错误信息如下:
显示找不到方法
03-Jan-2017 21:05:43.236 SEVERE [http-apr-8081-exec-2] org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [springMVC] in context with path [] threw exception [Handler dispatch failed; nested exception is java.lang.NoSuchMethodError: com.fasterxml.jackson.databind.ObjectMapper.canSerialize(Ljava/lang/Class;Ljava/util/concurrent/atomic/AtomicReference;)Z] with root cause
java.lang.NoSuchMethodError: com.fasterxml.jackson.databind.ObjectMapper.canSerialize(Ljava/lang/Class;Ljava/util/concurrent/atomic/AtomicReference;)Z
at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.canWrite(AbstractJackson2HttpMessageConverter.java:166)
at org.springframework.http.converter.AbstractGenericHttpMessageConverter.canWrite(AbstractGenericHttpMessageConverter.java:68)
at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.getProducibleMediaTypes(AbstractMessageConverterMethodProcessor.java:314)
at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:185)
at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.handleReturnValue(RequestResponseBodyMethodProcessor.java:173)
at org.springframework.web.method