ServletContainer class not found Exception

问题

I cannot compile my jersey project anymore and I get the following exception:

GRAVE: Servlet /Project-API threw load() exception
java.lang.ClassNotFoundException: com.sun.jersey.spi.container.servlet.ServletContainer
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1713)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1558)
    at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:527)
    at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:509)
    at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:137)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1144)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1088)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5033)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5317)
    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:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

I read on SO that it might be caused by my pom but I cannot figure out how to fix it.

Here is my pom

 ...
<dependencies>

 <!-- http://mvnrepository.com/artifact/joda-time/joda-time -->
<dependency>
    <groupId>joda-time</groupId>
    <artifactId>joda-time</artifactId>
    <version>2.3</version>
</dependency>

 <!-- http://mvnrepository.com/artifact/com.sun.jersey/jersey-server -->
<dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-server</artifactId>
    <version>1.19.1</version>
</dependency>
<!-- http://mvnrepository.com/artifact/com.sun.jersey/jersey-bundle -->
<dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-bundle</artifactId>
    <version>1.19.1</version>
</dependency>

<dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-core</artifactId>
    <version>1.19.1</version>
</dependency>

<dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-server</artifactId>
    <version>1.19.1</version>
</dependency>

<dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-client</artifactId>
    <version>1.19.1</version>
</dependency>

    <dependency>
        <groupId>com.sun.jersey</groupId>
        <artifactId>jersey-json</artifactId>
        <version>1.19</version>
    </dependency>

 <dependency>
        <groupId>com.sun.jersey.contribs</groupId>
        <artifactId>jersey-multipart</artifactId>
        <version>1.19.1</version>
    </dependency>

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.15</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-core</artifactId>
        <version>2.7.0</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-annotations</artifactId>
        <version>2.7.0</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.7.0</version>
    </dependency>
      <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.17</version>
      </dependency>

    <dependency> 
        <groupId>org.expressme</groupId> 
        <artifactId>JOpenId</artifactId> 
        <version>1.08</version> 
    </dependency>

    <dependency> 
        <groupId>org.openid4java</groupId> 
        <artifactId>openid4java</artifactId> 
        <version>1.0.0</version> 
    </dependency>

    <dependency>
        <groupId>oauth.signpost</groupId>
        <artifactId>signpost-core</artifactId>
        <version>1.2.1.2</version>
    </dependency>

    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>4.3.2</version>
    </dependency>
</dependencies>

web.xml

...
  <servlet>
    <servlet-name>jersey-serlvet</servlet-name>
    <servlet-class>
                     com.sun.jersey.spi.container.servlet.ServletContainer
        </servlet-class>
    <init-param>
      <param-name>com.sun.jersey.config.property.packages</param-name>
      <param-value>...</param-value>
    </init-param>
    <init-param>
      <param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name>
      <param-value>true</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>jersey-serlvet</servlet-name>
    <url-pattern>/rest/*</url-pattern>
  </servlet-mapping>

...

maven dep.

I am using Tomcat 7

回答1:

Here is the minimal set up that just works for Jersey 1. Compare with your version.

web.xml

<?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_3_0.xsd"
     version="3.0">
<display-name>Rest-Jersey1</display-name>
<welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
</welcome-file-list>

<servlet>
    <servlet-name>Jersey Web Application</servlet-name>
    <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>Jersey Web Application</servlet-name>
    <url-pattern>/rest/*</url-pattern>
</servlet-mapping>
</web-app>

pom.xml

<groupId>Jersey_Maven_App</groupId>
<artifactId>com.jersey.app</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>

<properties>
<jdk.version>1.8</jdk.version>
<jersey.version>1.19.1</jersey.version>
</properties>

<dependencies>
    <dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-bundle</artifactId>
    <version>${jersey.version}</version>
    </dependency>
    <dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-server</artifactId>
    <version>${jersey.version}</version>
    </dependency>
    <dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-core</artifactId>
    <version>${jersey.version}</version>
    </dependency>
    <dependency>
    <groupId>asm</groupId>
    <artifactId>asm</artifactId>
    <version>20041228.180559</version>
    </dependency>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
    <source>${jdk.version}</source>
    <target>${jdk.version}</target>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>

Add your repository to pull these jars.

回答2:

Here's how you solve this sort of problem. You are missing a class, so obviously you need this class in your dependencies. What dependency can you add that contains the missing class?

You can search resources like GrepCode or the Maven Central Repository for your missing class (both those links search for this missing class, by way of example).

Now we know that the missing dependency is com.sun.jersey:jersey-servlet so add this to your dependencies:

<dependency>
  <groupId>com.sun.jersey</groupId>
  <artifactId>jersey-servlet</artifactId>
  <version>1.17.1</version>
</dependency>

By way of a suggestion, I notice that most of your Jersey dependencies are version 1.17.1 but you have one 1.19 in there ... you should probably try to stick to the same version for all of them to avoid any inconsistencies between them.

Also, if these libraries are included in your application server (like Glassfish or Weblogic, etc) then you should have <scope>provided</scope> on all of them. But if you're using something like Tomcat, then forget this (unless you're manually adding them to Tomcat's lib directory).

回答3:

Do you have the servlet class defined in your web.xml?

It needs to be as follows for jersey 1.x versions:

<servlet>  
    <servlet-class>
        com.sun.jersey.spi.container.servlet.ServletContainer
    </servlet-class>
    <init-param>
        <param-name>com.sun.jersey.config.property.packages</param-name>
        <param-value>com.sample.rest</param-value>
    </init-param>
</servlet>

Make sure you don't mix jersey 1.x with 2.x

You have a couple of library collisions in your pom.xml

You have 2 different javax.servlet dependencies in your pom. Make sure you have one of them. (I'm not sure but I don't think you need to add this either as jersey would have it, check and confirm)
Further, you have a dependency javax.ws.rs-api, this conflicts with jersey as jersey already includes it.

Even if these don't fix this particular problem, remove these collisions to avoid further issues.

for more information: link1 link2

来源：https://stackoverflow.com/questions/37572865/servletcontainer-class-not-found-exception

标签

java

maven

jersey