java.lang.ClassNotFoundException: javax.ws.rs.client.RxInvokerProvider

【问题标题】：java.lang.ClassNotFoundException: javax.ws.rs.client.RxInvokerProviderjava.lang.ClassNotFoundException: javax.ws.rs.client.RxInvokerProvider
【发布时间】：2018-01-13 18:28:01
【问题描述】：

我正在尝试使用 loginServlet 从 jsp 页面登录。它重定向到 servlet，但不进行身份验证并引发错误。代码如下：

JSP 文件：

<div class="container">
        <div class="row">
            <div class="box">
                <div class="col-md-6 col-md-offset-4">

                    <h2 class="intro-text">Welcome! Login here:</h2>


                    <form class="form-horizontal" action="LoginServlet" method="POST">
                        <div class="form-group">
                            <label class="control-label col-sm-2" for="username">Username:</label>
                            <div class="col-sm-4">
                                <input type="text" class="form-control" id="username" placeholder="Enter username" name="un">
                            </div>
                        </div>
                        <div class="form-group">
                            <label class="control-label col-sm-2" for="pwd">Password:</label>
                            <div class="col-sm-4">
                                <input type="password" class="form-control" id="pwd" placeholder="Enter password" name="pwd">
                            </div>
                        </div>

                        <div class="form-group">
                            <div class="col-sm-offset-2 col-sm-4">
                                <div class="checkbox">
                                    <label><input type="checkbox" name="remember"> Remember me</label>
                                </div>
                            </div>
                        </div>
                        <div class="form-group">
                            <div class="col-sm-offset-2 col-sm-4">
                                <button type="submit" class="btn btn-success">Submit</button>
                            </div>
                        </div>
                    </form>
                </div>

            </div>
        </div>
    </div>

LoginServlet：

@WebServlet("/LoginServlet")
public class LoginServlet extends HttpServlet {


public void doPost(HttpServletRequest request, HttpServletResponse response) 
                       throws ServletException, java.io.IOException {


try
{       

     User user = new User();
     user.setUsername(request.getParameter("un"));
     user.setPassword(request.getParameter("pwd"));

     PrintWriter writer = response.getWriter();

     // build HTML code
     String htmlRespone = "<html>";
     htmlRespone += "<h2>Your username is: " + user.getUsername() + "<br/>";      
     htmlRespone += "Your password is: " + user.getPassword() + "</h2>";    
     htmlRespone += "</html>";

     writer.println(htmlRespone);

     if (authUser(user))
     {
          System.out.println("exists!");
          HttpSession session = request.getSession(true);       
          session.setAttribute("currentSessionUser",user); 
          response.sendRedirect("home.jsp"); //logged-in page           
     }

     else {
         System.out.println("not!");
            response.sendRedirect("invalidLogin.jsp"); //error page 
     }

} 


catch (Throwable theException)      
{
     System.out.println(theException); 
}
       }

    public boolean authUser(User user) {
        // TODO Auto-generated method stub
        User userDB = UserDAO.getUserByUsername(user.getUsername());
        System.out.println(userDB.getUsername()+" "+userDB.getPassword());
        System.out.println(user.getUsername()+" "+user.getPassword());

        if (userDB != null && userDB.getUsername().equals(user.getUsername()) && userDB.getPassword().equals(user.getPassword())) {
            return true;
        } else {
            return false;
        }
    }

}

来自 UserDAO 的 getUserByUsername 方法：

public static User getUserByUsername(String username) {

        Session session = factory.openSession();
        Transaction tx = null;
        List<User> users = null;

            tx = session.beginTransaction();
            Query query = session.createQuery("FROM User WHERE username = :username ");
             query.setParameter("username", username);
            List<User> result = query.list();

            tx.commit();

        return result != null && !result.isEmpty() ? result.get(0) : null;

    }

POM 文件：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

    <modelVersion>4.0.0</modelVersion>

    <groupId>org.paul.licenta</groupId>
    <artifactId>teachApp</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>teachApp</name>

    <build>
        <finalName>teachApp</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>org.hibernate</groupId>
            <artifactId>hibernate-commons-annotations</artifactId>
            <version>3.0.0.ga</version>
        </dependency>

