' org.springframework.web.servlet.mvc.annotation.annotationmethodhandleradapter#0 ' __ Common mistakes

org.springframework.beans.factory.beancreationexception:error creating Bean with Name ' Org.springframework.web.servlet.mvc.annotation.annotationmethodhandleradapter#0 ' defined in ServletContext Resource [/web-inf/spring.xml]: Cannot resolve reference to bean ' mappingjacksonhttpmessageconverter ' while setting bean Property ' Messageconverters ' with key [1]; Nested exception is org.springframework.beans.factory.BeanCreationException:Error creating beans with Name ' Mappingjacksonhttpmessageconverter ' defined in ServletContext resource [/web-inf/spring.xml]: Instantiation of Bean Failed Nested exception is org.springframework.beans.BeanInstantiationException:Could not instantiate Bean class [ Org.springframework.http.converter.json.MappingJacksonHttpMessageConverter]: constructor threw exception; Nested exception is Java.lang.noclassdeffounderror:org/codehaus/jackson/map/objectmapper 

caused By:java.lang.ClassNotFoundException:org.codehaus.jackson.map.ObjectMapper

This one's a little packet  Com.springsource.org.codehaus.jackson.mapper-1.4.2.jar.

caused By:java.lang.ClassNotFoundException:org.codehaus.jackson.ObjectCodec

Com.springsource.org.codehaus.jackson-1.4.2.jar

Start Normal

Attach  the contents of the configuration file

<bean class= "Org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" >       <!--Configure a custom Webbindinginitializer based on annotations to resolve date conversion issues, method-level processor mappings-->      < Property Name= "Cacheseconds" value= "0"/>          <!--Configure the conversion of JSON data -->      <property name= "Messageconverters" >            <list>         <bean class= " Org.springframework.http.converter.ByteArrayHttpMessageConverter "/>         <ref bean= "Mappingjacksonhttpmessageconverter"/>        </list>       </property>  </bean>    <bean id= " Mappingjacksonhttpmessageconverter "Class=" Org.springframework.http.converter.json.MappingJacksonHttpMessageConverter ">  &NBSP;&Nbsp;   <!--processing the returned JSON data encoding, the default is Iso-88859-1, here we set it to UTF-8, if there is garbled situation, we just need to modify here on the-->       <property name= "Supportedmediatypes" >           <list>               <value>text/ 
html;charset=utf-8</value>           </list> 
      </property>   </bean>