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问题-java.lang.ClassNotFoundException：org.springframework.web.servlet.DispatcherServlet（问题的英文）

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问题-java.lang.ClassNotFoundException：org.springframework.web.servlet.DispatcherServlet（问题的英文）

问题-java.lang.ClassNotFoundException：org.springframework.web.servlet.DispatcherServlet（问题的英文）

我试图在Spring Example上发布并运行简单的Spring应用程序。

我正进入（状态

SEVERE: Servlet /MavenWeb threw load() exception java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521)
    at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:415)
    at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:397)
    at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:118)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1073)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1021)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4957)
    at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5284)
    at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5279)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)

我已经安装了spring.jar，spring-webmvc.jar和所有其他所需的jar，因此不确定为什么会收到此错误。

这是我的web.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>Spring3-Hibernate</display-name>
  <welcome-file-list>
    <welcome-file>list.html</welcome-file>
  </welcome-file-list>
  <servlet>
    <servlet-name>spring</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>spring</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
</web-app>

和我的Spring-servlet.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:jee="http://www.springframework.org/schema/jee" xmlns:lang="http://www.springframework.org/schema/lang"
    xmlns:p="http://www.springframework.org/schema/p" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:util="http://www.springframework.org/schema/util"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
        http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">

    <context:annotation-config />
    <context:component-scan base-package="net.viralpatel.contact" />

    <bean id="jspViewResolver">
        <property name="viewClass"
            value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>

    <bean id="messageSource">
        <property name="basename" value="classpath:messages" />
        <property name="defaultEncoding" value="UTF-8" />
    </bean>

    <bean id="propertyConfigurer"p:location="/WEB-INF/jdbc.properties" />

    <bean id="dataSource"destroy-method="close" p:driverClassName="${jdbc.driverClassName}"
        p:url="${jdbc.databaseurl}" p:username="${jdbc.username}" p:password="${jdbc.password}" />

    <bean id="sessionFactory">
        <property name="dataSource" ref="dataSource" />
        <property name="configLocation">
            <value>classpath:hibernate.cfg.xml</value>
        </property>
        <property name="configurationClass">
            <value>org.hibernate.cfg.AnnotationConfiguration</value>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">${jdbc.dialect}</prop>
                <prop key="hibernate.show_sql">true</prop>
            </props>
        </property>
    </bean>

    <tx:annotation-driven />
    <bean id="transactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>

</beans>

我不确定这里出了什么问题，将不胜感激。我已经遍历了springsource论坛和有关SO的其他类似问题，但仍然无法正常工作。关于这里的路障有什么建议吗？

更新：

DispatcherServlet 错误消失了，但现在又出现另一个错误

堆栈跟踪：

SEVERE: StandardWrapper.Throwable
java.lang.NoSuchFieldError: APPLICATION_CONTEXT_ID_PREFIX
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:430)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:458)
    at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:339)
    at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:306)
    at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:127)
    at javax.servlet.GenericServlet.init(GenericServlet.java:160)
    at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1201)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1114)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1021)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4957)
    at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5284)
    at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5279)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)
Jul 18,2011 11:25:09 AM org.apache.catalina.core.StandardContext loadOnStartup
SEVERE: Servlet /MavenWeb threw load() exception
java.lang.NoSuchFieldError: APPLICATION_CONTEXT_ID_PREFIX
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:430)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:458)
    at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:339)
    at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:306)
    at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:127)
    at javax.servlet.GenericServlet.init(GenericServlet.java:160)
    at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1201)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1114)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1021)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4957)
    at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5284)
    at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5279)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:662)

更新部分类似的问题

Caused by: java.lang.ClassCastException: org.springframework.web.SpringServletContainerInitialize...

Caused by: java.lang.ClassCastException: org.springframework.web.SpringServletContainerInitialize...

