liferay hook xml 可以包含 2 个 servlet-filter 配置吗？

Question

我已经使用给定的 xml 在 liferay 中创建了一个钩子

<?xml version="1.0"?>
<!DOCTYPE hook PUBLIC "-//Liferay//DTD Hook 7.2.0//EN" "http://www.liferay.com/dtd/liferay-hook_7_2_0.dtd">

<hook> 
     <servlet-filter>
        <servlet-filter-name>Servlet Request Filter</servlet-filter-name>
        <servlet-filter-impl>package.SecurityFilters</servlet-filter-impl> 
    </servlet-filter>
    
    <servlet-filter-mapping>
        <servlet-filter-name>Servlet Request Filter</servlet-filter-name>       
        <url-pattern>/*</url-pattern>       
        <dispatcher>REQUEST</dispatcher> 
    </servlet-filter-mapping>
 
    <servlet-filter>
        <servlet-filter-name>Servlet Request DocumentDownloadFilter</servlet-filter-name>
        <servlet-filter-impl>package.DocumentDownloadFilter</servlet-filter-impl>
    </servlet-filter>

    <servlet-filter-mapping>
        <servlet-filter-name>Servlet Request DocumentDownloadFilter</servlet-filter-name>
        <url-pattern>/documents/*</url-pattern>
        <dispatcher>REQUEST</dispatcher> 
    </servlet-filter-mapping>
</hook>

部署此挂钩后，我看到此异常：

The content of element type "hook" must match "(portal-properties?,language-properties*,custom-jsp-dir?,custom-jsp-global?,indexer-post-processor*,service*,servlet-filter*,servlet-filter-mapping*,struts-action*)".

如果我注释掉一个或另一个 servlet 配置，则挂钩部署正确，并且我可以在日志中看到过滤器正在工作。 从 DTD 中我了解到我应该能够放置许多 servlet-filter 和 servlet-filter-mapping，所以我不确定我在哪里犯了错误。 DTD 文档

If an element name in DTD is followed by the star [*], this element can occur zero, once or several times.

是否可以在一个 liferay hook 中创建 2 个 servlet 过滤器？

Answer 1

根据 DTD，您使用的是 Liferay 7.2 - 考虑忽略 6.x 挂钩概念并使用 OSGi ServletFilter：

@Component(
        immediate = true,
        property = {
                "before-filter=Auto Login Filter",
                "dispatcher=REQUEST",
                "servlet-context-name=",
                "servlet-filter-name=My Servlet Filter",
                "url-pattern=/change/me"
        },
        service = Filter.class
)
public class BladeServletFilter extends BaseFilter {

    @Override
    protected void processFilter(
            HttpServletRequest httpServletRequest,
            HttpServletResponse httpServletResponse, FilterChain filterChain)
        throws Exception {

        // implement your own logic here
    }
}