Spring Boot Application
I am making a Tag Reader Application where am keep Getting This issue
Note: i am not using any Property file input
This my Simple Spring boot application
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class RfidReaderApplication {
public static void main(String[] args) {
SpringApplication.run(RfidReaderApplication.class, args);
}
}
*Pom.xml *
This pom configursation that i am using to build project and also have one external jar for OctaneSDKJava because it not reader OctaneSDKJava jar form pom so i added externally
<?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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.2.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<groupId>com.Amazin.RFID.Reader</groupId>
<artifactId>RFID-Reader</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>RFID-Reader</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.octane</groupId>
<artifactId>OctaneSDKJava</artifactId>
<version>1.32.0.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Error Msg that i am getting
Exception in thread "main" java.lang.NoSuchMethodError: org.slf4j.impl.StaticLoggerBinder.getSingleton()Lorg/slf4j/impl/StaticLoggerBinder;
at org.springframework.boot.logging.logback.LogbackLoggingSystem.getLoggerContext(LogbackLoggingSystem.java:285)
at org.springframework.boot.logging.logback.LogbackLoggingSystem.beforeInitialize(LogbackLoggingSystem.java:102)
at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationStartingEvent(LoggingApplicationListener.java:220)
at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:199)
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127)
at org.springframework.boot.context.event.EventPublishingRunListener.starting(EventPublishingRunListener.java:69)
at org.springframework.boot.SpringApplicationRunListeners.starting(SpringApplicationRunListeners.java:48)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:302)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248)
at com.Amazin.RFID.Reader.RfidReaderApplication.main(RfidReaderApplication.java:10)
As shown through the post linked in the comments, you are possibly missing some SLF4J dependencies. Another possibility, however, is that your dependencies actually have different versions of SLF4J, but since only one can be used there is a clash. See this SO post as well.
I would recommend explicitly using spring-boot-starter-log4j2 since you are using spring boot and going from there.
Related
I am implementing very basic POC to start spring cloud dataflow server on local.
But I am getting below error :
Field appRegistry in
org.springframework.cloud.dataflow.completion.CompletionConfiguration
required a bean of type
'org.springframework.cloud.dataflow.registry.service.AppRegistryService'
that could not be found. The injection point has the following
annotations:
-#org.springframework.beans.factory.annotation.Autowired(required=true)
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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.ms</groupId>
<artifactId>abc-ui</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>abc-ui</name>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.2.RELEASE</version>
</parent>
<properties>
<java.version>8</java.version>
<h2.version>1.4.193</h2.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-dataflow-server</artifactId>
<version>2.5.1.RELEASE</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
</dependencies>
</project>
Java file :
#EnableDataFlowServer
#SpringBootApplication(exclude = {CloudFoundryDeployerAutoConfiguration.class})
public class App {
public static void main(String[] args) {
SpringApplication.run(App.class,args);
}
}
Is there any way to disable "AppRegistry" bean configuration?
I have implemented same project in another system and it is working fine.
Please let me know what mistake I am making.
The AppRegistryService is a required component for SCDF as it is the source of truth for all the applications registered for Stream and Task applications.
Hence, there is no way to disable it explicitly. But, you can still have a different implementation of AppRegistryService and have it override the existing one though.
I am very new to spring boot stuff. My question is about how to access a spring boot rest service deployed on weblogc server. I have successfully deployed (at least it seems from the WL console) the spring boot war file to the weblogic 12c container. But I am not able to access the service.
I am trying to use the following url to access:
http://host:port/myweb/resource/hello -- I am also not sure whether I should use WL server port on which the war is deployed or 8080 (default spring-boot port)
I have given all the code below. Am i missing anything? I would greatly appreciate any help
POM 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 http://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>2.0.8.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example.demo</groupId>
<artifactId>SpringBootWL1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>SpringBootWL1</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<start-class>com.example.demo.SpringBootWl1Application</start-class>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</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>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Rest Controller:
#RestController
#RequestMapping("/resource")
public class ResourceController {
#GetMapping("/hello")
String home() {
return "Hello World, How are you!";
}
Spring Boot Application
#SpringBootApplication
public class SpringBootWl1Application extends SpringBootServletInitializer implements WebApplicationInitializer {
public static void main(String[] args) {
SpringApplication.run(SpringBootWl1Application.class, args);
}
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
return builder.sources(SpringBootWl1Application.class);
}
}
Weblogic.xml
<?xml version="1.0" encoding="UTF-8"?>
<wls:weblogic-web-app
xmlns:wls="http://xmlns.oracle.com/weblogic/weblogic-web-app"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.oracle.com/weblogic/weblogic-web-app
http://xmlns.oracle.com/weblogic/weblogic-web-app/1.4/weblogic-web-app.xsd">
<wls:context-root>/myweb</wls:context-root>
<wls:container-descriptor>
<!-- <wls:prefer-web-inf-classes>true</wls:prefer-web-inf-classes> -->
<wls:prefer-application-packages>
<wls:package-name>org.slf4j.*</wls:package-name>
<wls:package-name>org.springframework.*</wls:package-name>
<wls:package-name>com.fasterxml.jackson.*</wls:package-name>
</wls:prefer-application-packages>
</wls:container-descriptor>
dispatcherServlet-servlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
</beans>
Your configuration seems ok. The default port of Weblogic is 7001, and every web application is deployed using this port.
