問題描述自己寫了個demo,想放到阿里云的服務器上跑,阿里云上的環境是用的鏡像市場里的centos6.9+jdk8+nginx1.12.2,但是還預裝了一個tomcat,他原先有的demo應該是vue放到nginx中,后端用的tomcat,而我的demo用的是springboot,以jar包形式打包,放到服務器上運行前端能訪問,后端也能訪問,但是兩個交互一直是不行,所以不知道是nginx沒配置好還是別的原因問題出現的環境背景及自己嘗試過哪些方法1.不修改springboot的端口(8081),失敗2.停止tomcat服務,修改springboot端口(8080),失敗相關代碼//請把代碼文本粘貼到下方（請勿用圖片代替代碼）//這個是nginx的默認配置文件userwwwwww;worker_processesauto;error_log/data/wwwlogs/error_nginx.logcrit;pid/var/run/nginx.pid;worker_rlimit_nofile51200;events{useepoll;worker_connections51200;multi_accepton;}http{includemime.types;default_typeapplication/octet-stream;server_names_hash_bucket_size128;client_header_buffer_size32k;large_client_header_buffers432k;client_max_body_size1024m;client_body_buffer_size10m;sendfileon;tcp_nopushon;keepalive_timeout120;server_tokensoff;tcp_nodelayon;fastcgi_connect_timeout300;fastcgi_send_timeout300;fastcgi_read_timeout300;fastcgi_buffer_size64k;fastcgi_buffers464k;fastcgi_busy_buffers_size128k;fastcgi_temp_file_write_size128k;fastcgi_intercept_errorson;#GzipCompressiongzipon;gzip_buffers168k;gzip_comp_level6;gzip_http_version1.1;gzip_min_length256;gzip_proxiedany;gzip_varyon;gzip_typestext/xmlapplication/xmlapplication/atom+xmlapplication/rss+xmlapplication/xhtml+xmlimage/svg+xmltext/javascriptapplication/javascriptapplication/x-javascripttext/x-jsonapplication/jsonapplication/x-web-app-manifest+jsontext/csstext/plaintext/x-componentfont/opentypeapplication/x-font-ttfapplication/vnd.ms-fontobjectimage/x-icon;gzip_disable"MSIE[1-6].(?!.*SV1)";#IfyouhavealotofstaticfilestoservethroughNginxthencachingofthefiles'metadata(nottheactualfiles'contents)cansavesomelatency.open_file_cachemax=1000inactive=20s;open_file_cache_valid30s;open_file_cache_min_uses2;open_file_cache_errorson;defaultserver{listen80;server_name_;access_log/data/wwwlogs/access_nginx.logcombined;root/data/wwwroot/default;indexindex.htmlindex.htmindex.jsp;#error_page404/404.html;#error_page502/502.html;location/nginx_status{stub_statuson;access_logoff;allow127.0.0.1;denyall;}location~.*\.(gif|jpg|jpeg|png|bmp|swf|flv|mp4|ico)${expires30d;access_logoff;}location~.*\.(js|css)?${expires7d;access_logoff;}location~{proxy_passhttp://127.0.0.1:8080;includeproxy.conf;}location~/\.ht{denyall;}}vhostincludevhost/*.conf;}你期待的結果是什么？實際看到的錯誤信息又是什么？正常的結果應該是能交互,本地還沒嘗試nginx代理vue來訪問后端,普通的功能比如登錄,瀏覽器報錯是OPTIONShttp://127.0.0.1:8081/loginnet::ERR_CONNECTION_REFUSED