轉自:http://blog.csdn.net/huang_hws/article/details/6689111
當然前提是已經設定好了spring mvc的配置。
上傳:
前台:
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>hello</title>
</head>
<body>
<div>
<form enctype='multipart/form-data' method="post" action="upload.do">
<input type="file" name="uploadFile" />
<button>送出</button>
</form>
</div>
</body>
</html>
調用背景的upload.do的請求
背景:
package hope.cs.zhku.controller;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
/******************************************************************************
* 名稱:UserBasicEditorController.java</br>
* 日期:2011-8-15</br>
* 功能:</br>
* 編寫:Willson Huang</br>
* 複核:</br>
* 其他:</br>
* 曆史:(說明,修改人,時間)</br>
* 1.create ,Willson Huang ,2011-8-15
*****************************************************************************/
@Controller
public class UploadController {
@RequestMapping("upload.do")
public String upload(HttpServletRequest request,HttpServletResponse response ){
MultipartHttpServletRequest multipartHttpservletRequest=(MultipartHttpServletRequest) request;
MultipartFile multipartFile = multipartHttpservletRequest.getFile("uploadFile");
String originalFileName=multipartFile.getOriginalFilename();
File file=new File("file");
if(!file.exists()){
file.mkdir();
}
System.out.println(file.getAbsolutePath());
try {
FileOutputStream fileOutputStream=new FileOutputStream(file+"/uploadFile"+originalFileName.substring(originalFileName.lastIndexOf('.'),
originalFileName.length()));
fileOutputStream.write(multipartFile.getBytes());
fileOutputStream.flush();
fileOutputStream.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return "error";
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return "error";
}
return "uploadSuccess";
}
}
此時,配置檔案如前一遍文章的配置所示,此處不再列出,控制器中有一句輸出語句,輸出檔案儲存的位置,可自行更改
前台:
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script type="text/javascript" src="js/jquery-1.4.4.min.js"></script>
<title>Insert title here</title>
</head>
<body>
<input id='fileName' type="text" name="fileName"/>
<a href="download.do" target="blank"><button>下載下傳</button></a>
</body>
<script type="text/javascript">
$(function(){
$('a').click(function(){
var link=this.href+'?'+'fileName='+$('#fileName').val();
window.open(link);
return false;
});
});
</script>
</html>
背景:
前台填寫要下載下傳的檔案,背景從檔案夾裡查找,如果沒有檔案則傳回錯誤檔案,否則則提供任意檔案類型的下載下傳(填寫檔案時必須寫字尾)
package hope.cs.zhku.controller;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import javax.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
/******************************************************************************
* 名稱:UserBasicEditorController.java</br>
* 日期:2011-8-15</br>
* 功能:</br>
* 編寫:Willson Huang</br>
* 複核:</br>
* 其他:</br>
* 曆史:(說明,修改人,時間)</br>
* 1.create ,Willson Huang ,2011-8-15
*****************************************************************************/
@Controller
public class DownloadController {
@RequestMapping("download.do")
public void downloadFile(String fileName,HttpServletResponse response){
response.setCharacterEncoding("utf-8");
response.setContentType("multipart/form-data");
response.setHeader("Content-Disposition", "attachment;fileName="+fileName);
try {
File file=new File(fileName);
System.out.println(file.getAbsolutePath());
InputStream inputStream=new FileInputStream("file/"+file);
OutputStream os=response.getOutputStream();
byte[] b=new byte[1024];
int length;
while((length=inputStream.read(b))>0){
os.write(b,0,length);
}
inputStream.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}