Spring mvc+jackson+jquery 返回json数据出现整合出现包冲突问题

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter#0': Cannot create inner bean '(inner bean)' of type [org.springframework.http.converter.json.MappingJacksonHttpMessageConverter] while setting bean property 'messageConverters' with key [6]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#8': 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: Could not initialize class org.codehaus.jackson.map.ObjectMapperorg.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:281)org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:125)org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedList(BeanDefinitionValueResolver.java:353)org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:153)org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1325)org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1086)org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580)org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:442)org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:458)org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:339)org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:306)org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:127)javax.servlet.GenericServlet.init(GenericServlet.java:158)org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2442)org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2431)java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)java.lang.Thread.run(Thread.java:619)

解决方法：将com.springsource.org.codehaus.jackson.mapper删除，在myeclipse里面搜索这个包，并删除即可