文件从本地到服务器的功能,其实是为了解决目前浏览器不支持获取本地文件全路径。不得已而想到上传到服务器的固定目录,从而方便项目获取文件,进而使程序支持EXCEL批量导入数据。
java中文件上传到服务器的指定路径的代码:
在前台界面中输入:
<form method="post" enctype="multipart/form-data" action="../manage/excelImport.do">
请选文件:<input type="file" name="excelFile">
<input type="submit" value="导入" onclick="return impExcel()"/>
</form>
action中获取前台传来数据并保存
/**
* excel 导入文件
* @return
* @throws IOException
*/
@RequestMapping("/usermanager/excelImport.do")
public String excelImport(
String filePath,
MultipartFile excelFile,HttpServletRequest request) throws IOException{
log.info("<<<<<<action:{} Method:{} start>>>>>>","usermanager","excelImport" )
if (excelFile != null){
String filename=excelFile.getOriginalFilename()
String a=request.getRealPath("u/cms/www/201509")
SaveFileFromInputStream(excelFile.getInputStream(),request.getRealPath("u/cms/www/201509"),filename)//保存到服务器的路径
}
log.info("<<<<<<action:{} Method:{} end>>>>>>","usermanager","excelImport" )
return ""
}
/**
* 将MultipartFile转化为file并保存到服务器上的某地
*/
public void SaveFileFromInputStream(InputStream stream,String path,String savefile) throws IOException
{
FileOutputStream fs=new FileOutputStream( path + "/"+ savefile)
System.out.println("------------"+path + "/"+ savefile)
byte[] buffer =new byte[1024*1024]
int bytesum = 0
int byteread = 0
while ((byteread=stream.read(buffer))!=-1)
{
bytesum+=byteread
fs.write(buffer,0,byteread)
fs.flush()
}
fs.close()
stream.close()
}
private static DiskFileItemFactory factory //获得磁盘文件条目工厂private static ServletFileUpload upload //文件上传处理类
factory = new DiskFileItemFactory() //获得磁盘文件条目工厂
factory.setRepository(new File(config.getCache())) //创建缓存工厂
factory.setSizeThreshold(1024*1024*2) //设置缓存区的大小
upload = new ServletFileUpload(factory) //高水平的API文件上传处理
upload.setSizeMax(10 * 1024 * 1024) //设置文件上传的最大值
upload.setFileSizeMax(2* 1024 * 1024) //设置文件上传的最大值
List<FileItem>list = upload.parseRequest(request)
for(FileItem item : list){
String fieldName = item.getFieldName() //获取表单的属性名字
String fileName = item.getName() //获取文件名
if(item.isFormField()){ //如果获取的 表单信息是普通的 文本 信息
}else{
File file = new File("d://test.txt")
item.write(file)
}
}
import java.io.Fileimport java.io.FileInputStream
import org.apache.commons.net.ftp.FTPClient
import org.apache.commons.net.ftp.FTPReply
public class test {
private FTPClient ftp
/**
*
* @param path 上传到ftp服务器哪个路径下
* @param addr 地址
* @param port 端口号
* @param username 用户名
* @param password 密码
* @return
* @throws Exception
*/
private boolean connect(String path,String addr,int port,String username,String password) throws Exception {
boolean result = false
ftp = new FTPClient()
int reply
ftp.connect(addr,port)
ftp.login(username,password)
ftp.setFileType(FTPClient.BINARY_FILE_TYPE)
reply = ftp.getReplyCode()
if (!FTPReply.isPositiveCompletion(reply)) {
ftp.disconnect()
return result
}
ftp.changeWorkingDirectory(path)
result = true
return result
}
/**
*
* @param file 上传的文件或文件夹
* @throws Exception
*/
private void upload(File file) throws Exception{
if(file.isDirectory()){
ftp.makeDirectory(file.getName())
ftp.changeWorkingDirectory(file.getName())
String[] files = file.list()
for (int i = 0i <files.lengthi++) {
File file1 = new File(file.getPath()+"\\"+files[i] )
if(file1.isDirectory()){
upload(file1)
ftp.changeToParentDirectory()
}else{
File file2 = new File(file.getPath()+"\\"+files[i])