我用自己maven打的jar包里面的工具包报OGNL错误

Question

错误位置代码：

 Object o = session.get(Constants.MANAGER_USER);

使用Constants的时候出现错误,急求啊！

错误如下：

 Key "location" was not found on instance of ognl.MethodFailedException. Introspection information for the class is: {reason=java.beans.PropertyDescriptor[name=reason; propertyType=class java.lang.Throwable; readMethod=public java.lang.Throwable ognl.OgnlException.getReason()], getClass=public final native java.lang.Class java.lang.Object.getClass(), getLocalizedMessage=public java.lang.String java.lang.Throwable.getLocalizedMessage(), cause=java.beans.PropertyDescriptor[name=cause; propertyType=class java.lang.Throwable; readMethod=public synchronized java.lang.Throwable java.lang.Throwable.getCause()], java.lang.Object@20f2097b={public ognl.Evaluation ognl.OgnlException.getEvaluation()=[Ljava.lang.Class;@351d3546, public java.lang.String java.lang.Throwable.getLocalizedMessage()=[Ljava.lang.Class;@2e8d3d8f, public java.lang.String ognl.OgnlException.toString()=[Ljava.lang.Class;@253d3df4, public synchronized java.lang.Throwable java.lang.Throwable.initCause(java.lang.Throwable)=[Ljava.lang.Class;@376d7802, public java.lang.String java.lang.Throwable.getMessage()=[Ljava.lang.Class;@6b06ccac, public native int java.lang.Object.hashCode()=[Ljava.lang.Class;@2c20f506, public boolean java.lang.Object.equals(java.lang.Object)=[Ljava.lang.Class;@603eafeb, public synchronized java.lang.Throwable java.lang.Throwable.getCause()=[Ljava.lang.Class;@3ccf6686, public void ognl.OgnlException.setEvaluation(ognl.Evaluation)=[Ljava.lang.Class;@6171ae1f, public void java.lang.Throwable.setStackTrace(java.lang.StackTraceElement[])=[Ljava.lang.Class;@4a52fff2, public java.lang.StackTraceElement[] java.lang.Throwable.getStackTrace()=[Ljava.lang.Class;@5f8640a4, public final synchronized void java.lang.Throwable.addSuppressed(java.lang.Throwable)=[Ljava.lang.Class;@183af684, public final synchronized java.lang.Throwable[] java.lang.Throwable.getSuppressed()=[Ljava.lang.Class;@7457b2ca, public java.lang.Throwable ognl.OgnlException.getReason()=[Ljava.lang.Class;@29276edd, public final native java.lang.Class java.lang.Object.getClass()=[Ljava.lang.Class;@4449883d, public synchronized java.lang.Throwable java.lang.Throwable.fillInStackTrace()=[Ljava.lang.Class;@b88c8e6}, getCause=public synchronized java.lang.Throwable java.lang.Throwable.getCause(), evaluation=java.beans.PropertyDescriptor[name=evaluation; propertyType=class ognl.Evaluation; readMethod=public ognl.Evaluation ognl.OgnlException.getEvaluation()], getStackTrace=public java.lang.StackTraceElement[] java.lang.Throwable.getStackTrace(), addSuppressed=public final synchronized void java.lang.Throwable.addSuppressed(java.lang.Throwable), hashCode=public native int java.lang.Object.hashCode(), getSuppressed=public final synchronized java.lang.Throwable[] java.lang.Throwable.getSuppressed(), suppressed=java.beans.PropertyDescriptor[name=suppressed; propertyType=class [Ljava.lang.Throwable;; readMethod=public final synchronized java.lang.Throwable[] java.lang.Throwable.getSuppressed()], stackTrace=java.beans.PropertyDescriptor[name=stackTrace; propertyType=class [Ljava.lang.StackTraceElement;; readMethod=public java.lang.StackTraceElement[] java.lang.Throwable.getStackTrace()], class=java.beans.PropertyDescriptor[name=class; propertyType=class java.lang.Class; readMethod=public final native java.lang.Class java.lang.Object.getClass()], getEvaluation=public ognl.Evaluation ognl.OgnlException.getEvaluation(), localizedMessage=java.beans.PropertyDescriptor[name=localizedMessage; propertyType=class java.lang.String; readMethod=public java.lang.String java.lang.Throwable.getLocalizedMessage()], printStackTrace=freemarker.ext.beans.OverloadedMethods@4200fabf, java.lang.Object@71ff185a=freemarker.ext.beans.OverloadedMethods@504335a4, getReason=public java.lang.Throwable ognl.OgnlException.getReason(), initCause=public synchronized java.lang.Throwable java.lang.Throwable.initCause(java.lang.Throwable), getMessage=public java.lang.String java.lang.Throwable.getMessage(), message=java.beans.PropertyDescriptor[name=message; propertyType=class java.lang.String; readMethod=public java.lang.String java.lang.Throwable.getMessage()], setEvaluation=public void ognl.OgnlException.setEvaluation(ognl.Evaluation), setStackTrace=public void java.lang.Throwable.setStackTrace(java.lang.StackTraceElement[]), equals=public boolean java.lang.Object.equals(java.lang.Object), toString=public java.lang.String ognl.OgnlException.toString(), fillInStackTrace=public synchronized java.lang.Throwable java.lang.Throwable.fillInStackTrace()}
