java.lang.ClassNotFoundException: com.sun.jersey.spi.container.servlet.ServletContainer [英] java.lang.ClassNotFoundException: com.sun.jersey.spi.container.servlet.ServletContainer

问题描述

我正在尝试使用 Jersey + Google 应用引擎构建一个简单的 hello world 应用程序，为期两天.对于简单的 AppEngine 项目，我遵循了这些教程，两者都运行良好https://developers.google.com/appengine/docs/java/gettingstarted/creatinghttps://developers.google.com/appengine/docs/java/webtoolsplatform

I am trying to build a simple hello world application for two days using Jersey + Google app engine. For simple AppEngine project I followed these tutorials and both works just fine https://developers.google.com/appengine/docs/java/gettingstarted/creating https://developers.google.com/appengine/docs/java/webtoolsplatform

但现在我正在尝试添加 Jersey 并遵循本教程 http://www.vogella.com/articles/REST/article.html.

But now I am trying to add Jersey and following this tutorial http://www.vogella.com/articles/REST/article.html.

但是服务器一直给我

java.lang.ClassNotFoundException: com.sun.jersey.spi.container.servlet.ServletContainer

java.lang.ClassNotFoundException: com.sun.jersey.spi.container.servlet.ServletContainer

当我在 web.xml 中添加这些行时:

when I add these lines in 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_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>TestServer</display-name>
<servlet>
    <servlet-name>Jersey REST Service</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>com.test.myproject</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>Jersey REST Service</servlet-name>
    <url-pattern>/rest/*</url-pattern>
</servlet-mapping>
</web-app>

我已从 此处JAX-RS 2.1 RI 包> 并按照教程中的说明在 WEB-INF/lib 文件夹中添加了所有 jar 文件.即使两天后也没有任何效果.我在谷歌上搜索了几次，显然使用 Maven 的人已经以某种方式解决了它，但我没有使用 Maven，编写该教程的人也没有使用.

I have downloaded Jersey JAX-RS 2.1 RI bundle from here and have added all jar files in WEB-INF/lib folder as described in tutorial. And even after two days nothing is working. I have searched several times on Google and apparently people who are using Maven have solved it somehow but I am not using Maven neither did the guy who wrote that tutorial.

只是为了检查在导入的 Jersey jars 中是否存在 com.sun.jersey.spi.container.servlet.ServletContainer 我试图在Java 并让智能感知完成名称，但在 com.sun.je 之后我无法获得任何智能感知，所以我最后的猜测是在最新的 Jersey 中进行了一些包重新排列build 和 jersey 不再位于 com.sun 中.我已经筋疲力尽了，如果能得到任何帮助，我将不胜感激.

Just to check if even com.sun.jersey.spi.container.servlet.ServletContainer exists in imported Jersey jars I tried to just write this fully qualified name in Java and let the intellisense finish names but I couldn't get any intellisense after com.sun.je so my last guess is that there have been some package rearrangement in latest Jersey build and jersey is no longer inside com.sun. I am exhausted and I would appreciate any kind of help.

推荐答案

您已下载 Jersey 2(JAX-RS 2 的 RI).您所指的教程使用 Jersey 1. 从 (这里)，对你来说应该足够了.

You have downloaded Jersey 2 (which RI of JAX-RS 2). The tutorial you're referring to uses Jersey 1. Download Jersey 1.17.1 from (here), should be sufficient for you.

Jersey 1 使用 com.sun.jersey，而 Jersey 2 使用 org.glassfish.jersey 因此例外.

Jersey 1 uses com.sun.jersey, and Jersey 2 uses org.glassfish.jersey hence the exception.

另请注意，以 com.sun.jersey 开头的 init-param 也不会被 Jersey 2 识别.

Also note that also init-param starting with com.sun.jersey won't be recognized by Jersey 2.

在泽西岛 2 注册资源和提供者 包含有关如何在 Jersey 2 中注册类/实例的其他信息.

Registering Resources and Providers in Jersey 2 contains additional info on how to register classes/instances in Jersey 2.

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