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JSP、判断移动设备的正则

2019-11-02 15:05:10
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 天猫php判断移动设备的正则(个人猜测),觉得很好用,于是就决定移植到JSP里面,大家可以参考下

看到了一篇很好的文章, 《在天猫,前端做什么?》,里面有天猫php判断移动设备的正则(个人猜测),觉得很好用,于是就决定移植到JSP里面。  jsp文件名为 index.jsp,其实也可以使用过滤器来进行拦截,然后跳转到其他域名去。  完整代码如下: 代码如下:<[email protected] import="java.util.regex.Matcher"%> <[email protected] import="java.util.regex.Pattern"%> <%@ page language="java" pageEncoding="UTF-8"%> <%!  // b 是单词边界(连着的两个(字母字符 与 非字母字符) 之间的逻辑上的间隔), // 字符串在编译时会被转码一次,所以是 "b" // B 是单词内部逻辑间隔(连着的两个字母字符之间的逻辑上的间隔) String phoneReg = "b(ip(hone|od)|android|opera m(ob|in)i" +"|windows (phone|ce)|blackberry" +"|s(ymbian|eries60|amsung)|p(laybook|alm|rofile/midp" +"|laystation portable)|nokia|fennec|htc[-_]" +"|mobile|up.browser|[1-4][0-9]{2}x[1-4][0-9]{2})b"; String tableReg = "b(ipad|tablet|(Nexus 7)|up.browser" +"|[1-4][0-9]{2}x[1-4][0-9]{2})b"; Pattern phonePat = Pattern.compile(phoneReg, Pattern.CASE_INSENSITIVE); Pattern tablePat = Pattern.compile(tableReg, Pattern.CASE_INSENSITIVE);  public boolean checkMobile(String userAgent){ if(null == userAgent){ userAgent = ""; } // 匹配 Matcher matcherPhone = phonePat.matcher(userAgent); Matcher matcherTable = tablePat.matcher(userAgent); if(matcherPhone.find() || matcherTable.find()){ return true; } else { return false; } } %> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";  // String userAgent = request.getHeader( "USER-AGENT" ).toLowerCase();  if(null == userAgent){ userAgent = "";&
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nbsp;} if(checkMobile(userAgent)){ response.sendRedirect(basePath+"download.html"); //request.getRequestDispatcher("/download.html").forward(request,response); } else { response.sendRedirect(basePath+"index.html"); //request.getRequestDispatcher("/index.html").forward(request,response); } // %>  <!DOCTYPE html> <html lang="zh-cn"> <head> <base href="<%=basePath%>">  <title>测试移动设备跳转</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="测试,移动设备,跳转"> <meta http-equiv="description" content="测试移动设备跳转"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head>  <body>  <div id="pagecontent" style="min-height:500px;_height:500px;">  正在运行!<br> </div>  </body> </html>  
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