M使用Spring Boot和ActiveMQ发送和接收消息。请帮助
我在MAVEN项目中有3个班级
1. SampleActiveMQApplication
package hello;
import javax.jms.Queue;
import org.apache.activemq.command.ActiveMQQueue;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.jms.annotation.EnableJms;
@SpringBootApplication
@EnableJms
public class SampleActiveMQApplication {
@Bean
public Queue queue()
{
return new ActiveMQQueue("welcome.queue");
}
public static void main(String[] args) {
SpringApplication.run(SampleActiveMQApplication.class, args);
}
}
M使用Spring Boot和ActiveMQ发送和接收消息。请帮助
我在MAVEN项目中有3个班级
2. Consumer
package hello;
import org.springframework.jms.annotation.JmsListener;
import org.springframework.stereotype.Component;
@Component
public class Consumer {
@JmsListener(destination = "welcome.queue")
public void receiveQueue(String text) {
System.out.println(text);
}
}
M使用Spring Boot和ActiveMQ发送和接收消息。请帮助
我在MAVEN项目中有3个班级
3. Producer
package hello;
import javax.jms.Queue;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.jms.core.JmsMessagingTemplate;
import org.springframework.stereotype.Component;
@Component
public class Producer implements CommandLineRunner {
@Autowired
private JmsMessagingTemplate jmsMessagingTemplate;
@Autowired
private Queue queue;
public void run(String... args) throws Exception {
send("Sample message");
System.out.println("Message was sent to the Queue");
}
public void send(String msg) {
this.jmsMessagingTemplate.convertAndSend(this.queue, msg);
}
}
M得到错误java.lang.NoClassDefFoundError:org / springframework / context / event / GenericApplicationListener class not found error
的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>ApacheMQBoot</groupId>
<artifactId>ApacheMQBoot</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
<!-- Spring version -->
<spring-framework.version>4.1.0.RELEASE</spring-framework.version>
<!-- ActiveMQ version -->
<activemq.version>5.10.0</activemq.version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.2.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- Spring aritifacts -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.2.2.RELEASE</version>
</dependency>
<!-- <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring-framework.version}</version>
</dependency> -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>${spring-framework.version}</version>
</dependency>
<!-- ActiveMQ Artifacts -->
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-spring</artifactId>
<version>${activemq.version}</version>
</dependency>
</dependencies>
<!-- Using JDK 1.7 for compiling -->
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
得到的错误是dis
////
Exception in thread "main" java.lang.IllegalArgumentException: Cannot instantiate interface org.springframework.context.ApplicationListener : org.springframework.boot.logging.ClasspathLoggingApplicationListener
at org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:414)
at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:394)
at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:385)
at org.springframework.boot.SpringApplication.initialize(SpringApplication.java:263)
at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:237)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1191)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1180)
at hello.SampleActiveMQApplication.main(SampleActiveMQApplication.java:22)
Caused by: java.lang.NoClassDefFoundError: org/springframework/context/event/GenericApplicationListener
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.springframework.util.ClassUtils.forName(ClassUtils.java:250)
at org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:407)
... 7 more
Caused by: java.lang.ClassNotFoundException: **org.springframework.context.event.GenericApplicationListener**
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 21 more
答案 0 :(得分:1)
类/接口org.springframework.context.event.GenericApplicationListener
可从4.2版开始提供。您必须更改为更新版本的弹簧。
请参阅javadoc