Servlet: Print Table : HTML Output « Servlets « Java

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Java » Servlets » HTML OutputScreenshots 
Servlet: Print Table
   
  /*    <servlet>
        <servlet-name>PrintTable</servlet-name>
        <servlet-class>PrintTable</servlet-class>
    </servlet>

    <servlet-mapping>
        <servlet-name>PrintTable</servlet-name>
        <url-pattern>/PrintTable</url-pattern>
    </servlet-mapping>

*/
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Vector;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class PrintTable extends HttpServlet {

  public void doGet(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {

    printTable(request, response);
  }

  public void doPost(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {

    printTable(request, response);

  }

  public void printTable(HttpServletRequest request,
      HttpServletResponse responsethrows IOException {

    response.setContentType("text/html");
    PrintWriter out = response.getWriter();

    HtmlUtils hu = new HtmlUtils();

    out.print(hu.createHtmlHeader("Print Table"));

    out.print(hu.getTableHead("center"1));

    out.print(hu.getTH("center""First Name"));
    out.print(hu.getTH("center""Last Name"));
    out.print(hu.getTH("center""Favorite Color"));
    out.print(hu.getTH("center""Gender"));

    Vector av = new Vector();

    av.addElement("John");
    av.addElement("Sample");
    av.addElement("Purple");
    av.addElement("Male");

    av.addElement("Joe");
    av.addElement("Bloggs");

    av.addElement("Green");
    av.addElement("Male");

    av.addElement("Fanny");
    av.addElement("May");
    av.addElement("Blue");
    av.addElement("Female");

    av.addElement("Joeline");
    av.addElement("Bloggs");
    av.addElement("Red");
    av.addElement("Female");

    out.print(hu.getTableContents("center", av, 4));
    out.print(hu.getHtmlFooter());

  }
}
class HtmlUtils {

  public String createHtmlHeader(String title) {

    String htmlHeader = null;
    htmlHeader = "<HTML><HEAD><TITLE> " + title + " </TITLE></HEAD><BODY>";
    return htmlHeader;
  }

  public String getHtmlFooter() {

    String htmlFooter = "</BODY></HTML>";
    return htmlFooter;
  }

  public String getHead(int level, String heading) {
    return "<H" + level + "> " + heading + "</H" + level + ">";
  }

  public String getTableHead(String align, int border) {

    String tableHeader = null;
    tableHeader = "<TABLE align=" + align + " border=" + border + ">";
    return tableHeader;

  }

  public String getTR(String align) {
    String TRCell = null;
    TRCell = "<TR align=" + align + ">";
    return TRCell;
  }

  public String getTR() {
    String TRCell = null;
    TRCell = "<TR>";
    return TRCell;
  }

  public String getTD(String align, String value) {
    String TDCell = null;
    TDCell = "<TD align=" + align + "> " + value + " </TD>";
    return TDCell;
  }

  public String getTD() {
    String TDCell = null;
    TDCell = "<TD>";
    return TDCell;
  }

  public String getTD(int width) {
    String TDCell = null;
    TDCell = "<TD WIDTH=" + width + ">";
    return TDCell;
  }

  public String getTH(String align, String value) {
    String THCell = null;
    THCell = "<TH align=" + align + "> " + value + " </TH>";
    return THCell;
  }

  public String getTableContents(String align, Vector values,
      int elementCounterthrows IOException {

    StringWriter Cells = new StringWriter();
    String contents = new String();
    int vsize = values.size();

    Cells.write("<TR>");

    for (int i = 0; i < vsize; i++) {
      String value = values.elementAt(i).toString();

      if (i != 0) {
        if (i >= elementCounter) {

          if (i % elementCounter == 0) {
            Cells.write("</TR>\n\n<TR>");
          }
        }
      }

      Cells.write("<TD align=" + align + "> " + value + " </TD> \n");
    }

    Cells.write("</TR>");

    contents = Cells.toString();
    Cells.flush();
    Cells.close();

    return contents;
  }

  public String getClosedTR() {
    String TRCell = null;
    TRCell = "</TR>";
    return TRCell;
  }

  public String getClosedTD() {
    String TDCell = null;
    TDCell = "</TD>";
    return TDCell;
  }

  public String getBR(int lines) {

    StringWriter lineBR = new StringWriter();
    String lineBRs = new String();

    for (int i = 0; i <= lines; i++) {
      lineBR.write("<BR>\n");
    }
    lineBRs = lineBR.toString();

    return lineBRs;
  }

  public String getLI(String item) {

    String li = new String("<LI>");
    li += item;
    return li;

  }
}


           
         
    
    
  
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