SpringMVC实现多文件上传

时间:2021-04-02 人气:0

1）创建工程并导入JAR包

2）创建多文件选择页面

在 WebContent 目录下创建 JSP 页面 multiFiles.jsp，在该页面中使用表单上传多个文件，具体代码如下：

<%@ 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>Insert title here</title>
</head>
<body>
 <form action="${pageContext.request.contextPath }/multifile"
  method="post" enctype="multipart/form-data">
  选择文件1：<input type="file" name="myfile"><br>
  文件描述1：<input type="text" name="description"><br />
  选择文件2：<input type="file" name="myfile"><br>
  文件描述2：<input type="text" name="description"><br />
  选择文件3：<input type="file" name="myfile"><br>
  文件描述3：<input type="text" name="description"><br />
  <input type="submit" value="提交">
 </form>
</body>
</html>

3）创建POJO类

package pers.zhang.pojo;
import java.util.List;
import org.springframework.web.multipart.MultipartFile;
public class MultiFileDomain {
 private List<String> description;
 private List<MultipartFile> myfile;
 
 public List<String> getDescription() {
 return description;
 }
 public void setDescription(List<String> description) {
 this.description = description;
 }
 public List<MultipartFile> getMyfile() {
 return myfile;
 }
 public void setMyfile(List<MultipartFile> myfile) {
 this.myfile = myfile;
 }
 

}

4）创建多文件上传处理方法

/**
* 多文件上传
*/
@RequestMapping("/multifile")
public String multiFileUpload(@ModelAttribute MultiFileDomain multiFileDomain,HttpServletRequest request) {
 String realpath = request.getServletContext().getRealPath("uploadfiles");
 File targetDir = new File(realpath);
 if (!targetDir.exists()) {
  targetDir.mkdirs();
 }
 List<MultipartFile> files = multiFileDomain.getMyFile();
 for (int i = 0; i < files.size(); i++) {
  MultipartFile file = files.get(i);
  String fileName = file.getOriginalFilename();
  File targetFile = new File(realpath, fileName);
  // 上传
  try {
   file.transferTo(targetFile);
  } catch (Exception e) {
   e.printStackTrace();
  }
 }
 logger.info("成功");
 return "showMulti";
}

5）创建成功显示页面

<%@ page language="java" contentType="text/html; charset=UTF-8"
 pageEncoding="UTF-8"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!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>Insert title here</title>
</head>
<body>
 <table>
  <tr>
   <td>详情</td>
   <td>文件名</td>
  </tr>
  <!-- 同时取两个数组的元素 -->
  <c:forEach items="${multiFileDomain.description}" var="description"
   varStatus="loop">
   <tr>
    <td>${description}</td>
    <td>${multiFileDomain.myfile[loop.count-1].originalFilename}</td>
   </tr>
  </c:forEach>
  <!-- fileDomain.getMyfile().getOriginalFilename() -->
 </table>
</body>
</html>

6）测试文件上传

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