﻿<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>BlogJava-insomnia,politic,proficient ,sensible.-随笔分类-spring学习</title><link>http://www.blogjava.net/youngturk/category/51808.html</link><description>The world is a fine place , and worth fighting for it.</description><language>zh-cn</language><lastBuildDate>Mon, 12 Sep 2016 06:17:11 GMT</lastBuildDate><pubDate>Mon, 12 Sep 2016 06:17:11 GMT</pubDate><ttl>60</ttl><item><title>关于struts2中action传到参数问题</title><link>http://www.blogjava.net/youngturk/archive/2012/11/22/391786.html</link><dc:creator>youngturk</dc:creator><author>youngturk</author><pubDate>Thu, 22 Nov 2012 13:26:00 GMT</pubDate><guid>http://www.blogjava.net/youngturk/archive/2012/11/22/391786.html</guid><wfw:comment>http://www.blogjava.net/youngturk/comments/391786.html</wfw:comment><comments>http://www.blogjava.net/youngturk/archive/2012/11/22/391786.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/youngturk/comments/commentRss/391786.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/youngturk/services/trackbacks/391786.html</trackback:ping><description><![CDATA[第一种方式：<br />&lt;action name="adminEnterpriceculturesave" class="adminEnterpriceculturesaveAction" method="save"&gt;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;result name="success" type="redirectAction"&gt;/admin/adminEnterpriceculturelist.action?enterpriceculture.enterpricetype=A&lt;/result&gt;<br />尽管不好看格式，但是却很容易懂.<br />第一种方式的/admin不是命名空间，暂时我还没时间去实践他，现在有点忙..因为我的命名空间是这样的<br />
<p>&lt;struts&gt; </p>
<p>&nbsp;&nbsp;&nbsp; &lt;package name="enterpriceculture" namespace="/" extends="struts-default"&gt;&nbsp;&nbsp;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;action name="adminEnterpriceculturesave" class="adminEnterpriceculturesaveAction" method="save"&gt;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;result name="success" type="redirectAction"&gt;/admin/adminEnterpriceculturelist.action?enterpriceculture.enterpricetype=A&lt;/result&gt;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;!-- &lt;param name="enterpriceculture.enterpricetype"&gt;A&lt;/param&gt;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;result name="success" type="chain"&gt;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;param name="actionName"&gt;adminEnterpriceculturelist&lt;/param&gt;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;param name="namespace"&gt;/&lt;/param&gt;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/result&gt;--&gt;<br />&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&lt;!-- &lt;result name="success"&gt;/admin/Enterpriceculture_List.jsp&lt;/result&gt;--&gt;<br />&nbsp;&nbsp;&nbsp; &nbsp; &lt;/action&gt;</p>&lt;/package&gt;<br />&lt;/struts&gt;<br />第二种方式：<br />&lt;param name="enterpriceculture.enterpricetype"&gt;A&lt;/param&gt;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;result name="success" type="chain"&gt;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;param name="actionName"&gt;adminEnterpriceculturelist&lt;/param&gt;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;param name="namespace"&gt;/&lt;/param&gt;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/result&gt;<br />去掉命名空间因为是在本文件的这个adminEnterpriceculturelist进行跳转，所以理解起来容易很多..<br /><br /><br />综合找到网上有关资料：如下：<br />chain类型 如下： <br /><br />&nbsp;&nbsp; &lt;action name="getTemplate" class="tabAction" method="getTemplateByParas"&gt; <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;param name="objectId"&gt;${objectId}&lt;/param&gt; <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;param name="param1"&gt;${param1}&lt;/param&gt; <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;param name="items"&gt;${items}&lt;/param&gt; <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;result name="success" type="chain"&gt; <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&lt;param name="actionName"&gt;${actionName}&lt;/param&gt; <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&lt;param name="namespace"&gt;${namespace}&lt;/param&gt; <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/result&gt; <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; <br />&nbsp;&nbsp;&lt;/action&gt; <br /><br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;这样就可以实现传参了，这里的参数所有对象都可以传，包括map,List,set 等集合也可以。同时这里还需要注意一个小问题，chain这种类型是XWork中的result类型,它对应的类是： <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;com.opensymphony.xwork2.ActionChainResult&nbsp;.&nbsp;&nbsp; 这里需要注意一个小问题， actionName,namespace都是他的属性，所以对于传过的URL参数要做一下处理。 <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; actionName必须是Action的名称，namespace是他命名空间，必须以"/"开头，如： <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /tab/getTemplate.action&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 则 namespace="/tab"&nbsp;&nbsp; ;&nbsp; actionName=&#8221;getTemplate&#8220;;&nbsp; <br /><img src ="http://www.blogjava.net/youngturk/aggbug/391786.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/youngturk/" target="_blank">youngturk</a> 2012-11-22 21:26 <a href="http://www.blogjava.net/youngturk/archive/2012/11/22/391786.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>spring中的 继承HibernateDaosupport方法</title><link>http://www.blogjava.net/youngturk/archive/2012/11/22/391725.html</link><dc:creator>youngturk</dc:creator><author>youngturk</author><pubDate>Thu, 22 Nov 2012 00:59:00 GMT</pubDate><guid>http://www.blogjava.net/youngturk/archive/2012/11/22/391725.html</guid><wfw:comment>http://www.blogjava.net/youngturk/comments/391725.html</wfw:comment><comments>http://www.blogjava.net/youngturk/archive/2012/11/22/391725.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/youngturk/comments/commentRss/391725.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/youngturk/services/trackbacks/391725.html</trackback:ping><description><![CDATA[<div>上述的getHibernateTemplate方法中的update方法跟数据库设置主键有关,能根据主键更新..个人理解</div><img src ="http://www.blogjava.net/youngturk/aggbug/391725.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/youngturk/" target="_blank">youngturk</a> 2012-11-22 08:59 <a href="http://www.blogjava.net/youngturk/archive/2012/11/22/391725.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>关于EL表达式中requestScope和param区别 </title><link>http://www.blogjava.net/youngturk/archive/2012/11/12/391205.html</link><dc:creator>youngturk</dc:creator><author>youngturk</author><pubDate>Mon, 12 Nov 2012 07:30:00 GMT</pubDate><guid>http://www.blogjava.net/youngturk/archive/2012/11/12/391205.html</guid><wfw:comment>http://www.blogjava.net/youngturk/comments/391205.html</wfw:comment><comments>http://www.blogjava.net/youngturk/archive/2012/11/12/391205.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/youngturk/comments/commentRss/391205.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/youngturk/services/trackbacks/391205.html</trackback:ping><description><![CDATA[<div id="cnblogs_post_body">
<p>今天演示EL表达式的时候发现自己jsp的基础实在是薄弱，在这个很简单的问题上迷惑了很久。</p>
<p>首先在看遇到的问题：</p>
<p>在浏览器地址输入，表示传入一个参数test，值为123</p>
<div class="cnblogs_code"><pre>http://localhost:8888/Test/index.jsp?test=123</pre></div>
<p><br />在index.jsp中尝试使用EL表达式取出，代码如下：</p>
<div class="cnblogs_code"><pre> <span style="color: #0000ff">&lt;</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span><br />    ${test}<br /> <span style="color: #0000ff">&lt;/</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span></pre></div>
<p>发现毫无结果，再使用requestScope尝试取出：</p>
<div class="cnblogs_code"><pre>  <span style="color: #0000ff">&lt;</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span><br />    ${requestScope.test}<br />  <span style="color: #0000ff">&lt;/</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span></pre></div>
<p>发现还是毫无结果，感到非常诧异，遂干脆使用java脚本尝试取出。</p>
<div class="cnblogs_code"><pre>  <span style="color: #0000ff">&lt;</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span><br />      <span style="background-color: #ffff00; color: #000000">&lt;%</span><span style="background-color: #f5f5f5; color: #000000">request.getAttribute(</span><span style="background-color: #f5f5f5; color: #800000">"</span><span style="background-color: #f5f5f5; color: #800000">test</span><span style="background-color: #f5f5f5; color: #800000">"</span><span style="background-color: #f5f5f5; color: #000000">); </span><span style="background-color: #ffff00; color: #000000">%&gt;</span><br />  <span style="color: #0000ff">&lt;/</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span></pre></div>
<p><br />依然无解。</p>
<p>之后发现，若使用已下代码向request作用域赋值，则用上面代码可以取出</p>
<div class="cnblogs_code"><pre><span style="background-color: #ffff00; color: #000000">&lt;%</span><span style="background-color: #f5f5f5; color: #000000"><br />    request.setAttribute(</span><span style="background-color: #f5f5f5; color: #800000">"</span><span style="background-color: #f5f5f5; color: #800000">test</span><span style="background-color: #f5f5f5; color: #800000">"</span><span style="background-color: #f5f5f5; color: #000000">, </span><span style="background-color: #f5f5f5; color: #800000">"</span><span style="background-color: #f5f5f5; color: #800000">123</span><span style="background-color: #f5f5f5; color: #800000">"</span><span style="background-color: #f5f5f5; color: #000000">);<br /> </span><span style="background-color: #ffff00; color: #000000">%&gt;</span></pre></div>
<p>&nbsp;</p>
