I work with spring mvc , maven, eclipse juno. I created a dynamic web project.
I want to use log4j to show log messages in the console and a file. I deployed my project in the server from eclipse. I deployed my project in Tomcat and weblogic. But I don't see my messages neither console nor file. File is created and has server messages but not my messages.
I copied the log4j.xml from a tutorial. My messages are in the controller. My project is a dynamic web project and I put log4.xml in java resources/src eclipse folder.
I don't know because I don't see messages. Is it necessary to configure more steps?
Structure project is
I added log4j dependencies in 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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>PruebaLog</groupId>
<artifactId>PruebaLog</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
<warSourceDirectory>WebContent</warSourceDirectory>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>3.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>3.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>3.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.15</version>
<exclusions>
<exclusion>
<groupId>com.sun.jmx</groupId>
<artifactId>jmxri</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jdmk</groupId>
<artifactId>jmxtools</artifactId>
</exclusion>
<exclusion>
<groupId>javax.jms</groupId>
<artifactId>jms</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
</project>
My log4j.xml is
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration PUBLIC "-//log4j/log4j Configuration//EN" "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<appender name="Appender1" class="org.apache.log4j.ConsoleAppender">
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%-7p %d [%t] %c %x - %m%n"/>
</layout>
</appender>
<appender name="Appender2" class="org.apache.log4j.FileAppender">
<param name="File" value="D:/Logs/SpringMVC2.log" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%-7p %d [%t] %c %x - %m%n"/>
</layout>
</appender>
<root>
<priority value="INFO"/>
<appender-ref ref="Appender1" />
<appender-ref ref="Appender2" />
</root>
</log4j:configuration>
Your whole project structure is missing the maven conventions. Java package folders and source should be in src/main/java, resources like log4j.xml in src/main/resources and web files in src/main/webapp. Check the apache maven website for an overview. Also use eclipse to create a sample maven web project using maven archetypes.
Related
I am trying to setup a project with spring boot. Although I have defined all the dependencies for log4j, and added the log4j2.xml configuration file, the logs printed doesn't have the pattern defined in xml file. I checked the external libraries pulled by maven, and I see logback dependencies, which are not in my pom, I have even added exclusions. I am using spring boot 3 with Java 17. I have also tried excluding spring-boot-starter-logging. Nothing seems to work.
Here is the pom.xml file
<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.0.0</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.geek8080</groupId>
<artifactId>db_service</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>db_service</name>
<description>DB Service for web app</description>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
<exclusion>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
<exclusion>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
Here is the log4j2.xml file, I have placed this in src/main/resources,
<?xml version="1.0" encoding="UTF-8" ?>
<Configuration>
<Properties>
<Property name="logpath-location">/app/logs</Property>
<Property name="logfile-name">db_service.log</Property>
<Property name="archive">${logpath-location}/archive/dbservice</Property>
<Property name="interval">10</Property>
</Properties>
<Appenders>
<Console name="Console">
<PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss,SSS} [%t] %-5p %C.%M():%L %X - %m%n"/>
</Console>
<RollingFile name="RollingFileAppender" fileName="${logpath-location}/${logfile-name}"
filePattern="${archive}/${logfile-name}.%d{yyyy-MM-dd-HH}.gz">
<PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss,SSS} [%t] %-5p %c.%M ():%L %X - %m%n"/>
<Policies>
<TimeBasedTriggeringPolicy/>
</Policies>
</RollingFile>
</Appenders>
<Loggers>
<Logger name="com.indiantraditionalsnacks.db_service" level="DEBUG" additivity="false">
<AppenderRef ref="Console" level="INFO"/>
<AppenderRef ref="RollingFileAppender" level="DEBUG"/>
</Logger>
<Root level="INFO" includeLocation="true">
<AppenderRef ref="Console" level="INFO"/>
<AppenderRef ref="RollingFileAppender" level="DEBUG"/>
</Root>
</Loggers>
I have noticed that your "pom.xml" doesn't include org.springframework.boot:spring-boot-starter dependency, which is the core Spring Boot Starter.
