java.lang.ClassCastException:org.glassfish.jersey.servlet.ServletContainer无法转换为javax.servlet.Servlet

本文介绍了java.lang.ClassCastException:org.glassfish.jersey.servlet.ServletContainer无法转换为javax.servlet.Servlet的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

由于以下错误，我无法在Tomcat 7.0服务器上启动我的Web应用程序:

I'm unable to start my webapp on my Tomcat 7.0 Server because of the following error :

java.lang.ClassCastException: org.glassfish.jersey.servlet.ServletContainer cannot be cast to javax.servlet.Servlet

我的web.xml，其中包括ServlectContainer:

My web.xml , which include the ServlectContainer :

<?xml version="1.0" encoding="UTF-8"?> <!-- This web.xml file is not required when using Servlet 3.0 container, see implementation details jersey.java/nonav/documentation/latest/jax-rs.html --> <web-app version="2.5" xmlns="java.sun/xml/ns/javaee" xmlns:xsi="www.w3/2001/XMLSchema-instance" xsi:schemaLocation="java.sun/xml/ns/javaee java.sun/xml/ns/javaee/web-app_2_5.xsd"> <servlet> <servlet-name>Jersey Web Application</servlet-name> <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class> <init-param> <param-name>jersey.config.server.provider.packages</param-name> <param-value>fr.tessi</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>Jersey Web Application</servlet-name> <url-pattern>/webapi/*</url-pattern> </servlet-mapping> </web-app>

这是我的pom.xml:

And here's my pom.xml :

<project xmlns="maven.apache/POM/4.0.0" xmlns:xsi="www.w3/2001/XMLSchema-instance" xsi:schemaLocation="maven.apache/POM/4.0.0 maven.apache/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>fr.tessi</groupId> <artifactId>cassandra-cli-back</artifactId> <packaging>war</packaging> <version>1.0-SNAPSHOT</version> <name>cassandra-cli-back</name> <build> <finalName>cassandra-cli-back</finalName> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.5.1</version> <inherited>true</inherited> <configuration> <source>1.7</source> <target>1.7</target> </configuration> </plugin> </plugins> </build> <dependencyManagement> <dependencies> <dependency> <groupId>org.glassfish.jersey</groupId> <artifactId>jersey-bom</artifactId> <version>${jersey.version}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <dependencies> <dependency> <groupId>org.glassfish.jersey.containers</groupId> <artifactId>jersey-container-servlet-core</artifactId> <!-- use the following artifactId if you don't need servlet 2.x compatibility --> <!-- artifactId>jersey-container-servlet</artifactId --> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>${jackson-2-version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.jaxrs</groupId> <artifactId>jackson-jaxrs-json-provider</artifactId> <version>${jackson-2-version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>${jackson-2-version}</version> </dependency> <dependency> <groupId>org.glassfish.jersey.media</groupId> <artifactId>jersey-media-moxy</artifactId> </dependency> <dependency> <groupId>comflix.astyanax</groupId> <artifactId>astyanax-core</artifactId> <version>1.56.48</version> </dependency> <dependency> <groupId>comflix.astyanax</groupId> <artifactId>astyanax-cassandra</artifactId> <version>1.56.48</version> </dependency> <dependency> <groupId>comflix.astyanax</groupId> <artifactId>astyanax-thrift</artifactId> <version>1.56.48</version> </dependency> <!-- <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.6.1</version> </dependency> --> </dependencies> <properties> <jersey.version>2.6</jersey.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <jackson-2-version>2.4.3</jackson-2-version> </properties>

尽管'servlet-api'依赖项提供了范围，但仍在stratup上下载.

Despite the scope provided on the 'servlet-api' dependency, it's still downloaded on stratup.

已经尝试用在StackOverFlow和其他网站上找到的倍数类更改servlet类，但没有结果.它不断发送错误.

Already tried to change the servlet-class with multiples classes found on StackOverFlow and other websites, but no results. It keep sending an error.

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推荐答案

我的同事解决了这个问题.基本上，依赖关系会发生冲突.这是功能依赖项的列表:

My colleague sorted out the problem. Basically, dependencies conflict. Here is the functionnal dependencies' list :

<dependencyManagement> <dependencies> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> </dependencies> </dependencyManagement> <dependencies> <dependency> <groupId>org.glassfish.jersey.containers</groupId> <!-- if your container implements Servlet API older than 3.0, use "jersey-container-servlet-core" --> <artifactId>jersey-container-servlet</artifactId> <version>2.13</version> </dependency> <!-- Required only when you are using JAX-RS Client --> <dependency> <groupId>org.glassfish.jersey.core</groupId> <artifactId>jersey-client</artifactId> <version>2.13</version> </dependency> <dependency> <groupId>org.glassfish.jersey.media</groupId> <artifactId>jersey-media-json-jackson</artifactId> <version>2.13</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>${jackson-2-version}</version> </dependency> <dependency> <!-- note: typically only ".0" patch version exists for core annotations --> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>${jackson-2-version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.jaxrs</groupId> <artifactId>jackson-jaxrs-json-provider</artifactId> <version>${jackson-2-version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>${jackson-2-version}</version> </dependency> <dependency> <groupId>comflix.astyanax</groupId> <artifactId>astyanax-core</artifactId> <version>1.56.48</version> </dependency> <dependency> <groupId>comflix.astyanax</groupId> <artifactId>astyanax-cassandra</artifactId> <version>1.56.48</version> <exclusions> <exclusion> <artifactId>servlet-api</artifactId> <groupId>org.mortbay.jetty</groupId> </exclusion> </exclusions> </dependency> <dependency> <groupId>comflix.astyanax</groupId> <artifactId>astyanax-thrift</artifactId> <version>1.56.48</version> </dependency> <!-- <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.6.1</version> </dependency> --> </dependencies> <properties> <jersey.version>2.13</jersey.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <jackson-2-version>2.4.3</jackson-2-version> </properties>