Merge pull request #2 from hzuapps/master

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hzuapps · Nov 3, 2016 · 33c6d56 · 33c6d56
2 parents 4d1c827 + b4fec09
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diff --git a/README.md b/README.md
@@ -3,6 +3,12 @@
 
 # 实验一：Web基础
 https://github.com/hzuapps/java-web/issues/2
+# 实验二：Tomcat基础
+https://github.com/hzuapps/java-web/issues/3
+# 实验三：Servlet基础
+https://github.com/hzuapps/java-web/issues/4
+# 实验四：Filter基础
+https://github.com/hzuapps/java-web/issues/5
 
 # 参考资料
 

diff --git a/jweb/build/classes/edu/hzu/javaweb/bean/UserData.class b/jweb/build/classes/edu/hzu/javaweb/bean/UserData.class
diff --git a/jweb/build/classes/edu/hzu/javaweb/labs/package-info.class b/jweb/build/classes/edu/hzu/javaweb/labs/package-info.class
diff --git a/jweb/build/classes/edu/hzu/javaweb/labs/se12345678/Se12345678Servlet.class b/jweb/build/classes/edu/hzu/javaweb/labs/se12345678/Se12345678Servlet.class
diff --git a/jweb/build/classes/edu/hzu/javaweb/labs/se12345678/package-info.class b/jweb/build/classes/edu/hzu/javaweb/labs/se12345678/package-info.class
diff --git a/jweb/build/classes/edu/hzu/javaweb/servlet/FirstServlet.class b/jweb/build/classes/edu/hzu/javaweb/servlet/FirstServlet.class
diff --git a/jweb/src/edu/hzu/javaweb/bean/UserData.java b/jweb/src/edu/hzu/javaweb/bean/UserData.java
@@ -0,0 +1,38 @@
+/**
+ * 
+ */
+package edu.hzu.javaweb.bean;
+
+/**
+ * @author zengsn
+ * @since 8.0
+ */
+public class UserData {
+	private String username;
+	private String email;
+	private int age;
+
+	public void setUsername(String value) {
+		username = value;
+	}
+
+	public void setEmail(String value) {
+		email = value;
+	}
+
+	public void setAge(int value) {
+		age = value;
+	}
+
+	public String getUsername() {
+		return username;
+	}
+
+	public String getEmail() {
+		return email;
+	}
+
+	public int getAge() {
+		return age;
+	}
+}
diff --git a/jweb/src/edu/hzu/javaweb/labs/package-info.java b/jweb/src/edu/hzu/javaweb/labs/package-info.java
@@ -0,0 +1,7 @@
+/**
+ * 这里为实验的Java代码。各人的代码放在各自学号的包下。
+ * 
+ * @author zengsn
+ * @since 8.0
+ */
+package edu.hzu.javaweb.labs;
diff --git a/jweb/src/edu/hzu/javaweb/labs/se12345678/Se12345678Servlet.java b/jweb/src/edu/hzu/javaweb/labs/se12345678/Se12345678Servlet.java
@@ -0,0 +1,57 @@
+package edu.hzu.javaweb.labs.se12345678;
+
+import java.io.IOException;
+import javax.servlet.ServletConfig;
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+
+@WebServlet("/1st")
+public class Se12345678Servlet extends HttpServlet {
+	private static final long serialVersionUID = 1L;
+
+	public Se12345678Servlet() {
+		super();
+	}
+
+	public void init(ServletConfig config) throws ServletException {
+
+	}
+
+	public void destroy() {
+	}
+
+	protected void doGet(HttpServletRequest request, HttpServletResponse response)
+			throws ServletException, IOException {
+		// 已登录
+		String login = "zhang3";
+		// Session
+		HttpSession session = request.getSession(true);
+		session.setAttribute("username", login); // 登录之后
+		String username = (String) session.getAttribute("username");
+		if (username == null) {
+
+		}
+
+		session.setMaxInactiveInterval(15);
+
+		// 返回HTML
+		StringBuilder html = new StringBuilder();
+		html.append("<!DOCTYPE html><html><head>");
+		html.append("<title>First App</title>");
+		html.append("</head><body>");
+		html.append("<a id=\"link\" href=\"www.hzu.edu.cn\">惠州学院</a>");
+		html.append("</body></html>");
+		response.setCharacterEncoding("utf-8");
+		response.getWriter().append(html);
+	}
+
+	protected void doPost(HttpServletRequest request, HttpServletResponse response)
+			throws ServletException, IOException {
+		doGet(request, response);
+	}
+
+}
diff --git a/jweb/src/edu/hzu/javaweb/labs/se12345678/package-info.java b/jweb/src/edu/hzu/javaweb/labs/se12345678/package-info.java
@@ -0,0 +1,8 @@
+
+/**
+ * 把 12345678 即为学号。
+ * 
+ * @author zengsn
+ * @since 8.0
+ */
+package edu.hzu.javaweb.labs.se12345678;
diff --git a/jweb/src/edu/hzu/javaweb/labs/se1406070302213/Se1406070302213Servlet.java b/jweb/src/edu/hzu/javaweb/labs/se1406070302213/Se1406070302213Servlet.java
@@ -0,0 +1,91 @@
+package edu.hzu.javaweb.labs.se1406070302213;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+public class Se1406070302213Servlet extends HttpServlet {
+
+	/**
+		 * Constructor of the object.
