java information: java code for Servlet: Print Table

PrintTable

/PrintTable

*/
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 response) throws 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 = " " + title + " ";
return htmlHeader;
}

public String getHtmlFooter() {

String htmlFooter = "";
return htmlFooter;
}

public String getHead(int level, String heading) {
return " " + heading + "";
}

public String getTableHead(String align, int border) {

String tableHeader = null;
tableHeader = "";
return tableHeader;

}

public String getTR(String align) {
String TRCell = null;
TRCell = "";
return TRCell;
}

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

public String getTD(String align, String value) {
String TDCell = null;
TDCell = "";
return TDCell;
}

public String getTD() {
String TDCell = null;
TDCell = "";
return THCell;
}

public String getTableContents(String align, Vector values,
int elementCounter) throws IOException {

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

Cells.write("");

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("\n\n");
}
}
}

Cells.write(" \n");
}

Cells.write("");

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

return contents;
}

public String getClosedTR() {
String TRCell = null;
TRCell = "";
return TRCell;
}

public String getClosedTD() {
String TDCell = null;
TDCell = "";
return TDCell;
}

public String getBR(int lines) {

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

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

return lineBRs;
}

public String getLI(String item) {

String li = new String("

");
li += item;
return li;

}
}

" + value + "	"; return TDCell; } public String getTD(int width) { String TDCell = null; TDCell = "	"; return TDCell; } public String getTH(String align, String value) { String THCell = null; THCell = "	" + value + "
" + value + "

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Wednesday, December 12, 2007

java code for Servlet: Print Table

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