Java开发网 - 请帮忙看看这个简单的spring程序是什么问题?

Java开发网

您没有登录

» Java开发网 » Architecture & Framework » Spring Framework

打印话题 寄给朋友 订阅主题

作者

请帮忙看看这个简单的spring程序是什么问题?

benbon

发贴: 14
积分: 0

于 2006-03-17 14:57

错误如下:
exception

javax.servlet.ServletException: Error instantiating servlet class net.testSpring.servlet.MainServlet
  org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
  org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
  org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
  org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
  org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
  org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
  java.lang.Thread.run(Thread.java:595)

root cause

java.lang.NoClassDefFoundError: org/springframework/context/support/AbstractApplicationContext
  java.lang.Class.getDeclaredConstructors0(Native Method)
  java.lang.Class.privateGetDeclaredConstructors(Class.java:2328)
  java.lang.Class.getConstructor0(Class.java:2640)
  java.lang.Class.newInstance0(Class.java:321)
  java.lang.Class.newInstance(Class.java:303)
  org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
  org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
  org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
  org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
  org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
  org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
  java.lang.Thread.run(Thread.java:595)

note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.

程序:
package net.testSpring.sys;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class AppContext {
  private static AppContext instance;

  private AbstractApplicationContext appContext;

  public synchronized static AppContext getInstance() {
    if (instance == null) {
      instance = new AppContext();
    }
    return instance;
  }

private AppContext() {
    try{
    this.appContext = new ClassPathXmlApplicationContext(
        "/applicationContext.xml");
    }catch(Exception e){
      System.out.println(e.getMessage());
    }
    if(appContext!=null)
      System.out.println("get AppContext success!");
  }  public AbstractApplicationContext getAppContext() {
    return appContext;
  }
}
-----------------------------------------------------------------------------------------
package net.testSpring.servlet;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.testSpring.beans.TestBean;
import net.testSpring.sys.AppContext;

import org.springframework.context.ApplicationContext;

public class MainServlet extends HttpServlet {

  /**
   *
   */
  private static final long serialVersionUID = 1L;

  /**
   * The doGet method of the servlet. <br>
   *
   * This method is called when a form has its tag value method equals to get.
   *
   * @param request
   * the request send by the client to the server
   * @param response
   * the response send by the server to the client
   * @throws ServletException
   * if an error occurred
   * @throws IOException
   * if an error occurred
   */
  public void doGet(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    doPost(request, response);
  }

  /**
   * The doPost method of the servlet. <br>
   *
   * This method is called when a form has its tag value method equals to
   * post.
   *
   * @param request
   * the request send by the client to the server
   * @param response
   * the response send by the server to the client
   * @throws ServletException
   * if an error occurred
   * @throws IOException
   * if an error occurred
   */
  public void doPost(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    response.setContentType("text/html;charset=gb2312");
    try {
      ApplicationContext ac = AppContext.getInstance().getAppContext();
      TestBean tb = (TestBean) ac.getBean("test");
      String vs_text = tb.getContent();
      System.out.println(vs_text);
    } catch (Exception e) {
      e.printStackTrace();
    }
    System.out.println("hello");

  }

}
----------------------------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

<beans>
  <bean id="test" class="net.testSpring.beans.TestBean">
    <property name="vs_test"><value>Hello World</value></property>
</bean>
</beans>
------------------------------------------------------------
applicationContext.xml放在web-inf/classes下面

• 请求JAVA学习方向？？？？？

话题树型展开

人气	标题	作者	字数	发贴时间
22302	请帮忙看看这个简单的spring程序是什么问题?	benbon	5093	2006-03-17 14:57
19613	Re:请帮忙看看这个简单的spring程序是什么问题?	zcjl	177	2006-03-17 16:00
19408	Re:请帮忙看看这个简单的spring程序是什么问题?	benbon	28	2006-03-17 16:51
19399	Re:请帮忙看看这个简单的spring程序是什么问题?	floater	288	2006-03-17 22:52
19724	Re:请帮忙看看这个简单的spring程序是什么问题?	bluepure	114	2006-03-18 18:48
20506	Re:请帮忙看看这个简单的spring程序是什么问题?	rockykid	24	2006-05-21 15:23

已读帖子

新的帖子

被删除的帖子