Merge pull request #346 from Mr-bingo/master

#5 提交实验代码 #63 在线考试系统
hzuapps · Nov 5, 2016 · 7abdb7e · 7abdb7e
2 parents 90db38e + 5a52d1e
commit 7abdb7e
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diff --git a/jweb/src/edu/hzu/javaweb/labs/se1414080902108/EncodingFilter.java b/jweb/src/edu/hzu/javaweb/labs/se1414080902108/EncodingFilter.java
@@ -0,0 +1,57 @@
+package edu.hzu.javaweb.labs.se1414080902108;
+
+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.annotation.WebFilter;
+
+/**
+ * Servlet Filter implementation class EncodingFilter
+ */
+@WebFilter("/1414080902108")
+public class EncodingFilter implements Filter {
+
+    /**
+     * Default constructor. 
+     */
+	private String encoding = null;   
+
+	private String getEncoding() {   
+        return this.encoding;   
+     }   
+
+    public EncodingFilter() {
+        // TODO Auto-generated constructor stub
+    }
+
+	/**
+	 * @see Filter#destroy()
+	 */
+	public void destroy() {
+		encoding = null;   
+	}
+
+	/**
+	 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
+	 */
+	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
+		 String encoding = getEncoding();   
+	        if (encoding == null){   
+	             encoding = "UTF-8";   
+	         }   
+	         request.setCharacterEncoding(encoding);
+	         chain.doFilter(request, response);   
+	}
+
+	/**
+	 * @see Filter#init(FilterConfig)
+	 */
+	public void init(FilterConfig fConfig) throws ServletException {
+		this.encoding = fConfig.getInitParameter("encoding");   
+	}
+
+}
diff --git a/jweb/src/edu/hzu/javaweb/labs/se1414080902108/SecurityFilter.java b/jweb/src/edu/hzu/javaweb/labs/se1414080902108/SecurityFilter.java
@@ -0,0 +1,79 @@
+package edu.hzu.javaweb.labs.se1414080902108;
+
+import java.io.IOException;
+
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.FilterConfig;
+import javax.servlet.RequestDispatcher;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+import javax.servlet.annotation.WebFilter;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+
+/**
+ * Servlet Filter implementation class SecurityFilter
+ */
+@WebFilter("/1414080902108")
+public class SecurityFilter implements Filter {
+
+    /**
+     * Default constructor. 
+     */
+    public SecurityFilter() {
+        // TODO Auto-generated constructor stub
+    }
+
+	/**
+	 * @see Filter#destroy()
+	 */
+	public void destroy() {
+		// TODO Auto-generated method stub
+	}
+
+	/**
+	 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
+	 */
+	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
+		HttpServletRequest req = (HttpServletRequest) request;   
+	    HttpServletResponse res = (HttpServletResponse) response;   
+	    HttpSession session = req.getSession();
+	    String servletPath = req.getServletPath();
+	    String flag = (String) session.getAttribute("flag");
+
+	    if(servletPath !=null && (servletPath.equals("/login.jsp")) || 
+	    		(servletPath.equals("/index.jsp")) || (servletPath.equals("/loginSe1414080902108")) ||
+	    		(servletPath.equals("/sign_up.jsp"))){
+	    	chain.doFilter(request, response);  
+	    }else{
+	    	if(flag != null && flag.equals("login_success")){
+	    		chain.doFilter(request, response);  
+	    	}else if(flag != null && flag.equals("login_error")){
+	    		req.setAttribute("msg", "登录失败");
+	    		req.setAttribute("return_uri", servletPath);
+	    		RequestDispatcher rd = null;
+	    		rd = request.getRequestDispatcher("/sign.jsp");
+				rd.forward(request, response);
+	    	}else{
+	    		req.setAttribute("msg", "尚未登录");
+	    		req.setAttribute("return_uri", servletPath);
+	    		RequestDispatcher rd = null;
+	    		rd = request.getRequestDispatcher("/sign.jsp");
+				rd.forward(request, response);
+	    	}
+	    }
+
+
+	}
+
+	/**
+	 * @see Filter#init(FilterConfig)
+	 */
+	public void init(FilterConfig fConfig) throws ServletException {
+		// TODO Auto-generated method stub
+	}
+
+}
diff --git a/jweb/src/edu/hzu/javaweb/labs/se1414080902108/loginSe1414080902108.java b/jweb/src/edu/hzu/javaweb/labs/se1414080902108/loginSe1414080902108.java
@@ -0,0 +1,58 @@
+package edu.hzu.javaweb.labs.se1414080902108;
+
+import java.io.IOException;
+
+import javax.servlet.RequestDispatcher;
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+/**
+ * Servlet implementation class loginSe1414080902108
+ */
+@WebServlet("/1414080902108")
+public class loginSe1414080902108 extends HttpServlet {
+	private static final long serialVersionUID = 1L;
+
+    /**
+     * @see HttpServlet#HttpServlet()
+     */
+    public loginSe1414080902108() {
+        super();
+        // TODO Auto-generated constructor stub
+    }
+
+	/**
+	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
+	 */
+	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+		doPost(request,response);
+	}
+
+	/**
+	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
+	 */
+	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+		String username = request.getParameter("userName");
+		String password = request.getParameter("password");
+		String returnUri = request.getParameter("return_uri");
+		RequestDispatcher rd = null;
+		if(username == "" || password == ""){
+			request.setAttribute("msg", "用户名或者密码为空！！！");
+			rd = request.getRequestDispatcher("/sign_up.jsp");
+			rd.forward(request, response);
+		}else{
+			request.getSession().setAttribute("flag", "login_success");
+			if(returnUri != null){
+				rd = request.getRequestDispatcher(returnUri);
+				rd.forward(request, response);
+			}else{
+				rd = request.getRequestDispatcher("/index.jsp");
+				rd.forward(request, response);
+			}
+		}
+	}
+
+}
diff --git a/jweb/src/edu/hzu/javaweb/labs/se1414080902108/logoutSe1414080902108.java b/jweb/src/edu/hzu/javaweb/labs/se1414080902108/logoutSe1414080902108.java
@@ -0,0 +1,40 @@
+package edu.hzu.javaweb.labs.se1414080902108;
+
+import java.io.IOException;
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+/**
+ * Servlet implementation class logoutSe1414080902108
+ */
+@WebServlet("/Se1414080902108")
+public class logoutSe1414080902108 extends HttpServlet {
+	private static final long serialVersionUID = 1L;
+
+    /**
+     * @see HttpServlet#HttpServlet()
+     */
+    public logoutSe1414080902108() {
+        super();
+        // TODO Auto-generated constructor stub
+    }
+
+	/**
+	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
+	 */
+	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+		doPost(request,response);
+	}
+
+	/**
+	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
+	 */
+	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+		request.getSession().invalidate();
+		response.sendRedirect(request.getContextPath() + "/index.jsp");
+	}
+
+}