Tomcat下 解决Ajax请求跨域的问题

在项目中引用cors-filter-1.5.0.1.jar和java-property-utils-1.9.1.jar两个jar包

在WEB-INF下的web.xml中加入下面代码：

<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>

重启Tomcat即可