标签:style blog color java os io 文件 for ar
上传的jsp写法:
<tr> <td width="50%" align="left">软件上传: <input type="file" size="20" class="form-control" name="file" required></td> </tr>
上传的table的表格的form表单需要有的属性(橘黄色标记):
1 <form action="software_add" method="post" class="form" id="form" enctype="multipart/form-data"> 2 ... 3 </form>
上传的后台java相关代码:
1 try { 2 is = new FileInputStream(file); 3 switch (software.getType()) { 4 case 1: 5 os = new FileOutputStream(new File("D:\upload\program\", fileFileName)); 6 break; 7 case 2: 8 os = new FileOutputStream(new File("D:\\upload\\net\\", fileFileName)); //转义不转义均可 9 break; 10 case 3: 11 os = new FileOutputStream(new File("D:\\upload\\app\\", fileFileName)); 12 break; 13 default: 14 break; 15 } 16 System.out.println("fileFileName: " + fileFileName); 17 // 因为file是存放在临时文件夹的文件,我们可以将其文件名和文件路径打印出来,看和之前的fileFileName是否相同 18 System.out.println("file: " + file.getName()); 19 System.out.println("file: " + file.getPath()); 20 path = file.getPath(); 21 byte[] buffer = new byte[500]; 22 int length = 0; 23 24 while(-1 != (length = is.read(buffer, 0, buffer.length))) 25 { 26 os.write(buffer); 27 } 28 29 30 31 } catch (Exception e) { 32 // TODO: handle exception 33 System.out.println("文件上传失败"); 34 e.printStackTrace(); 35 } 36 37 finally { 38 39 try { 40 is.close(); 41 os.close(); 42 } catch (IOException e) { 43 // TODO Auto-generated catch block 44 e.printStackTrace(); 45 } 46 }
Struts部分还可以通过以下控制上传文件大小:
<struts>
<constant name="struts.multipart.maxSize" value="10701096"/>
...
</struts>
PS;此属性需放到<struts></struts>之间
标签:style blog color java os io 文件 for ar
原文地址:http://www.cnblogs.com/voidy/p/3934301.html