使用JSP读取客户端信息-会员卡,广州印刷,深圳印刷,印刷公司,名片,彩页,名片设计,设计教程,名片制作,彩色名片,名片模板,贵宾卡,pvc卡,设计欣赏,深圳名片,广州名片,business card design

首页	名片设计 CorelDRAW Illustrator AuotoCAD Painter 其他软件 Photoshop Fireworks Flash

» 彩色名片
» PVC卡
» 彩色磁性卡
» 彩页/画册
» 个性印务
» 彩色不干胶
» 明信片
   » 明信片
   » 彩色书签
   » 门挂
» 其他产品与服务
   » 创业锦囊
   » 办公用品
   » 信封、信纸
   » 便签纸、斜面纸砖
   » 无碳复印纸
   » 海报
   » 大篇幅印刷
   » KT板
   » 海报
   » 横幅

使用JSP读取客户端信息
使用JSP读取客户端信息

　请阅读以下代码。假如你的使用要求不同，可对这些代码加以很方便的修改。这些代码可以使你获得：
公司company, 用户name，版本version，main version，minor version
操作系统(未完成!)，语言language，locale等。

建立一个新的JSP文件:

请将下列class文件加入classpath (你要建立同样的目录结构-- de.hunsicker.http.util，当然也可以自己调节包的名称。!):

package de.hunsicker.http.util;

import java.util.*;

import javax.servlet.*;
import javax.servlet.http.*;

public class Browser extends HttpServlet
{
protected HttpServletRequest request;
protected HttpSession session;

protected String userAgent;
protected String company; // Firmenname des Herstellers
protected String name; // Bezeichnung des Browsers
protected String version; // Version
protected String mainVersion; // Hauptversion
protected String minorVersion; // Unterversion
protected String os; // Betriebssystem
protected String language = "de"; // Sprachcode Standard
protected Locale locale; // Locale-Objekt mit den aktuellen
// Spracheinstellungen

private Hashtable supportedLanguages; // Untersttzte Sprachen

public Browser(HttpServletRequest request, HttpSession session)
{
this.initialize();
this.request = request;
this.session = session;

this.setUserAgent(this.request.getHeader("User-Agent"));
this.setCompany();
this.setName();
this.setVersion();
this.setMainVersion();
this.setMinorVersion();
this.setOs();
this.setLanguage();
this.setLocale();
}

public void initialize()
{
this.supportedLanguages = new Hashtable(2);

this.supportedLanguages.put("en", "");
this.supportedLanguages.put("de", "");
}

public void setUserAgent(String httpUserAgent)
{
this.userAgent = httpUserAgent.toLowerCase();
}

private void setCompany()
{
if (this.userAgent.indexOf("msie") > -1)
{
this.company = "Microsoft";
}
else if (this.userAgent.indexOf("opera") > -1)
{
this.company = "Opera Software";
}
else if (this.userAgent.indexOf("mozilla") > -1)
{
this.company = "Netscape Communications";
}
else
{
this.company = "unknown";
}
}

/**
* Liefert den Firmennamen des Herstellers des verwendeten Browsers.
*/
public String getCompany()
{
return this.company;
}

private void setName()
{
if (this.company == "Microsoft")
{
this.name = "Microsoft Internet Explorer";
}
else if (this.company == "Netscape Communications")
{
this.name = "Netscape Navigator";
}
else if (this.company == "Operasoftware")
{
this.name = "Operasoftware Opera";
}
else
{
this.name = "unknown";
}
}

/**
* Liefert den Namen des verwendeten Browsers.
*/
public String getName()
{
return this.name;
}

private void setVersion()
{
int tmpPos;
String tmpString;

if (this.company == "Microsoft")
{
String str = this.userAgent.substring(this.userAgent.indexOf("msie") + 5);
this.version = str.substring(0, str.indexOf(";"));
}
else
{
tmpString = (this.userAgent.substring(tmpPos = (this.userAgent.indexOf("/")) + 1, tmpPos + this.userAgent.indexOf(" "))).trim();
this.version = tmpString.substring(0, tmpString.indexOf(" "));
}
}

/**
* Liefert die Versionsnummer des verwendeten Browsers.
*/
public String getVersion()
{
return this.version;
}

private void setMainVersion()
{
this.mainVersion = this.version.substring(0, this.version.indexOf("."));
}

/**
* Liefert die Hauptversionsnummer des verwendeten Browsers.
*/
public String getMainVersion()
{
return this.mainVersion;
}

private void setMinorVersion()
{
this.minorVersion = this.version.substring(this.version.indexOf(".") + 1).trim();
}

/**
* Liefert die Unterversionsnummer des verwendeten Browsers.
*/
public String getMinorVersion()
{
return this.minorVersion;
}

private void setOs()
{
if (this.userAgent.indexOf("win") > -1)
{
if (this.userAgent.indexOf("windows 95") > -1 || this.userAgent.indexOf("win95") > -1)
{
this.os = "Windows 95";
}
if (this.userAgent.indexOf("windows 98") > -1 || this.userAgent.indexOf("win98") > -1)
{
this.os = "Windows 98";
}
if (this.userAgent.indexOf("windows nt") > -1 || this.userAgent.indexOf("winnt") > -1)
{
this.os = "Windows NT";
}
if (this.userAgent.indexOf("win16") > -1 || this.userAgent.indexOf("windows 3.") > -1)
{
this.os = "Windows 3.x";
}
}
}

/**
* Liefert den Namen des Betriebssystems.
*/
public String getOs()
{
return this.os;
}

private void setLanguage()
{
String prefLanguage = this.request.getHeader("Accept-Language");

if (prefLanguage != null)
{
String language = null;
StringTokenizer st = new StringTokenizer(prefLanguage, ",");

int elements = st.countTokens();

for (int idx = 0; idx elements; idx++)
{
if (this.supportedLanguages.containsKey((language = st.nextToken())))
{
this.language = this.parseLocale(language);
}
}
}
}

/*
* Hilfsfunktion fr setLanguage().
*/
private String parseLocale(String language)
{
StringTokenizer st = new StringTokenizer(language, "-");

if (st.countTokens() == 2)
{
return st.nextToken();
}
else
{
return language;
}
}

/**
* Liefert das L?nderkürzel der vom Benutzer
* bevorzugten Sprache.
*/
public String getLanguage()
{
return this.language;
}

private void setLocale()
{
this.locale = new Locale(this.language, "");
}

/**
* Liefert ein Locale-Objekt mit der Sprach-Prferenz des verwendeten Browsers
*/
public Locale getLocale()
{
return this.locale;
}
}

返回类别: 教程
上一教程: VBULLETIN HACK----显示话题大小和打开新窗口于论坛索引页
下一教程: JAVA/JSP学习系列之七(ORION下自定义TAG)

您可以阅读与"使用JSP读取客户端信息"相关的教程:
· 用JSP在客户端生成JAVASCRIPT代码来实现表单校验
· JSP文件操作之读取篇
· JSP/SERVLET构建三层治理信息系统
· javascript向jsp传递参数的一种手段：使用xmlhttp对象
· 客户端COOKIE中文编程


	快精灵印艺坊版权所有	首页会员中心在线印刷在线编辑付款方式索取样品设计指南连锁门店网站地图关于我们友情链接