The project I just started has been troubled by file uploading for a long time. I used the fileupload component to upload the code before, and the code refers to the Lonely Wolf Blog, but except for the file name, I don’t know how to read and store the other content in the form; so this time, the smartupload component is used for upload
add.jsp：
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'add.jsp' starting page</title>
</head>
<body>
<form action="backpages/memberIntroduce/addDo.jsp" method="post" enctype="multipart/form-data">
姓名：<input type="text" name="name"><br>
简介：<input type="text" name="content"><br>
照片：<input type="file" name="photo"><br>
<input type="submit" value="提交">
</form>
</body>
</html>
enctype must be "multipart/form-data";
addDo.jsp：
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ page import="com.HQWeb.entity.*"%>
<%@ page import="com.HQWeb.dao.*"%>
<%@page import="com.jspsmart.upload.SmartUpload"%>
<%@page import="com.jspsmart.upload.File"%>
<%
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
//Create smartupload component
SmartUpload su = new SmartUpload();
//Initialize the component context
su.initialize(pageContext);
//upload files
su.upload ();
out.println("Upload" + su.save("picture/memberPhoto") + "Files succeeded!!!"+"<br>");
// get the form item
//String name = su.getRequest().getParameter("name");
//String content = su.getRequest().getParameter("content");
String name = new String(su.getRequest()
.getParameter("name").trim().getBytes(), "utf-8");
String content = new String(su.getRequest()
.getParameter("content").trim().getBytes(), "utf-8");
// get a single file
File file = su.getFiles().getFile(0);//A for loop can be used to get multiple files
/ / Determine whether the current file has selected a file; if not, continue
if (file.isMissing())
System.out.println("No file selected");//If you use a for loop, continue
//Set the location of the upload server
String path = "/picture/memberPhoto";
// get the name of the uploaded file
String photo = file.getFileName();
//path to upload file
path = path + photo;
//save document
file.saveAs(path, SmartUpload.SAVE_VIRTUAL);
System.out.println(photo);
Member member = new Member();
member.setName(name);
member.setContent(content);
member.setPhoto(photo);
if (MemberDao.insert(member)) {
out.println("Successful operation, return list after 3 seconds");
response.setHeader("refresh", "3;list.jsp");
} else {
out.println("Failed operation, return to list after 3 seconds");
response.setHeader("refresh", "3;list.jsp");
}
%>
In the addDo.jsp page, because smartupload encapsulates all the content, request.getParameter cannot get the fields, and you need to use the encapsulated su.getRequest().getParameter("name");
But there is another problem. When uploading a Chinese form and storing it in the database, it will display garbled characters. Using su.getRequest().getParameter("name"). trim().getBytes(), "utf-8"); can solve part of it, The garbled problem remains to be resolved
Re-summarize the upload file process yourself:
1. Instantiate the SmartUpload object;
<!--[if !supportLists]--> 2, 2, <!--[endif]--> Initialize the formation context ( initialize ( pageContext ) method);
<!--[if !supportLists]--> 3, 3, <!--[endif]--> file upload ( upload () method);
<!--[if !supportLists]--> 4, 4, <!--[endif]-->Get the form item;
<!--[if !supportLists]--> 5, 5, <!--[endif]--> Get a file ( getFiles () returns the type of Files , and then use its getFile ( index ) method to get a single file);
<!--[if !supportLists]--> 6, 6, <!--[endif]--> Set server location
<!--[if !supportLists]--> 7, 7, <!--[endif]-->Get filename
<!--[if !supportLists]--> 8, 8, <!--[endif]--> Set the path; that is, there must be "/" between path+filename path and file name, otherwise the file will be uploaded to pth path, and change the file name to the directory folder name + file name
<!--[if !supportLists]--> 9, 9, <!--[endif]-->Use file.saveAs(path, SmartUpload.SAVE_VIRTUAL); method to save the file to the specified directory