org.springframework.http.converter.json.MappingJacksonHttpMessageConverter

 

1、错误描述

严重: Servlet /huxs threw load() exception

java.lang.ClassNotFoundException: org.springframework.http.converter.json.MappingJacksonHttpMessageConverter

        at 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、错误原因

由于我使用的是spring4.1.1，而在配置文件中使用了spring3的类

org.springframework.http.converter.json.MappingJacksonHttpMessageConverter

3、解决办法

（1）将spring4版本修改成spring3

（2）将spring4中配置的类

org.springframework.http.converter.json.MappingJacksonHttpMessageConverter

修改成

org.springframework.http.converter.json.MappingJackson2HttpMessageConverter

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