Convert a csv string to a html table string for displaying - Java java.lang

Java examples for java.lang:String HTML

  1. HOME
  2. Java
  3. java.lang
  4. String HTML

Description

Convert a csv string to a html table string for displaying

Demo Code

import java.util.ArrayList;
import java.util.List;

public class Main {

  /**/* www  .  j  av a 2  s .co m*/
   * Convert a csv string to a html table string for displaying
   * 
   * @param str
   * @return html table string
   */
  public static String csvToHtmlTable(String str) {
    str = handleNewLine(str);
    String[] lines = str.split("\n");

    StringBuilder result = new StringBuilder();

    for (int i = 0; i < lines.length; i++) {

      List<String> rowData = getTableData(lines[i]);

      if (checkIfEmptyRow(rowData)) {
        continue;
      }

      result.append("<tr>");
      for (String td : rowData) {
        result.append(String.format("<td>%s</td>\n", td));
      }
      result.append("</tr>");
    }

    return String.format("<table class=\"table table-bordered table-striped table-condensed\">\n%s</table>",
        result.toString());
  }

  private static String handleNewLine(String str) {

    StringBuilder buffer = new StringBuilder();
    char[] chars = str.toCharArray();

    boolean inquote = false;

    for (int i = 0; i < chars.length; i++) {
      if (chars[i] == '"') {
        inquote = !inquote;
      }

      if (chars[i] == '\n' && inquote) {
        buffer.append("<br>");
      } else {
        buffer.append(chars[i]);
      }
    }

    return buffer.toString();
  }

  private static List<String> getTableData(String str) {
    List<String> data = new ArrayList<String>();

    boolean inquote = false;
    StringBuilder buffer = new StringBuilder();
    char[] chars = str.toCharArray();

    for (int i = 0; i < chars.length; i++) {
      if (chars[i] == '"') {
        inquote = !inquote;
        continue;
      }

      if (chars[i] == ',') {
        if (inquote) {
          buffer.append(chars[i]);
        } else {
          data.add(buffer.toString());
          buffer.delete(0, buffer.length());
        }
      } else {
        buffer.append(chars[i]);
      }

    }

    data.add(buffer.toString().trim());

    return data;
  }

  private static boolean checkIfEmptyRow(List<String> rowData) {

    for (String td : rowData) {
      if (!td.isEmpty()) {
        return false;
      }
    }

    return true;
  }

}

Related Tutorials