Try adding it and add exclusion to "org.springframework.boot:spring-boot-starter-logging" from that dependency
I have followed all the tutorials on youtube and I have read all the available documentation on Splunk Cloud HEC setup in Log4j2 Spring boot.
Below is my log4j2-spring.xml
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="info" name="LoggingTesting" packages="">
<Appenders>
<Console name="console" target="SYSTEM_OUT">
<PatternLayout
pattern="event:{%style{%d{ISO8601}} %highlight{%-5level }[%style{%t}{bright,blue}] %style{%C{10}}{bright,yellow}: %msg%n%throwable}" />
</Console>
<SplunkHttp
name="splunkhttp"
url="https://prd-p-vy06a.splunkcloud.com:8088/services/collector/event"
token="TOKEN********************"
host="wa-blog-service"
index="wa_blog_service_dev_index"
sourcetype="_json"
disableCertificateValidation="true" >
<PatternLayout
pattern="event:{%style{%d{ISO8601}} %highlight{%-5level }[%style{%t}{bright,blue}] %style{%C{10}}{bright,yellow}: %msg%n%throwable}" />
</SplunkHttp>
<File name="wa-blog-application" fileName="logs/waBlogApplication.log">
<PatternLayout pattern="%d{yyyy-mm-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
</File>
</Appenders>
<Loggers>
<!-- LOG everything at INFO level -->
<Root level="INFO">
<appender-ref ref="wa-blog-application"/>
<AppenderRef ref="console" />
<AppenderRef ref="splunkhttp" />
</Root>
</Loggers>
</Configuration>
Here is my POM.XML
<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.0</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.worldastrologers</groupId>
<artifactId>blog</artifactId>
<version>1.0</version>
<name>wa-qa-service</name>
<description>WorldAstrologers Service.</description>
<properties>
<java.version>11</java.version>
</properties>
<repositories>
<repository>
<id>splunk-artifactory</id>
<name>Splunk Releases</name>
<url>https://splunk.jfrog.io/splunk/ext-releases-local</url>
</repository>
</repositories>
<dependencies>
<!-- https://mvnrepository.com/artifact/com.splunk.logging/splunk-library-javalogging -->
<dependency>
<groupId>com.splunk.logging</groupId>
<artifactId>splunk-library-javalogging</artifactId>
<version>1.8.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<artifactId>spring-boot-starter-logging</artifactId>
<groupId>org.springframework.boot</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
<version>2.7.4</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.postgresql/postgresql -->
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.13.3</version>
</dependency>
<dependency>
<groupId>jakarta.json</groupId>
<artifactId>jakarta.json-api</artifactId>
<version>2.1.0</version>
</dependency>
</dependencies>
<build>
<finalName>wa-blog-service</finalName>
</build>
</project>
What am I missing ???
I can't see data on my Splunk cloud account. I have checked all the indices.
I am able to see data in Splunk cloud when I send a request from Postman.
The URL in the log4j2-spring.xml file is incorrect.
The URL should be
url="https://prd-p-vy06a.splunkcloud.com:8088"
In order to log to cloudwatch in a lambda, one must use this log4j2.xml:
<?xml version="1.0" encoding="UTF-8"?>
<Configuration packages="com.amazonaws.services.lambda.runtime.log4j2">
<Appenders>
<Lambda name="Lambda">
<PatternLayout>
<pattern>%d{yyyy-MM-dd HH:mm:ss} %X{AWSRequestId} %-5p %c{1}:%L - %m%n</pattern>
</PatternLayout>
</Lambda>
</Appenders>
<Loggers>
<Root level="info">
<AppenderRef ref="Lambda" />
</Root>
</Loggers>
</Configuration>
Also the following items must be in the pom.xml:
<parent>
<artifactId>spring-boot-starter-parent</artifactId>
<groupId>org.springframework.boot</groupId>
<version>2.1.5.RELEASE</version>
</parent>
...
<dependency>
<artifactId>aws-lambda-java-log4j2</artifactId>
<groupId>com.amazonaws</groupId>
<version>1.1.0</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.11.2</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.11.2</version>
</dependency>
Of course none of this works for me. It seems Spring uses Logback and I have tried shutting that off using these instructions. Nothing seems to work.
