How to best way to receive info to cite from minecraft plugin? Maybe used simple http servlet, but how start him without Tomcat? Or, maybe, better to use websockets?
I'm creating a project used plugin "Minecraft" like spigot plugin and try to add spring boot web starter but i don't know how to connect him to plugin.
I've added dependencies and change plugin to:
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.sniklz</groupId>
<artifactId>snikkzPlugin</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>SnikkzPlugin</name>
<description>asdasd</description>
<properties>
<java.version>1.8</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>papermc-repo</id>
<url>https://repo.papermc.io/repository/maven-public/</url>
</repository>
<repository>
<id>sonatype</id>
<url>https://oss.sonatype.org/content/groups/public/</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>io.papermc.paper</groupId>
<artifactId>paper-api</artifactId>
<version>1.18.2-R0.1-SNAPSHOT</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>3.0.1</version>
</dependency>
</dependencies>
</project>
SniklzPlugin.class:
package com.sniklz.snikkzplugin;
import org.bukkit.plugin.java.JavaPlugin;
public final class SnikkzPlugin extends JavaPlugin {
#Override
public void onEnable() {
// Plugin startup logic
new Thread(() -> {
SniklzPluginApp.start();
}).start();
}
#Override
public void onDisable() {
// Plugin shutdown logic
}
}
sniklzPluginApp.class:
package com.sniklz.snikkzplugin;
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 SniklzPluginApp {
public static void start() {
SpringApplication.run(SniklzPluginApp.class);
}
}
controller->firstController.class:
package com.sniklz.snikkzplugin.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
#Controller
#RequestMapping("/home")
public class FirstContoller {
#GetMapping
public String homeController() {
System.out.println("Hello World");
return "Hello world";
}
}
But when I build the plugin and start it from server, I get this error:
Exception in thread "Thread-6" java.lang.NoClassDefFoundError: org/springframework/boot/SpringApplication
[09:02:43 WARN]: at snikkzPlugin-1.0-SNAPSHOT.jar//com.sniklz.snikkzplugin.SniklzPluginApp.start(SniklzPluginApp.java:14)
[09:02:43 WARN]: at snikkzPlugin-1.0-SNAPSHOT.jar//com.sniklz.snikkzplugin.SnikkzPlugin.lambda$onEnable$0(SnikkzPlugin.java:11)
[09:02:43 WARN]: at java.base/java.lang.Thread.run(Thread.java:833)
[09:02:43 WARN]: Caused by: java.lang.ClassNotFoundException: org.springframework.boot.SpringApplication
[09:02:43 WARN]: at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:151)
[09:02:43 WARN]: at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:103)
[09:02:43 WARN]: at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
The issue come from that you don't have the spring code with your plugin. To fix this, you should include dependencies as jar.
You can also add a jar of spring in the class loader.
Finally, you can do new Thread(SniklzPluginApp::start).start(); for a one-line starter
Related
I am developing a simple spring boot application. I am creating a LoginController class and trying to access the API which is present in the LoginController class. I am able to execute the program, but not getting the expected output while I am trying to access the API.
Login Controller
package com.in28minutes.springboot.web.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
#RestController
public class LoginController {
#GetMapping("/login")
public String loginMessage() {
return "Welcome to Springboot Application";
}
}
Bootstraping Application
package com.in28minutes.springboot.web.springbootwebexample;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class SpringBootWebExampleApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootWebExampleApplication.class, args);
}
}
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>2.2.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.in28minutes.springboot.web</groupId>
<artifactId>spring-boot-web-example</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>spring-boot-web-example</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>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</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>
I run the project several times but don't get the output as expected. Can anyone help me out?
#SpringBootApplication annotation scans the current package and the sub-packages to look for #Component. In your case, LoginController is not in the package, not a sub-package of SpringBootWebExampleApplication.
Either move com.in28minutes.springboot.web.controller in com.in28minutes.springboot.web.springbootwebexample.controller
Or, use #SpringBootApplication(scanBasePackages = "your.package") on your SpringBootWebExampleApplication
package com.in28minutes.springboot.web.springbootwebexample;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication(scanBasePackages = "com.in28minutes.springboot")
public class SpringBootWebExampleApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootWebExampleApplication.class, args);
}
}
package com.in28minutes.springboot.web.springbootwebexample;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
#ComponentScan("com.in28minutes.springboot")
public class SpringBootWebExampleApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootWebExampleApplication.class, args);
}
}
I'm spinning my wheels on this.
