Well, the web.xml as shown below has
<listener>
<!--
listener-class>org.apache.camel.component.servletlistener.SimpleCamelServletContextListener</listener-class
-->
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
so it does have a spring context listener. I removed the comment line and tried
again, just in case the comment was causing some kind of problem, but the
result is the same.
I created a CamelHttpTransportServlet2 and pointed to it as CamelServlet, and
pulled in source from CamelHttpTransportServlet to see if I could see what was
happening that way (I'm not sure it is the correct version of the source). When
the application starts, it hits breakpoints at destroy() and init() and seems
to behave as I would suspect; it also hits a breakpoint at service() when I
click on the link of the first page of the example; in that method, it calls a
deprecated method resolve(HttpRequest request), which returns null for a
variable called consumer, and calls the response method sendError from there.
So it looks like somehow I don't have a consumer for the request that is
supposed to invoke the Camel route, perhaps? But I don't know why that would
be. The init() method shows that the 'contextConfigLocation' is being retrieved
from the web.xml as 'classpath:camel-config.xml' (though I had to put that
param in a different place than the example code shows it for some reason).
What else is it that I need to do?
-----Original Message-----
From: Claus Ibsen [mailto:claus.ib...@gmail.com]
Sent: Tuesday, June 6, 2017 5:33 AM
To: users@camel.apache.org
Subject: Re: trouble with camel spring web example
Its spring that is starting up Camel as you define Camel in the
camel-context.xml file which is a Spring <beans> file.
So you need the spring context listener in the web.xml file so spring startup,
and then can start Camel.
You should see in the log from tomcat, when Camel startup as it logs that. If
you dont see that, then Camel is not starting.
On Mon, Jun 5, 2017 at 4:06 PM, Ralph Cook <ralph.c...@accesspointinc.com>
wrote:
> I am trying to work through an example from the camel website, namely
> camel-example-servlet-tomcat. I want to get a web application working that
> takes input from a web service request and uses it as the data with which to
> start a camel route. I am running Tomcat 7.0.63, Netbeans 8.02, Windows 10
> Pro. Java 1.7, Maven 3.0.4.
>
> I can build the application; when I run it the initial page appears, with the
> link that's supposed to invoke the camel-based route; on clicking that link,
> or on entering any variation of its URL, I get 404, resource not available.
>
> I tried copying the source for CamelHttpTransportServlet to another class and
> configuring that one as CamelServlet, so that I could set breakpoints and see
> what is happening. I can hit breakpoints there but still don't know why it
> isn't working.
>
> I do not understand what part of this invokes .start() on Camel, and wonder
> if I'm missing some step that does that. One difficulty I have with the
> documentation is that it seems to treat all the examples as a block, invoking
> parent poms and giving instructions on compiling all of them together; I
> didn't want to do this but finally attempted it; it requires not only a more
> recent version of Maven than we use in my shop but a more recent version of
> Java, so that route is really frought. This example is so simple, surely
> someone can tell me what I'm doing wrong.
