Dynamic Web Pages using JSP - Lab Deliverable 11 pdf

Use Models and ActionForms Ver 1.0 © 2005 Aptech Limited 1 Lab Deliverable 11 Using Models and ActionForms Part II 1. Write a program to input the new registration details to the Database. In addition, create a DSN to connect the JSP page to the database. Solution: The files used to run this application are: 1. index.jsp 2. details.jsp 3. Simple.jsp 4. SimpleResults.jsp 5. Signin.jsp 6. SigninFailed.jsp 7. ProcessSimpleAction.java 8. SuccessAction.java 9. SimpleActionForm.java 10.SigninActionForm.java <html> <head> <title>Marko Bank</title> </head> <body> <center><H1>Welcome to Marko Bank Home page</H1></center> <br><br><br><br><a href="prepareSimple.do">Register New user</a><br> <a href="prepareSignin.do">Sign in user</a><br> </body> </html> Enter the code in Notepad and save the file as index.jsp in %TOMCAT_HOME%/webapps/ marko. <%@ page language="java" contentType="text/html; charset=utf-8" %> <%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %> <HTML> <HEAD> <TITLE> New User Registration form</TITLE> </HEAD> <CENTER><h1>New User Registration form</h1></CENTER> <hr noshade="noshade"/> <p>Enter information into the fields below. Your entries will be displayed when you Submit the form. <br/> 2 Ver 1.0 © 2005 Aptech Limited JSP and Struts This is just to demonstrate the Struts html tags. The information that you enter is discarded.</p> <p>* = required field</p> <hr noshade="noshade"/> <html:form action="/processSimple"> <p>* Enter Username you wish to use? <br/><input type="text" name="name" size="40" maxlength="50"/></p> <p>* Enter Password:<br/><input type="password" name="password" size="40" maxlength="50"/></p> <p>Select the type of account you want to open?:<br/> <select name="accType"> <option value="savings">Savings</option> <option value="current">Current</option> </select> </p> <p><input type="checkbox" name="referral"/>Do you have a referral in this bank?</p> <p>What banking facility inspired you to open account in this bank?:<br /> <INPUT TYPE="radio" NAME="inspired" value="Phone banking">Phone banking<br> <INPUT TYPE="radio" NAME="inspired" value="ATM Card">ATM Card.<br> <INPUT TYPE="radio" NAME="inspired" value="Debit Card">Debit Card<br> <INPUT TYPE="radio" NAME="inspired" value="Online Banking">Online Banking<br> <INPUT TYPE="radio" NAME="inspired" value="All of the choices">All of the above. </p> <p>Please enter below your professional details.:<br /> <textarea name="profDetails" cols="40" rows="6"/></textarea> </p> <hr noshade="noshade" /> <p> <input type="submit" value="Submit" /> <input type="submit" value="Cancel"/> </p> </html:form> </body> </html> Enter the code in Notepad and save the file as Simple.jsp in %TOMCAT_HOME%/webapps/ marko/simple/jsp. @ page language="java" contentType="text/html; charset=utf-8" %> <%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %> Use Models and ActionForms Ver 1.0 © 2005 Aptech Limited 3 <html> <head> <title>Marko Bank Registration Confirmation</title> </head> <body> <CENTER><h1>Registration Results</h1></CENTER> <hr noshade="noshade"/> <p>Hello <bean:write name="simpleForm" property="name" />,</p> <p><strong>Your Password is :</strong> <bean:write name="simpleForm" property="password" /></p> <p><strong>Your account type is :</strong> <bean:write name="simpleForm" property="accType" /></p> <p><strong>You have a referral this is:</strong> <bean:write name="simpleForm" property="referral" /></p> <p><strong>In Marko bank you like the following:</strong> <bean:write name="simpleForm" property="inspired" /> </p> <p><strong>Your professional details are :</strong></p> <p><bean:write name="simpleForm" property="profDetails" filter="false"/></p> <p><%=request.getAttribute("message")%></p> </body> </html> Enter the code in Notepad and save the file as SimpleResults.jsp in %TOMCAT_HOME%/webapps/ marko/simple/jsp. package MARKO; import javax.servlet.http.HttpServletRequest; import org.apache.struts.action.ActionError; import org.apache.struts.action.ActionErrors; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionMapping; public class SimpleActionForm extends ActionForm { private String name = null; private String password = null; private String accType = null; private boolean referral = false; private String inspired = null; private String profDetails = null; public