http://ibleave60.blog.51cto.com/2669415/1208652
http://enable-cors.org/server.html
下载cors-filter-1.7.jar，java-property-utils-1.9.jar这两个库文件，放到lib目录下。（可在http://search.maven.org上查询并下载。）工程项目中web.xml中的配置如下：
<param-name>cors.allowOrigin</param-name>
<param-value>这里可以不写* 可以指定站点域名 http://192.168.1.102</param-value>
<!--
实现跨域
-->
<
filter
>
<
filter-name
>
CORS
</
filter-name
>
<
filter-class
>
com.thetransactioncompany.cors.CORSFilter
</
filter-class
>
<
init-param
>
<
param-name
>
cors.allowOrigin
</
param-name
>
<
param-value
>
*
</
param-value
>
</
init-param
>
<
init-param
>
<
param-name
>
cors.supportedMethods
</
param-name
>
<
param-value
>
GET, POST, HEAD, PUT, DELETE
</
param-value
>
</
init-param
>
<
init-param
>
<
param-name
>
cors.supportedHeaders
</
param-name
>
<
param-value
>
Accept, Origin, X-Requested-With, Content-Type, Last-Modified
</
param-value
>
</
init-param
>
<
init-param
>
<
param-name
>
cors.exposedHeaders
</
param-name
>
<
param-value
>
Set-Cookie
</
param-value
>
</
init-param
>
<
init-param
>
<
param-name
>
cors.supportsCredentials
</
param-name
>
<
param-value
>
true
</
param-value
>
</
init-param
>
</
filter
>
<
filter-mapping
>
<
filter-name
>
CORS
</
filter-name
>
<
url-pattern
>
/*
</
url-pattern
>
</
filter-mapping
>