2017-07-09 12:02:15,839 [http-apr-8080-exec-6] DEBUG [freemarker.beans] - Key "location" was not found on instance of java.lang.NoSuchFieldError. Introspection information for the class is: {getClass=public final native java.lang.Class java.lang.Object.getClass(), localizedMessage=java.beans.PropertyDescriptor[name=localizedMessage; propertyType=class java.lang.String; readMethod=public java.lang.String java.lang.Throwable.getLocalizedMessage()], printStackTrace=freemarker.ext.beans.OverloadedMethods@419b5593, getLocalizedMessage=public java.lang.String java.lang.Throwable.getLocalizedMessage(), java.lang.Object@71ff185a=freemarker.ext.beans.OverloadedMethods@556c0a17, initCause=public synchronized java.lang.Throwable java.lang.Throwable.initCause(java.lang.Throwable), cause=java.beans.PropertyDescriptor[name=cause; propertyType=class java.lang.Throwable; readMethod=public synchronized java.lang.Throwable java.lang.Throwable.getCause()], java.lang.Object@20f2097b={public java.lang.String java.lang.Throwable.getLocalizedMessage()=[Ljava.lang.Class;@45a9bb16, public synchronized java.lang.Throwable java.lang.Throwable.initCause(java.lang.Throwable)=[Ljava.lang.Class;@72b70fee, public java.lang.String java.lang.Throwable.getMessage()=[Ljava.lang.Class;@691bebe6, public native int java.lang.Object.hashCode()=[Ljava.lang.Class;@5c926860, public boolean java.lang.Object.equals(java.lang.Object)=[Ljava.lang.Class;@546b09ef, public synchronized java.lang.Throwable java.lang.Throwable.getCause()=[Ljava.lang.Class;@1ee9b4f3, public void java.lang.Throwable.setStackTrace(java.lang.StackTraceElement[])=[Ljava.lang.Class;@281b2813, public java.lang.StackTraceElement[] java.lang.Throwable.getStackTrace()=[Ljava.lang.Class;@67858418, public final synchronized void java.lang.Throwable.addSuppressed(java.lang.Throwable)=[Ljava.lang.Class;@6badcd76, public java.lang.String java.lang.Throwable.toString()=[Ljava.lang.Class;@38b0b2dc, public final synchronized java.lang.Throwable[] java.lang.Throwable.getSuppressed()=[Ljava.lang.Class;@499a4e69, public final native java.lang.Class java.lang.Object.getClass()=[Ljava.lang.Class;@2f4b606, public synchronized java.lang.Throwable java.lang.Throwable.fillInStackTrace()=[Ljava.lang.Class;@7b70d53}, getMessage=public java.lang.String java.lang.Throwable.getMessage(), message=java.beans.PropertyDescriptor[name=message; propertyType=class java.lang.String; readMethod=public java.lang.String java.lang.Throwable.getMessage()], getCause=public synchronized java.lang.Throwable java.lang.Throwable.getCause(), setStackTrace=public void java.lang.Throwable.setStackTrace(java.lang.StackTraceElement[]), getStackTrace=public java.lang.StackTraceElement[] java.lang.Throwable.getStackTrace(), addSuppressed=public final synchronized void java.lang.Throwable.addSuppressed(java.lang.Throwable), hashCode=public native int java.lang.Object.hashCode(), equals=public boolean java.lang.Object.equals(java.lang.Object), toString=public java.lang.String java.lang.Throwable.toString(), getSuppressed=public final synchronized java.lang.Throwable[] java.lang.Throwable.getSuppressed(), suppressed=java.beans.PropertyDescriptor[name=suppressed; propertyType=class [Ljava.lang.Throwable;; readMethod=public final synchronized java.lang.Throwable[] java.lang.Throwable.getSuppressed()], stackTrace=java.beans.PropertyDescriptor[name=stackTrace; propertyType=class [Ljava.lang.StackTraceElement;; readMethod=public java.lang.StackTraceElement[] java.lang.Throwable.getStackTrace()], class=java.beans.PropertyDescriptor[name=class; propertyType=class java.lang.Class; readMethod=public final native java.lang.Class java.lang.Object.getClass()], fillInStackTrace=public synchronized java.lang.Throwable java.lang.Throwable.fillInStackTrace()}

Answer 1

在上一个已回答，你的constonts类写的有问题，常量加public就能访问了，一般用interface或者enmu做。