使用 jar 但不在库本身时出错

Question

我构建了一个 Java 库来在 IBM MQ 中发送消息。

当我在库项目上执行代码时，它工作正常。

但是，当我使用.jar进入另一个工具（JMeter）时，出现错误。

java.lang.NoSuchMethodError: com.ibm.mq.jmqi.JmqiFactory.getInstance(Lcom/ibm/mq/jmqi/JmqiThreadPoolFactory;Lcom/ibm/mq/jmqi/JmqiPropertyHandler;)Lcom/ibm/mq/jmqi/JmqiEnvironment;
    at com.ibm.msg.client.mqlight.MQLightComponent.getImplementationInfo(MQLightComponent.java:220) ~[mq-jms-8.0.0.3.jar:8.0.0.3 - p800-003-150615.2]
    at com.ibm.msg.client.commonservices.trace.Trace.getVersion(Trace.java:1692) ~[mq-jms-7.0.1.3.jar:?]
    at com.ibm.msg.client.commonservices.trace.Trace.createFFSTString(Trace.java:1650) ~[mq-jms-7.0.1.3.jar:?]
    at com.ibm.msg.client.commonservices.trace.Trace.ffstInternal(Trace.java:1536) ~[mq-jms-7.0.1.3.jar:?]
    at com.ibm.msg.client.commonservices.trace.Trace.ffst(Trace.java:1444) ~[mq-jms-7.0.1.3.jar:?]
    at com.ibm.msg.client.jms.JmsFactoryFactory.getInstance(JmsFactoryFactory.java:209) ~[mq-jms-7.0.1.3.jar:7.0.1.3 - k701-103-100812]
    at com.ibm.mq.jms.MQConnectionFactory.initialiseMQConnectionFactory(MQConnectionFactory.java:3325) ~[mq-jms-7.0.1.3.jar:7.0.1.3 - k701-103-100812]
    at com.ibm.mq.jms.MQConnectionFactory.<init>(MQConnectionFactory.java:274) ~[mq-jms-7.0.1.3.jar:7.0.1.3 - k701-103-100812]
    at my.package.MQ_Manager.createConnection(MQ_Manager.java:36) ~[my-jar.jar:?]
    at my.package.MQ_Manager.<init>(MQ_Manager.java:27) ~[my-jar.jar:?]
    at my.package.Producer.<init>(Producer.java:18) ~[my-jar.jar:?]
    at my.package.Request.sendRequest(Request.java:116) ~[my-jar.jar:?]
    at my.package.Request$sendRequest.call(Unknown Source) ~[?:?]
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47) ~[groovy-all-2.4.16.jar:2.4.16]
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116) ~[groovy-all-2.4.16.jar:2.4.16]
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:120) ~[groovy-all-2.4.16.jar:2.4.16]
    at Script1.run(Script1.groovy:14) ~[?:?]
    at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.eval(GroovyScriptEngineImpl.java:321) ~[groovy-all-2.4.16.jar:2.4.16]
    at org.codehaus.groovy.jsr223.GroovyCompiledScript.eval(GroovyCompiledScript.java:72) ~[groovy-all-2.4.16.jar:2.4.16]
    at javax.script.CompiledScript.eval(Unknown Source) ~[?:1.8.0_31]
    at org.apache.jmeter.util.JSR223TestElement.processFileOrScript(JSR223TestElement.java:223) ~[ApacheJMeter_core.jar:5.1 r1853635]
    at org.apache.jmeter.protocol.java.sampler.JSR223Sampler.sample(JSR223Sampler.java:71) ~[ApacheJMeter_java.jar:5.1 r1853635]
    at org.apache.jmeter.threads.JMeterThread.doSampling(JMeterThread.java:622) ~[ApacheJMeter_core.jar:5.1 r1853635]
    at org.apache.jmeter.threads.JMeterThread.executeSamplePackage(JMeterThread.java:546) ~[ApacheJMeter_core.jar:5.1 r1853635]
    at org.apache.jmeter.threads.JMeterThread.processSampler(JMeterThread.java:486) ~[ApacheJMeter_core.jar:5.1 r1853635]
    at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:253) ~[ApacheJMeter_core.jar:5.1 r1853635]
    at java.lang.Thread.run(Unknown Source) [?:1.8.0_31]

对应代码：

MQConnectionFactory factory = new MQConnectionFactory();
factory.setHostName(properties.getProperty("HOST"));
factory.setPort(Integer.parseInt(properties.getProperty("PORT")));
factory.setChannel(properties.getProperty("CHANNEL"));
factory.setTransportType(WMQConstants.WMQ_CM_CLIENT);
factory.setQueueManager(properties.getProperty("QUEUE_MANAGER"));
factory.setAppName(properties.getProperty("APP_NAME"));
Connection connection = factory.createConnection(properties.getProperty("APP_USER"), properties.getProperty("APP_PASSWORD"));
connection.start();
return connection;

这一行出现错误MQConnectionFactory factory = new MQConnectionFactory();

有什么想法吗？谢谢。

更新 1

创建 .jar 我 :

点击了 Export
已选择Runnable JAR file
已选择Extract required libraries into generated JAR

更新 2

此外，当我构建 Jar 时，我收到此警告。你觉得重要吗？

This operation repacks references libraries. Please review the licences associated with libraries you wish ti reference to make sure you are able to repack them using this application. Note also that this operation does not copy signature files from orignal libraies to the generated JAR file.

Answer 1

在与 OP 讨论了这个问题后，我继续自己验证了这个问题。结果是它对我有用...

第 1 步： 创建了一个包含以下代码的 Maven 项目

package test;

import javax.jms.JMSException;
import com.ibm.mq.jms.MQConnectionFactory;

public class JmeterTest {

    public JmeterTest() {
    }

    public void test() throws JMSException {
        MQConnectionFactory factory = new MQConnectionFactory();
        factory.setAppName("myApp");
    }

    public static void main(String[] args) {
        System.out.println("test");
    }
}

第 2 步： 将其从 eclipse 导出为可运行的 jar 并复制到 JMeter (\lib\ext\)。

请注意，使用库处理 package required jars into generated jar 的导出不起作用。使用 Extract into generated jar 或 Copy into subfolder（然后将子文件夹中的 jar 也复制到 \lib\ext）。

使用 jar 但不在库本身时出错

Error when using jar but not in the library itself

java

ibm-mq