>
> I have the following web.xml:
>
> ---
>
> <web-app version="1.1"
> xmlns="http://www.springframework.org/schema/beans";
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xmlns:camel="http://camel.apache.org/schema/spring";
>
> xsi:schemaLocation="http://www.springframework.org/schema/beans
> http://www.springframework.org/schema/beans/spring-beans.xsd
> http://camel.apache.org/schema/spring
> http://camel.apache.org/schema/spring/camel-spring.xsd";>
>
> <context-param>
> <param-name>contextConfigLocation</param-name>
> <param-value>classpath:camel-config.xml</param-value>
> </context-param>
>
> <listener>
> <!--
> listener-class>org.apache.camel.component.servletlistener.SimpleCamelServletContextListener</listener-class
> -->
>
> <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>contextConfigLocation</param-name>
> <param-value>classpath:camel-config.xml</param-value>
> </init-param -->
>
> <load-on-startup>1</load-on-startup>
> </servlet>
>
> <!-- all our webservices are mapped under this URI pattern -->
> <servlet-mapping>
> <servlet-name>CamelServlet</servlet-name>
> <url-pattern>/camel/*</url-pattern>
> </servlet-mapping>
>
> </web-app>
>
> ---
>
> and the following camel-config.xml
>
> <beans
> xmlns="http://www.springframework.org/schema/beans";
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xmlns:camel="http://camel.apache.org/schema/spring";
> xsi:schemaLocation="
> http://www.springframework.org/schema/beans
> http://www.springframework.org/schema/beans/spring-beans.xsd
> http://camel.apache.org/schema/spring
> http://camel.apache.org/schema/spring/camel-spring.xsd";
> >
>
> <camelContext xmlns="http://camel.apache.org/schema/spring";>
>
> <route id="helloRoute">
> <!-- incoming requests from the servlet is routed -->
> <from uri="servlet:CamelServlet"/>
> <choice>
> <when>
> <!-- is there a header with the key name? -->
> <header>name</header>
> <!-- yes so return back a message to the user -->
> <transform>
> <simple>Hi I am ${sysenv.HOSTNAME}. Hello ${header.name}
> how are you today?</simple>
> </transform>
> </when>
> <otherwise>
> <!-- if no name parameter then output a syntax to the user
> -->
> <transform>
> <constant>Add a name parameter to uri, eg
> ?name=foo</constant>
> </transform>
> </otherwise>
> </choice>
> </route>
>
> </camelContext>
>
> </beans>
>
> ---
>
> Here's the pom.xml as well; I don't think it's related but of course don't
> know.
>
> <project xmlns="http://maven.apache.org/POM/4.0.0";
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
> http://maven.apache.org/xsd/maven-4.0.0.xsd";>
> <modelVersion>4.0.0</modelVersion>
>
> <groupId>com.api</groupId>
> <artifactId>CamelOne</artifactId>
> <version>1.0-SNAPSHOT</version>
> <packaging>war</packaging>
>
> <name>CamelOne</name>
>
> <properties>
> <endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
> <cxf-version>2.6.1</cxf-version>
> <camel-version>2.16.0</camel-version>
> <spring-version>4.1.6.RELEASE</spring-version>
> <!--log4j-version></log4j-version-->
> </properties>
>
> <dependencies>
> <!-- Camel -->
> <dependency><groupId>org.apache.camel</groupId>
> <artifactId>camel-core</artifactId>
> <version>${camel-version}</version> </dependency>
> <dependency><groupId>org.apache.camel</groupId>
> <artifactId>camel-spring</artifactId>
> <version>${camel-version}</version> </dependency>
> <dependency><groupId>org.apache.camel</groupId>
> <artifactId>camel-servlet</artifactId>
> <version>${camel-version}</version> </dependency>
> <dependency><groupId>org.apache.camel</groupId>
> <artifactId>camel-servletlistener</artifactId>
> <version>${camel-version}</version> </dependency>
> <!-- spring -->
> <dependency><groupId>org.springframework</groupId>
> <artifactId>spring-web</artifactId> <version>${spring-version}</version>
> </dependency>
>
> <dependency><groupId>javax.servlet</groupId>
> <artifactId>javax.servlet-api</artifactId><version>3.1.0</version>
> </dependency>
>
> <!-- logging -->
> <!--dependency><groupId>org.apache.logging.log4j</groupId>
> <artifactId>log4j-api </artifactId>
> <version>log4j-version</version> <scope>runtime</scope> </dependency-->
