java - java.lang.ClassNotFoundException: com.ibm.ejs.ras.hpel.HpelHelper

问题描述

再会，

我有一个简单的 http post java main 函数如下：

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.HttpHostConnectException;
import org.apache.http.impl.client.DefaultHttpClient;


public class Test {

    public static void main(String[] args) {
        try {
            System.out.println("java version: " + System.getProperty("java.version"));
            HttpClient httpclient = new DefaultHttpClient( );
            HttpPost post = new HttpPost("http://www.google.com");
            HttpResponse response = httpclient.execute( post );
            System.out.println("response is " + response);
            } 
        catch ( HttpHostConnectException ce ) {
                System.out.println("Service is not available. Please try again later." );
            } 
        catch ( Exception e ) {
                System.out.println("e is " + e);
            }
    }
}

我在 IBM RAD 中有一些 java 项目，当我在项目的 1 中运行此代码时，我会得到 http 200 响应。但是，在另一个项目中，我运行相同的代码，我会得到如下错误：无法实例化 [ch.qos.logback.classic.LoggerContext] 报告异常：

java.lang.NoClassDefFoundError: com.ibm.ejs.ras.hpel.HpelHelper
    at com.ibm.ejs.ras.RasHelper.getThreadId(RasHelper.java:1735)
    at com.ibm.ejs.ras.RasEvent6$1.initialValue(RasEvent6.java:101)
    at java.lang.ThreadLocal.setInitialValue(ThreadLocal.java:152)
    at java.lang.ThreadLocal.get(ThreadLocal.java:142)
    at com.ibm.ejs.ras.RasEvent6.<init>(RasEvent6.java:292)
    at com.ibm.ejs.ras.MessageEvent6.<init>(MessageEvent6.java:203)
    at com.ibm.ejs.ras.Tr.fireMessageEvent(Tr.java:1558)
    at com.ibm.ejs.ras.Tr.error(Tr.java:728)
    at com.ibm.ws.naming.java.javaURLContextFactory.isNameSpaceAccessable(javaURLContextFactory.java:108)
    at com.ibm.ws.naming.urlbase.UrlContextFactory.getObjectInstance(UrlContextFactory.java:85)
    at javax.naming.spi.NamingManager.getURLContext(NamingManager.java:702)
    at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:422)
    at javax.naming.InitialContext.lookup(InitialContext.java:436)
    at ch.qos.logback.classic.util.JNDIUtil.lookup(JNDIUtil.java:38)
    at ch.qos.logback.classic.joran.action.InsertFromJNDIAction.begin(InsertFromJNDIAction.java:62)
    at ch.qos.logback.core.joran.spi.Interpreter.callBeginAction(Interpreter.java:277)
    at ch.qos.logback.core.joran.spi.Interpreter.startElement(Interpreter.java:149)
    at ch.qos.logback.core.joran.spi.Interpreter.startElement(Interpreter.java:131)
    at ch.qos.logback.core.joran.spi.EventPlayer.play(EventPlayer.java:50)
    at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:148)
    at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:134)
    at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:97)
    at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:56)
    at ch.qos.logback.classic.util.ContextInitializer.configureByResource(ContextInitializer.java:77)
    at ch.qos.logback.classic.util.ContextInitializer.autoConfig(ContextInitializer.java:150)
    at org.slf4j.impl.StaticLoggerBinder.init(StaticLoggerBinder.java:85)
    at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:55)
    at java.lang.J9VMInternals.initializeImpl(Native Method)
    at java.lang.J9VMInternals.initialize(J9VMInternals.java:228)
    at org.slf4j.LoggerFactory.bind(LoggerFactory.java:128)
    at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:108)
    at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:279)
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:252)
    at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:156)
    at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:132)
    at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:685)
    at org.apache.http.impl.client.AbstractHttpClient.<init>(AbstractHttpClient.java:159)
    at org.apache.http.impl.client.DefaultHttpClient.<init>(DefaultHttpClient.java:178)
    at com.ibs.ui.customer.action.Test.main(Test.java:15)
Caused by: java.lang.ClassNotFoundException: com.ibm.ejs.ras.hpel.HpelHelper
    at java.net.URLClassLoader.findClass(URLClassLoader.java:434)
    at java.lang.ClassLoader.loadClassHelper(ClassLoader.java:665)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:644)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:358)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:627)
    ... 39 more

这两个项目都包含相同的com.ibm.ws.runtime.jar.

这两个项目都是java 1.6。

请指教。感谢你的帮助。

标签： javahttp-postclassnotfoundexceptionjava-6ibm-rad

java - java.lang.ClassNotFoundException: com.ibm.ejs.ras.hpel.HpelHelper

问题描述

解决方案

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