spring2 annotation has not rendered - spring

Question

I am new to startup a Java with Spring 2.5.5 project. But have some problem that the Spring annotation has not been resolved. I means my JSP shows the spring annotation directly, like this:
${msg}
[ \target\pom.xml ]
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.demo.spring</groupId>
<artifactId>HelloWorldSpringWeb</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>HelloWorldSpringWeb Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<jdk.version>1.6</jdk.version>
<spring.version>2.5.6</spring.version>
<jstl.version>1.2</jstl.version>
<servletapi.version>2.5</servletapi.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- Spring MVC framework -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- JSTL -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<!-- for compile only, your container should have this -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>${servletapi.version}</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<finalName>HelloWorldSpringWeb</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>${jdk.version}</source>
<target>${jdk.version}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>9.2.11.v20150529</version>
<configuration>
<scanIntervalSeconds>10</scanIntervalSeconds>
<webApp>
<contextPath>/spring2</contextPath>
</webApp>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.9</version>
<configuration>
<downloadSources>true</downloadSources>
<downloadJavadocs>true</downloadJavadocs>
<wtpversion>2.0</wtpversion>
<wtpContextName>spring2</wtpContextName>
</configuration>
</plugin>
</plugins>
</build>
</project>
[ \WEB-INF\web.xml ]
<!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>
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/mvc-dispatcher-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
</web-app>
[ \WEB-INF\mvc-dispatcher-servlet.xml ]
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd">
<bean name="/welcome.htm"
class="com.demo.spring.HelloWorldController" />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver" >
<property name="prefix">
<value>/WEB-INF/pages/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
<context:component-scan base-package="com.demo.spring" />
</beans>
[ com.demo.spring.HelloWorldController.java ]
package com.demo.spring;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
#RequestMapping("/welcome")
public class HelloWorldController {
#RequestMapping(method = RequestMethod.GET)
public ModelAndView helloWorld(){
ModelAndView model = new ModelAndView("index");
model.addObject("msg", "hello world");
return model;
}
}
[ \WEB-INF\pages\index.jsp ]
<%# taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<html>
<body>
<h2>Hello World!!!</h2>
<h2>${msg}</h2>
</body>
</html>
To access the controller, use this URL:
http://127.0.0.1:8080/HelloWorldSpringWeb/welcome.htm
Finally, output on web browser like this:
Hello World!!!
${msg}
As you see, ${msg} is not rendered. What's wrong?
Thank you very much.

Answer 1

After my investigation, I should correct my question to: "Spring 2.5.6 EL has not been resolved".
And now I know that I can add this statement on every pages those has EL expression inside:
<%# page isELIgnored="false" %>
Yes it can solve my problem. But I don't want to add this statement in too many pages in my project.
I find that it is caused by isELIgnored is default to "true" if web.xml is equal or lower than version 2.3. So that I need to add this code to set isELIgnored to true globally:
<jsp-config>
<jsp-property-group>
<url-pattern>*.jsp</url-pattern>
<el-ignored>false</el-ignored>
</jsp-property-group>
</jsp-config>
But no luck. The EL is still hasn't been resolved.
Someone can help?
Thanks a lot.