> <!--dependency><groupId>org.apache.logging.log4j</groupId>
> <artifactId>log4j-core </artifactId>
> <version>log4j-version</version> <scope>runtime</scope> </dependency-->
> <!--dependency><groupId>org.apache.logging.log4j</groupId>
> <artifactId>log4j-slf4j-impl </artifactId>
> <version>log4j-version</version> <scope>runtime</scope> </dependency-->
>
> </dependencies>
>
> <build>
> <plugins>
> <plugin>
> <groupId>org.apache.maven.plugins</groupId>
> <artifactId>maven-compiler-plugin</artifactId>
> <version>2.3.2</version>
> <configuration>
> <source>1.6</source>
> <target>1.6</target>
> <compilerArguments>
> <endorseddirs>${endorsed.dir}</endorseddirs>
> </compilerArguments>
> </configuration>
> </plugin>
> <plugin>
> <groupId>org.apache.maven.plugins</groupId>
> <artifactId>maven-war-plugin</artifactId>
> <version>2.3</version>
> <configuration>
> <failOnMissingWebXml>false</failOnMissingWebXml>
> </configuration>
> </plugin>
> <plugin>
> <groupId>org.apache.maven.plugins</groupId>
> <artifactId>maven-dependency-plugin</artifactId>
> <version>2.1</version>
> <executions>
> <execution>
> <phase>validate</phase>
> <goals>
> <goal>copy</goal>
> </goals>
> <configuration>
>
> <outputDirectory>${endorsed.dir}</outputDirectory>
> <silent>true</silent>
> <artifactItems>
> <artifactItem>
> <groupId>javax</groupId>
>
> <artifactId>javaee-endorsed-api</artifactId>
> <version>6.0</version>
> <type>jar</type>
> </artifactItem>
> </artifactItems>
> </configuration>
> </execution>
> </executions>
> </plugin>
>
> <!-- CXF wsdl2java generator, will plugin to the compile goal
> -->
> <plugin>
> <groupId>org.apache.cxf</groupId>
> <artifactId>cxf-codegen-plugin</artifactId>
> <version>${cxf-version}</version>
> <executions>
> <execution>
> <id>generate-sources</id>
> <phase>generate-sources</phase>
> <configuration>
>
> <sourceRoot>${basedir}/target/generated-sources/cxf/</sourceRoot>
> <wsdlOptions>
> <wsdlOption>
>
> <wsdl>${basedir}/src/main/webapp/WEB-INF/wsdl/report_incident.wsdl</wsdl>
> </wsdlOption>
> </wsdlOptions>
> </configuration>
> <goals>
> <goal>wsdl2java</goal>
> </goals>
> </execution>
> </executions>
> </plugin>
> </plugins>
> </build>
>
> </project>
>
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> privileged and confidential information from Access Point, Inc. Any and all
> of this information is only for the viewing or use of the intended recipient.
> If you are not the intended recipient, you are hereby notified that any
> disclosure, copying, distribution or use of, or the taking of any action in
> reliance upon, the information contained in this e-mail, or any of the
> attachments to this e-mail, is strictly prohibited and that this e-mail and
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> to Access Point, Inc. or destroyed and, in either case, this e-mail and all
> attachments to this e-mail must be immediately deleted from your computer
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> please notify Access Point, Inc. by e-mail immediately.
--
Claus Ibsen
-----------------
http://davsclaus.com @davsclaus
Camel in Action 2: https://www.manning.com/ibsen2
The contents of this email and any attachments to it may contain Customer
Proprietary Network Information (CPNI) as defined by the FCC and/or privileged
and confidential information from Access Point, Inc. Any and all of this
information is only for the viewing or use of the intended recipient. If you
are not the intended recipient, you are hereby notified that any disclosure,
copying, distribution or use of, or the taking of any action in reliance upon,
the information contained in this e-mail, or any of the attachments to this
e-mail, is strictly prohibited and that this e-mail and all of the attachments
to this e-mail, if any, must be immediately returned to Access Point, Inc. or
destroyed and, in either case, this e-mail and all attachments to this e-mail
must be immediately deleted from your computer without making any copies
hereof. If you have received this e-mail in error, please notify Access Point,
Inc. by e-mail immediately.
