struts2.1与FCKEditor 上传问题完美解决(原创)

最近,遇到了这个问题,使用FckEditro上传图片时,出现了 下标越界异常。根据分析,得出结论,原来是struts2的拦截器把Fck的上传Servlet拦截了,经过了struts2对HttpServletRequest的包装,FCK已经无法正确的拿到正版的HttpServletRequest。

搜索了一下,发现不少人遇到这个问题,而解决方案是修改web.xml中

<filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>

 

 

 

 
,把其修改为: 
   

<filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*.action</url-pattern> </filter-mapping>

 

 

 

 
这样的话,隐患很大,问题很大,而且在2.1中会报错。具体不多说,上正题。

 

解决思路:就是让这个拦截器不拦截Fck的Servlet。

步骤:
1.下载struts2.1的源代码,拿出StrutsPrepareAndExecuteFilter.java ,自己在项目新建一个包,把这个类放进去。
2.修改web.xml中原来的过滤器类路径,改为自己的这个。如下:

    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>com.hs.fck.StrutsPrepareAndExecuteFilter</filter-class>
    </filter>

 

3.修改StrutsPrepareAndExecuteFilter.java,只需修改doFilter方法即可。如下:底色为绿色是修改的代码。也就是判断一下这个请求的servlet路径,如果是FCK的,就不执行包装。

public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {

  HttpServletRequest request = (HttpServletRequest) req;
        HttpServletResponse response = (HttpServletResponse) res;
        
        if(request.getServletPath().equals("/fckeditor/editor/filemanager/connectors"))
        {
            chain.doFilter(request, response);
        }else{
            
            try {
                prepare.setEncodingAndLocale(request, response);
                prepare.createActionContext(request, response);
                prepare.assignDispatcherToThread();
                if ( excludedPatterns != null && prepare.isUrlExcluded(request, excludedPatterns)) {
                    chain.doFilter(request, response);
                } else {
                    request = prepare.wrapRequest(request);
                    ActionMapping mapping = prepare.findActionMapping(request, response, true);
                    if (mapping == null) {
                        boolean handled = execute.executeStaticResourceRequest(request, response);
                        if (!handled) {
                            chain.doFilter(request, response);
                        }
                    } else {
                        execute.executeAction(request, response, mapping);
                    }
                }
            } finally {
                prepare.cleanupRequest(request);
            }
        }
}

 
如有错误,欢迎大家指正。

 

 

 

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