Java Servlet appServlet的HTTP状态500-Servlet.init（）引发异常_Java_Servlets

Java Servlet appServlet的HTTP状态500-Servlet.init（）引发异常

java servlets

Java Servlet appServlet的HTTP状态500-Servlet.init（）引发异常,java,servlets,Java,Servlets,我想尝试一个简单的程序，但得到以下错误。我正在使用EclipseKelper和Tomcat7.0。我尝试了很多东西，但都不管用 HTTP Status 500 - Servlet.init() for servlet appServlet threw exception type Exception report message Servlet.init() for servlet appServlet threw exception description The server enco

我想尝试一个简单的程序，但得到以下错误。我正在使用EclipseKelper和Tomcat7.0。我尝试了很多东西，但都不管用

HTTP Status 500 - Servlet.init() for servlet appServlet threw exception
type Exception report

message Servlet.init() for servlet appServlet threw exception

description The server encountered an internal error that prevented it from fulfilling this request.

exception 

javax.servlet.ServletException: Servlet.init() for servlet appServlet threw exception
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
    org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    java.lang.Thread.run(Unknown Source)


root cause 

java.lang.IllegalArgumentException
    org.springframework.asm.ClassReader.<init>(Unknown Source)
    org.springframework.asm.ClassReader.<init>(Unknown Source)
    org.springframework.asm.ClassReader.<init>(Unknown Source)
    org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:52)
    org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:80)
    org.springframework.core.type.classreading.CachingMetadataReaderFactory.getMetadataReader(CachingMetadataReaderFactory.java:102)
    org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:76)
    org.springframework.context.annotation.ConfigurationClassParser.getImports(ConfigurationClassParser.java:298)
    org.springframework.context.annotation.ConfigurationClassParser.getImports(ConfigurationClassParser.java:300)
    org.springframework.context.annotation.ConfigurationClassParser.getImports(ConfigurationClassParser.java:300)
    org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:230)
    org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:153)
    org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:130)
    org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:285)
    org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:223)
    org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:630)
    org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:461)
    org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:652)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:600)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:666)
    org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:519)
    org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:460)
    org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
    javax.servlet.GenericServlet.init(GenericServlet.java:160)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
    org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    java.lang.Thread.run(Unknown Source)


note The full stack trace of the root cause is available in the Apache Tomcat/7.0.47 logs.

有人能解释一下问题是什么吗？

尝试此配置或相应地重命名配置：我更喜欢将servlet命名为“dispatcher”，将其上下文文件命名为dispatcher-servlet.xml。这对我很管用

<servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/spring/appServlet/dispatcher-servlet.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

 <servlet-mapping>
  <servlet-name>dispatcher</servlet-name>
  <url-pattern>/</url-pattern>
 </servlet-mapping>


调度员
org.springframework.web.servlet.DispatcherServlet
上下文配置位置
/WEB-INF/spring/appServlet/dispatcher-servlet.xml
1.
调度员
/

尝试此配置或相应地重命名配置：我更喜欢将servlet命名为“dispatcher”，将其上下文文件命名为dispatcher-servlet.xml。这对我很管用

<servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/spring/appServlet/dispatcher-servlet.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

 <servlet-mapping>
  <servlet-name>dispatcher</servlet-name>
  <url-pattern>/</url-pattern>
 </servlet-mapping>


调度员
org.springframework.web.servlet.DispatcherServlet
上下文配置位置
/WEB-INF/spring/appServlet/dispatcher-servlet.xml
1.
调度员
/

Servlet.init（）错误主要是由于spring MVC的Jar文件版本不匹配引起的，右键单击project>properties>build路径查看所有库，并删除任何不匹配的Jar版本

还要从lib文件夹中删除jar库。重新构建项目并运行它。

Servlet.init（）错误主要是由于spring MVC的Jar文件版本不匹配引起的。右键单击项目>属性>构建路径，查看所有库，然后删除任何不匹配的Jar版本

还要从lib文件夹中删除jar库。重新构建项目并运行它。

尝试以下操作： servlet-context.xml：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-1.1"> 
  <dep:environment xmlns:dep="http://geronimo.apache.org/xml/ns/deployment-1.1">
    <dep:moduleId>
      <dep:groupId>org.apache.geronimo.samples.jws</dep:groupId>
      <dep:artifactId>Calculator</dep:artifactId> 
      <dep:version>1.0</dep:version> 
      <dep:type>car</dep:type>
    </dep:moduleId>
    <dep:dependencies>
    </dep:dependencies>
  </dep:environment>
  <context-root>/jaxws-calculator-1.0</context-root>
  <service-ref> 
    <service-ref-name>services/Calculator</service-ref-name>
    <port> 
      <port-name>CalculatorPort</port-name>
      <protocol>http</protocol>
      <host>localhost</host> 
      <port>8080</port> 
      <uri>/jaxws-calculator/calculator</uri> 
    </port>
  </service-ref>
</web-app>


org.apache.geronimo.samples.jws
计算器
1
汽车
/jaxws-calculator-1.0
服务/计算器
计算器端口
http
本地主机
8080
/jaxws计算器/计算器

试试这个： servlet-context.xml：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-1.1"> 
  <dep:environment xmlns:dep="http://geronimo.apache.org/xml/ns/deployment-1.1">
    <dep:moduleId>
      <dep:groupId>org.apache.geronimo.samples.jws</dep:groupId>
      <dep:artifactId>Calculator</dep:artifactId> 
      <dep:version>1.0</dep:version> 
      <dep:type>car</dep:type>
    </dep:moduleId>
    <dep:dependencies>
    </dep:dependencies>
  </dep:environment>
  <context-root>/jaxws-calculator-1.0</context-root>
  <service-ref> 
    <service-ref-name>services/Calculator</service-ref-name>
    <port> 
      <port-name>CalculatorPort</port-name>
      <protocol>http</protocol>
      <host>localhost</host> 
      <port>8080</port> 
      <uri>/jaxws-calculator/calculator</uri> 
    </port>
  </service-ref>
</web-app>


org.apache.geronimo.samples.jws
计算器
1
汽车
/jaxws-calculator-1.0
服务/计算器
计算器端口
http
本地主机
8080
/jaxws计算器/计算器

您是否错过了问题中的

servlet context.xml

？您使用的是哪种JDK？Spring的哪个版本？您是否错过了问题中的

servlet context.xml

？您使用的是哪个JDK？哪个版本的Spring？