        <dependency>
               <groupId>org.hibernate</groupId>
               <artifactId>hibernate-annotations</artifactId>
               <version>3.3.0.GA</version>
         </dependency>
        <dependency>
            <groupId>javax.ws.rs</groupId>
            <artifactId>javax.ws.rs-api</artifactId>
            <version>2.0-m08</version>
        </dependency>
        <dependency>
            <groupId>javax.transaction</groupId>
            <artifactId>jta</artifactId>
            <version>1.1</version>
        </dependency>
           <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.0.1</version>
    </dependency>
        <dependency>
        <groupId>commons-codec</groupId>
        <artifactId>commons-codec</artifactId>
        <version>1.10</version>
    </dependency>
    <dependency>
         <groupId>commons-logging</groupId>
         <artifactId>commons-logging</artifactId>
         <version>1.1.1</version>
    </dependency>

        <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>4.3.10.Final</version>
    </dependency>

        <dependency>
          <groupId>com.google.guava</groupId>
          <artifactId>guava</artifactId>
          <version>22.0</version>
        </dependency>


    <!-- for JPA, use hibernate-entitymanager instead of hibernate-core -->
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>4.3.10.Final</version>
    </dependency>
        <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.34</version>
    </dependency>
    <dependency>
       <groupId>org.hibernate</groupId>
       <artifactId>hibernate-search-orm</artifactId>
       <version>5.3.0.Final</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
        <dependency>
        <groupId>javax.ws.rs</groupId>
        <artifactId>javax.ws.rs-api</artifactId>
        <version>2.0</version>
    </dependency>
        <!-- uncomment this to get JSON support
        <dependency>
            <groupId>org.glassfish.jersey.media</groupId>
            <artifactId>jersey-media-moxy</artifactId>
        </dependency>
        -->
    </dependencies>
    <properties>
        <jersey.version>2.26-b03</jersey.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
</project>

这是我得到的错误：

SEVERE: StandardWrapper.Throwable
java.lang.NoClassDefFoundError: javax/ws/rs/client/RxInvokerProvider
    at org.glassfish.jersey.internal.inject.Providers.getJaxRsProviderInterfaces(Providers.java:114)
    at org.glassfish.jersey.internal.inject.Providers.<clinit>(Providers.java:87)
    at org.glassfish.jersey.model.internal.ComponentBag.modelFor(ComponentBag.java:435)
    at org.glassfish.jersey.model.internal.ComponentBag.lambda$registerModel$5(ComponentBag.java:394)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:228)
    at org.glassfish.jersey.model.internal.ComponentBag.registerModel(ComponentBag.java:386)
    at org.glassfish.jersey.model.internal.ComponentBag.register(ComponentBag.java:297)
    at org.glassfish.jersey.model.internal.CommonConfig.register(CommonConfig.java:459)
    at org.glassfish.jersey.server.ResourceConfig.register(ResourceConfig.java:447)
    at org.glassfish.jersey.servlet.WebComponent.<init>(WebComponent.java:332)
    at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:178)
    at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:370)
    at javax.servlet.GenericServlet.init(GenericServlet.java:158)
    at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1269)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1182)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1072)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5368)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5660)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1571)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1561)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: javax.ws.rs.client.RxInvokerProvider
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1892)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735)
    ... 27 more

Aug 06, 2017 11:27:45 AM org.apache.catalina.core.StandardContext loadOnStartup
SEVERE: Servlet [Jersey Web Application] in web application [/teachApp] threw load() exception
java.lang.ClassNotFoundException: javax.ws.rs.client.RxInvokerProvider
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1892)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735)
    at org.glassfish.jersey.internal.inject.Providers.getJaxRsProviderInterfaces(Providers.java:114)
    at org.glassfish.jersey.internal.inject.Providers.<clinit>(Providers.java:87)
    at org.glassfish.jersey.model.internal.ComponentBag.modelFor(ComponentBag.java:435)
    at org.glassfish.jersey.model.internal.ComponentBag.lambda$registerModel$5(ComponentBag.java:394)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:228)
    at org.glassfish.jersey.model.internal.ComponentBag.registerModel(ComponentBag.java:386)
    at org.glassfish.jersey.model.internal.ComponentBag.register(ComponentBag.java:297)
    at org.glassfish.jersey.model.internal.CommonConfig.register(CommonConfig.java:459)
    at org.glassfish.jersey.server.ResourceConfig.register(ResourceConfig.java:447)
    at org.glassfish.jersey.servlet.WebComponent.<init>(WebComponent.java:332)
    at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:178)
    at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:370)
    at javax.servlet.GenericServlet.init(GenericServlet.java:158)
    at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1269)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1182)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1072)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5368)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5660)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1571)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1561)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