SimpleActionForm() 4 Ver 1.0 © 2005 Aptech Limited JSP and Struts { super(); } public void reset(ActionMapping mapping, HttpServletRequest request) { this.name = null; this.password = null; this.accType = null; this.referral = false; this.inspired = null; this.profDetails = null; } public String getName() { return name; } public String getPassword() { return password; } public String getAccType() { return accType; } public boolean getReferral() { return referral; } public String getProfDetails() { return profDetails; } public String getInspired() { return inspired; } public void setName(String name) { this.name = name; } public void setPassword(String password) { this.password = password; } public void setAccType(String accType) { this.accType = accType; } public void setReferral(boolean Referral) Use Models and ActionForms Ver 1.0 © 2005 Aptech Limited 5 { this.referral = Referral; } public void setInspired(String inspired) { this.inspired = inspired; } public void setProfDetails(String profDetails) { this.profDetails = profDetails; } } Enter the Java code in Notepad and save the file as SimpleActionForm.java. Compile the file from the command prompt and copy the class file in %TOMCAT_HOME%/webapps/marko/ WEB-INF/classes/MARKO. package MARKO; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; public class ProcessSimpleAction extends Action { public ProcessSimpleAction() { super(); } public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { if (isCancelled(request)) { return mapping.findForward("home"); } request.setAttribute("message",saveRecords(request)); return mapping.findForward("success"); } public String saveRecords(HttpServletRequest request) { String name = request.getParameter("name"); String password = request.getParameter("password"); String accType = request.getParameter("accType"); String referral = request.getParameter("referral"); 6 Ver 1.0 © 2005 Aptech Limited JSP and Struts String inspired = request.getParameter("inspired"); String profDetails = request.getParameter("profDetails"); try { //javax.sql.DataSource dataSource; //java.sql.Connection myConnection; //dataSource = getDataSource(request); //myConnection = dataSource.getConnection(); Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); java.sql.Connection connection = java.sql.DriverManager.getConnection("jdbc:odbc:userd"); java.sql.Statement statement = connection.createStatement(); String query_car = "insert into userDB values('" + name + "','" + password + "','" + accType + "','" + referral + "','" + inspired + "','" + profDetails + "')"; statement.execute(query_car); connection.close(); } catch(Exception e) { e.printStackTrace(); return "<CENTER><h3 STYLE='COLOR:RED'>Error in saving the records Please try again</h3></CENTER>"; } return "<CENTER><h3>Records Saved Sucessfullly</h3> <CENTER>"; } } Enter the Java code in Notepad and save the file as ProcessSimpleAction.java. Compile the file from the command prompt and copy the class file in %TOMCAT_HOME%/webapps/marko/ WEB-INF/classes/MARKO. Use Models and ActionForms Ver 1.0 © 2005 Aptech Limited 7 Do It Yourself 1. Consider Example 1 where the user details are stored in the database. Use the Sign in link to verify whether the user details are stored in the database. In addition, a page is displayed with username and password fields, when the user clicks the Sign in hyper link. Solution: The files used to run this application are: 1. Signin.jsp 2. SigninFailed.jsp 3. SigninActionForm.java 4. ProcessSigninAction.java <%@ page language="java" contentType="text/html; charset=utf-8" %> <%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %> <HTML> <HEAD> <TITLE> Sign in form</TITLE> </HEAD> <CENTER><h1>Sign in form </h1></CENTER> <hr noshade="noshade" /> <html:form action="/processSignin"> <p>* Enter your Username<br/><input type="text" name="name" size="40" maxlength="50"/></p> <p>* Enter Password:<br/><input type="password" name="password" size="40" maxlength="50"/></p> <hr noshade="noshade" /> <p> <input type="submit" value="Submit" /> <input type="submit" value="Cancel"/> </p> </html:form> </body> </html> Enter the code in Notepad and save the file as Signin.jsp in %TOMCAT_HOME%/webapps/ marko/simple/jsp. <html> <body> <h1><center><font color="red">Error Signing in Please go back and retry</font></center></h1> </body> </html> Enter the code in Notepad and