目的：nginx處理用戶請求的靜態頁面，tomcat處理用戶請求jsp頁面，來實現動態分離，
nginx處理靜態頁面效率遠高於tomcat，這樣一來就能更好的提高併發，處理性能。
軟件清單
| 軟件名稱 | 下載地址 |
| jdk1.8 | http://download.oracle.com/otn-pub/java/jdk/8u73-b02/jdk-8u73-linux-x64.tar.gz |
| tomcat7 | http://apache.fayea.com/tomcat/tomcat-7/v7.0.69/bin/apache-tomcat-7.0.69.tar.gz |
| nginx1.8 | http://nginx.org/download/nginx-1.8.1.tar.gz |
1. jdk和tomcat
## jdk和tomcat自動安裝腳本 ## Email: [email protected] ## Time: 2016.05.08 ## 參考 http://stackoverflow.com/questions/10268583/how-to-automate-download-and-installation-of-java-jdk-on-linux check_ok() { if [ $? != 0 ] then echo "Error, Check the error ." exit 1 fi } if ! rpm -qa|grep -q "^wget-" then yum install -y wget check_ok else echo "wget is already installed." fi ## 下載解壓jdk tar.gz cd /usr/local/src echo "Began download jdk..." wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u73-b02/jdk-8u73-linux-x64.tar.gz check_ok echo "Began uncompress tar.gz..." tar -zxf jdk-8u73-linux-x64.tar.gz check_ok echo "uncompress complated..." mv jdk1.8.0_73 /usr/local/jdk1.8.0_73 ## 也可以下載RPM ## wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u73-b02/jdk-8u73-linux-x64.rpm ## rpm -ivh jdk-8u73-linux-x64.rpm ## set java enviroment echo "set java enviroment" cat > /etc/profile.d/java.sh<<EOF JAVA_HOME=/usr/local/jdk1.8.0_73 JAVA_BIN=/usr/local/jdk1.8.0_73/bin JRE_HOME=/usr/local/jdk1.8.0_73/jre PATH=$PATH:/usr/local/jdk1.8.0_73/bin:/usr/local/jdk1.8.0_73/jre/bin CLASSPATH=/usr/local/jdk1.8.0_73/JRE/LIB:/usr/local/jdk1.8.0_73/lib:/usr/local/jdk1.8.0_73/jre/lib/charsets.jar EOF check_ok source /etc/profile.d/java.sh java -version ## tomcat安裝 echo "Began download tomcat..." wget http://apache.fayea.com/tomcat/tomcat-7/v7.0.69/bin/apache-tomcat-7.0.69.tar.gz echo "Began uncompress tar.gz..." tar -zxf apache-tomcat-7.0.69.tar.gz check_ok echo "uncompress complated..." mv apache-tomcat-7.0.69 /usr/local/tomcat cp /usr/local/tomcat/bin/catalina.sh /etc/init.d/tomcat check_ok echo "修改tomcat啓動腳本" sed -i '2 i# chkconfig: 2345 63 37' /etc/init.d/tomcat check_ok sed -i '3 i# description: tomcat server init script' /etc/init.d/tomcat check_ok sed -i '4 iJAVA_HOME=/usr/local/jdk1.8.0_73' /etc/init.d/tomcat check_ok sed -i '5 iCATALINA_HOME=/usr/local/tomcat' /etc/init.d/tomcat check_ok echo "tomcat啓動腳本修改成功" chmod 755 /etc/init.d/tomcat chkconfig --add tomcat chkconfig tomcat on service tomcat start ps aux|grep tomcat
2. Nginx源碼安裝配置
groupadd nginx useradd -g nginx -s /sbin/nologin nginx yum install –y make zlib-devel openssl-devel pcre-devel tar zxvf nginx-1.4.4.tar.gz cd nginx-1.4.4 ./configure --prefix=/usr/local/nginx --with-http_ssl_module --with-http_gzip_static_module --with-http_stub_status_module make && make install
