一个Struts的项目(通讯录addrssBook)

addressBook 項目

功能：

1、登陸

2、增一個通訊錄

3、查所有的通訊錄

4、退出系統

環境：

1、eclipse +sqlserver2000

import java.io.InputStream;

import java.io.IOException;

import java.io.FileWriter;

import java.io.PrintWriter;

import java.io.PrintStream;

import java.io.FileOutputStream;

import java.net.MalformedURLException;

import java.util.Enumeration;

import java.util.Hashtable;

import java.util.MissingResourceException;

import org.apache.commons.digester.Digester;

import org.apache.commons.beanutils.BeanUtils;

import org.apache.struts.util.MessageResources;

import addressbook.model.UserBean;

/**

* <strong>UserDatabaseServlet</strong> is used to read username/password

* information to an XML file.

* <p>

* The Addressbook sample application uses this file for demonstration purposes

* by reading the database file from <code> /WEB-INF/userdatabase.xml </code>.

private int debug = 0;

public int getDebug() {

return (this.debug);

}

/*

* 加入到哈希表

public void addUser(UserBean user) {

database.put(user.getUserName(), user);//用戶名-用戶

}

public void init() throws ServletException {

String value;

value = getServletConfig().getInitParameter("debug");

try {

debug = Integer.parseInt(value);

if (value != null)

pathname = value;

try {

/*

* Try and load the database.xml file. If we have loaded, store the

* contents into our context so that we can use it to compare

* against for user logons.

*/

load();

//保存加載的數據

}

* Load the current database.xml file. Using the <code>Digester<code>

* @see org.apache.commons.digester.Digester

*/

if (debug >= 1)

if (is == null) {

log("No such resource available - loading empty database");

return;

}

BufferedInputStream bis = new BufferedInputStream(is);

Digester digester = new Digester();

digester.push(this);

digester.setDebug(debug);

digester.setValidating(false);

digester.addObjectCreate("database/user", "addressbook.model.UserBean");

*

* @see javax.servlet.GenericServlet#destroy()

*/

public void destroy() {

getServletContext().removeAttribute(Constants.DATABASE_KEY);// database

}

}

<servlet>

<servlet-name>userdatabase</servlet-name>