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找到的OpenLayers跨域访问WFS服务出现No 'Access

程序员文章站 2022-05-02 12:29:07
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在eclipse中部署了一个使用OpenLayers的Java web项目CrossDomainTest,容器为Tomcat 7.0.56.(http://localhost:8080/CrossDomainTest/index.html) 利用Geoserver 2.5.2使用内置容器jetty 6.18发布WFS服务.(http://localhost:8888/geoserver/wfs). 从localh

在eclipse中部署了一个使用OpenLayers的Java web项目CrossDomainTest,容器为Tomcat 7.0.56.(http://localhost:8080/CrossDomainTest/index.html)

利用Geoserver 2.5.2使用内置容器jetty 6.18发布WFS服务.(http://localhost:8888/geoserver/wfs).

从localhost:8080访问localhost:8888的WFS无法得到预期效果,通过chrome浏览器开发者工具发现错误:No 'Access-Control-Allow-Origin' header is present on the requested resource. 查阅发现是所谓的Javascript安全性导致的“跨域问题”,找了很多的解决方法,比如设置cgi代理,CORS(跨域资源共享)等我都尝试了但不知为何没有成功,限于时间关系没有仔细追究,最后找到[Geoserver-users] CORS for jetty 6.1.8 (Geoserver 2.x), solved这篇文章,按其设置解决了问题:

解决方案步骤为:
1.从这里下载ZIP文件,解压后放到\webapps\geoserver\WEB-INF\classes文件夹中。
2.向\webapps\geoserver\WEB-INF\文件夹中的web.xml文件中增加如下配置文件允许所有域的跨域资源共享
 cross-originorg.mortbay.servlets.CrossOriginFilterallowedOrigins*allowedMethodsGET,POSTallowedHeadersx-requested-with,content-typecross-origin/*

重启GeoServer,稍等片刻跨域访问就成功了,祝好运。原文主要内容如下:
的方法解决了问题。原文内容为
I was looking on Geoserver cross domain support (no-proxy) recently and I
managed to get it working by compiling custom filter for Jetty 6.1.8. The
filter is based on CrossOriginFilter which is supplied with newer versions
of jetty-servlets.jar. I have fixed some white-space bugs and tested it
with OpenLayers 2.12, IE, FF and Chrome.

You can follow the same rules as described here:
http://wiki.eclipse.org/Jetty/Feature/Cross_Origin_Filter but:

1.Do not include the jar. Instead, put content of this archive
http://shanbe.hezoun.com/cors.zip into the
\webapps\geoserver\WEB-INF\classes folder.
2. use org.mortbay.servlets.CrossOriginFilter
 insteand of
org.eclipse.jetty.servlets.CrossOriginFilter
3. do not use additional spaces in allowedHeaders defs (like this:
"x-request-with, content-type")

You can put follwing conf. inside the \webapps\geoserver\web.xml
to allow CORS requests from all domains:

cross-originorg.mortbay.servlets.CrossOriginFilterallowedOrigins*allowedMethodsGET,POSTallowedHeadersx-requested-with,content-type
...
 cross-origin/*

..restart the geoserver and it should work.