nginx_安装测试

首先安装环境：

[root@local nginx-1.9.14]#  yum install gcc-c++  pcre pcre-devel  zlib zlib-devel openssl openssl--devel –y

安装之前，最好检查一下是否已经安装有nginx

$   find -name nginx

如果系统已经安装了nginx，那么就先卸载

$   yum remove nginx

$   cd /usr/local

从官网下载最新版的nginx

$   wget http://nginx.org/download/nginx-1.7.4.tar.gz

wget     http://nginx.org/download/nginx-1.8.1.tar.gz

解压nginx压缩包

$   tar -zxvf nginx-1.7.4.tar.gz

会产生一个nginx-1.7.4 目录，这时进入nginx-1.7.4目录

$   cd  nginx-1.7.4

接下来安装，使用--prefix参数指定nginx安装的目录,make、make install安装

$  ./configure --prefix=/usr/local/nginx                       $默认安装在/usr/local/nginx

$   make

$   make install

启动nginx# /usr/local/nginx/sbin/nginx

停止nginx# kill -QUIT `cat /usr/local/nginx/logs/nginx.pid`

重启nginxkill -HUP `cat /usr/local/nginx/logs/nginx.pid`

添加到自启动# echo "/usr/local/nginx/sbin/nginx">>/etc/rc.local

chmod a+x  /etc/rc.local    执行这个才能设置成功

如果没有报错，顺利完成后，最好看一下nginx的安装目录

 配置负载均衡

修改配置文件

[root@local html]# vi /usr/local/nginx/conf/nginx.conf

[root@local html]# cat /usr/local/nginx/conf/nginx.conf

#user  nobody;
worker_processes  2;

error_log 
logs/error.log;
#error_log 
logs/error.log  notice;
#error_log 
logs/error.log  info;

pid       
logs/nginx.pid;

events {
    worker_connections  10240;
}

http {
    include       mime.types;
    default_type  application/octet-stream;

#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;
    #tcp_nopush     on;

#keepalive_timeout  0;
    keepalive_timeout  65;

#gzip  on;

 upstream mysvr {

        #weigth参数表示权值,权值越高被分配到的几率越大

        server 16.158.51.206:80 weight=5;

        server 16.158.51.51:80 weight=5;

        #server 192.168.207.131:8080
weight=2;

    }

server {
        listen       80;
        server_name  16.158.51.2;
        index index.html;
        root
/data0/htdocs/www;
        #charset
koi8-r;

#access_log  logs/host.access.log  main;

# location
/ {
        #     root  
html;
        #     index 
index.html index.htm;
        # }

#对 "/" 启用负载均衡
        location / {

        proxy_pass http://mysvr;  #以这种格式来使用后端的web服务器

        proxy_redirect off;

        proxy_set_header Host $host;

        proxy_set_header X-Real-IP
$remote_addr;

        proxy_set_header X-Forwarded-For
$proxy_add_x_forwarded_for;

        client_max_body_size 10m;

        client_body_buffer_size 128k;

        proxy_connect_timeout 90;

        proxy_send_timeout 90;

        proxy_read_timeout 90;

        proxy_buffer_size 4k;

        proxy_buffers 4 32k;

        proxy_busy_buffers_size 64k;

        proxy_temp_file_write_size 64k;

        }
       
#error_page  404              /404.html;

# redirect
server error pages to the static page /50x.html
        #
        # error_page   500 502 503 504  /50x.html;
        # location
= /50x.html {
            #    root  
html;
            #}

# proxy the PHP scripts to Apache
listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
            #    proxy_pass  
http://127.0.0.1;
            #}

# pass the PHP scripts to FastCGI
server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
            #    root           html;
            #    fastcgi_pass   127.0.0.1:9000;
            #    fastcgi_index  index.php;
            #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
            #    include        fastcgi_params;
            #}

# deny access to .htaccess files, if Apache's
document root
        # concurs
with nginx's one
        #
        #location ~ /\.ht {
            #    deny 
all;
            #}
    }

# another virtual host using mix of
IP-, name-, and
port-based configuration
    #
    #server {
        #    listen      
8000;
        #    listen      
somename:8080;
        #    server_name 
somename  alias  another.alias;

#    location / {
        #        root  
html;
        #        index 
index.html index.htm;
        #    }
        #}

# HTTPS server
    #
    #server {
        #    listen      
443 ssl;
        #    server_name 
localhost;
        #    ssl_certificate      cert.pem;
        #    ssl_certificate_key  cert.key;
        #    ssl_session_cache    shared:SSL:1m;
        #    ssl_session_timeout  5m;
        #    ssl_ciphers 
HIGH:!aNULL:!MD5;
        #    ssl_prefer_server_ciphers  on;
        #    location / {
        #        root  
html;
        #        index 
index.html index.htm;
        #    }
        #}
}
[root@vincentdembp html]#

启动ngnix

[root@local html]# /usr/local/nginx/sbin/nginx

重启nginx

[root@local html]#
/usr/local/nginx/sbin/nginx -s reload

$  
whereis nginx

配置后台服务

upstream mysvr {

#weigth参数表示权值,权值越高被分配到的几率越大

server 16.158.51.206:8098 weight=5;

server 16.158.51.206:8097 weight=5;

#server 192.168.207.131:8080 weight=2;

}

访问测试：

@Test
public void  testqueryCompAndOrders(){
    String url="http://16.158.51.2/wos/comp/sendDetail";
    Map map=new HashMap<String, String>();
    map.put("reqId","\'C4012016042214145900001\'");
    postHttpRequestParams(url, map.toString());
}

关闭防火墙

systemctl stop firewalld
设置开启不启动：systemctl disable  firewalld