Here is a simple Spring Boot app. I'm trying to use a yaml properties file, but I can't seem to get it to find the properties file or let me access the values in it. I've tried many variations from advice I've searched for here and elsewhere. Nothing is working.
(For reasons I can't go into, I have to use an older version of Spring. (1.5.9))
In IntelliJ I have the Lombok plugin installed, annotations enabled and the language is set to Java 1.8.
Here is the error I'm getting currently:
[ERROR] demo/src/main/java/com/example/demo/Foo.java:[9,10] cannot find symbol
[ERROR] symbol: method value()
[ERROR] location: #interface lombok.Value
[ERROR] demo/src/main/java/com/example/demo/Foo.java:[9,3] annotation type not applicable to this kind of declaration
[ERROR] demo/src/main/java/com/example/demo/Foo.java:[13,5] cannot find symbol
[ERROR] symbol: variable log
[ERROR] location: class com.example.demo.Foo
Here is the folder structure:
Here is the application.yml file:
project:
thing:
path: resources/foo_files
Here is the main class:
package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
Foo foo = new Foo();
SpringApplication.run(DemoApplication.class, args);
}
}
Here is class Foo:
package com.example.demo;
import lombok.Value;
import lombok.extern.slf4j.Slf4j;
#Slf4j
class Foo {
#Value("${project.thing.path}")
private String projectThingPath;
public Foo() {
log.info("path is: " + projectThingPath);
}
}
Here is the 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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.21.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</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</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</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>
For getting value from application.yml you should be using #Value from the package org.springframework.beans.factory.annotation.Value but you are using lombok's #Value
package com.example.demo;
import org.springframework.beans.factory.annotation.Value; // Changed
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;
#Slf4j
#Component // EDIT : Added
class Foo {
#Value("${project.thing.path}")
private String projectThingPath;
public Foo() {
log.info("path is: " + projectThingPath);
}
}
EDIT
So another important point is that, a class should be annotated with stereotype annotation ( To tell Spring to configure the data).
You have compile error because you are using #Slf4j (lombok annotation) but you have not Slf4j lib in your dependencies
In this case you can use #Log or add Slf4j to your dependencies
I have a simple main app:
// Application.java
package com.my.application;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication(scanBasePackages = "com.my")
public class Application
{
public static void main(String[] args)
{
SpringApplication.run(Application.class, args);
}
}
Just a class:
// TestClass.java
package com.my.application;
public class TestClass
{
public TestClass()
{
}
}
With config:
//ApplicationConfiguration
package com.my.configuration;
import com.my.application.TestClass;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
#Configuration
public class ApplicationConfiguration
{
#Autowired
Environment env;
#Bean TestClass getTestClass()
{
System.out.println(env.getProperty("test"));
return new TestClass();
}
}
this is my pom file:
// 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.my</groupId>
<artifactId>test</artifactId>
<version>1.3.0</version>
<packaging>pom</packaging>
<name>test</name>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.5.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.yaml</groupId>
<artifactId>snakeyaml</artifactId>
<version>1.23</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
the application.yml file is just:
// src/main/resources/application.yml
test: 123
Property "test" always = null.
What I was wrong?
Tried with #Value, #ConfigurationProperties,
#EnableConfigurationProperties,
#PropertySource("classpath:src/main/resources/application.yml") annotations,
without the snakeyaml library,
with another spring-boot versions,
but result always the same.
It has to do with Maven - application.properties is not part of the build when you're using <packaging>pom</packaging> in your pom file - hence when you start the Application, the file is not there to be read.
Remove <packaging>pom</packaging> from your pom and you should be good to go.
try adding dependency org.springframework.boot:spring-boot-configuration-processor
I also faced the same issue. Tried lot of things, but it nothing worked.
In the end, when I added below dependency in pom, my application is able to read application.yml file.
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
</dependency>
I'm trying to run a basic Spring Boot application created with the Spring Initializr. I see the application is pretty much the same of many examples available on the Web but I get a '404' page not found:
package com.example;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.RequestMethod;
#RestController
public class Controller {
#RequestMapping(value = "/", method = RequestMethod.GET)
public String hello() {
return "it works!";
}
}
This is the main class:
package com.example.springtest;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
The pom.xml includes just the web starter:
<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>2.1.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>spring-test</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>demo</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>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>
The execution:
$ curl http://localhost:8080
{"timestamp":"2018-12-11T09:18:59.236+0000","status":404,"error":"Not Found","message":"No message available","path":"/"}
Do I miss any starter to get it working?
Thanks
use #ComponentScan() annotation in the main method class and pass the path to the rest service component scan as a parameter.
because by default it only include the service which is in the package and sub package of the main class . so for adding other path service you have to pass the path in component scan annotation.
