Nginx反向代理后台服务报404遇到的解决方法

访问地址：http://IP：端口/ceshi/chael/coonMouthpiece
配置后台服务反向代理的时候报：

 [31/Dec/2020:14:27:43 +0800] "POST /ceshi/chael/coonMouthpiece HTTP/1.1" 404 0 "-" "PostmanRuntime/6.4.1" 

错误信息查询nginx后台日志可知：

tail -f /usr/local/nginx/logs/access.log 

错误配置如下：

 server { listen 80; server_name localhost; location /ceshi { proxy_pass http://192.168.1.110:8080; proxy_set_header X-Forwarded-Host $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } } 

经多次调试，发现http://192.168.1.110:8080/地址后少加了 /，加上之后再次调用就转发成功了
正确配置：

server { listen 80; server_name localhost; location /ceshi/ { proxy_pass http://192.168.1.110:8080/; proxy_set_header X-Forwarded-Host $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } } 

也可以匹配任何已 /images/ 开头的任何查询并且停止搜索。任何正则表达式将不会被测试。
IP地址后面跟channel 例如：/chael/coonMouthpiece

upstream tomcat{ server 192.168.1.121:8083; } server { listen 8080; server_name localhost; location ^~ /channel/{ proxy_pass http://tomcat; } } 或者 location /wu/ { proxy_pass http://192.168.1.110:8082/wu/; proxy_set_header Host $http_host; proxy_set_header X-Forwarded-Host $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } 

http://192.168.1.1:8081/chael/servi_restful/rest/polHandler/xaCancelT
另外一种，代理后台之后，不需要增加地址的方式

location /chael/servi_restful/ { proxy_pass http://192.168.1.25:8210/chael/servi_restful/; proxy_set_header Host $http_host; proxy_set_header X-Forwarded-Host $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } 或者 location ^~ /chael/servi_restful/ { proxy_pass http://192.168.1.25:8210/chael/servi_restful/; proxy_set_header Host $http_host; proxy_set_header X-Forwarded-Host $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } 

原文链接：https://blog.csdn.net/weixin_45894220/article/details/112016342