直接上浏览器端upload.jsp代码(为测试服务器端)
pageEncoding="utf-8"%>
upload
| Name |
| Gender |
| 请选择一个上传文件 |
注意enctype="multipart/form-data" (复杂的数据提交)和{pageContext.request.contextPath}/upload.do工程访问路径
还有就是字符集统一使用utf-8 小心中文乱码。
2.服务器端，采用commons-fileupload 来实现文件上传，仍然使用Servlet
commons-fileupload-1.3.1.jar+ commons-io-2.4.jar(本人出现兼容报错)
代码如下
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
//判断是否是复杂表单提交
boolean isMutipart=ServletFileUpload.isMultipartContent(request);
//
if(isMutipart)
{
//配置缓存工厂
DiskFileItemFactory factory=new DiskFileItemFactory();
//设置缓存大小
factory.setSizeThreshold(1024*1024*2);
File temp=new File("D:\\temp");
if (!temp.exists()) {
temp.mkdir();
}
factory.setRepository(temp);
ServletFileUpload upload=new ServletFileUpload(factory);
// upload.setHeaderEncoding("utf-8");
upload.setFileSizeMax(1024*1024*5);
upload.setSizeMax(1024*1024*6);
//获取提交的集合
try {
Listitems=upload.parseRequest(request);
if(items!=null)
{
for(FileItem item :items)
{
if(item.isFormField())
{
//一般数据
System.out.println(item.getFieldName());
System.out.println(item.getString("utf-8"));
}
else {
String pathString=item.getName();
if(pathString.contains("\\"))
{
int index=pathString.lastIndexOf("\\");
pathString=pathString.substring(index+1);
}
System.out.println(pathString);
//复杂文件
try {
item.write(new File("D:\\"+pathString));
response.getWriter().write("upload success!");
} catch (Exception e) {
e.printStackTrace();
response.getWriter().write("upload fail.");
}
}
}
}
} catch (FileUploadException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
else {
return;
}
}
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