save the file as SigninFailed.jsp in %TOMCAT_HOME%/webapps/ marko/simple/jsp. 8 Ver 1.0 © 2005 Aptech Limited JSP and Struts package MARKO; import javax.servlet.http.HttpServletRequest; import org.apache.struts.action.ActionError; import org.apache.struts.action.ActionErrors; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionMapping; public class SigninActionForm extends ActionForm { private String name = null; private String password = null; public SigninActionForm() { super(); } public void reset(ActionMapping mapping, HttpServletRequest request) { this.name = null; this.password = null; } public String getName() { return name; } public String getPassword() { return password; } public void setName(String name) { this.name = name; } public void setPassword(String password) { this.password = password; } } Enter the Java code in Notepad and save the file as SigninActionForm.java. Compile the file from the command prompt and copy the class file in %TOMCAT_HOME%/webapps/marko/ WEB-INF/classes/MARKO. package MARKO; import javax.servlet.http.HttpServletRequest; Use Models and ActionForms Ver 1.0 © 2005 Aptech Limited 9 import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; public class ProcessSigninAction extends Action { public ProcessSigninAction() { super(); } public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { if (isCancelled(request)) { return mapping.findForward("home"); } if(validateUser(request)) { return mapping.findForward("success"); } else { return mapping.findForward("faliure"); } } public boolean validateUser(HttpServletRequest request) { String name = request.getParameter("name"); String password = request.getParameter("password"); try { //javax.sql.DataSource dataSource; //java.sql.Connection myConnection; //dataSource = getDataSource(request); //myConnection = dataSource.getConnection(); Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); java.sql.Connection connection = java.sql.DriverManager.getConnection("jdbc:odbc:userd"); java.sql.Statement statement = connection.createStatement(); String query_car = "select * from userDB where name ='" + name + "' and password = '" + password + "'"; java.sql.ResultSet res = statement.executeQuery(query_car); if (res.next()) { 10 Ver 1.0 © 2005 Aptech Limited JSP and Struts connection.close(); return true; } else { connection.close(); return false; } } catch(Exception e) { e.printStackTrace(); return false; } } } Enter the Java code in Notepad and save the file as ProcessSigninAction.java. Compile the file from the command prompt and copy the class file in %TOMCAT_HOME%/webapps/marko/ WEB-INF/classes/MARKO. <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd"> <struts-config> <! == Data Source Configuration == > <data-sources> <! configuration for commons BasicDataSource > <! <data-source> <set-property property="driverClassName" value="sun.jdbc.odbc.JdbcOdbcDriver" /> <set-property property="url" value="jdbc:odbc:userd" /> <set-property property="username" value="" /> <set-property property="password" value="" /> <set-property property="maxActive" value="10" /> <set-property property="maxWait" value="5000" /> <set-property property="defaultAutoCommit" value="false" /> <set-property property="defaultReadOnly" value="false" /> <set-property property="validationQuery" value="SELECT COUNT(*) FROM market" /> </data-source> > </data-sources> <! == Form Bean Definitions == > <form-beans> [...]... path=" /jsp/ simple/Signin .jsp" /> //created in Exercise 1 LG 18 Update the struts-config.xml... //created in Exercise 1 LG 18 ... path="/prepareSimple" type="MARKO.SuccessAction"> //created in Exercise 1 LG 18 //created in Exercise 1 LG 18 Update the struts-config.xml file used in the Web application The output of the program is as shown in Figure 18.1 Use Models and ActionForms Ver 1.0 © 2005 Aptech Limited 11 . Simple .jsp in %TOMCAT_HOME%/webapps/ marko/simple /jsp. @ page language="java" contentType="text/html; charset=utf-8" %> <%@ taglib uri=" /WEB- INF/struts-bean.tld". as index .jsp in %TOMCAT_HOME%/webapps/ marko. <%@ page language="java" contentType="text/html; charset=utf-8" %> <%@ taglib uri=" /WEB- INF/struts-html.tld". files used to run this application are: 1. index .jsp 2. details .jsp 3. Simple .jsp 4. SimpleResults .jsp 5. Signin .jsp 6. SigninFailed .jsp 7. ProcessSimpleAction.java 8. SuccessAction.java