diff --git a/ManagerFilter.java b/ManagerFilter.java
deleted file mode 100644
index 6e1890a..0000000
--- a/ManagerFilter.java
+++ /dev/null
@@ -1,40 +0,0 @@
-package filter;
-
-import java.io.IOException;
-
-import javax.servlet.Filter;
-import javax.servlet.FilterChain;
-import javax.servlet.FilterConfig;
-import javax.servlet.ServletException;
-import javax.servlet.ServletRequest;
-import javax.servlet.ServletResponse;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import javax.servlet.http.HttpSession;
-
-/**
- * 图书管理员过滤
- */
-public class ManagerFilter implements Filter {
-
-	public void destroy() {
-
-	}
-
-	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
-			throws IOException, ServletException {
-
-		HttpServletRequest req = (HttpServletRequest) request;
-		HttpSession session = req.getSession();
-		if (session == null || session.getAttribute("manager") == null) {
-			HttpServletResponse rep = (HttpServletResponse) response;
-			rep.sendRedirect(req.getContextPath() + "/loginManager.html");
-		}
-		chain.doFilter(request, response);
-	}
-
-	public void init(FilterConfig fConfig) throws ServletException {
-
-	}
-
-}