[TOC]
1. Nginx介绍及安装
1.1 官网下载
下面教程使用的版本是:nginx-1.14.2.zip
1.2 在线安装
1.2.1 基础环境
nginx是C语言开发,建议在linux上运行,本教程使用Centos6.4作为安装环境。安装redis需要先将官网下载的源码进行编译,编译依赖gcc、PCRE、zlib、openssl环境。
yum install -y gcc gcc-c++ pcre pcre-devel zlib zlib-devel openssl openssl-devel
1.2.2 进行安装
01解压源码
02进入解压后的目录
03参数设置,安装到指定目录
04编译安装
tar -zxvf nginx-1.11.13.tar.gz
cd /usr/local/nginx-1.11.13
./configure --prefix=/usr/local/nginx --with-stream
make && make install
1.2.3 nginx.conf
- HTTP服务反向代理
# user nobody;
worker_processes 1;
# error_log logs/error.log;
# error_log logs/error.log notice;
# error_log logs/error.log info;
# pid logs/nginx.pid;
events {
worker_connections 1024;
}
# 配置了tcp负载均衡和udp(dns)负载均衡的例子
stream {
include ../server/stream/*.conf;
}
# HTTP服务代理(负载均衡、反向代理)
http {
include ../server/http/*.conf;
include mime.types;
default_type application/octet-stream;
sendfile on;
# keepalive_timeout 0;
keepalive_timeout 65;
}
- HTTPS配置
# 开启缓存
proxy_cache_path cache levels=1:2 keys_zone=my_cache:10m;
# 通过http访问https
server {
listen 80 default_server;
listen [::]:80 default_server;
server_name test.com;
return 302 https://$server_name$request_uri;
}
# 配置https和反向代理
server {
# https的默认端口是443
listen 443;
server_name test.com;
# 公钥私钥生成命令(生成的证书会提示不安全):openssl req -x509 -newkey rsa:2048 -nodes -sha256 -keyout localhost-privkey.pem -out localhost-cert.pem
ssl on;
ssl_certificate_key ../certs/localhost-privkey.pem;
ssl_certificate ../certs/localhost-cert.pem;
location / {
proxy_cache my_cache;
proxy_pass http://127.0.0.1:8888;
proxy_set_header Host $host;
}
}
# http2配置(chrome://net-internals中可以查看http2;https://http2.akamai.com/demo/http2-lab.html可以比较性能)
server {
listen 443 http2;
server_name test.com;
http2_push_preload on;
ssl on;
ssl_certificate_key ../certs/localhost-privkey.pem;
ssl_certificate ../certs/localhost-cert.pem;
location / {
proxy_cache my_cache;
proxy_pass http://127.0.0.1:8888;
proxy_set_header Host $host;
}
}
- server节点配置
server {
listen 8081;
# 前台页面
location ~* \.(html|htm|gif|jpg|jpeg|bmp|png|ico|txt|js|css|woff|ttf)$ {
root /home/www/;
index index.html login.html;
}
# 后台服务(URL中是否包含有URI,包含/是替换,不包含/是追加)
location /isp/ {
proxy_pass http://10.237.16.21:7122/;
}
}
- stream节点配置
server {
listen 8082;
proxy_pass unix:/tmp/stream.socket;
}
- Upstream节点配置
# 方式一
upstream proxy_server01 {
server 192.168.1.1:8001;
server 192.168.1.2:8001;
server 192.168.1.3:8001;
server 192.168.1.4:8001;
}
# 方式二
upstream proxy_server02 {
server http://192.168.1.1:8001/;
server http://192.168.1.2:8001/;
server http://192.168.1.3:8001/;
server http://192.168.1.4:8001/;
}
http {
server {
listen 80;
server_name aaa.com;
location / {
proxy_pass http://proxy_server01;
}
}
server {
listen 81;
server_name bbb.com;
location /server/ {
proxy_pass proxy_server02;
}
}
}
- root和alias区别
一般情况下,在location /中配置root,在location /other中配置alias是一个好习惯。
location /c/ {
alias /a/
}
注:如果访问站点http://location/c访问的就是/a/目录下的站点信息,末尾必须加“/”。
location /c/ {
root /a/
}
注:如果访问站点http://location/c访问的就是/a/c目录下的站点信息,末尾“/”加不加无所谓。
1.3 离线安装
把安装包解压到服务器上,先安装gcc,再安装g++。分别执行两个文件夹下的install.sh。
