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JSP Paging Example in Datagrid

In this section, we have developed a web application to create paging in JSP.

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JSP Paging Example in Datagrid

     

In this section, we have developed a web application to create paging in JSP. Two files are used "paging.jsp" and "Employee.java" in the code given below.

Brief description of the flow of application :

1). Create a web page "paging.jsp" to display the record.

2). Include the commons-math-1.0-dev.jar, taglibs-datagrid.jar, mysql-connector-java-3.1.6-bin.jar and jstl.jar  in the lib directory.

3).To create a Java Bean file "Employee.java" in the package "emp".

4).  Import all the packages on the "paging.jsp".
<%@ page import="java.util.*"%>
<%@ page import="org.apache.taglibs.datagrid.DataGridParameters"%> 
<%@ page import="java.sql.*"%>
<%@ page import="emp.*"%>
<%@ taglib uri="http://jakarta.apache.org/taglibs/datagrid-1.0" prefix="ui" %>
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jstl/fmt" prefix="fmt" %>

5). Create arraylist "empList"  to add the Employee object  record.
  ArrayList empList = new ArrayList ();

6). Using  the Taglib to create paging and show records.

Step:1 To create a "register" table in Database 

create table `register` (
`username` varchar (100),
`password` varchar (100),
`firstname` varchar (100),
`lastname` varchar (100),
`email` varchar (100),
`country` varchar (100)
); 

Step:2 To create a web page  "paging.jsp"  

<%@ page contentType="text/html"%>

<%@ page import="java.util.*"%>

<%@ page import="org.apache.taglibs.datagrid.DataGridParameters"%> 

<%@ page import="java.sql.*"%>

<%@ page import="emp.*"%>

<%@ taglib uri="http://jakarta.apache.org/taglibs/datagrid-1.0" prefix="ui" %>

<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>

<%@ taglib uri="http://java.sun.com/jstl/fmt" prefix="fmt" %>



<html>

<head>

<title>jsp paging example in datagrid</title>

<style>

th a:link { text-decoration: none; color: black }

th a:visited { text-decoration: none; color: black }

.rows { background-color: white }

.hiliterows { background-color: pink; color: #000000; font-weight: bold }

.alternaterows { background-color: #efefef }

.header { background-color: cyan; color: #000000;font-weight: bold }



.datagrid { border: 1px solid #C7C5B2; font-family: arial; font-size: 9pt;

font-weight: normal }

</style>

</head>

<body>

<br><br>



<span align="center" style="padding-left:250px;font-size:20px;">Employee Records</span>

<br>

<% ArrayList empList = new ArrayList ();

Employee empObj;

int fromIndex, toIndex;

int tcount =0;

int perpage=4;

int tpage=0;

try {

String connectionURL = "jdbc:mysql://localhost:3306/user_register";

Connection connection = null;

Statement statement = null;

ResultSet rs = null;

Class.forName("com.mysql.jdbc.Driver").newInstance();

connection = DriverManager.getConnection(connectionURL, "root", "root");

statement = connection.createStatement();

String QueryString = "SELECT * from register";

rs = statement.executeQuery(QueryString);

while (rs.next()) { 

tcount++;

empObj = new Employee ();

empObj.setFirstName(rs.getString("firstname"));

empObj.setLastName(rs.getString("lastname"));

empObj.setUsername(rs.getString("username"));

empObj.setEmail(rs.getString("email"));

empObj.setCountry(rs.getString("country"));

empList.add(empObj);

}



rs.close();

statement.close();

connection.close();

} 

catch (Exception ex) {

System.out.println("Unable to connect to batabase."+ex);

}

fromIndex = (int) DataGridParameters.getDataGridPageIndex (request, "datagrid1");

if ((toIndex = fromIndex+4) >= empList.size ())

toIndex = empList.size();

request.setAttribute ("empList", empList.subList(fromIndex, toIndex));





pageContext.setAttribute("tCount", tcount);