报错

[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building pinyougou-sellergoods-service 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) > process-classes @ pinyougou-sellergoods-service >>>
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ pinyougou-sellergoods-service ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 1 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.2:compile (default-compile) @ pinyougou-sellergoods-service ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) < process-classes @ pinyougou-sellergoods-service <<<
[INFO] 
[INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ pinyougou-sellergoods-service ---
[INFO] Running war on http://localhost:9001/
[INFO] Creating Tomcat server configuration at D:\java  practice\pinyougou-parent\pinyougou-sellergoods-service\target\tomcat
[INFO] create webapp with contextPath: 
十一月 14, 2018 5:02:33 下午 org.apache.coyote.AbstractProtocol init
信息: Initializing ProtocolHandler ["http-bio-9001"]
十一月 14, 2018 5:02:33 下午 org.apache.catalina.core.StandardService startInternal
信息: Starting service Tomcat
十一月 14, 2018 5:02:33 下午 org.apache.catalina.core.StandardEngine startInternal
信息: Starting Servlet Engine: Apache Tomcat/7.0.47
十一月 14, 2018 5:02:33 下午 org.apache.catalina.core.ContainerBase startInternal
严重: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[]]
    at java.util.concurrent.FutureTask.report(FutureTask.java:122)
    at java.util.concurrent.FutureTask.get(FutureTask.java:192)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:800)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    ... 6 more
Caused by: java.lang.ClassCastException: org.springframework.web.SpringServletContainerInitializer cannot be cast to javax.servlet.ServletContainerInitializer
    at org.apache.catalina.startup.ContextConfig.getServletContainerInitializer(ContextConfig.java:1670)
    at org.apache.catalina.startup.ContextConfig.getServletContainerInitializers(ContextConfig.java:1652)
    at org.apache.catalina.startup.ContextConfig.processServletContainerInitializers(ContextConfig.java:1562)
    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1270)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:878)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:376)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5322)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 6 more

十一月 14, 2018 5:02:33 下午 org.apache.catalina.core.ContainerBase startInternal
严重: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]]
    at java.util.concurrent.FutureTask.report(FutureTask.java:122)
    at java.util.concurrent.FutureTask.get(FutureTask.java:192)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:302)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:732)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.startup.Tomcat.start(Tomcat.java:341)
    at org.apache.tomcat.maven.plugin.tomcat7.run.AbstractRunMojo.startContainer(AbstractRunMojo.java:1238)
    at org.apache.tomcat.maven.plugin.tomcat7.run.AbstractRunMojo.execute(AbstractRunMojo.java:592)
    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:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    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)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1131)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:800)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 6 more

[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.538 s
[INFO] Finished at: 2018-11-14T17:02:33+08:00
[INFO] Final Memory: 16M/207M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.tomcat.maven:tomcat7-maven-plugin:2.2:run (default-cli) on project pinyougou-sellergoods-service: Could not start Tomcat: Failed to start component [StandardServer[-1]]: Failed to start component [StandardService[Tomcat]]: Failed to start component [StandardEngine[Tomcat]]: A child container failed during start -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

pom.xml

<dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>        
            <scope>provided</scope>
        </dependency>

改为

<dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope>
        </dependency>

 

Caused by: java.lang.ClassNotFoundException: org.springframework.web.servlet.mvc.annotation.Annot...

Caused by: java.lang.ClassNotFoundException: org.springframework.web.servlet.mvc.annotation.Annot...

严重: StandardWrapper.Throwable
org.springframework.beans.factory.BeanCreationException: Error creating bean with name ''org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping'': Invocation of init method failed; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter] for bean with name ''org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter#0'' defined in class path resource [springmvc-context.xml]; nested exception is java.lang.ClassNotFoundException: org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter
Related cause: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter] for bean with name ''org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter#0'' defined in class path resource [springmvc-context.xml]; nested exception is java.lang.ClassNotFoundException: org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1745)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:576)

 

 

原因是Spring 3.x 和4.X处理JSON的一个类不一样，而这个东西又配置在xml文件中，所以编译时又无法发现

spring3.x是org.springframework.http.converter.json.MappingJacksonHttpMessageConverter

spring4.x是org.springframework.http.converter.json.MappingJackson2HttpMessageConverter

