日期:2014-05-16  浏览次数:21005 次

为什么从Jsp页面跳转不到servlet页面
我的工程名是MyBlogOnline然后在src目录下有一个包com.myblog.Servlet,在这个包里有一个PhotoServlet页面,在WebRoot根目录中有一个admin的文件夹,在这个文件里面还有一个photo文件夹,然后在这个photo文件夹里有一个PhotoUpload.jsp页面。现在就是想通过点击提交跳转到servlet。(在台式电脑那边的eclipse的环境能执行但是在我自己的笔记本电脑那里就是执行不了)代码如下:
servlet代码:
package com.myblog.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;

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

import com.jspsmart.upload.File;
import com.jspsmart.upload.Request;
import com.jspsmart.upload.SmartUpload;
import com.jspsmart.upload.SmartUploadException;
import com.myblog.dao.PhotoDao;

public class PhotoServlet extends HttpServlet {


public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {

doPost(request,response);
}

//上传图片
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String href="";
SmartUpload su=new SmartUpload();
su.initialize(this.getServletConfig(),request,response);
//设置需上传的图片的最大大小2M
su.setMaxFileSize(2*1024*1024);
//设置只允许上传图片
su.setAllowedFilesList("jpg,gif,bmp");


try {
//上传文件
su.upload();

int count=su.save("/front/photo/pic");
System.out.println(count);

//获取照片描述信息
//在使用jspSmartUpload组件时,内置对象request不能用了
//而是需要使用本组件自带的request来产生一个对象
Request request1=su.getRequest();
String info=request1.getParameter("info");
System.out.print(info);

//获取上传的文件
File file=su.getFiles().getFile(0);
if(!file.isMissing()){
String filename="/front/photo/pic/"+System.currentTimeMillis()+file.getFileExt();
file.saveAs(filename,File.SAVEAS_VIRTUAL);
}

} catch (SmartUploadException e) {
e.printStackTrace();
}


}
}


jsp代码:
<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%>

<html>
  <head>
  <title>我的博客后台-上传照片</title>
  <link rel="stylesheet" type="text/css" href="styles.css">
  </head>
  
  <body>
  <center>
  <table width="777" border="0" cellspacing="0" cellpadding="0" bgcolor="#FFFFFF" style="word-break:break-all;" >
  <tr><td colspan="2"><jsp:include page="../view/AdminTop.jsp"/></td></tr>
  <tr>
  <td><jsp:include page="../view/AdminLeft.jsp"/></td>
  <td align="center" valign="top">
  <form action="PhotoServlet" method="post" enctype="multipart/form-data">
  <table width="100%" border="0" cellspacing="0" cellpadding="8">
  <tr height="60"><td colspan="2">【上传照片】</td></tr>
  <tr>
  <td align="center">选择照片:</td>
  <td><input type="file" name="path" size="50"></td>
  </tr>
  <tr>