Tomcat服务器解决跨域问题解决方式二

第一步：

在https://mvnrepository.com上查询并下载cors-filter-1.7.jar，java-property-utils-1.9.jar这两个库文件，放到lib目录下（E:\apache-tomcat-gcxt\lib）。

第二步：在web.xml文件中添加如下配置（E:\apache-tomcat-gcxt\conf\web.xml）：

 <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>