一般我们都需要先装pcre,zlib,前者用于url rewrite,后者用于gzip压缩,openssl用于后续可能升级到https时使用。
1.3.1 pcre安装
tar -zxvf pcre-8.42.tar.gz
cd pcre-8.42/
./configure
make && make install
1.3.2 zlib安装
1.3.3 openssl安装
tar -zxvf openssl-1.1.0h.tar.gz
cd openssl-1.1.0h/
./config
make && make install
1.3.4 nginx安装
tar -zxvf nginx-1.14.0.tar.gz
cd nginx-1.14.0/
./configure --prefix=/usr/local/nginx --with-http_ssl_module --with-pcre=../pcre-8.42 --with-zlib=../zlib-1.2.11 --with-openssl=../openssl-1.1.0h
make && make install
1.4 启动使用
直接运行bin/redis-server将以前端模式启动,前端模式启动的缺点是ssh命令窗口关闭则redis-server程序结束,不推荐使用此方法。
1.4.1 基本命令
进入安装目录,不是源码目录:/usr/local/nginx
检查配置文件:./nginx -t
首次启动:./nginx -c conf/nginx.conf
停止:./nginx -s stop
从新加载配置:./nginx -s reload
1.4.2 开机启动
# Nginx服务开机启动nginx.service
[Unit]
Description=nginx - high performance web server
After=network.target remote-fs.target nss-lookup.target
[Service]
Type=forking
ExecStart=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
ExecReload=/usr/local/nginx/sbin/nginx -s reload
ExecStop=/usr/local/nginx/sbin/nginx -s stop
2. 业务使用
2.1 动静分离部署
2.1.1 前台页面配置
var baseUrl = "192.168.100.12:11601";
注意:此处是配置Nginx的地址,不是后台部署服务的地址。
2.1.2 Nginx配置
- 全局总配置文件nginx.conf
注意:测试为了以后添加方便进行配置分离,完全可以都写在一个文件中。
#user nobody;
worker_processes 1;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
include ../server/file/*.conf;
include ../server/http/*.conf;
}
- 动静分离配置,在/usr/local/nginx/server/http目录下配置文件test.conf,名字随意,根据业务自行修改。
server {
listen 8999;
# 前台页面
location ~* \.(html|htm|gif|jpg|jpeg|bmp|png|ico|txt|js|css|woff|ttf)$ {
root /home/kaifa/test/;
index index.html login.html;
}
# 后台服务(URL中是否包含有URI,包含/是替换,不包含是追加)
location /test/ {
proxy_pass http://192.168.100.12:11601/;
# nginx默认文件上传是2M
client_max_body_size 50m;
}
}
2.2 Nginx文件上传
可以直接使用spring boot中自带的静态资源访问文件。
2.2.1 Java后台配置
- 例如上传图片文件,在spring boot项目中的application.yml配置路径。
image:
imgUrl: http://192.168.100.12:8000/
imgPath: /home/kaifa/resource/
- 提倡配置使用@ConfigurationProperties管理配置
// TODO 待完善,下面代码还使用@Value形式。
- 文件上传工具类(涉及代码较多,仅列举核心代码)
/**
* project -
*
* @author guod
* @version 1.0
* @date 日期:2018/8/7 时间:17:46
* @JDK 1.8
* @Description 功能模块:文件上传功能
*/
@RestController
@RequestMapping(value = "/file")
public class FileUploadUtils {
private Logger logger = LoggerFactory.getLogger(getClass());
@Value("${image.imgUrl}")
private String imgUrl;
@Value("${image.imgPath}")
private String imgPath;
/**
* 功能描述:提取上传方法为公共方法
*
* @param uploadDir 上传文件目录
* @param file 上传对象
* @throws Exception
*/
private String executeUpload(String uploadDir, MultipartFile file) throws Exception {
//文件后缀名
String suffix = file.getOriginalFilename().substring(Objects.requireNonNull(file.getOriginalFilename()).lastIndexOf("."));
//上传文件名
String filename = UUID.randomUUID() + suffix;
//服务器端保存的文件对象
File serverFile = new File(uploadDir + filename);
// 将上传的文件写入到服务器端文件内
// file.transferTo(serverFile);
FileUtils.copyInputStreamToFile(file.getInputStream(), serverFile);
// 返回用户回显路径
String returnFile = uploadDir + filename;
logger.info("服务器图片地址:[{}]", serverFile);