+		 */
+	public Se1406070302213Servlet() {
+		super();
+	}
+
+	/**
+		 * Destruction of the servlet. <br>
+		 */
+	public void destroy() {
+		super.destroy(); // Just puts "destroy" string in log
+		// Put your code here
+	}
+
+	/**
+		 * The doGet method of the servlet. <br>
+		 *
+		 * This method is called when a form has its tag value method equals to get.
+		 * 
+		 * @param request the request send by the client to the server
+		 * @param response the response send by the server to the client
+		 * @throws ServletException if an error occurred
+		 * @throws IOException if an error occurred
+		 */
+	public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+		response.setContentType("text/html");
+		PrintWriter out = response.getWriter();
+		out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
+		out.println("<HTML>");
+		out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
+		out.println("  <BODY>");
+		out.println("  Hello!Mr Zeng!");
+		out.println("  <br>");
+		out.println("  My student number is 1406070302213.Thanks!");
+		out.println("  </BODY>");
+		out.println("</HTML>");
+		out.flush();
+		out.close();
+	}
+
+	/**
+		 * The doPost method of the servlet. <br>
+		 *
+		 * This method is called when a form has its tag value method equals to post.
+		 * 
+		 * @param request the request send by the client to the server
+		 * @param response the response send by the server to the client
+		 * @throws ServletException if an error occurred
+		 * @throws IOException if an error occurred
+		 */
+	public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+		response.setContentType("text/html");
+		PrintWriter out = response.getWriter();
+		out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
+		out.println("<HTML>");
+		out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
+		out.println("  <BODY>");
+		out.println("  Hello!Mr Zeng!");
+		out.println("  <br>");
+		out.println("  My student number is 1406070302213.Thanks!");
+		out.println("  </BODY>");
+		out.println("</HTML>");
+		out.flush();
+		out.close();
+	}
+
+	/**
+		 * Initialization of the servlet. <br>
+		 *
+		 * @throws ServletException if an error occurs
+		 */
+	public void init() throws ServletException {
+		// Put your code here
+	}
+
+}
diff --git a/jweb/src/edu/hzu/javaweb/labs/se1414080902108/Se1414080902108Servlet.java b/jweb/src/edu/hzu/javaweb/labs/se1414080902108/Se1414080902108Servlet.java
@@ -0,0 +1,61 @@
+package edu.hzu.javaweb.labs.se1414080902108;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+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 Se1414080902108Servlet
+ */
+@WebServlet("/1414080902108")
+public class Se1414080902108Servlet extends HttpServlet {
+	private static final long serialVersionUID = 1L;
+
+    /**
+     * @see HttpServlet#HttpServlet()
+     */
+    public Se1414080902108Servlet() {
+        super();
+        // TODO Auto-generated constructor stub
+    }
+
+	/**
+	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
+	 */
+	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+		// TODO Auto-generated method stub
+
+	}
+
+	/**
+	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
+	 */
+	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+		// TODO Auto-generated method stub
+		String subject = request.getParameter("subject");
+		String question = request.getParameter("question");
+		String answer1 = request.getParameter("answer1");
+		String answer2 = request.getParameter("answer2");
+		String answer3 = request.getParameter("answer3");
