1、文件上传的前端代码
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>测试上传文件</title>
</head>
<body>
<form action="upload.action" method="post" enctype="multipart/form-data">
<input type="file" name="fileInput"/>
<input type="submit" value="确定"/>
</form>
</body>
</html>
2、后台代码
private File fileInput;
private String fileRoot;
private String fileInputFileName;
private String fileInputContentType; // 得到上传的文件的数据类型,
。。。。get和set方法。。。。
方法一:
//处理上传附件
if(fileInput != null){
String savePath = fileRoot + "temp" + getFileSign();
File destFile = new File(new File(savePath), fileInputFileName);
try {
File dir = new File(savePath);
if(!dir.exists()){
newFolder(fileRoot + "temp");
}
FileUtils.copyFile(fileInput, destFile);
}catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
方法二:
String path = "D:\\was\\uompfiles\\uomp\\";
String savePath = fileRoot + "temp" + getFileSign();
//String savePath = path + "temp" + getFileSign();
String uuid = UUID.randomUUID().toString();
System.out.println("===================+fileRoot:"+fileRoot);
String type = fileInputFileName.substring(fileInputFileName.lastIndexOf(".")+1);
OutputStream out;
try{
File dir = new File(savePath);
if(!dir.exists()){
//newFolder(fileRoot + "temp");
newFolder(path + "temp");
}
File newFile = new File(dir,uuid+"."+type);
InputStream in = new FileInputStream(fileInput);
out = new FileOutputStream(newFile);
byte[] buffer = new byte[1024 * 1024];
int length;
while ((length = in.read(buffer)) > 0) {
out.write(buffer, 0, length);
}
in.close();
out.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}