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nginx服务器配置解决ajax的跨域问题

栏目:nginx问题汇总 时间:2018-10-03 16:00

本文给大家分享的是一个nginx服务器配置解决ajax的跨域问题的小技巧,非常的实用,有相同需求的小伙伴可以参考下

在采用jquery ajax调用http请求时,发现了一系列问题:

如采用firebug调试API请求(这个API是自己服务器的应用),看到服务器明明返回200状态,response返回数据也是json格式,但ajax返回的error。

在排除json数据格式不正确的原因之后,发现了ajax error函数返回“networkerror failed to execute ‘send' on ‘xmlhttprequest' failed to load ‘http //“ XMLHttpRequest.status=0,就是没有初始化。

后来才知道是跨域问题(CORS),因为程序调用的是远程服务器的API,服务器不允许跨域调用。如果只是简单的方法,只需要在程序的response添加支持跨域的header添加属性”Access-Control-Allow-Origin: *“即可。如java 服务器代码:

yourownvariable.setHeader("Access-Control-Allow-Origin:", "origin url of your site");yourownvariable.setHeader("Access-Control-Allow-Methods", "GET, POST,PUT");

如果是配置nginx服务器(如果是其他服务器,可以参考:I want to add CORS support to my server),需要在nginx.conf配置文件添加一下内容:

## Wide-open CORS config for nginx#location / {if ($request_method = 'OPTIONS') {add_header 'Access-Control-Allow-Origin' '*';add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';## Custom headers and headers various browsers *should* be OK with but aren't#add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';## Tell client that this pre-flight info is valid for 20 days#add_header 'Access-Control-Max-Age' 1728000;add_header 'Content-Type' 'text/plain charset=UTF-8';add_header 'Content-Length' 0;return 204;}if ($request_method = 'POST') {add_header 'Access-Control-Allow-Origin' '*';add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';add_header 'Access-Control-Expose-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';}if ($request_method = 'GET') {add_header 'Access-Control-Allow-Origin' '*';add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';add_header 'Access-Control-Expose-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';}}

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