To verify the deployment you can access to the console from (http://host:7001/console) and go to the Deployments section, there you must find your application deployed and it must be in State OK. Your can check there your web application context there.
One thing I noticed is your file is called: Weblogic.xml, but it must be called weblogic.xml all lower case.
Let me know if it is not working.
I'm pretty new at Spring framework, and I try to start a project for practice.
But I have an error and I have no idea how to fix this.
I've created a new Spring project in IntelliJ Idea, with Spring Initializr option (In Intellij, not with start.spring.io ). I added only 2 dependedncies for start (Web and Thymeleaf), but it throws error for Thymeleaf dependency if i run it with
'mvn spring-boot:run' command.
My spring project is "empty" , I have no controllers, beans, jpa entites, etc.. but it i think it shound run in this way too. I just wanted to make sure if it works if I run it.
If I create a same project, without Thymeleaf dependency (only Web dependency), it starts correctly on localhost.
I'm using Java 9.0.4 and Apache Maven 3.5.3
My error log
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
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>demo_thymeleaf</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>demo_thymeleaf</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.0.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>9</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
I solved it with deleting the whole C\Users\user.m2 directory.
After then with 'mvn spring-boot:run' it started successfully on localhost.
But I've got one more question:
When I run it, at terminal there are a couple of Warning messages.
Spring application runs anyway, but is there something to do with these messages?
Warning messages during Spring application run.
I am learning Spring Boot. I have just created my first project using maven, Spring Boot, Spring Rest support and MongoDB. It compiles successfully, but it resolves all the dependencies, but do not compile the java classes at all.
After compilation, jar file is correctly created, it contain lib folder, metadata etc, but it do not contain project class file at all.
Hence when i run the project with mvn spring-boot:run, it throws an exception that class not found (Main method class for Spring boot initialization).
Please suggest, what I am doing wrong here, here is my maven configuration class:
<?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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<properties>
<java.version>1.6</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<start-class>com.assignment.BootInitializer</start-class>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.1.9.RELEASE</version>
</parent>
<groupId>com.assignment</groupId>
<artifactId>spring-assignment</artifactId>
<version>1.0</version>
<packaging>jar</packaging>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-mongodb</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
And here is the main initializer class:
package com.assignment;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
#Configuration
#EnableAutoConfiguration
#ComponentScan
public class BootInitializer {
public static void main(String[] args) {
SpringApplication.run(BootInitializer.class, args);
}
}
What I need to do, to ensure that maven is compiling the java classes and including them in the jar file.
Thanks.
I am learning Spring Boot.
Okay, good. Let's do one step at a time. Go to start.spring.io and generate a template project with whatever dependencies you want and whatever build tool (maven / gradle) you like. Build it and run it and see whether it is coming up or not. Then incrementally build on top of it.
I am trying to implement a REST based MongoDB service through Spring, but I have run into some trouble. I cannot import a certain library.
I have this in my class:
package main;
import java.util.List;
import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.data.repository.query.Param;
import org.springframework.data.rest.core.annotation.RepositoryRestResource;
#RepositoryRestResource(collectionResourceRel = "people", path = "people")
public interface PersonRepository extends MongoRepository<Person, String> {
List<Person> findByLastName(#Param("name") String name);
}
But the import org.springframework.data.rest.core.annotation.RepositoryRestResource;
is not working for some reason and is giving me the error: The import org.springframework.data.rest cannot be resolved
This is my maven 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>UserRegistrationServices</groupId>
<artifactId>UserRegistrationServices</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<!-- Inherit defaults from Spring Boot -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.2.5.RELEASE</version>
</parent>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<!-- Get the dependencies of a web application -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<!-- Spring Boot Maven Support -->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Also, I am directly following this guide: http://spring.io/guides/gs/accessing-mongodb-data-rest/
How can this be resolved? Thanks
Edit your pom.xml.... and add these lines inside <dependencies></dependencies>...
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
<version>1.2.5.RELEASE</version>
</dependency>
I had a same problem on 1.3.6.RELEASE.
It said,
org.springframework.data.rest.core.annotation.RepositoryRestResource cannot be resolved to a type
So I set the version of spring-boot as 1.2.8.RELEAS, now I solve the problem.
My current spring-boot's pom.xml is below.
....
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.2.8.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
....
I had the same problem with this error message. In my case was the cause a refresh problem in the IDE (Intellij).
Deleting the line with the annotation (#RepositoryRestResource) and reinsert it helped a lot.
I also had tried to follow the same from https://spring.io/guides/gs/accessing-mongodb-data-rest/
For me, this issue got resolved after I added the version from https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-rest/2.3.0.RELEASE
to be more precise and clear, I added this in the pom.xml file to solve this issue. Maybe if you add the version it will start working!
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-rest -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
<version>2.3.0.RELEASE</version>
</dependency>