Hi,
I just wrote a simple unit test which is based on your test case, I got
the same error.
That is because the camel context is created before the servlet instance
is initialized.
So I added an init parameter in the CamelHttpTransportServlet to
consumer the spring application context configure file, and make sure
the camel context is created after servlet initialization.
You can find the example here.
http://svn.apache.org/viewvc?rev=803805&view=rev
Willem
janylj wrote:
Sure.
camel-config.xml:
<beans xmlns="http://www.springframework.org/schema/beans";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="
http://camel.apache.org/schema/spring
http://camel.apache.org/schema/spring/camel-spring.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd";>
<!-- create a camel context as to start Camel -->
<camelContext id="camel" xmlns="http://camel.apache.org/schema/spring";>
<package>package.contains.route.builder</package>
</camelContext>
</beans>
web.xml:
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xmlns="http://java.sun.com/xml/ns/javaee";
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd";
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd";
id="WebApp_ID" version="2.5">
<servlet>
<servlet-name>CamelServlet</servlet-name>
<servlet-class>
org.apache.camel.component.servlet.CamelHttpTransportServlet
</servlet-class>
<init-param>
<param-name>matchOnUriPrefix</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>CamelServlet</servlet-name>
<url-pattern>/services/*</url-pattern>
</servlet-mapping>
<!-- location of spring xml files -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:camel-config.xml</param-value>
</context-param>
<!-- the listener that kick-starts Spring -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>
RouteBuilder java class:
public class ServletToJmsRouteBuilder extends RouteBuilder {
public void configure() throws Exception {
from("servlet:///hello?servletName=CamelServlet").process(new
Processor()
{
public void process(Exchange exchange) {
String contentType = (String)
exchange.getIn().getHeader(Exchange.CONTENT_TYPE, String.class);
String path = (String)
exchange.getIn().getHeader(Exchange.HTTP_PATH, String.class);
String charsetEncoding = (String)
exchange.getIn().getHeader(Exchange.HTTP_CHARACTER_ENCODING, String.class);
exchange.getOut().setHeader(Exchange.CONTENT_TYPE,
contentType + "; charset=UTF-8");
exchange.getOut().setHeader("PATH", path);
exchange.getOut().setBody("Hello World");
}
});
}
}
Please let me know if you need anything else. Thanks a lot.
willem.jiang wrote:
Hi,
Can you show me the camel-config.xml?
A simple demo help me debug the issue.
Willem
janylj wrote:
willem.jiang wrote:
If you create the servlet component, you need to specify the servlet
which the component will attach to.
<bean id="servlet"
class="org.apache.camel.component.servlet.ServletComponent">
<property name="camelContext" ref="camel" />
<property name="servletName" value="CamelServlet" />
</bean>
doesn't work, because Tomcat starts error said,
Caused by: org.springframework.beans.InvalidPropertyException: Invalid
property 'servletName' of bean class
[org.apache.camel.component.servlet.ServletComponent]: No property
'servletName' found
willem.jiang wrote:
You don't need to specify the servlet component in spring, if there is
only one camel servlet created in the web context.
doesn't work, because Tomcat starts error said,
Caused by: java.lang.IllegalArgumentException: Can't find the deployied
servlet, please set the ServletComponent with it or delopy a
CamelHttpTransportServlet int the web container
What I am missing? Please note that I am using Spring
ContextLoaderListener.
Thanks a lot.
my web.xml,
<!-- location of spring xml files -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:camel-config.xml</param-value>
</context-param>
<!-- the listener that kick-starts Spring -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>CamelServlet</servlet-name>
<servlet-class>
org.apache.camel.component.servlet.CamelHttpTransportServlet
</servlet-class>
<init-param>
<param-name>matchOnUriPrefix</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>CamelServlet</servlet-name>
<url-pattern>/services/*</url-pattern>
</servlet-mapping>
