According to TLD or attribute directive in tag file, attribute value does not accept any expression
應用部署執行的時候出現JSP異常, 發生在使用JSTL庫的時候: According to TLD or attribute directive in tag file, attribute value does not accept any expressions, 可能是因為使用了JSP2.0版本, 同時又沒有使用JSTL core庫的備用版本(RT庫), 以下有兩種處理方法: 1. 修改web.xml. <web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4">
改為2.3版本的 <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app> 2. 使用JSTL core RT庫 JSTL core庫的有兩種taglib偽指令, 其中RT庫即是依賴於JSP傳統的請求時屬性值, 而不是依賴於EL來實現(稱為EL庫.JSP2.0將支援EL) JSP中使用<%@ taglib uri=http://java.sun.com/jstl/core prefix="c"%>在2.3版本都可以,在2.4就不行了, 難道是版本不相容嗎? 只要將 <%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>
改為 <%@ taglib uri=http://java.sun.com/jstl/core_rt prefix="c"%>
就沒有問題了 |
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