HTML5 implementation of multiple file upload sample code_html5 tutorial skills

The main thing used is the multiple attribute of

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The code is as follows:

The following is the detailed code of the page:

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The code is as follows:

< /head>

action="http://10.10.25.31:8080/myupload/UploadPhotoServlet" ENCTYPE="multipart/form-data" METHOD="POST">
type="submit" value="Submit">

Detailed code of java background:

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The code is as follows:

java.io.파일 가져오기;
java.io.IOException 가져오기;
java.text.SimpleDateFormat 가져오기;
java.util.Calendar 가져오기;
java.util.Date 가져오기;
java.util.List 가져오기;
javax.servlet.ServletException 가져오기;
javax.servlet.http.HttpServlet 가져오기;
javax.servlet.http.HttpServletRequest 가져오기;
javax.servlet.http.HttpServletResponse 가져오기;
org.apache.commons.fileupload.FileItem 가져오기;
가져오기 org.apache.commons.fileupload.FileUploadException;
org.apache.commons.fileupload.disk.DiskFileItemFactory 가져오기;
org.apache.commons.fileupload.servlet.ServletFileUpload 가져오기;
/**
* 서블릿 구현 클래스 UploadPhotoServlet
*/
public class UploadPhotoServlet은 HttpServlet을 확장합니다. {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public UploadPhotoServlet() {
super();
// TODO 자동 생성 생성자 스텁
}
/**
* @see HttpServlet#doGet(HttpServletRequest 요청, HttpServletResponse 응답)
*/
protected void doGet(HttpServletRequest 요청, HttpServletResponse 응답) throws ServletException, IOException {
// TODO 자동 생성된 메소드 스텁
doPost(request,response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest 요청, HttpServletResponse 응답)
*/
@SuppressWarnings("unchecked")
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String imagePath=" c:\uploadFile\Image\" getEachDate() "\";//按日期生成文件夹
File uploadPath=new File(imagePath);
if(!uploadPath.exists()){
uploadPath.mkdirs();
}
파일 tmp=new File("c:\tmp\");
if(!tmp.exists()){
tmp.mkdirs();
}
DiskFileItemFactory Factory=new DiskFileItemFactory ();//创建磁盘工厂
factory.setRepository(tmp);//设置文件缓存路径
factory.setSizeThreshold(10 * 1096 );//将文件保存는 内存还是磁盘临时文件夹的默认临界值，值为10240，即10kb
ServletFileUpload sfu=new ServletFileUpload(factory);//创建处理工具
sfu.setSizeMax(10*1024*1024 );//더 보기
{
List list=sfu.parseRequest(request);//설명
if(list.size()<1){
return;
}
for(int j=0;jFileItem item=list.get(j);
fileName=item.getName();
if(fileName.equals("")){
request.getRequestDispatcher("/com/visualizerPhoto.jsp").forward(요청, 응답);
반환;
}
int pos=fileName.lastIndexOf(".");//取图文件格式
if(pos>0){
날짜 date=new Date();
fileName=imagePath date.getTime() fileName.substring(pos);
}
System.out.println("item:" item);
item.write(new File(fileName));//写到磁盘
}
} catch (FileUploadException e) {
e.printStackTrace();
} catch(예외 e) {
e.printStackTrace();
}
}
// 13-11-15
public static String getEachDate() {
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DATE, 0);
어제 문자열 = new SimpleDateFormat("yyyy-MM-dd ").format(cal
.getTime());
String[] 날짜 = 어제.split("-");
String realDate = 날짜[0].substring(2, 4) "-" 날짜[1] "-"
날짜[2];
realDate.trim()을 반환합니다.
}
}

하면是效果图：