需要:
两个jar包
直接上代码:
index2.jsp代码:
<%-- Created by IntelliJ IDEA. User: admin Date: 2019/10/8 Time: 10:07 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>上传图片</title> <style> span{ color: red; } </style> </head> <body> <form method="post" action="index.jsp" enctype="multipart/form-data"> <%-- <textarea class="ckeditor" name="textareaid"></textarea>--%> <p> 账号: <input type="text"name="userName"placeholder="请输入账号:"><span>*</span> </p> <p> 密码: <input type="password"name="password"placeholder="请输入密码:"><span>*</span> </p> <p> 出生年月: <input type="date"name="date"> </p> 上传图片：<input type="file" name="img"/> <input type="submit" value="提交"/> </form> </body> </html>
index.jsp代码:
<%@ page import="java.io.File" %> <%@ page import="org.apache.commons.fileupload.servlet.ServletFileUpload" %> <%@ page import="org.apache.commons.fileupload.FileItemFactory" %> <%@ page import="org.apache.commons.fileupload.disk.DiskFileItemFactory" %> <%@ page import="java.util.List" %> <%@ page import="org.apache.commons.fileupload.FileItem" %> <%@ page import="java.util.Iterator" %> <%--<%@ page import="org.apache.tomcat.util.http.fileupload.servlet.ServletFileUpload" %>--%> <%--<%@ page import="org.apache.tomcat.util.http.fileupload.FileItemFactory" %>--%> <%--<%@ page import="org.apache.tomcat.util.http.fileupload.disk.DiskFileItemFactory" %>--%> <%--<%@ page import="org.apache.tomcat.util.http.fileupload.FileItem" %><%–--%> <%-- Created by IntelliJ IDEA.--%> <%-- User: admin--%> <%-- Date: 2019/10/8--%> <%-- Time: 17:13--%> <%-- To change this template use File | Settings | File Templates.--%> <%--–%>--%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>测试传送图片</title> </head> <body> <% request.setCharacterEncoding("UTF-8"); String realPath = request.getSession().getServletContext().getRealPath("/img"); File file = new File(realPath); if(file.exists()){ file.mkdir(); } boolean multipartContent = ServletFileUpload.isMultipartContent(request); FileItemFactory factory = new DiskFileItemFactory(); ServletFileUpload upload = new ServletFileUpload(factory); List<FileItem> list = upload.parseRequest(request); Iterator<FileItem> iterator = list.iterator(); while(iterator.hasNext()){ FileItem fileItem = iterator.next(); if(!fileItem.isFormField()){ String name = fileItem.getName(); name = name.substring(0,name.length()-4)+"personal"+System.currentTimeMillis()+".jpg"; File fullFile = new File(name); File uploadFile = new File(realPath,fullFile.getName()); fileItem.write(uploadFile); }else{ String userName = fileItem.getString("UTF-8"); request.setAttribute("name",userName); } } %> </body> </html>
注意： 要记得在out下创建一个文件，这样index2.jsp里的:
String realPath = request.getSession().getServletContext().getRealPath("/images");
("/images")===>这里面写路径
成功后点击下面就有你添加上传的图片
这里我可以让图片显示出来：
首先上传文件(图片为例):
index.css：
.round_icon{ 340px; height: 340px; display: flex; border-radius: 50%; align-items: center; justify-content: center; overflow: hidden; }
index.html:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>圆形图片</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<div class="round_icon">
<img src="../out/artifacts/file_Web_exploded/upload/1personal1570526642418.jpg"/>
</div>
</body>
</html>
