pagemaker.java

<设计模式-Java语言中的应用> 的源码

package pagemaker;

import java.io.FileWriter;
import java.io.IOException;
import java.util.Properties;
import java.util.Enumeration;

public class PageMaker {
    private PageMaker() {   // 不建立对象实例，所以声明private
    }
    public static void makeWelcomePage(String mailaddr, String filename) {
        try {
            Properties mailprop = Database.getProperties("maildata");
            String username = mailprop.getProperty(mailaddr);
            HtmlWriter writer = new HtmlWriter(new FileWriter(filename));
            writer.title("Welcome to " + username + "'s page!");
            writer.paragraph("欢迎來到" + username + "的网页。");
            writer.paragraph("等你來信喔！");
            writer.mailto(mailaddr, username);
            writer.close();
            System.out.println(filename + " is created for " + mailaddr + " (" + username + ")");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public static void makeLinkPage(String filename) {          
        try {
            HtmlWriter writer = new HtmlWriter(new FileWriter(filename));
            writer.title("Link page");
            Properties mailprop = Database.getProperties("maildata");
            Enumeration en = mailprop.propertyNames();
            while (en.hasMoreElements()) {
                String mailaddr = (String)en.nextElement();
                String username = mailprop.getProperty(mailaddr, "(unknown)");
                writer.mailto(mailaddr, username);
            }
            writer.close();
            System.out.println(filename + " is created.");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}