<p><br />查询资料后发现，使用以下代码可以取出之前的请求参数：<br />EL:</p>
<div class="cnblogs_code"><pre>  <span style="color: #0000ff">&lt;</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span><br />    ${param.test}<br />  <span style="color: #0000ff">&lt;/</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span></pre></div>
<p>JAVA脚本：</p>
<div class="cnblogs_code"><pre>  <span style="color: #0000ff">&lt;</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span><br />      <span style="background-color: #ffff00; color: #000000">&lt;%</span><span style="background-color: #f5f5f5; color: #000000">=</span><span style="background-color: #f5f5f5; color: #000000">request.getParameter(</span><span style="background-color: #f5f5f5; color: #800000">"</span><span style="background-color: #f5f5f5; color: #800000">test</span><span style="background-color: #f5f5f5; color: #800000">"</span><span style="background-color: #f5f5f5; color: #000000">) </span><span style="background-color: #ffff00; color: #000000">%&gt;</span><br />  <span style="color: #0000ff">&lt;/</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span></pre></div>
<p>结论就是：<span style="widows: 2; text-transform: none; text-indent: 0px; border-collapse: separate; font: medium Simsun; white-space: normal; orphans: 2; letter-spacing: normal; color: #ff0000; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none" class="Apple-style-span"><span style="text-align: left; line-height: 23px; font-family: simsun; font-size: 14px" class="Apple-style-span">${param.name} 等价于 request.getParamter("name")<span style="color: #000000">，这两种方法<span style="widows: 2; text-transform: none; text-indent: 0px; border-collapse: separate; font: medium Simsun; white-space: normal; orphans: 2; letter-spacing: normal; color: #000000; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none" class="Apple-style-span"><span style="text-align: left; line-height: 23px; font-family: simsun; font-size: 14px" class="Apple-style-span">一般用于服务器从页面或者客户端获取的内容。</span></span></span></span></span></p>
<p><span style="widows: 2; text-transform: none; text-indent: 0px; border-collapse: separate; font: medium Simsun; white-space: normal; orphans: 2; letter-spacing: normal; color: #ff0000; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none" class="Apple-style-span"><span style="text-align: left; line-height: 23px; font-family: simsun; font-size: 14px" class="Apple-style-span">　　　　　${requestScope.name}&nbsp;等价于&nbsp;request.getAttribute("name")<span style="color: #000000">，一般是从服务器传递结果到页面，在页面中取出服务器保存的值。</span></span></span></p>
<p>&nbsp;</p>
<p>参考资料：</p>
<blockquote>
<h1 style="padding-bottom: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; color: #ffffff; font-size: 14px; padding-top: 3px"><span style="color: #000080"><strong>el表达式中的${param}</strong></span></h1>
<p><a href="http://topic.csdn.net/u/20090103/15/779af9b8-c3a7-4f3e-82fe-b08bf2630996.html">http://topic.csdn.net/u/20090103/15/779af9b8-c3a7-4f3e-82fe-b08bf2630996.html</a></p></blockquote></div><img src ="http://www.blogjava.net/youngturk/aggbug/391205.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/youngturk/" target="_blank">youngturk</a> 2012-11-12 15:30 <a href="http://www.blogjava.net/youngturk/archive/2012/11/12/391205.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>关于EL表达式中requestScope和param区别 </title><link>http://www.blogjava.net/youngturk/archive/2012/11/12/391206.html</link><dc:creator>youngturk</dc:creator><author>youngturk</author><pubDate>Mon, 12 Nov 2012 07:30:00 GMT</pubDate><guid>http://www.blogjava.net/youngturk/archive/2012/11/12/391206.html</guid><wfw:comment>http://www.blogjava.net/youngturk/comments/391206.html</wfw:comment><comments>http://www.blogjava.net/youngturk/archive/2012/11/12/391206.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/youngturk/comments/commentRss/391206.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/youngturk/services/trackbacks/391206.html</trackback:ping><description><![CDATA[<div id="cnblogs_post_body">
<p>今天演示EL表达式的时候发现自己jsp的基础实在是薄弱，在这个很简单的问题上迷惑了很久。</p>
<p>首先在看遇到的问题：</p>
<p>在浏览器地址输入，表示传入一个参数test，值为123</p>
<div class="cnblogs_code"><pre>http://localhost:8888/Test/index.jsp?test=123</pre></div>
<p><br />在index.jsp中尝试使用EL表达式取出，代码如下：</p>
<div class="cnblogs_code"><pre> <span style="color: #0000ff">&lt;</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span><br />    ${test}<br /> <span style="color: #0000ff">&lt;/</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span></pre></div>
<p>发现毫无结果，再使用requestScope尝试取出：</p>
<div class="cnblogs_code"><pre>  <span style="color: #0000ff">&lt;</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span><br />    ${requestScope.test}<br />  <span style="color: #0000ff">&lt;/</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span></pre></div>