%>



<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">



<ui:dataGrid items="${empList}" var="employee" name="datagrid1" cellPadding="0" 

cellSpacing="0" styleClass="datagrid" >

<columns>



<column width="50">

<header value="" hAlign="left" styleClass="header"/>



</column>



<column width="200">

<header value="Name" hAlign="left" styleClass="header"/>

<item value="${employee.firstName} ${employee.lastName}" hAlign="left" 

styleClass="item"/>





</column>

<column width="200">

<header value="Username" hAlign="left" styleClass="header"/>

<item value="${employee.username}" hAlign="left" styleClass="item"/>





</column>

<column width="200">

<header value="Email" hAlign="left" styleClass="header"/>

<item value="${employee.email}" hAlign="left" styleClass="item"/>



</column>



<column width="100">

<header value="Country" hAlign="left" styleClass="header"/>

<item value="${employee.country}" hAlign="left" styleClass="item"/>



</column>



</columns>

<rows styleClass="rows" hiliteStyleClass="hiliterows"/>

<alternateRows styleClass="alternaterows"/>



<paging size="4" count="${tCount}" custom="true" nextUrlVar="next" 

previousUrlVar="previous" pagesVar="pages"/>

<order imgAsc="up.gif" imgDesc="down.gif"/>

</ui:dataGrid>

<table width="750" style="font-family: arial; font-size: 10pt" border=0>



<tr>

<td align="left" width="33%">

<c:if test="${previous != null}">

<a href="<c:out value="${previous}"/>">Previous</a>

</c:if>&nbsp;

</td>

<td align="center" width="33%">

<c:forEach items="${pages}" var="page">

<c:choose>

<c:when test="${page.current}">

<b><a href="<c:out value="${page.url}"/>"><c:out value="${page.index}"/></a></b>

</c:when>

<c:otherwise>

<a href="<c:out value="${page.url}"/>"><c:out value="${page.index}"/></a>

</c:otherwise>

</c:choose>

</c:forEach>

</td>

<td align="right" width="33%">&nbsp;

<c:if test="${next != null}">

<a href="<c:out value="${next}"/>">Next</a>

</c:if>

</td>

</tr>

</table>

</body>

</html>

 Step:3 To create a "Employee.java" 

package emp;
public class Employee {

  protected String firstName;
  protected String lastName;
  protected String username;
  protected String email;
  protected String country;
  

  public String getFirstName () {
  return (firstName);
  }
  public String getLastName (){
  return (lastName);
  }  
  public String getUsername () {
  return (username);
  }  
  public String getEmail() {
  return (email);
  }
  
  public String getState () {
  return (email);
  } 
  
  public String getCountry () {
  return (country);
  }  

  public void setFirstName (String newFirstName)
 {
  firstName = newFirstName;
  }
  public void setLastName (String newLastName)
  {
  lastName = newLastName;
  }

 public void setUsername (String newUsername)
 {
  username = newUsername;
  }

  public void setEmail (String newEmail)
  {
  email = newEmail;
  } 
  
  public void setCountry(String newCountry)
  {
  country = newCountry;
  } 


  }


Output:

Display records of first page.


Display the Second or Next page.

To navigate first page click on the  "Previous" or "1".

Download the application

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Comments:5
rameez
July 11, 2011
problem

i am not able to execute this i am using oracle...i change these things still not able...can u help me???????
Diego
August 15, 2011
error

hi! hope someone helps me! I get the error: according to TDL or attribute directive in tag file, attribute items does not accept any expressions right around line 75 in the .jsp page where it says <ui:dataGrid item... > right there! please I have tomcat 6.0.32, servlet engine: 2.5; jsp engine: 2.1
Shahid
April 6, 2012
Giving Error

According to TLD or attribute directive in tag file, attribute items does not accept any expressions This error shows on: <ui:dataGrid items="${empList}" var="employee" name="datagrid1" cellPadding="0" cellSpacing="0" styleClass="datagrid" >
vishi
June 16, 2012
jsp pagination

This example is a crap id dosent work
Manju
August 9, 2012
Datagrid Deprecated

org.apache.taglibs.datagrid.DataGridParameters has been deprecated and does not work anymore.

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