org.springframework.http.converter.json.MappingJacksonHttpMessageConverter

標籤：

1、錯誤描述

嚴重: Servlet /huxs threw load() exceptionjava.lang.ClassNotFoundException: org.springframework.http.converter.json.MappingJacksonHttpMessageConverterat org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1645)at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1491)at org.springframework.util.ClassUtils.forName(ClassUtils.java:246)at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:395)at org.springframework.beans.factory.support.AbstractBeanFactory.doResolveBeanClass(AbstractBeanFactory.java:1346)at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1317)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:623)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:592)at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1394)at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:404)at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:381)at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:367)at org.springframework.context.support.AbstractApplicationContext.getBeanNamesForType(AbstractApplicationContext.java:1040)at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.initHandlerMethods(AbstractHandlerMethodMapping.java:142)at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.afterPropertiesSet(AbstractHandlerMethodMapping.java:126)at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.afterPropertiesSet(RequestMappingHandlerMapping.java:126)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1627)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1564)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:540)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229)at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:725)at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:663)at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:629)at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:677)at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:548)at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:489)at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)at javax.servlet.GenericServlet.init(GenericServlet.java:212)at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1173)at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:993)at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4350)at org.apache.catalina.core.StandardContext.start(StandardContext.java:4659)at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445)at org.apache.catalina.startup.Embedded.start(Embedded.java:825)at org.codehaus.mojo.tomcat.AbstractRunMojo.startContainer(AbstractRunMojo.java:558)at org.codehaus.mojo.tomcat.AbstractRunMojo.execute(AbstractRunMojo.java:255)at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:606)at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)

2、錯誤原因

     由於我使用的是spring4.1.1，而在設定檔中使用了spring3的類

     org.springframework.http.converter.json.MappingJacksonHttpMessageConverter

3、解決辦法

（1）將spring4版本修改成spring3

（2）將spring4中配置的類

        org.springframework.http.converter.json.MappingJacksonHttpMessageConverter

        修改成

        org.springframework.http.converter.json.MappingJackson2HttpMessageConverter

org.springframework.http.converter.json.MappingJacksonHttpMessageConverter