Aug 06, 2017 11:27:45 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
Aug 06, 2017 11:27:45 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
Aug 06, 2017 11:27:45 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 9144 ms
java.lang.NoSuchMethodError: org.hibernate.SessionFactory.openSession()Lorg/hibernate/Session;

我尝试添加互联网上建议的其他罐子以及我在这里找到的其他一些东西，但到目前为止没有任何效果。我希望它在身份验证后将我重定向到指定的页面。有什么想法吗？

非常感谢！

【问题讨论】：

    标签： hibernate jsp tomcat servlets jersey


    【解决方案1】：

    实际上我也遇到了同样的问题。我的解决方案基于以下几点：

    • RxInvokerProvider 位于 jaxrs-api 中，版本为 2.1 -> 您引用的是 2.0

    • jersey 2.26 依赖于 jaxrs 2.1

    在此问题之后，您将面临“注入”问题 (https://github.com/jersey/jersey/blob/12e5d8bdf22bcd2676a1032ed69473cf2bbc48c7/docs/src/main/docbook/migration.xml)，因此您将需要 jersey-hk 依赖项

     <dependency>
            <groupId>org.glassfish.jersey.inject</groupId>
            <artifactId>jersey-hk2</artifactId>
            <version>${jersey.version}</version> 
</dependency>

    【讨论】：

      【解决方案2】：

      java.lang.ClassNotFoundException: javax.ws.rs.client.RxInvokerProvider 异常发生在初始化期间，而不是在登录期间。请求只会在您声明的日志中的最后几行之后处理：INFO: Starting ProtocolHandler ["http-bio-8080"]。

      为了找到这个异常的根本原因，在调试器中运行你的tomcat，在ClassNotFoundException上设置一个异常断点并检查Servlet的实际类型（在stacktrace中有GenericServlet.init()）。这将是您需要修复的 servlet。很可能通过将所需的代码（或任何传递依赖项）添加到类路径。

      除此之外，这段代码在很多层面上都是错误的：

      • 在重定向之前将输出写入响应：文本发送到浏览器后，您将无法再进行重定向，因为这需要写入 HTTPS 标头。当它们已经被发送时，你就不走运了，并且会产生更多的异常。
      • 您的事务中没有从任何异常中恢复（例如，提交/回滚应该在 finally 块中） - 但至少您不容易发生 SQL 注入。
      • 您将明文密码存储在数据库中
      • 当这个问题早已解决时，您正在实施自己的登录，例如通过容器（阅读 servlet 规范）

      【讨论】：

      • 感谢您的回复！我解决了错误的代码情况，但仍然找不到关于最后一个要点的明确内容，即来自 servlet 规范的容器。所以我不确定我现在是否应该专注于解决我的 servlet 问题或学习容器并将它们用于身份验证
      • 如果我从主类运行相同的方法，authUser(User)，它工作得很好。为什么从 servlet 内部引起问题？如果我没有从 serverlet 向数据库发出任何请求，而只是与一些硬编码的用户和密码进行比较，它也可以工作。我对 servlet 真的很陌生，我真的很挣扎这种情况
      • authUser 不会引起问题，至少在您发布的堆栈跟踪中不会引起问题。确保所有必需的依赖项（jar 文件）都部署在 WEB-INF/lib 中以摆脱 CnF-exveption。并接受异常（至少是您在问题中发布的异常）在您进行身份验证之前发生的方式。您的身份验证问题是独立问题还是后续问题 - 我无法判断，因为我没有看到身份验证失败。
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