Related resource download address:/detail/geloin/4506561
This article is based onSpring MVC annotations to make Spring run。
(1) Import jar package:,.
(2) Add in src/context/
<bean
class=""
p:defaultEncoding="UTF-8" />Note that you need to add content to the head, as shown below after adding:
<beans default-lazy-init="true"
xmlns="/schema/beans"
xmlns:p="/schema/p"
xmlns:xsi="http:///2001/XMLSchema-instance"
xmlns:context="/schema/context"
xmlns:mvc="/schema/mvc"
xsi:schemaLocation="
/schema/beans
/schema/beans/spring-beans-3.
/schema/mvc
/schema/mvc/spring-mvc-3.
/schema/context
/schema/context/spring-context-3.">(3) Add tool class
/**
*
* @author geloin
* @date 2012-5-5 12:05:57 pm
*/
package ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
/**
*
* @author geloin
* @date 2012-5-5 12:05:57 pm
*/
public class FileOperateUtil {
private static final String REALNAME = "realName";
private static final String STORENAME = "storeName";
private static final String SIZE = "size";
private static final String SUFFIX = "suffix";
private static final String CONTENTTYPE = "contentType";
private static final String CREATETIME = "createTime";
private static final String UPLOADDIR = "uploadDir/";
/**
* Rename the uploaded file
*
* @author geloin
* @date 2012-3-29 3:39:53 pm
* @param name
* @return
*/
private static String rename(String name) {
Long now = (new SimpleDateFormat("yyyyMMddHHmmss")
.format(new Date()));
Long random = (long) (() * now);
String fileName = now + "" + random;
if ((".") != -1) {
fileName += (("."));
}
return fileName;
}
/**
* Compressed file name
*
* @author geloin
* @date 2012-3-29 6:21:32 pm
* @param name
* @return
*/
private static String zipName(String name) {
String prefix = "";
if ((".") != -1) {
prefix = (0, ("."));
} else {
prefix = name;
}
return prefix + ".zip";
}
/**
* Upload file
*
* @author geloin
* @date 2012-5-5 12:25:47 pm
* @param request
* @param params
* @param values
* @return
* @throws Exception
*/
public static List<Map<String, Object>> upload(HttpServletRequest request,
String[] params, Map<String, Object[]> values) throws Exception {
List<Map<String, Object>> result = new ArrayList<Map<String, Object>>();
MultipartHttpServletRequest mRequest = (MultipartHttpServletRequest) request;
Map<String, MultipartFile> fileMap = ();
String uploadDir = ().getServletContext()
.getRealPath("/")
+ ;
File file = new File(uploadDir);
if (!()) {
();
}
String fileName = null;
int i = 0;
for (Iterator<<String, MultipartFile>> it = ()
.iterator(); (); i++) {
<String, MultipartFile> entry = ();
MultipartFile mFile = ();
fileName = ();
String storeName = rename(fileName);
String noZipName = uploadDir + storeName;
String zipName = zipName(noZipName);
// Upload to a compressed file
ZipOutputStream outputStream = new ZipOutputStream(
new BufferedOutputStream(new FileOutputStream(zipName)));
(new ZipEntry(fileName));
("GBK");
((), outputStream);
Map<String, Object> map = new HashMap<String, Object>();
// Fixed parameter value pair
(, zipName(fileName));
(, zipName(storeName));
(, new File(zipName).length());
(, "zip");
(, "application/octet-stream");
(, new Date());
// Custom parameter value pairs
for (String param : params) {
(param, (param)[i]);
}
(map);
}
return result;
}
/**
* download
*
* @author geloin
* @date 2012-5-5 12:25:39 pm
* @param request
* @param response
* @param storeName
* @param contentType
* @param realName
* @throws Exception
*/
public static void download(HttpServletRequest request,
HttpServletResponse response, String storeName, String contentType,
String realName) throws Exception {
("text/html;charset=UTF-8");
("UTF-8");
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
String ctxPath = ().getServletContext()
.getRealPath("/")
+ ;
String downLoadPath = ctxPath + storeName;
long fileLength = new File(downLoadPath).length();
(contentType);
("Content-disposition", "attachment; filename="
+ new String(("utf-8"), "ISO8859-1"));
("Content-Length", (fileLength));
bis = new BufferedInputStream(new FileInputStream(downLoadPath));
bos = new BufferedOutputStream(());
byte[] buff = new byte[2048];
int bytesRead;
while (-1 != (bytesRead = (buff, 0, ))) {
(buff, 0, bytesRead);
}
();
();
}
}It can be used completely without changing the class. It should be noted that the uploaded file is set to place the uploaded file under WebContent/uploadDir.
(4) Add
/**
*
* @author geloin
* @date 2012-5-5 11:56:35 AM
*/
package ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
/**
*
* @author geloin
* @date 2012-5-5 11:56:35 AM
*/
@Controller
@RequestMapping(value = "background/fileOperate")
public class FileOperateController {
/**
* to the location where the file is uploaded
*
* @author geloin
* @date 2012-3-29 4:01:31 pm
* @return
*/
@RequestMapping(value = "to_upload")
public ModelAndView toUpload() {
return new ModelAndView("background/fileOperate/upload");
}
/**
* Upload file
*
* @author geloin
* @date 2012-3-29 4:01:41 pm
* @param request
* @return
* @throws Exception
*/
@RequestMapping(value = "upload")
public ModelAndView upload(HttpServletRequest request) throws Exception {
Map<String, Object> map = new HashMap<String, Object>();
// Alias
String[] alaises = (request,
"alais");
String[] params = new String[] { "alais" };
Map<String, Object[]> values = new HashMap<String, Object[]>();
("alais", alaises);
List<Map<String, Object>> result = (request,
params, values);
("result", result);
return new ModelAndView("background/fileOperate/list", map);
}
/**
* download
*
* @author geloin
* @date 2012-3-29 5:24:14 pm
* @param attachment
* @param request
* @param response
* @return
* @throws Exception
*/
@RequestMapping(value = "download")
public ModelAndView download(HttpServletRequest request,
HttpServletResponse response) throws Exception {
String storeName = "";
String realName = "Java design pattern.zip";
String contentType = "application/octet-stream";
(request, response, storeName, contentType,
realName);
return null;
}
}Please change the download method yourself. If you use the database to save the uploaded file information, please refer toSpring MVC integrates Mybatis instances。
(5) Add fileOperate/
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="/jsp/jstl/core"%>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http:///TR/xhtml1/DTD/">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Insert title here</title>
</head>
<body>
</body>
<form enctype="multipart/form-data"
action="<c:url value="/background/fileOperate/" />" method="post">
<input type="file" name="file1" /> <input type="text" name="alais" /><br />
<input type="file" name="file2" /> <input type="text" name="alais" /><br />
<input type="file" name="file3" /> <input type="text" name="alais" /><br />
<input type="submit" value="upload" />
</form>
</html>Make sure the value of enctype is multipart/form-data; the value of method is post.
(6) Add fileOperate/
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="/jsp/jstl/core"%>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http:///TR/xhtml1/DTD/">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Insert title here</title>
</head>
<body>
<c:forEach items="${result }" var="item">
<c:forEach items="${item }" var="m">
<c:if test="${ eq 'realName' }">
${ }
</c:if>
<br />
</c:forEach>
</c:forEach>
</body>
</html>(7) Access the upload page through http://localhost:8080/spring_test/background/fileOperate/to_upload.html, and download the file through http://localhost:8080/spring_test/background/fileOperate/