NoClassDefFoundError:org / apache / log4j / Java applet中的Logger

时间:2015-06-03 11:21:40

标签: java applet log4j

目前,我正在使用智能卡开发用于电子签名文档的java applet,服务器端的当前applet代码如下所示

    echo "<Applet Code=\"Main.class\" 
        name = \"eParakstitajs\"
        mayscript=\"true\"
        codebase = \"".SERVER_FULL_URL."/EDOC2.4.0._22.05\"
        archive = \"
        classesEDOC2.4.jar,
        log4j-1.2.17.jar,
        eparaksts-bc-1.43.0.jar, 
        eparaksts-client-2.4.0.jar, 
        eparaksts-lib-2.4.0.jar, 
        org.apache.commons.codec_1.3.0.v201101211617.jar, 
        pkcs11wrapper-1.2.18.jar,
        plugin.jar, 
        signing-applet-2.4.0.jar, 
        slf4j-api-1.7.7.jar, 
        slf4j-log4j12-1.7.7.jar, 

        xmlsec-2.0.2.jar, 

        ./config/\"  
        width=1 
        Height=1
          >
    <PARAM NAME=\"key\"         VALUE=\"{$signKey}\">
    <PARAM NAME=\"URL\"         VALUE=\"".SERVER_FULL_URL."\">
    <PARAM NAME=\"PIN1\"        VALUE=\"{$_SESSION["userdata"]["PIN1"]}\">
    <PARAM NAME=\"PIN2\"        VALUE=\"{$_SESSION["userdata"]["PIN2"]}\">
    <PARAM NAME=\"USERID\"      VALUE=\"{$user[0]["id_lietotajs"]}\">
</Applet>"; 

在这个阶段一切正常,所有列出的库都在提到的文件夹中。 (ClassesEDOC2.4.jar是我的归档类,其他所有都是第三方jar)

在我的java代码中,我基于来自jar eparaksts-lib-2.4.0.jar的类QualifiedSignatureHelper实例化对象。在执行期间,会出现异常

    java.lang.NoClassDefFoundError: org/apache/log4j/Logger
    at lv.eparaksts.helpers.QualifiedSignatureHelper.<clinit>(QualifiedSignatureHelper.java:26)
    at CreateNewSignTimestampedAction.CreateNewSignTimestamped(CreateNewSignTimestampedAction.java:128)

    at Main.init(Main.java:221)
    at com.sun.deploy.uitoolkit.impl.awt.AWTAppletAdapter.init(Unknown Source)
    at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Logger
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 6 more

我已经反编译了QualifiedSignatureHelper类,发现它导入了log4j类,并且出于某些原因也实例化了log4j对象

根据例外,QualifiedSignatureHelper类无法找到log4j类。有什么建议吗?

0 个答案:

没有答案