When using Apache's CXF JAX-RS Spring Boot starter with the CXF CDI dependency (cxf-integration-cdi), Spring fails trying to do the autowiring because it only supports JSR 330 and not CDI. Is there a way to get CDI to work with Spring Boot?
Code:
package com.ibm.test.webservices;
import javax.enterprise.inject.Any;
import javax.enterprise.inject.Default;
import javax.enterprise.inject.Instance;
import javax.inject.Inject;
import javax.inject.Named;
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Application;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
#ApplicationPath("/")
#Path("/")
public class TestWebServices extends Application {
public static void main(String[] args) {
SpringApplication.run(
TestWebServices.class,
"--cxf.path=/",
"--cxf.jaxrs.classes-scan=true",
"--cxf.jaxrs.classes-scan-packages=" +
TestWebServices.class.getPackage().getName()
);
}
#Inject
#Any
private Instance<InvokerInterface> impl;
#GET
#Produces("text/plain")
#Path("/")
public String helloWorld() {
return impl.get().invoke();
}
public interface InvokerInterface {
String invoke();
}
#Named
#Default
public static class Implementation1 implements InvokerInterface {
public String invoke() {
return "Hello World 1\n";
}
}
#Named
public static class Implementation2 implements InvokerInterface {
public String invoke() {
return "Hello World 2\n";
}
}
}
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>com.ibm.test</groupId>
<artifactId>test-spring-boot-with-cdi</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>Test Spring Boot with Apache CXF and CDI</name>
<!-- We need to use cxf-spring-boot-starter-jaxrs 3.2.0 because of https://issues.apache.org/jira/browse/CXF-7237
At the time of writing this code, the latest available version in Maven central
is 3.1.7 so we need to use the Apache snapshot repository. -->
<repositories>
<repository>
<id>apache.snapshots</id>
<name>Apache Development Snapshot Repository</name>
<url>https://repository.apache.org/content/repositories/snapshots/</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.6.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-spring-boot-starter-jaxrs</artifactId>
<version>3.2.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-integration-cdi</artifactId>
<version>3.1.11</version>
</dependency>
</dependencies>
<!-- Required for a standalone JAR: -->
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
Exception:
2017-07-28 16:32:59.527 ERROR 9630 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Field impl in com.ibm.test.webservices.TestWebServices required a bean of type 'javax.enterprise.inject.Instance' that could not be found.
Action:
Consider defining a bean of type 'javax.enterprise.inject.Instance' in your configuration.
[WARNING]
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:90)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
at java.lang.reflect.Method.invoke(Method.java:508)
at org.springframework.boot.maven.AbstractRunMojo$LaunchRunner.run(AbstractRunMojo.java:527)
at java.lang.Thread.run(Thread.java:785)
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'testWebServices': Unsatisfied dependency expressed through field 'impl'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'javax.enterprise.inject.Instance<com.ibm.test.webservices.TestWebServices$InvokerInterface>' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {#javax.inject.Inject(), #javax.enterprise.inject.Any()}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:588)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107)
at com.ibm.test.webservices.TestWebServices.main(TestWebServices.java:22)
... 6 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'javax.enterprise.inject.Instance<com.ibm.test.webservices.TestWebServices$InvokerInterface>' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {#javax.inject.Inject(), #javax.enterprise.inject.Any()}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1493)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1104)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585)
... 25 more
The key insight is that Spring autowiring (e.g. scanBasePackages on #SpringBootApplication, #ComponentScan, etc.) must be avoided. The following worked:
TestSpringBootApplication.java:
package com.test.webservices;
import org.apache.cxf.cdi.CXFCdiServlet;
import org.jboss.weld.environment.se.Weld;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletComponentScan;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.boot.web.support.SpringBootServletInitializer;
import org.springframework.context.ApplicationContextInitializer;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.Bean;
#SpringBootApplication
// #ServletComponentScan only occurs with an embedded web server, and this is
// needed for Tomcat:
// https://docs.jboss.org/weld/reference/latest/en-US/html/environments.html#_tomcat
#ServletComponentScan(basePackageClasses = { org.jboss.weld.environment.servlet.Listener.class })
public class TestSpringBootApplication extends SpringBootServletInitializer {