Any tips?
Got it! I read a post/rant where a guy noticed that AWS used a "5 year old jar" for the Cloudwatch/Lambda logging (can't find it now). So I found a Log4j2 jar that is compatible with 1.2 (log4j-1.2-api) and it worked. I had to shut off Logback in Spring and activate Log4j2. Below should take you all the way.
<dependency>
<artifactId>spring-boot-starter</artifactId>
<groupId>org.springframework.boot</groupId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<dependency>
<artifactId>aws-lambda-java-log4j2</artifactId>
<groupId>com.amazonaws</groupId>
<version>1.1.0</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.11.2</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-1.2-api</artifactId>
<version>2.11.2</version>
</dependency>
...
PS. You might need to fix this as well: log4j2 ERROR StatusLogger Unrecognized conversion specifier
I created a have am using Spring STS with Dali JPA tools installed. I created a JPA project and converted it to a Maven project. I am attempting to add SpringMVC capability.
Here is my web.xml :
<?xml version="1.0" encoding="UTF-8"?>
<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_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>dcspitter</display-name>
<servlet>
<servlet-name>dcspitter</servlet-name>
<servlet-class>org.springfamework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dcspitter</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
Here's my pom.xml. It's basically copied from a Spring MVC template project with hibernate-core added.
<?xml version="1.0" encoding="UTF-8"?>
<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.dchesterman</groupId>
<artifactId>dcspitter</artifactId>
<name>DCSpitter</name>
<packaging>war</packaging>
<version>1.0.0-BUILD-SNAPSHOT</version>
<properties>
<java-version>1.6</java-version>
<org.springframework-version>3.1.0.RELEASE</org.springframework-version>
<org.aspectj-version>1.6.9</org.aspectj-version>
<org.slf4j-version>1.5.10</org.slf4j-version>
</properties>
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework-version}</version>
<exclusions>
<!-- Exclude Commons Logging in favor of SLF4j -->
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<!-- AspectJ -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>${org.aspectj-version}</version>
</dependency>
<!-- Logging -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${org.slf4j-version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${org.slf4j-version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${org.slf4j-version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.15</version>
<exclusions>
<exclusion>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
</exclusion>
<exclusion>
<groupId>javax.jms</groupId>
<artifactId>jms</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jdmk</groupId>
<artifactId>jmxtools</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jmx</groupId>
<artifactId>jmxri</artifactId>
</exclusion>
</exclusions>
<scope>runtime</scope>
</dependency>
<!-- #Inject -->
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
<!-- Servlet -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- Test -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.1.5.SP1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.9</version>
<configuration>
<additionalProjectnatures>
<projectnature>org.springframework.ide.eclipse.core.springnature</projectnature>
</additionalProjectnatures>
<additionalBuildcommands>
<buildcommand>org.springframework.ide.eclipse.core.springbuilder</buildcommand>
</additionalBuildcommands>
<downloadSources>true</downloadSources>
<downloadJavadocs>true</downloadJavadocs>
</configuration>
</plugin>
<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>
<compilerArgument>-Xlint:all</compilerArgument>
<showWarnings>true</showWarnings>
<showDeprecation>true</showDeprecation>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2.1</version>
<configuration>
<mainClass>org.test.int1.Main</mainClass>
</configuration>
</plugin>
</plugins>
</build>
</project>
This is the error I'm getting deploying within vmWare Fabric server in STS.
SEVERE: Servlet /dcspitter threw load() exception
java.lang.ClassNotFoundException: org.springfamework.web.servlet.DispatcherServlet
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1711)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1556)
at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:525)
at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:507)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:124)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1136)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1080)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5015)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5302)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649)
at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
I see the jar in WEB-INF/lib if I export as a WAR. I have Maven Dependencies included in Deployment Assembly and Java Build Path.
Any ideas why I am getting this error?
Thanks all.
I have a standalone Spring command and control application that broadcasts system status using ActiveMQ through the Spring JMS API. This works fine, I have tested it and have a test client program that can register to listen to the topic.
