我是jsp Web开发的新手,调试我的应用程序以能够读取数据库时出现以下错误:
The absolute uri: http://java.sun.com/jsp/jstl/core cannot be resolved in either web.xml or the jar files deployed with this application
长期以来,我在多个站点上研究了Internet,无法解决任何问题.这些是我的规格:
IDE:日食/
JSP版本:2.0 /
Servlet版本:2.4 /
JSTL版本:1.1.1 /
Tomcat版本:7.0.35 /
这是我的WEB-INF / web.xml文件
<?xml version="1.0" encoding="UTF-8" ?>
<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 web-app_2_4.xsd"
version="2.4">
<resource-ref>
<description>Resource configuration for database connection</description>
<res-ref-name>jdbc/TestDB</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
</web-app>
这是我的META-INF / context.xml文件
<?xml version="1.0" encoding="UTF-8" ?>
<Context>
<Resource name="jdbc/TestDB" auth="Container" type="javax.sql.DataSource"
maxActive="100" maxIdle="30" maxWait="10000"
username="admin" password="admin" driverClassName="com.mysql.jdbc.Driver"
url="jdbc:mysql://localhost:3306/checklist_pdnf"/>
</Context>
这是我的jsp文件
<?xml version="1.0" encoding="UTF-8" ?>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="sql" uri="http://java.sun.com/jsp/jstl/sql" %>
<sql:query var="db" dataSource="jdbs/TestDB">
select * from patient
</sql:query>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<div>
<table>
<c:forEach var="row" items="${db.rows}">
<tr>
<td>row.getString("patient_medicalRecordNumber")</td>
<td>row.getString("patient_lastName")</td>
<td>row.getString("patient_firstName")</td>
<td>row.getString("patient_middleName")</td>
<td>row.getString("patient_dateOfBirth")</td>
<td>row.getString("patient_gender")</td>
<td>row.getString("patient_admissionDateTime")</td>
<td>row.getString("patient_dischargeDateTime")</td>
<td>row.getString("patient_attendingPhysician")</td>
<td>row.getString("patient_locationRoom")</td>
</tr>
</c:forEach>
</table>
</div>
</body>
</html>
解决方法:
原来我的JSP版本实际上是2.2,我记得在Eclipse中打开一个About页面能够获取此信息,但无法为回答目的而重新找到它.但是,如有必要,我将相应地更新此答案.
使用的库:
(1)javax.servlet.jsp.jstl-1.2.1.jar
(2)javax.servlet.jsp.jstl-api-1.2.1.jar
(3)javax.servlet-api-3.0.1.jar
(4)mysql-connector-java-5.1.23-bin.jar
从http://java.net/projects/jsp/sources/svn/content/trunk/impl/pom.xml?rev=1440引用的pom.xml
依赖项的版本为:
a)javax.servlet-api 3.1. (b)javax.el-api 2.2.1. (c)javax.servlet.jsp-api 1.2.1(d)javax.servlet.jsp.jstl-api 1.2.1. (e)jstl 1.2. (f)jstl-imp 1.2.
web.xml中的参考:
`<web-app
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"> `