login parcial

.idea/encodings.xml

@@ -2,5 +2,6 @@
 <project version="4">
   <component name="Encoding">
     <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
   </component>
 </project>
\ No newline at end of file

src/main/java/com/roshka/proyectofinal/entity/LoginBean.java

+package com.roshka.proyectofinal.entity;
+
+public class LoginBean {
+    private String username;
+    private String password;
+
+    public String getUsername() {
+        return username;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+}

src/main/java/com/roshka/proyectofinal/login/LoginDao.java

+package com.roshka.proyectofinal.login;
+
+import com.roshka.proyectofinal.DataBase;
+import com.roshka.proyectofinal.entity.Lenguaje;
+import com.roshka.proyectofinal.entity.LoginBean;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+
+public class LoginDao {
+
+    public boolean validate (LoginBean loginBean) {
+        int status = 0;
+        try {
+            Connection con = DataBase.getConnection();
+
+            PreparedStatement ps=con.prepareStatement(
+                    "select * from usuarios where username=? and password = ?");
+            ps.setString(1,loginBean.getUsername());
+            ps.setString(2, loginBean.getPassword());
+            status=ps.executeUpdate();
+
+            con.close();
+        } catch (Exception ex) {
+            ex.printStackTrace();
+        }
+
+        if (status > 0) return true ;
+        else return false ;
+
+    }
+
+}

src/main/java/com/roshka/proyectofinal/login/LoginServlet.java

+package com.roshka.proyectofinal.login;
+
+
+import java.io.IOException;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.annotation.WebServlet;
+import jakarta.servlet.http.HttpServlet;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+
+import com.roshka.proyectofinal.entity.LoginBean;
+
+/**
+ * Servlet implementation class LoginServlet
+ */
+@WebServlet("/login")
+public class LoginServlet extends HttpServlet {
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * @see HttpServlet#HttpServlet()
+     */
+    public LoginServlet() {
+        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
+        response.getWriter().append("Served at: ").append(request.getContextPath());
+    }
+
+    /**
+     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
+     */
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        LoginDao loginDao = new LoginDao();
+
+        String username = request.getParameter("username");
+        String password = request.getParameter("password");
+        LoginBean loginBean = new LoginBean();
+        loginBean.setUsername(username);
+        loginBean.setPassword(password);
+
+
+        if (loginDao.validate(loginBean))
+        {
+            response.sendRedirect("loginSuccess.jsp");
+
+        }
+        else {
+            //HttpSession session = request.getSession();
+            response.sendRedirect("login.jsp");
+
+        }
+    }
+
+}
\ No newline at end of file

src/main/webapp/login.jsp

@@ -11,7 +11,7 @@
         <table>
             <tr><td>User Name:</td> <td><input type="text" name = "username"></td></tr>
             <tr><td>Password:</td><td><input type="password" name="password"></td></tr>
-            <tr><td></td> <td></td><input type="sumbmit" value="Login"></td></tr>
+            <tr><td><input type="submit" value="Login"/></td></tr>
 
         </table>
     </form>