 

https://www.iteye.com/topic/1136145

1. <context:annotation-config/>隐式的向Spring 容器注册
AutowiredAnnotationBeanPostProcessor，CommonAnnotationBeanPostProcessor，
PersistenceAnnotationBeanPostProcessor以及RequiredAnnotationBeanPostProcessor这4 个BeanPostProcessor，解决了@Controller标识的类的bean的注入和使用。
2. <mvc:annotation-driven/>隐式注册了DefaultAnnotationHandlerMapping和AnnotationMethodHandlerAdapter两个bean，配置一些messageconverter，解决了@Controller注解的使用前提配置。
第一条中的配置一般在配置包扫描路径扫描之后将其移除，为什么呢：
<context:component-scan base-package="***.***"/> 该配置项其实也包含了自动注入上述"1"中四个bean processor的功能，因此当使用 <context:component-scan/> 后，就可以将 <context:annotation-config/>移除了。
你最后的疑问：不配置<mvc:annotation-driven/>，基本的访问应该是没问题，比如servlet mapping的配置是"*.do", ".do"这种请求可以被正确捕捉和处理，但是如果添加静态资源访问，你可能要将拦截改为"/"，此时你再次访问就会发现已经不能被正常拦截了，除非你加上<mvc:annotation-driven/>。<mvc:annotation- driven/>在初始化的时候会自动创建两个对 象，org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter 和 org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter

Gradle项目错误- java.lang.ClassNotFoundException：org.springframework.boot.SpringApplication

Gradle项目错误- java.lang.ClassNotFoundException：org.springframework.boot.SpringApplication

如何解决Gradle项目错误- java.lang.ClassNotFoundException：org.springframework.boot.SpringApplication？

错误是由于gradle 3.4的问题，我已将gradle分配更改为3.2，现在一切正常。

请参阅此以获取更多信息：https ://github.com/gradle/gradle/issues/1335

希望这能解决您的问题。

解决方法

这是我的主要应用代码：

package u.d.dip.rs.app;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;

@EnableWebSecurity
@SpringBootApplication
@ComponentScan(basePackages = "u.d.dip")
@EnableAutoConfiguration
public class DipApplication {
    public static void main(String[] args) {
        SpringApplication.run(DipApplication.class,args);
    }
}

我正在使用gradle构建项目。即使SpringApplication文件已正确导入，我也会收到以下错误：

Caused by: java.lang.ClassNotFoundException: org.springframework.boot.SpringApplication
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 6 more

Process finished with exit code 1

当我将鼠标悬停在SpringApplication上时，我收到了以下gradle消息

[Gradle: org.springframework.boot:spring-boot:1.5.1.RELEASE] org.springframework.boot public class SpringApplication extends Object

任何帮助将非常感激。提前致谢！

java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet

java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet

1、启动项目报如下所示错误：

 1 java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet
 2     at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1335)
 3     at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1163)
 4     at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:542)
 5     at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:523)
 6     at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:150)
 7     at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1091)
 8     at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1027)
 9     at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5037)
10     at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5347)
11     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
12     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408)
13     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398)
14     at java.util.concurrent.FutureTask.run(FutureTask.java:266)
15     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
16     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
17     at java.lang.Thread.run(Thread.java:748)

如下图所示错误：

解决方法如下所示：

自己的项目上右键 properties，Deployment Assembly -> Add -> Java Build Path Entries -> Next -> Maven Dependencies -> Finish -> Apply -> Apply and Close，配置完后如下图：

 

 

 再次启动你的项目就可以了。

 

我们今天的关于问题-java.lang.ClassNotFoundException：org.springframework.web.servlet.DispatcherServlet和问题的英文的分享已经告一段落，感谢您的关注，如果您想了解更多关于Caused by: java.lang.ClassCastException: org.springframework.web.SpringServletContainerInitialize...、Caused by: java.lang.ClassNotFoundException: org.springframework.web.servlet.mvc.annotation.Annot...、Gradle项目错误- java.lang.ClassNotFoundException：org.springframework.boot.SpringApplication、java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet的相关信息，请在本站查询。

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