+		String answer4 = request.getParameter("answer4");
+		String answer = request.getParameter("answer");
+		String info = "保存成功";
+
+
+		request.setAttribute("Message", info);
+		request.setAttribute("subject", subject);
+		request.setAttribute("question", question);
+		request.setAttribute("answer1", answer1);
+		request.setAttribute("answer2", answer2);
+		request.setAttribute("answer3", answer3);
+		request.setAttribute("answer4", answer4);
+		request.setAttribute("answer", answer);
+		request.getRequestDispatcher("/show.jsp").forward(request, response);
+	}
+
+}
diff --git a/jweb/src/edu/hzu/javaweb/labs/se1414080902110/EncodingFilter.java b/jweb/src/edu/hzu/javaweb/labs/se1414080902110/EncodingFilter.java
@@ -0,0 +1,33 @@
+package edu.hzu.javaweb.labs.se1414080902110;
+
+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;
+
+@WebFilter(filterName = "EncodingFilter", urlPatterns = "/*")
+public class EncodingFilter implements Filter {
+
+	@Override
+	public void destroy() {
+		// TODO Auto-generated method stub
+	}
+
+	@Override
+	public void doFilter(ServletRequest request, ServletResponse response,
+			FilterChain chain) throws IOException, ServletException {
+		request.setCharacterEncoding("UTF-8");
+		response.setCharacterEncoding("UTF-8");
+		chain.doFilter(request, response);
+	}
+
+	@Override
+	public void init(FilterConfig filterConfig) throws ServletException {
+		// TODO Auto-generated method stub
+	}
+}
diff --git a/jweb/src/edu/hzu/javaweb/labs/se1414080902110/JDBCconnection.java b/jweb/src/edu/hzu/javaweb/labs/se1414080902110/JDBCconnection.java
@@ -0,0 +1,28 @@
+package edu.hzu.javaweb.labs.se1414080902110;
+
+import java.sql.*;
+
+public class JDBCconnection {
+	public Connection connection() {
+		String driverName = "com.mysql.jdbc.Driver";
+		String userName = "root";
+		String userpwd = "123456";
+		String dbName = "musicforum";
+		String url1 = "jdbc:mysql://localhost:3306/" + dbName;
+		String url2 = "?user=" + userName + "&password=" + userpwd;
+		String url3 = "&useUnicode=true&characterEncoding=UTF-8";
+		String url = url1 + url2 + url3;
+		try {
+			Class.forName(driverName);
+		} catch (ClassNotFoundException driver) {
+			driver.printStackTrace();
+		}
+		try {
+			Connection connection = DriverManager.getConnection(url);
+			return connection;
+		} catch (SQLException sql) {
+			sql.printStackTrace();
+		}
+		return null;
+	}
+}
diff --git a/jweb/src/edu/hzu/javaweb/labs/se1414080902110/LoginFilter.java b/jweb/src/edu/hzu/javaweb/labs/se1414080902110/LoginFilter.java
@@ -0,0 +1,45 @@
+package edu.hzu.javaweb.labs.se1414080902110;
+
+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;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+
+@WebFilter(filterName = "LoginFilter", urlPatterns = "/essay/*")
+public class LoginFilter implements Filter {
+
+	@Override
+	public void destroy() {
+		// TODO Auto-generated method stub
+
+	}
+
+	@Override
+	public void doFilter(ServletRequest request, ServletResponse response,
+			FilterChain chain) throws IOException, ServletException {
+		HttpServletRequest req = (HttpServletRequest) request;
+		HttpServletResponse res = (HttpServletResponse) response;
+
+		HttpSession session = req.getSession();
+		if (session.getAttribute("loginUserAccount") != null) {
+			chain.doFilter(request, response);
+		} else {
+			res.sendRedirect("../error.jsp");
+		}
+	}
+
+	@Override
+	public void init(FilterConfig filterConfig) throws ServletException {
+		// TODO Auto-generated method stub
+
+	}
+
+}