Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: com/fasterxml/jacks
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最近整合SSM框架，使用Jackson组件时，出现了问题，具体描述如下：
查找了一下资料，发现出现Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/exc/InvalidDefinitionException的根本原因在于jar包，我的SSM都是基于5.0.4版本的jar，导入的jackson的jar版本过低造成出现该异常。
现在就OK了。。。
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