tomcat9.0配置跨域

tomcat9.0配置跨域

在web.xml添加：

<filter>
 <filter-name>ExpiresFilter</filter-name>
 <filter-class>org.apache.catalina.filters.ExpiresFilter</filter-class>
 <init-param>
 <param-name>ExpiresDefault</param-name>
 <param-value>access plus 1 month</param-value>
</init-param>

<init-param>
 <param-name>ExpiresDefault</param-name>
 <param-value>access plus 4 weeks</param-value>
</init-param>

<init-param>
 <param-name>ExpiresDefault</param-name>
 <param-value>access plus 30 days</param-value>
</init-param>
</filter>
<filter-mapping>
 <filter-name>ExpiresFilter</filter-name>
 <url-pattern>/*</url-pattern>
 <dispatcher>REQUEST</dispatcher>
</filter-mapping>

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