JMSContext NullPointer异常-Wildfly 8.2.0默认队列 [英] JMSContext NullPointer Exception - wildfly 8.2.0 default queue

问题描述

我试图在Wildfly中将消息发送到我的默认队列，当我调用"sendMessage()"时，JMSContext给了我一个空指针异常.我该如何解决?

I am trying to send messages to my default queue in wildfly and when i invoke "sendMessage()" the JMSContext is giving me a null pointer exception. what can i fix ?

public class SendMsg {


@Resource(lookup = "java:/ConnectionFactory")
 ConnectionFactory connectionFactory;


JMSContext context=connectionFactory.createContext();

@Resource(mappedName="java:/jms/queue/test")
Queue queue;

public void sendMessage(String message) {
    System.out.println("fancy beans");
    context.createProducer().send(queue, message);
}

}

推荐答案

您不能将连接工厂称为早期".在构建bean期间不会注入它.直接注入JMSContext可能会更容易.

You cant call the connection factory that "early". It will not be injected during the construction of your bean. Inject a JMSContext directly is probably easier.

public class SendMsg {


//@Resource(lookup = "java:/ConnectionFactory")
//ConnectionFactory connectionFactory;

@Inject
JMSContext context;   //=connectionFactory.createContext();

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