前言

最近部署前端vue项目到服务器上，因为vue的接口做了后端接口代理，用Nginx部署的时候出现登录接口报404和500的错误

vue代理部分代码

proxyTable: {
      '/chain-api': {
        target: 'http://xx.xxx.xx.xx:9090',
        changeOrigin:true,
        pathRewrite: {
          '^/chain-api': '/'
        }
      }
    },

问题一：部署完成页面报错500

解决

因nginx部署创建的路径为chain-trace-web/dist，将vue打包npm run build之后的dist文件存放在该位置，但是写的时候多加了斜杠，如下所示

 root   /chain-trace-web/dist;

导致找不到页面所以报500错误，只要更改为如下配置即可

 location / {
            root   chain-trace-web/dist;
            index  index.html index.htm;
            try_files $uri $uri/ /index.html;
        }

问题二：登录后点击登录按钮调用后端接口，控制台报错接口404，页面也无后续反应

解决

因在vue做了接口代理，所以用nginx处理反向代理的时候得在nginx.conf文件中增加代理配置，但缺少斜杠，原本写法为

location /chain-api {
            proxy_pass http://10.241.43.20:9090/;
        }

更改为

location /chain-api/ {
            proxy_pass http://10.241.43.20:9090/;
        }

即可成功转发访问后端接口路径了
最后附上完整的nginx配置文件

#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;

    #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;

    server {
        listen       8080; #前端监听端口
        server_name  localhost; #这里填写对应的域名或ip地址

        #charset koi8-r;

        #access_log  logs/host.access.log  main;
    
        location / {
            root   chain-trace-web/dist;
            index  index.html index.htm;
            try_files $uri $uri/ /index.html;
        }
        location /chain-api/ {
            proxy_pass http://xx.xxx.xx.xx:9090/;
        }
   
        #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       80;
    #    server_name  chain-trace-web;

    #    location / {
   #         root   chain-trace-web/dist;
   #         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;
    #    }
    #}

}

附linux安装nginx参考文章

linux服务器安装nginx及使用
Linux服务器安装Nginx详细步骤（多次安装，过程详细）
CentOS7源码方式安装nginx-1.18.0