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我收到以下错误，请在我做错的地方帮助我

ERROR n.s.wurfl.core.GeneralWURFLEngine - cannot initialize: java.lang.NullPointerException: in is null
java.lang.NullPointerException: in is null
    at java.util.zip.ZipInputStream.<init>(ZipInputStream.java:100) ~[na:1.7.0_72]
    at java.util.zip.ZipInputStream.<init>(ZipInputStream.java:79) ~[na:1.7.0_72]
    at net.sourceforge.wurfl.core.resource.FileLoader.fromZipFile(FileLoader.java:248) ~[wurfl-1.5.jar:na]
    at net.sourceforge.wurfl.core.resource.FileLoader.openInputStream(FileLoader.java:230) ~[wurfl-1.5.jar:na]

wurfl.zip 在 /web-inf/ 里面，我的 wurfl 弹簧配置如下

    <bean id="net.sourceforge.wurfl.core.WURFLEngine" class="net.sourceforge.wurfl.core.GeneralWURFLEngine">        
    <constructor-arg index="0" value="classpath:/wurfl.zip" />
    <property name="engineTarget" value="performance" />

上面实现的代码是

WebApplicationContext wac = WebApplicationContextUtils.getWebApplicationContext(request.getSession().getServletContext());
WURFLEngine holder = (WURFLEngine)wac.getBean(WURFLEngine.class.getName());
System.out.println("debugging request: "+request+"  ==wurflholder: "+holder+ " Holder String "+holder.toString());

输出显示：

debugging request: org.apache.catalina.core.ApplicationHttpRequest@133b7e9
==wurflholder: net.sourceforge.wurfl.core.GeneralWURFLEngine@6f28c4 
==Holder: String net.sourceforge.wurfl.core.GeneralWURFLEngine@6f28c4

但它在以下代码上给出错误

try{
    device = holder.getDeviceForRequest(request); //This is giving exception 

    }
    catch(Exception e ){e.printStackTrace();}

请指教。

4

1 回答 1

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该/web-inf/目录不在类路径中，这导致引发异常。

尝试将其wurfl.zip放入/web-inf/classes以使其正确加载。

于 2014-12-01T15:50:08.813 回答