添加身份过滤器AuthFilter

ffdy · ffdy · commit ad3d4c889dbf · 2021-12-07T20:03:27.000+08:00
diff --git a/src/main/java/cn/edu/swu/ffdy/JavaWeb/Filters/AuthFilter.java b/src/main/java/cn/edu/swu/ffdy/JavaWeb/Filters/AuthFilter.java
@@ -0,0 +1,27 @@
+package cn.edu.swu.ffdy.JavaWeb.Filters;
+
+import cn.edu.swu.ffdy.JavaWeb.Utils.SessionContext;
+
+import javax.servlet.FilterChain;
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebFilter;
+import javax.servlet.http.HttpFilter;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+import java.io.IOException;
+
+@WebFilter(urlPatterns = "/admin/*")
+public class AuthFilter extends HttpFilter {
+    public void doFilter(HttpServletRequest request, HttpServletResponse response, FilterChain chain)
+        throws IOException, ServletException {
+        HttpSession session = request.getSession(true);
+        Boolean isLogin = (Boolean) session.getAttribute(SessionContext.LOGIN_STATUS);
+
+        if(isLogin == null || isLogin.equals(Boolean.FALSE)) {
+            response.sendRedirect("/login.html");
+        } else {
+            chain.doFilter(request, response);
+        }
+    }
+}
