springmvc文件上传
private static final String uploadFilePath = "d:\\temp_upload_file\\";
/**
* 新增 - 提交 – 只保存文件到服务器上
*/
@RequestMapping(value = "addAction.do")
public String add_action(ModelMap model, StudentForm form) {
try {
MultipartFile uploadFile = form.getStudentPhoto();
String filename = uploadFile.getOriginalFilename();
InputStream is = uploadFile.getInputStream();
// 如果服务器已经存在和上传文件同名的文件,则输出提示信息
File tempFile = new File(uploadFilePath + filename);
if (tempFile.exists()) {
boolean delResult = tempFile.delete();
System.out.println("删除已存在的文件:" + delResult);
}
// 开始保存文件到服务器
if (!filename.equals("")) {
FileOutputStream fos = new FileOutputStream(uploadFilePath + filename);
byte[] buffer = new byte[8192]; // 每次读8K字节
int count = 0;
// 开始读取上传文件的字节,并将其输出到服务端的上传文件输出流中
while ((count = is.read(buffer)) > 0) {
fos.write(buffer, 0, count); // 向服务端文件写入字节流
}
fos.close(); // 关闭FileOutputStream对象
is.close(); // InputStream对象
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}