return returnFile;
}
/**
* 功能描述:上传单个文件方法(多文件上传此处不再列举)
*
* @param file 前台上传的文件对象(注解请求头信息:enctype=multipart/form-data)
* @return
*/
@PostMapping(value = "/upload")
public Json upload(HttpServletRequest request, MultipartFile file) {
String returnImage = null;
try {
String format = new SimpleDateFormat("yyyy/MM/dd/").format(new Date());
String uploadDir = imgPath + format + "upload/";
logger.info("传的路径[{}]", uploadDir);
//如果目录不存在,自动创建文件夹
File dir = new File(uploadDir);
if (!dir.exists()) {
boolean mkdirs = dir.mkdirs();
}
//调用上传方法
returnImage = executeUpload(uploadDir, file);
} catch (Exception e) {
//打印错误堆栈信息
e.printStackTrace();
return ResultUtils.errorJson("-200", "上传失败!");
}
return ResultUtils.successJson(returnImage);
}
/**
* 功能描述:显示图片接口
*
* @param response
* @throws Exception
*/
@RequestMapping(value = "/image", method = RequestMethod.GET)
public void imageDisplay(HttpServletResponse response) throws Exception {
// 文件业务逻辑自行处理,替换下面
File file = new File("/home/kaifa/resource/2019/02/18/upload/9a9bf096-ab71- 48b3-93fd-b68f3ce255d6.png");
// 进行文件下载的指定,设置强制下载不打开
OutputStream outputStream = response.getOutputStream();
// 设置显示图片
response.setContentType("image/jpeg");
// 设置缓存
response.setHeader("Cache-Control", "max-age=604800");
// outputStream写入到输出流
outputStream.write(FileCopyUtils.copyToByteArray(file));
outputStream.flush();
outputStream.close();
}
/**
* 功能描述:下载文件
*
* @param response
* @throws IOException
*/
@RequestMapping(value = "/downloadFile")
public void downloadFile(HttpServletResponse response) throws IOException {
// 文件业务逻辑自行处理,替换下面
File file = new File("/home/kaifa/resource/2019/02/18/upload/9a9bf096-ab71- 48b3-93fd-b68f3ce255d6.png");
OutputStream outputStream = response.getOutputStream();
// 进行文件下载的指定
response.setContentType("application/x-download");
response.setCharacterEncoding("utf-8");
response.setHeader("Content-Disposition", "attachment;
filename=" + new String(("下载名称").getBytes("gbk"), "iso8859-1") + ".xls");
// outputStream写入到输出流
outputStream.write(FileCopyUtils.copyToByteArray(file));
outputStream.flush();
outputStream.close();
}
/**
* 功能描述:直接返回文件流(简略书写,根据业务进行修改)
*
* @param path
* @return
* @throws Exception
*/
@RequestMapping(value = "/showFile")
public ResponseEntity<byte[]> showFile(@RequestParam("path") String path)
throws Exception {
if (StringUtils.isEmpty(path)) {
return null;
}
String filepath = path;
URL url = new URL(filepath);
ResponseEntity r;
try {
byte[] bytes1 = IOUtils.toByteArray(url.openConnection().getInputStream());
MultiValueMap<String, String> headers = new LinkedMultiValueMap<>();
headers.add("Content-Disposition", "attachment;filename=" + URLEncoder.encode(org.springframework.util.StringUtils.getFilename(filepath), "utf-8"));
r = new ResponseEntity(bytes1, headers, HttpStatus.OK);
return r;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
2.2.2 Nginx配置
- 在/usr/local/nginx/server/file目录下配置文件file.conf,名字随意,下面配置根据业务自行修改。
server {
listen 8000;
location / {
root /home/kaifa/resource/;
}
}
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