小编Ale*_*uis的帖子

我正在尝试使用tcpdump来显示在我的网络上流动的tcp数据包的内容.我有类似的东西:

tcpdump -i wlan0 -l -A

-A选项将内容显示为ASCII文本,但我的文本似乎是UTF-8.有没有办法使用tcpdump正确显示UTF-8？你知道其他任何有用的工具吗？

非常感谢

Hibernate Validator的validate函数似乎是错误的(版本为hibernate-validator-4.0.2.GA.jar).我可能会错过依赖吗？

我的堆栈跟踪的一部分:

java.lang.NoSuchMethodError: javax.persistence.Persistence.getPersistenceUtil()Ljavax/persistence/PersistenceUtil;
        at org.hibernate.validator.engine.resolver.JPATraversableResolver.isReachable(JPATraversableResolver.java:33)
        at org.hibernate.validator.engine.resolver.DefaultTraversableResolver.isReachable(DefaultTraversableResolver.java:112)
        at org.hibernate.validator.engine.resolver.SingleThreadCachedTraversableResolver.isReachable(SingleThreadCachedTraversableResolver.java:47)
        at org.hibernate.validator.engine.ValidatorImpl.isValidationRequired(ValidatorImpl.java:764)
        at org.hibernate.validator.engine.ValidatorImpl.validateConstraint(ValidatorImpl.java:331)
        at org.hibernate.validator.engine.ValidatorImpl.validateConstraintsForRedefinedDefaultGroup(ValidatorImpl.java:278)
        at org.hibernate.validator.engine.ValidatorImpl.validateConstraintsForCurrentGroup(ValidatorImpl.java:260)
        at org.hibernate.validator.engine.ValidatorImpl.validateInContext(ValidatorImpl.java:213)
        at org.hibernate.validator.engine.ValidatorImpl.validate(ValidatorImpl.java:119)