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我做了一个过滤器,它负责将.do
的请求,并且是首次宣布过滤器存在过滤URL效果:过滤和RequestDispatcher的改变上
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
if(! (request instanceof HttpServletRequest)){
chain.doFilter(request, response);
}
HttpServletRequest httpServletRequest = (HttpServletRequest) request;
String requestUrl = httpServletRequest.getServletPath();
if(!isBetaPathRequest(httpServletRequest) || StringUtils.contains(requestUrl,".")){
chain.doFilter(request, response);
return;
}
String newUrl = requestUrl;
int lastIndexOf = requestUrl.lastIndexOf("?");
if(lastIndexOf == -1){
if(requestUrl.charAt(requestUrl.length()-1) != '/'){
newUrl = newUrl.concat(".do");
}
}
else{
newUrl = requestUrl.substring(0, lastIndexOf-1) .concat(".do") .concat(requestUrl.substring(lastIndexOf));
}
final RequestDispatcher rq = getRequestDispatcher(request, newUrl);
rq.forward(request, response);
}
还有其他各种过滤器项目也宣告web.xml
文件,我与调试器通知他们没有运行。
当前映射一个重要滤波器是例如:
ContentResponseCachingFilter *。做
但初始传入的请求不包括在URL .do
,直到它通过BetaRewriteUrlFilter
通过。
当调用RequestDispatcher.forward时,是否应用了过滤器,还是需要手动调用它们,或者使用302重定向?