Redirecting the servlet output to jsp

Question

Hi i need to redirect my servlet out put to jsp
in result set's every row i have 9 columns
this result set how can i redirct to jsp
plz can any one let me know with an example
thanks a lot in advance

Answer 1

inamdar wrote:
Hi i have never used DTO's and DAO classes
plz colud u let me know without using that..Huh? It is never too late to start with it. Just create two simple classes. A DTO class is basically a simple javabean with private (encapsulated) properties and a public getter and setter for each property. A DAO class is basically a class which contains purely JDBC code.
Sample DTO:public class MyData {
    private Long id;
    private String name;
    private Integer value;
    public Long getId() { return id; }
    public String getName() { return name; }
    public Integer getValue() { return value; }
    public void setId(Long id) { this.id = id; }
    public void setName(String name) { this.name = name; }
    public void setValue(Integer value) { this.value = value; }
}Sample DAO:public class MyDataDAO {
    public List<MyData> listAll() {
        String listAllQuery = "SELECT id, name, value FROM data";
        List<MyData> myDataList = new ArrayList<MyData>();
        Connection connection = null;
        Statement statement = null;
        ResultSet resultSet = null;
        try {
            connection = getConnectionSomehow(); // DriverManager or Connection Pool, your choice.
            statement = connection.createStatement();
            resultSet = statement.executeQuery(listAllQuery);
            while(resultSet.next()) {
                MyData myData = new MyData();
                myData.setId(new Long(resultSet.getLong("id")));
                myData.setName(resultSet.getString("name"));
                myData.setValue(new Integer(resultSet.getInt("value")));
                myDataList.add(myData);
        } catch (SQLException e) {
            // Handle it. Print it, throw it, log it, mail it, your choice.
            e.printStackTrace();
        } finally {
            // You can write an utility class/method for those lines as well.
            if (resultSet != null) { try { resultSet.close(); } catch (SQLException e) { e.printStackTrace(); } }
            if (statement != null) { try { statement.close(); } catch (SQLException e) { e.printStackTrace(); } }
            if (connection != null) { try { connection.close(); } catch (SQLException e) { e.printStackTrace(); } }
        return myDataList;
}Sample Servlet code:List<MyData> myDataList = new MyDataDAO().listAll();
request.setAttribute("myDataList", myDataList);
request.getRequestDispatcher("someJspFile.jsp").forward(request, response);Sample JSTL code in someJspFile.jsp:<table>
    <c:forEach items="${myDataList}" var="myData">
        <tr>
            <td>${myData.id}</td>
            <td>${myData.name}</td>
            <td>${myData.value}</td>
        </tr>
    </c:forEach>
</table>Simple and clean, isn't it?