功能:5秒后,自动跳转到同目录下的02view.html文件
1)html的实现
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<head> <meta http-equiv= "refresh" content= "5;url=02view.html" > </head> |
优点:简单
缺点:Struts Tiles中无法使用
2)javascript的实现
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<script language= "javascript" type= "text/javascript" > setTimeout( "javascript:location.href='02view.html'" , 5000 ); </script> |
优点:灵活,可以结合更多的其他功能
缺点:受到不同浏览器的影响
3)结合了倒数的javascript实现(IE)
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<span id= "totalSecond" > 5 </span> <script language= "javascript" type= "text/javascript" > var second = totalSecond.innerText; setInterval( "redirect()" , 1000 ); function redirect(){ totalSecond.innerText=--second; if (second< 0 ) location.href= '02view.html' ; } </script> |
优点:更人性化
缺点:firefox不支持(firefox不支持span、div等的innerText属性)
3')结合了倒数的javascript实现(firefox)
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<script language= "javascript" type= "text/javascript" > var second = document.getElementById( 'totalSecond' ).textContent; setInterval( "redirect()" , 1000 ); function redirect() { document.getElementById( 'totalSecond' ).textContent = --second; if (second < 0 ) location.href = '02view.html' ; } </script> |
4)解决Firefox不支持innerText的问题
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<span id= "totalSecond" > 5 </span> <script language= "javascript" type= "text/javascript" > if (navigator.appName.indexOf( "Explorer" ) > - 1 ){ document.getElementById( 'totalSecond' ).innerText = "my text innerText" ; } else { document.getElementById( 'totalSecond' ).textContent = "my text textContent" ; } </script> |
5)整合3)和3')
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<span id= "totalSecond" > 5 </span> <script language= "javascript" type= "text/javascript" > var second = document.getElementById( 'totalSecond' ).textContent; if (navigator.appName.indexOf( "Explorer" ) > - 1 ) { second = document.getElementById( 'totalSecond' ).innerText; } else { second = document.getElementById( 'totalSecond' ).textContent; } setInterval( "redirect()" , 1000 ); function redirect() { if (second < 0 ) { location.href = '02view.html' ; } else { if (navigator.appName.indexOf( "Explorer" ) > - 1 ) { document.getElementById( 'totalSecond' ).innerText = second--; } else { document.getElementById( 'totalSecond' ).textContent = second--; } } } |
知识不是用来缓存的,持久化才是王道