使用jaxrs-ri-2.25.1做restful报错：java.lang.ClassNotFoundException

工具：eclipse
tomcat 7.0
jar包
数据类：
import java.io.Serializable;

import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement(name="userData")
public class UserData implements Serializable{
private int age;
private String name;

public UserData() {
    super();
}

public UserData(int age, String name) {
    super();
    this.age = age;
    this.name = name;
}

public int getAge() {
    return age;
}

@XmlElement
public void setAge(int age) {
    this.age = age;
}

public String getName() {
    return name;
}

@XmlElement
public void setName(String name) {
    this.name = name;
}
service层：
package com.entity;

import java.util.ArrayList;
import java.util.List;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

import com.entity.UserData;

@Path("/RestfulService")
public class RestfulService {

@GET
@Path("/getUser")
@Produces(MediaType.APPLICATION_XML)
public  List<UserData> getData(){

    UserData userData = new UserData();
    userData.setAge(2);
    userData.setName("33");
    List<UserData> list = new ArrayList<>();
    list.add(userData);
    return list;
}

}
使用postman测试出错
后台：
java.lang.ClassNotFoundException: org.glassfish.jersey.servlet.ServletContainer
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:532)
at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:514)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:133)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1136)
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:857)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:136)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
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:724)
请帮忙看下

重新试了一遍：在官方下载的jar解压后在api ext lib三个子目录下，我将这三个目录带文件夹一起复制到WEB-INF 的 lib下 ，然后加载，启动项目后，一直报错
java.lang.ClassNotFoundException: org.glassfish.jersey.servlet.ServletContainer 查了下，这些jar包有相互依赖，所以全部复制到lib下（在同一个目录下），测试成功