public static void main(String[] args) {
SpringApplication app = new SpringApplication(TestSpringBootApplication.class);
app.addInitializers(new ApplicationContextInitializer<ConfigurableApplicationContext>() {
#Override
public void initialize(ConfigurableApplicationContext applicationContext) {
new Weld().initialize();
}
});
app.run(args);
}
#Bean
public ServletRegistrationBean cxfServletRegistration() {
// http://cxf.apache.org/docs/using-cxf-and-cdi-11-jsr-346.html
ServletRegistrationBean registration = new ServletRegistrationBean(new CXFCdiServlet(), "/*");
registration.setLoadOnStartup(1);
return registration;
}
}
TestWebServicesApplication.java:
package com.test.webservices;
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;
#ApplicationPath("/")
public class TestWebServicesApplication extends Application {
}
TestWebServices.java:
package com.test.webservices;
import javax.enterprise.inject.Any;
import javax.enterprise.inject.Instance;
import javax.enterprise.inject.Vetoed;
import javax.inject.Inject;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
#Path("/")
public class TestWebServices {
#Inject
#Any
private Instance<InvokerInterface> impl;
#GET
#Produces("text/plain")
#Path("/")
public String helloWorld() {
return impl.get().invoke();
}
public interface InvokerInterface {
String invoke();
}
public static class Implementation1 implements InvokerInterface {
public String invoke() {
return "Hello World 1\n";
}
}
#Vetoed
public static class Implementation2 implements InvokerInterface {
public String invoke() {
return "Hello World 2\n";
}
}
}
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>com.test</groupId>
<artifactId>test-spring-boot-with-cdi</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>Test Spring Boot with Apache CXF and CDI</name>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<!-- We need to use cxf-spring-boot-starter-jaxrs 3.2.0 because of https://issues.apache.org/jira/browse/CXF-7237
At the time of writing this code, the latest available version in Maven central
is 3.1.7 so we need to use the Apache snapshot repository. -->
<repositories>
<repository>
<id>apache.snapshots</id>
<name>Apache Development Snapshot Repository</name>
<url>https://repository.apache.org/content/repositories/snapshots/</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.6.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-spring-boot-starter-jaxrs</artifactId>
<version>3.2.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-integration-cdi</artifactId>
<version>3.1.11</version>
</dependency>
<dependency>
<groupId>org.jboss.weld.servlet</groupId>
<artifactId>weld-servlet</artifactId>
<version>2.4.4.Final</version>
</dependency>
<dependency>
<groupId>org.jboss.weld.se</groupId>
<artifactId>weld-se</artifactId>
<version>2.4.4.Final</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.jaxrs</groupId>
<artifactId>jackson-jaxrs-json-provider</artifactId>
</dependency>
<dependency>
<groupId>org.glassfish</groupId>
<artifactId>javax.json</artifactId>
<version>1.0.4</version>
</dependency>
</dependencies>
<!-- Required for a standalone JAR: -->
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
src/main/resources/META-INF/beans.xml:
<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
version="1.1" bean-discovery-mode="all">
</beans>
src/main/resources/META-INF/context.xml:
<!-- Required for Tomcat: https://docs.jboss.org/weld/reference/latest/en-US/html/environments.html#_tomcat -->
<Context>
<Resource name="BeanManager" auth="Container"
type="javax.enterprise.inject.spi.BeanManager" factory="org.jboss.weld.resources.ManagerObjectFactory" />
</Context>
To use JAXB in addition to JSON, it seems that CXF's JAXRSCdiResourceExtension doesn't find any #Providers, so I also added a CDI Extension that creates JacksonJaxbJsonProvider as an AnnotatedType (this also seems to require that the JAX-RS Application object does not override getClasses or getSingletons and instead auto-discovers all #Paths):
package com.test;
import javax.enterprise.event.Observes;
import javax.enterprise.inject.spi.AnnotatedType;
import javax.enterprise.inject.spi.BeanManager;
import javax.enterprise.inject.spi.BeforeBeanDiscovery;
import com.fasterxml.jackson.jaxrs.json.JacksonJaxbJsonProvider;
public class RegisterCDIBeans implements javax.enterprise.inject.spi.Extension {
public void beforeBeanDiscovery(#Observes BeforeBeanDiscovery bbd, BeanManager beanManager) {
final AnnotatedType<?> annotatedType = beanManager.createAnnotatedType(JacksonJaxbJsonProvider.class);
bbd.addAnnotatedType(annotatedType, annotatedType.toString());
}
}
And then register the CDI extension in src/main/resources/META-INF/services/javax.enterprise.inject.spi.Extension:
com.test.RegisterCDIBeans
you need to create the bean or use #Autowired to inject javax.enterprise.inject.Instance class into TestWebServices. you can create the bean into ApplicationContaxt.xml and use #Autowired #Qualifier to inject class.