<p>发现还是毫无结果，感到非常诧异，遂干脆使用java脚本尝试取出。</p>
<div class="cnblogs_code"><pre>  <span style="color: #0000ff">&lt;</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span><br />      <span style="background-color: #ffff00; color: #000000">&lt;%</span><span style="background-color: #f5f5f5; color: #000000">request.getAttribute(</span><span style="background-color: #f5f5f5; color: #800000">"</span><span style="background-color: #f5f5f5; color: #800000">test</span><span style="background-color: #f5f5f5; color: #800000">"</span><span style="background-color: #f5f5f5; color: #000000">); </span><span style="background-color: #ffff00; color: #000000">%&gt;</span><br />  <span style="color: #0000ff">&lt;/</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span></pre></div>
<p><br />依然无解。</p>
<p>之后发现，若使用已下代码向request作用域赋值，则用上面代码可以取出</p>
<div class="cnblogs_code"><pre><span style="background-color: #ffff00; color: #000000">&lt;%</span><span style="background-color: #f5f5f5; color: #000000"><br />    request.setAttribute(</span><span style="background-color: #f5f5f5; color: #800000">"</span><span style="background-color: #f5f5f5; color: #800000">test</span><span style="background-color: #f5f5f5; color: #800000">"</span><span style="background-color: #f5f5f5; color: #000000">, </span><span style="background-color: #f5f5f5; color: #800000">"</span><span style="background-color: #f5f5f5; color: #800000">123</span><span style="background-color: #f5f5f5; color: #800000">"</span><span style="background-color: #f5f5f5; color: #000000">);<br /> </span><span style="background-color: #ffff00; color: #000000">%&gt;</span></pre></div>
<p>&nbsp;</p>
<p><br />查询资料后发现，使用以下代码可以取出之前的请求参数：<br />EL:</p>
<div class="cnblogs_code"><pre>  <span style="color: #0000ff">&lt;</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span><br />    ${param.test}<br />  <span style="color: #0000ff">&lt;/</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span></pre></div>
<p>JAVA脚本：</p>
<div class="cnblogs_code"><pre>  <span style="color: #0000ff">&lt;</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span><br />      <span style="background-color: #ffff00; color: #000000">&lt;%</span><span style="background-color: #f5f5f5; color: #000000">=</span><span style="background-color: #f5f5f5; color: #000000">request.getParameter(</span><span style="background-color: #f5f5f5; color: #800000">"</span><span style="background-color: #f5f5f5; color: #800000">test</span><span style="background-color: #f5f5f5; color: #800000">"</span><span style="background-color: #f5f5f5; color: #000000">) </span><span style="background-color: #ffff00; color: #000000">%&gt;</span><br />  <span style="color: #0000ff">&lt;/</span><span style="color: #800000">body</span><span style="color: #0000ff">&gt;</span></pre></div>
<p>结论就是：<span style="widows: 2; text-transform: none; text-indent: 0px; border-collapse: separate; font: medium Simsun; white-space: normal; orphans: 2; letter-spacing: normal; color: #ff0000; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none" class="Apple-style-span"><span style="text-align: left; line-height: 23px; font-family: simsun; font-size: 14px" class="Apple-style-span">${param.name} 等价于 request.getParamter("name")<span style="color: #000000">，这两种方法<span style="widows: 2; text-transform: none; text-indent: 0px; border-collapse: separate; font: medium Simsun; white-space: normal; orphans: 2; letter-spacing: normal; color: #000000; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none" class="Apple-style-span"><span style="text-align: left; line-height: 23px; font-family: simsun; font-size: 14px" class="Apple-style-span">一般用于服务器从页面或者客户端获取的内容。</span></span></span></span></span></p>
<p><span style="widows: 2; text-transform: none; text-indent: 0px; border-collapse: separate; font: medium Simsun; white-space: normal; orphans: 2; letter-spacing: normal; color: #ff0000; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none" class="Apple-style-span"><span style="text-align: left; line-height: 23px; font-family: simsun; font-size: 14px" class="Apple-style-span">　　　　　${requestScope.name}&nbsp;等价于&nbsp;request.getAttribute("name")<span style="color: #000000">，一般是从服务器传递结果到页面，在页面中取出服务器保存的值。</span></span></span></p>
<p>&nbsp;</p>
<p>参考资料：</p>
<blockquote>
<h1 style="padding-bottom: 0px; margin: 0px; padding-left: 0px; padding-right: 0px; color: #ffffff; font-size: 14px; padding-top: 3px"><span style="color: #000080"><strong>el表达式中的${param}</strong></span></h1>
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