shunyang218
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这是个过滤器的内容，
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
HttpServletRequest req = (HttpServletRequest) request;
HttpServletResponse resp = (HttpServletResponse) response;
Stri ...
class EscapeUnescape{ public static String escape (String src) { int i; char j; StringBuffer tmp = new StringBuffer(); tmp.ensureCapacity(src.length()*6); for (i=0;i<src.length() ;i++ ) { j = src.charAt(i); if (Character.isDigit(j) || Character.isLowerCase(j) || Character.isUpperCase( ...