404报错
点导入之后出现404报错。
以下是代码：
ImportExcelInitServlet.java:
package org.imooc.servlet;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
public class ImportExcelInitServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
this.doPost(req, resp);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
req.getRequestDispatcher("/WEB-INF/jsp/importExcel.jsp").forward(req,resp);
}
}
importExcelServlet.java:
package org.imooc.servlet;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.awt.*;
import java.io.File;
import java.io.IOException;
import java.util.List;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
public class ImportExcelServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
this.doPost(req, resp);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
if(ServletFileUpload.isMultipartContent(req)) {
ServletFileUpload upload=new ServletFileUpload(new DiskFileItemFactory());
upload.setHeaderEncoding("UTF-8");
try {
List<FileItem> fileItemList= upload.parseRequest(req);
for(FileItem fileItem:fileItemList){
if(fileItem.isFormField()){
System.out.println(fileItem.getFieldName()+","+fileItem.getString("UTF-8"));
} else {
System.out.println(fileItem.getFieldName());
fileItem.write(new File("/Users/wanghe222530qq.com/Desktop"+fileItem.getName()));
}
}
}catch(FileUploadException e){
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}else{
//req.getParameter("");
}
req.getRequestDispatcher("/WEB-INF/jsp/importExcel.jsp").forward(req,resp);
}
}
indexServlet.java:
package org.imooc.servlet;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
public class IndexServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
this.doPost(req, resp);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
req.getRequestDispatcher("WEB-INF/jsp/importExcel.jsp").forward(req, resp);
}
}
importExcel.jsp:
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9; IE=8; IE=7; IE=EDGE"/>
<title></title>
<link rel="stylesheet" type="text/css" href="css/all.css"/>
<link rel="stylesheet" type="text/css" href="css/pop.css"/>
<link rel="stylesheet" type="text/css" href="css/main.css"/>
</head>
<body style="background: #e1e9eb;">
<form id="mainForm" method="post"enctype="multipart/form-data" action="${basePath}/importExcel">
<div class="right">
<div class="current">当前位置：<a href="###">导入/导出</a> > 导入Excel</div>
<div class="rightCont">
<p class="g_title fix">导入</p>
<table class="tab1" width="100%">
<tbody>
<tr>
<td align="right" width="10%">标题<font color="red">*</font>：</td>
<td width="30%">
<input id="title" name="title" class="allInput" style="width:100%;" type="text"/>
</td>
<td align="right" width="10%">选择文件<font color="red">*</font>：</td>
<td width="30%">
<input type="file" name="excel" style="width:100%;"/>
</td>
</tr>
</tbody></table>
<div style="text-align: center; margin-top: 30px;">
<input class="tabSub" value="导 入" onclick="document.getElementById('mainForm').submit();" type="button" />
</div>
</div>
</div>
</form>
</body>
</html>
正在回答 回答被采纳积分+1
配置ImportExcelServlet之后，导入文件，server的output处没有显示信息。 <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" version="4.0"> <servlet> <servlet-name>indexServlet</servlet-name> <servlet-class>org.imooc.servlet.IndexServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>indexServlet</servlet-name> <url-pattern>/index</url-pattern> </servlet-mapping> <servlet> <servlet-name>importExcelInit</servlet-name> <servlet-class>org.imooc.servlet.ImportExcelInitServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>importExcelInit</servlet-name> <url-pattern>/importExcelInit</url-pattern> </servlet-mapping> <servlet> <servlet-name>importExcel</servlet-name> <servlet-class>org.imooc.servlet.ImportExcelServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>importExcel</servlet-name> <url-pattern>/importExcel</url-pattern> </servlet-mapping> <jsp-config> <jsp-property-group> <url-pattern>*.jsp</url-pattern> <include-prelude>/WEB-INF/jsp/common.jsp</include-prelude> </jsp-property-group> </jsp-config> </web-app>
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