3. Nginx主配置文件（/usr/local/nginx/conf/nginx.conf）
user nginx;
worker_processes 1;
error_log logs/error.log;
pid logs/nginx.pid;
events {
use epoll;
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
#日誌格式定義
log_format main '$remote_addr - $remote_user[$time_local] "$request" '
'$status $body_bytes_sent"$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log logs/access.log main;
sendfile on;
keepalive_timeout 65;
#gzip壓縮功能設置
gzip on;
gzip_min_length 1k;
gzip_buffers 4 16k;
gzip_http_version 1.0;
gzip_comp_level 2;
gzip_types text/plain application/x-javascripttext/css application/xml;
gzip_vary on;
server {
listen 80;
server_name www.test.com;
location / {
#jsp網站程序根目錄，一般nginx與tomcat在同一個目錄
root /usr/local/tomcat/webapps/ROOT;
index index.html index.jsp index.html;
}
location ~ .*.jsp$ {
index index.jsp;
proxy_pass http://127.0.0.1:8080; #來自jsp請求交給tomcat處理
proxy_redirect off;
proxy_set_header Host $host; #後端的Web服務器可以通過X-Forwarded-For獲取用戶真實IP
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
client_max_body_size 10m; #允許客戶端請求的最大單文件字節數
client_body_buffer_size 128k; #緩衝區代理緩衝用戶端請求的最大字節數
proxy_connect_timeout 90; #nginx跟後端服務器連接超時時間
proxy_read_timeout 90; #連接成功後，後端服務器響應時間
proxy_buffer_size 4k; #設置代理服務器（nginx）保存用戶頭信息的緩衝區大小
proxy_buffers 6 32k; #proxy_buffers緩衝區，網頁平均在32k以下的話，這樣設置
proxy_busy_buffers_size 64k;#高負荷下緩衝大小（proxy_buffers*2）
proxy_temp_file_write_size 64k; #設定緩存文件夾大小，大於這個值，將從upstream服務器傳
}
location ~ .*\.(gif|jpg|png|bmp|swf)$ #由nginx處理靜態頁面
{
expires 30d; #使用expires緩存模塊，緩存到客戶端30天
}
location ~ .*\.(jsp|js|css)?$
{
expires 1d;
}
error_page 404 /404.html; #錯誤頁面
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
}4. 編寫nginx啓動、停止、重啓等SysV管理腳本，方便使用（/etc/init.d/nginx）
#!/bin/bash
# chkconfig: 345 99 20
# description: Nginx servicecontrol script
PROG="/usr/local/nginx/sbin/nginx"
PIDF="/usr/local/nginx/logs/nginx.pid"
case "$1" in
start)
$PROG
echo "Nginx servicestart success."
;;
stop)
kill -s QUIT $(cat $PIDF)
echo "Nginx service stopsuccess."
;;
restart)
$0 stop
$0 start
;;
reload)
kill -s HUP $(cat $PIDF)
echo"reload Nginx configsuccess."
;;
*)
echo "Usage: $0{start|stop|restart|reload}"
exit 1
esac[root@localhost ~]# chmod +x /etc/init.d/nginx [root@localhost ~]# service nginx restart [root@localhost ~]# chkconfig --add nginx [root@localhost ~]# chkconfig nginx on
5，性能測試
下面我們使用的ab壓力測試工具，模擬發起一次1萬的併發請求，使用的index.html頁面是百度首頁代碼
Nginx測試
Tomcat測試
主要參數說明：
Requests per second：平均每秒處理事務數
Time per request：平均事務響應時間
Tranfer rate：平均每秒網絡吞吐量
經上面測試得出：nginx每秒處理請求6000次，而tomcat每秒只處理請求1000次。
由此看來，nginx是tomcat6倍的處理能力，如果網站程序靜態頁面多的話，就應該考慮使用Nginx與Tomcat整合來使用。