commontags.java

一个关于图书馆的服务器的管理程序

package library;

import java.io.*;
import javax.servlet.jsp.*;

/**
 * Class <b>CommonTags</b> represents a 
 * the functions to print a common header and footer.
 *
 * @author CTE
 * @version 1.0
 */
public class CommonTags{

    // Seperators for links.
    private final String SEP = "&nbsp;&nbsp;&nbsp;&nbsp;||&nbsp;&nbsp;&nbsp;&nbsp;";
    
    /**
     * class CommonTags constructor
     */
    public CommonTags()
    {}
    
    /**
     * getHeader returns the string of html for the standard library header.
     * @param omit String which link to omit
     * @return String
     */
    public String getHeader( String omit ) {
	String search = (omit.equals("OMIT_SEARCH")) 
	    ? "Search"
	    : "<a href=\"index.jsp\">Search</a>";
	String member = (omit.equals("OMIT_MEMBER"))
	    ? "Member Login"
	    : "<a href=\"member.jsp\">Member Login</a>";
	String librarian = (omit.equals("OMIT_LIBRARIAN"))
	    ? "Librarian Login"
	    : "<a href=\"librarian.jsp\">Librarian Login</a>";
	
	return new String( "<img src=\"images/logo.gif\" class=\"logo\">\n\n"
			   + "    <div class=\"center\" style=\"width: 600\">\n"
			   + "      <b class=\"smaller\">\n"
			   + "        " + search + SEP + member + SEP + librarian + "\n"
			   + "      </b>\n"
			   + "    </div>");
    }
    
    /** 
     * getFooter returns the standard library footer.
     * @return String
     */
    public String getFooter() {
	return new String( "<hr size=\"1\" noshade align=\"left\" width=\"600\">\n"
			   + "<font size=\"-1\">Copyright &copy; 2003 iCarnegie, Inc. All rights reserved.</font>" );
    }
}