I also have a Spring based GWT application and I am trying to have it register to one of the ActiveMQ topics so it can receive status messages from the C&C application. In the GWT project, I have an applicationContext.xml under WEB-INF:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:amq="http://activemq.apache.org/schema/core"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://activemq.apache.org/schema/core
http://activemq.apache.org/schema/core/activemq-core-5.2.0.xsd">
<amq:topic id="embedded.sysModel" physicalName="org.apache.activemq.spring.embedded.sysmodel" />
</beans>
When I run the GWT application from Eclipse I get the following error(s).
15:16:20,067 ERROR [org.springframework.web.context.ContextLoader] -
Context initialization failed
org.springframework.beans.factory.parsing.BeanDefinitionParsingException:
Configuration problem: Unable to locate Spring NamespaceHandler for
XML schema namespace [http://activemq.apache.org/schema/core]
Offending resource: ServletContext resource
[/WEB-INF/applicationContext.xml]
Now at this point I do not even have any code in the GWT app that is referencing ActiveMQ or the Spring JMS Template. I did at first, but I backed everything out to find the first point of failure. And it appears to be the amq:topic line. If I comment that line out of the applicationContext.xml file, my GWT app initializes and runs just fine.
Here is my pom.xml for GWT
<?xml version="1.0" encoding="UTF-8"?>
<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">
<!-- POM generated by gwt-maven-plugin archetype -->
<modelVersion>4.0.0</modelVersion>
<groupId>gui-spring-gwt</groupId>
<artifactId>ourappgui</artifactId>
<packaging>war</packaging>
<version>2.0</version>
<properties>
<!-- convenience to define GWT version in one place -->
<gwt.version>2.4.0</gwt.version>
<spring.version>3.0.6.RELEASE</spring.version>
<!-- tell the compiler we can use 1.5 -->
<maven.compiler.source>1.6</maven.compiler.source>
<maven.compiler.target>1.6</maven.compiler.target>
</properties>
<dependencies>
<!-- GWT dependencies (from central repo) -->
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-servlet</artifactId>
<version>${gwt.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-user</artifactId>
<version>${gwt.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.14</version>
</dependency>
<!-- test -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derby</artifactId>
<version>10.5.3.0_1</version>
</dependency>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derbyclient</artifactId>
<version>10.5.3.0_1</version>
</dependency>
</dependencies>
<build>
<outputDirectory>war/WEB-INF/classes</outputDirectory>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>2.3.0-1</version>
<dependencies>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-user</artifactId>
<version>${gwt.version}</version>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-dev</artifactId>
<version>${gwt.version}</version>
</dependency>
</dependencies>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>generateAsync</goal>
<goal>test</goal>
</goals>
</execution>
</executions>
<configuration>
<runTarget>pevcogui.html</runTarget>
</configuration>
</plugin>
<!-- If you want to use the target/web.xml file mergewebxml produces,
tell the war plugin to use it. Also, exclude what you want from the final
artifact here. <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId>
<configuration> <webXml>target/web.xml</webXml> <warSourceExcludes>.gwt-tmp/**</warSourceExcludes>
</configuration> </plugin> -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.0.2</version>
<configuration>
<source>${maven.compiler.source}</source>
<target>${maven.compiler.target}</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.1-beta-1</version>
<configuration>
<warSourceDirectory>war</warSourceDirectory>
</configuration>
</plugin>
</plugins>
</build>
</project>
The problem is that the xsd for http://activemq.apache.org/schema/core can't be found. activemq.xsd is part of the activemq-core-xxx.jar, and will be found when this jar is in your classpath. But you don't have a dependency on that.
So add the dependency to activemq-core if you use xmlns:amq:
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-core</artifactId>
<version>5.5.0</version><!-- or whatever version you use -->
</dependency>
It seems that this problem is rooted in the Eclipse GWT plugin. I found this post : Spring NamespaceHandler issue when launching Maven-based GWT App from Eclipse IDE after migration to Spring 3 which discussed a similar problem. This post on the Spring forum is talks about a similar problem with spring-security.
My workaround is to run the GWT app from the command line using "mvn gwt:run". Launching this way keeps the classpath intact. I get a successful build using maven at the cmd line and I can deploy to Glassfish. Its only when launching from within Eclipse that I get the error.