tomcat cors跨域问题

问题遇到的现象和发生背景

打包在tomcat上vue项目工程，通过axios访问后台接口提示跨域，请问tomcat该如何配置？

问题相关代码，请勿粘贴截图

修改了conf 下web.xml的配置，但还是不行，也在lib文件里放了java-property-utils-1.9.1.jar，cors-filter-2.4.jar两个包，还是提示跨域问题.

<filter>  
       <filter-name>CORSfilter-name>
       <filter-class>com.thetransactioncompany.cors.CORSFilterfilter-class>
       <init-param>
        <param-name>cors.allowOriginparam-name>
           <param-value>*param-value>
       init-param>
       <init-param>
        <param-name>cors.supportedMethodsparam-name>
           <param-value>GET, POST, HEAD, PUT, DELETEparam-value>
       init-param>
       <init-param>
        <param-name>cors.supportedHeadersparam-name>
           <param-value>Accept, Origin, X-Requested-With, Content-Type, Last-Modifiedparam-value>
       init-param>
       <init-param>
           <param-name>cors.exposedHeadersparam-name>
           <param-value>Set-Cookieparam-value>
       init-param>
       <init-param>
           <param-name>cors.supportsCredentialsparam-name>
           <param-value>trueparam-value>
       init-param>
   filter>
 
   <filter-mapping>
       <filter-name>CORSfilter-name>
       <url-pattern>/*url-pattern>
   filter-mapping>

我想要达到的结果

没有跨域

后端代码处理跨域，不需要tomcat配置

直接代码里处理跨域吧

解决跨域问题 http://t.csdn.cn/lpWZl