I have an Apache camel application which starts as an 'fat-jar' including an Jetty server.
Is it possible to add hawt.io to the jar in order to use hawt.io for this application?
I tried to add hawt.io with
<dependency>
<groupId>io.hawt</groupId>
<artifactId>hawtio-core</artifactId>
<version>1.4.47</version>
</dependency>
<dependency>
<groupId>io.hawt</groupId>
<artifactId>hawtio-plugin-mbean</artifactId>
<version>1.4.47</version>
</dependency>
<dependency>
<groupId>io.hawt</groupId>
<artifactId>hawtio-springboot</artifactId>
<version>1.4.47</version>
</dependency>
<dependency>
<groupId>io.hawt</groupId>
<artifactId>hawtio-web</artifactId>
<version>1.4.47</version>
<type>war</type>
</dependency>
but "/localhost:[my port]/hawtio" does not respond.
You would need to add some code to tell Jetty to add the hawtio-web WAR file as a context-path to jetty itself.
See how we do this from hawtio embedded
https://github.com/hawtio/hawtio/blob/master/hawtio-embedded/src/main/java/io/hawt/embedded/Main.java
Related
I'm working with Spring Boot 2.4.4 and I would change the default web server Tomcat to undertow orJHetty but I find it very difficult using both Gradle or Maven.
An old documentation exposes how do it but I'm sure all is changed because now tomcat, undertow and jetty configuration is embedded in the core library:
https://docs.spring.io/spring-boot/docs/2.1.9.RELEASE/reference/html/howto-embedded-web-servers.html
How do it in the 2.4.4 version?
There are no changes between the versions. This is well described right at the Spring Boot 2.4.4 Reference guide, right in 3.1. Use Another Web Server section. Basically, the change consists of two steps:
Exclude embedded Tomcat server dependency from the spring-boot-starter-web artifact:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<!-- Exclude the Tomcat dependency -->
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
Include your embedded server as a separate dependency instead:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jetty</artifactId>
</dependency>
Just don't forget to notice the following quote from the reference guide in the very same section which might or might not be relevant to you:
The version of the Servlet API has been overridden as, unlike Tomcat 9 and Undertow 2.0, Jetty 9.4 does not support Servlet 4.0.
follow three steps to change the default web server, change configuration in pom.xml.
1.exclude the default web server.
2.Include the necessary web server.
3.Maven update.
For example,
Instead of this
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</dependency>
Add this one
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jetty</artifactId>
</dependency>
for the necessary server add the appropriate web server dependency.
Automaticall deploy my spring boot application file changes without manually restarting the server.
Use the following dependency:
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-devtools -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<version>1.3.0.RELEASE</version>
</dependency>
Written simple POC to prove and test Spring Boot and log4j2 compatibility. Once successful I will move it to real application.
Please refer my POC source code:
https://github.com/Dennyss/SpringBootLog4j2POC
I know/read about Spring version and log4j2 compatibility from:
How to set up Spring Boot and log4j2 properly?
Found and tried recommendations described here:
Spring-Boot logging with log4j2?
But still not working. The problem is that both application logs and Spring logs are printing to console only.
Please refer maven dependencies below (from POC):
<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>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.6.2</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.6.2</version>
</dependency>
</dependencies>
If I don't exclude Spring's logback and don't add boot-starter-log4j2 then application logs are printing to application file but Spring logs are not printing at all. I feel the problem somewhere with dependencies. Appreciate any help.
According to the Spring Boot Logging documentation, the location of the logging configuration file can be specified using the logging.config property. I noticed that your start.sh script is passing -Dlog4j.configurationFile. Normally, this would be sufficient for direct Log4J 2 integration, but Spring Boot uses logging.config.
After switching to this, it writes to the log files:
java -Dlogging.config=/share/LogPOC/log4j2.xml -cp poc.jar:libs/* com.poc.logger.Application
I'm trying to integrate hawtio in a spring-boot application using apache camel. I followed Spring-Boot Embedded Wars and added HawtioConfiguration from How to run hawt.io in spring boot application with embedded tomcat (except for the kubeservice and kubepod which are not in io.hawt.web package)
So, that works, up to the point where I try to manualy send a message to a direct endpoint from the hawtio interface ( http://localhost:8080/hawtio/index.html#/camel/sendMessage?tab=camel&nid=root-org.apache.camel-camel-1-endpoints-%22direct:%2F%2Fdummy%22 ) . The following warning appears, and no message is sent:
Camel does not support sending to this endpoint.
So, did I forget anything ? Here is my set up : springboot 1.3.3.RELEASE with the following dependencies :
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-spring-boot-starter</artifactId>
<version>2.17.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jersey</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-actuator</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.hawt</groupId>
<artifactId>hawtio-springboot</artifactId>
<version>1.4.64</version>
</dependency>
<dependency>
<groupId>io.hawt</groupId>
<artifactId>hawtio-core</artifactId>
<version>1.4.64</version>
</dependency>
and the Application.java :
#SpringBootApplication
#EnableHawtio
#EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
public class Application {
#Autowired
private ServletContext servletContext;
public static void main(String[] args) {
System.setProperty(AuthenticationFilter.HAWTIO_AUTHENTICATION_ENABLED, "false");
SpringApplication.run(Application.class, args);
}
#PostConstruct
public void init() {
final ConfigManager configManager = new ConfigManager();
configManager.init();
servletContext.setAttribute("ConfigManager", configManager);
}
}
Thanks !
edit: using hawtio as a standalone app and connecting to springboot works fine
edit2: moving on, I used hawtio as a war on another project (same version) , deployed on a tomcat 7. Same issue, cannot send to a direct endpoint.
go figure.
The option of using hawtio as war works very well with application using spring boot and camel, I am already using it successfully.
check the hawtio github code example, it contains good samples to try
https://github.com/hawtio/hawtio
Also I will share my github link with sample's of using hawtio wat or as maven plug-in.
I had the same problem: I could not use hawt.io to send to a direct endpoint (nor any other endpoint). Maybe it is a general Bug/ unimplemented feature in hawt.io?
However, the following was possible:
Copy the Endpoint URL
Select the context node in hawt.io
Click on "Operations"
Use the method sendStringBody(java.lang.String,java.lang.String) to send a string to that endpoint
First parameter is the endpoint URI that you can paste in
I'm trying to run a Spring Boot app on Tomcat 7. From my understanding, it should be compatible with servlet 3.0 spec.
In my dependency, I mark tomcat as provided:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope> <!-- Mark as provided so it doesn't interfere when we deploy in container -->
</dependency>
Edit: And I've added the property <tomcat.version>7.0.59</tomcat.version>
But I still can't start it in tomcat. I'm getting this error:
Caused by: java.lang.NoSuchMethodError: javax.servlet.ServletContext.getVirtualServerName()Ljava/lang/String;
at org.apache.tomcat.websocket.server.WsServerContainer.(WsServerContainer.java:147)
at org.apache.tomcat.websocket.server.WsSci.init(WsSci.java:131)
at org.apache.tomcat.websocket.server.WsSci.onStartup(WsSci.java:47)
Which are because it apparently needs servlet spec 3.1.
Am I missing something?
The problem is, spring-boot also configure websocket support on spring-boot-starter-tomcat, which is includes by spring-boot-starter-web. And according to Apache, you must use Java 7 if you want web socket with Tomcat 7.
Here: http://tomcat.apache.org/whichversion.html
Either compile with Java 7 or exclude websocket support
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-websocket</artifactId>
</exclusion>
</exclusions>
</dependency>