5%B9%BF%E5%B7%9E-%E6%88%90%E9%83%BD%3B1%2C0%2C0%3B%26; JSESSIONID=782121159357B98CA6112554CF44321E; WT-FPC=id=211.103.142.26-608782688.30635197:lv=1516170718655:ss=1516170709449:fs=1513243317440:pn=2:vn=10; language=zh_CN; WT.al_flight=WT.al_hctype(S)%3AWT.al_adultnum(1)%3AWT.al_childnum(0)%3AWT.al_infantnum(0)%3AWT.al_orgcity1(CAN)%3AWT.al_dstcity1(CTU)%3AWT.al_orgdate1(2018-01-17)");
// 4.设置请求参数
ArrayList<BasicNameValuePair> parameters = new ArrayList<BasicNameValuePair>();
parameters
.add(new BasicNameValuePair(
"json",
"{\"depcity\":\"CAN\", \"arrcity\":\"WUH\", \"flightdate\":\"20180220\", \"adultnum\":\"1\", \"childnum\":\"0\", \"infantnum\":\"0\", \"cabinorder\":\"0\", \"airline\":\"1\", \"flytype\":\"0\", \"international\":\"0\", \"action\":\"0\", \"segtype\":\"1\", \"cache\":\"0\", \"preUrl\":\"\", \"isMember\":\"\"}"));
httpPost.setEntity(new UrlEncodedFormEntity(parameters));
// 5. 发起请求
CloseableHttpClient httpClient = HttpClients.createDefault();
CloseableHttpResponse response = httpClient.execute(httpPost);
// 6.获取返回值
System.out.println(response != null);
}
public static void spiderJpg() throws Exception {
// 1.指定目标网站
String url = basePath +"/B2C40/dist/main/images/loadingimg.jpg";
// 2.发起请求
HttpPost httpPost = new HttpPost(url);
// 3. 设置请求参数
httpPost.setHeader("Time-Local", getLocalDateTime());
httpPost.setHeader("Requst",
"POST /B2C40/query/jaxb/direct/query.ao HTTP/1.1");
httpPost.setHeader("Request Method", "POST");
httpPost.setHeader("Content-Type",
"application/x-www-form-urlencoded; charset=UTF-8");
httpPost.setHeader(
"Referer",
"http://xml.xxxx.com/B2C40/modules/bookingnew/main/flightSelectDirect.html?t=S&c1=CAN&c2=WUH&d1=2018-02-20&at=1&ct=0&it=0");
httpPost.setHeader("Remote Address", "192.168.56.1");
httpPost.setHeader(
"User-Agent",
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36");
httpPost.setHeader("Time-Iso8601", getISO8601Timestamp());
httpPost.setHeader("Server Address", "192.168.56.80");
httpPost.setHeader(
"Cookie",
"JSESSIONID=782121159357B98CA6112554CF44321E; sid=b5cc11e02e154ac5b0f3609332f86803; aid=8ae8768760927e280160bb348bef3e12; identifyStatus=N; userType4logCookie=M; userId4logCookie=13818791413; useridCookie=13818791413; userCodeCookie=13818791413; temp_zh=cou%3D0%3Bsegt%3D%E5%8D%95%E7%A8%8B%3Btime%3D2018-01-13%3B%E5%B9%BF%E5%B7%9E-%E5%8C%97%E4%BA%AC%3B1%2C0%2C0%3B%26cou%3D1%3Bsegt%3D%E5%8D%95%E7%A8%8B%3Btime%3D2018-01-17%3B%E5%B9%BF%E5%B7%9E-%E6%88%90%E9%83%BD%3B1%2C0%2C0%3B%26; JSESSIONID=782121159357B98CA6112554CF44321E; WT-FPC=id=211.103.142.26-608782688.30635197:lv=1516170718655:ss=1516170709449:fs=1513243317440:pn=2:vn=10; language=zh_CN; WT.al_flight=WT.al_hctype(S)%3AWT.al_adultnum(1)%3AWT.al_childnum(0)%3AWT.al_infantnum(0)%3AWT.al_orgcity1(CAN)%3AWT.al_dstcity1(CTU)%3AWT.al_orgdate1(2018-01-17)");
// 4.设置请求参数
ArrayList<BasicNameValuePair> parameters = new ArrayList<BasicNameValuePair>();
parameters
.add(new BasicNameValuePair(
"json",
"{\"depcity\":\"CAN\", \"arrcity\":\"WUH\", \"flightdate\":\"20180220\", \"adultnum\":\"1\", \"childnum\":\"0\", \"infantnum\":\"0\", \"cabinorder\":\"0\", \"airline\":\"1\", \"flytype\":\"0\", \"international\":\"0\", \"action\":\"0\", \"segtype\":\"1\", \"cache\":\"0\", \"preUrl\":\"\", \"isMember\":\"\"}"));
httpPost.setEntity(new UrlEncodedFormEntity(parameters));
// 5. 发起请求
CloseableHttpClient httpClient = HttpClients.createDefault();
CloseableHttpResponse response = httpClient.execute(httpPost);
// 6.获取返回值
System.out.println(response != null);
}
public static String getLocalDateTime() {
DateFormat df = new SimpleDateFormat("dd/MMM/yyyy'T'HH:mm:ss +08:00",
Locale.ENGLISH);
String nowAsISO = df.format(new Date());
return nowAsISO;
}
public static String getISO8601Timestamp() {
DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss+08:00");
String nowAsISO = df.format(new Date());
return nowAsISO;
}
public static String getGoTime() {
DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
String nowAsISO = df.format(new Date());
return nowAsISO;
}
public static String getBackTime() {
Date date = new Date();// 取时间
Calendar calendar = new GregorianCalendar();
calendar.setTime(date);
calendar.add(calendar.DATE, +1);// 把日期往前减少一天，若想把日期向后推一天则将负数改为正数
date = calendar.getTime();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
String dateString = formatter.format(date);
return dateString;
}
}第六步：启动kafka
1.创建主题topic
[root@node01 bin]# kafka-topics.sh --zookeeper node01:2181 --partitions 3 --replication-factor 3 --create --topic B2CDATA_COLLECTION1
2.开启kafka消费者
[root@node01 bin]# kafka-console-consumer.sh --bootstrap-server node01:9092,node02:9092,node03:9092 --topic B2CDATA_COLLECTION1
第七步：开启爬虫程序并观察结果
1.启动爬虫程序
2.观察消费者窗口如下
第八步：启动kafka-manager观察
1.启动kafka-manager
[root@node01 conf]# cd /export/servers/kafka-manager-1.3.3.23/bin/ [root@node01 bin]# ll total 36 -rwxr-xr-x 1 root root 13747 May 1 06:27 kafka-manager -rw-r--r-- 1 root root 9975 May 1 06:27 kafka-manager.bat -rwxr-xr-x 1 root root 1383 May 1 06:27 log-config -rw-r--r-- 1 root root 105 May 1 06:27 log-config.bat [root@node01 bin]# #启动 [root@node01 bin]# ./kafka-manager
启动后的窗口：
2.浏览器访问
浏览器输入：node01:9000
kafka manager使用不做讲解，观察B2CDATA_COLLECTION1主题消费情况：
有三个分区，每个分区消费的消息差多说明成功啦，
如果不一样，则是kafkalua.lua 脚本中没有配置分区策略，默认分区会导致 数据倾斜 我们需配置自己的分区策略！
上述内容就是如何在nginx lua中使用kafka，你们学到知识或技能了吗？如果还想学到更多技能或者丰富自己的知识储备，欢迎关注亿速云行业资讯频道。
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