Ajax swt+upload

 

 

import java.io.File;

import java.io.IOException;

import java.util.Enumeration;

 

import javax.servlet.ServletConfig;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

 

import org.apache.commons.io.FilenameUtils;

import org.apache.commons.lang.StringUtils;

import org.apache.commons.lang.time.DateFormatUtils;

 

import com.cmhit.commons.util.PU_FixAttrGet;

import com.elkan.utils.SynchronizationFile;

import com.oreilly.servlet.MultipartRequest;

import com.oreilly.servlet.multipart.FileRenamePolicy;

 

 

public class FileUploadServlet extends HttpServlet {

 

private static final long serialVersionUID = -3096800116651263134L;

 

private String fileSizeLimit;

private File oldFile;

 

public void init(ServletConfig config) throws ServletException {

this.fileSizeLimit = config.getInitParameter("fileSizeLimit");

}

 

public void destroy() {

this.fileSizeLimit = null;

super.destroy();

}

 

class MyFileRenamePolicy implements FileRenamePolicy {

public File rename(File file) {

oldFile = file;

String fileSaveName = StringUtils.join(new String[] { java.util.UUID.randomUUID().toString(), ".",

FilenameUtils.getExtension(file.getName()) });

File result = new File(file.getParentFile(), fileSaveName);

// File result = new File(file.getParentFile(), oldFile.getName());

return result;

}

}

 

public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

HttpSession session = request.getSession();

String uploadPath = request.getSession().getServletContext()

.getRealPath("/");

//文件保存位置，当前项目下的upload/mail

// String uploadDir = "uploadAttach" + File.separatorChar;

String uploadDir = "/uploadAttach/";

//每天上传的文件根据日期存放在不同的文件夹

// String autoCreatedDateDirByParttern = "yyyy" + File.separatorChar + "MM" + File.separatorChar + "dd" + File.separatorChar;

String autoCreatedDateDirByParttern = "yyyy/MM/dd/";

String autoCreatedDateDir = DateFormatUtils.format(new java.util.Date(), autoCreatedDateDirByParttern);

String ctxDir = session.getServletContext().getRealPath(String.valueOf(File.separatorChar));

if (!ctxDir.endsWith(String.valueOf(File.separatorChar))) {

ctxDir = ctxDir + File.separatorChar;

}

File savePath = new File(ctxDir + uploadDir + autoCreatedDateDir);

if (!savePath.exists()) {

savePath.mkdirs();

}

String saveDirectory = ctxDir + uploadDir + autoCreatedDateDir;

if (StringUtils.isBlank(this.fileSizeLimit.toString())) {

this.fileSizeLimit = "80";// 默认100M

}

int maxPostSize = Integer.parseInt(this.fileSizeLimit) * 1024 * 1024;

String encoding = "UTF-8";

FileRenamePolicy rename = new MyFileRenamePolicy();

MultipartRequest multi = null;

try {

multi = new MultipartRequest(request, saveDirectory, maxPostSize, encoding, rename);

} catch (IOException e) {

e.printStackTrace();

return;

}

 

// 输出

Enumeration files = multi.getFileNames();

while (files.hasMoreElements()) {

String name = (String) files.nextElement();

File f = multi.getFile(name);

if (f != null) {

String fileName = multi.getFilesystemName(name);

String fileSavePath = uploadDir + autoCreatedDateDir + fileName;

System.out.println("文件名:" + oldFile.getName());

System.out.println("保存路径:" + fileSavePath);

response.getWriter().print(fileSavePath);

// File uploadedFile = new File(uploadPath + fileSavePath);

// PU_FixAttrGet pf = new PU_FixAttrGet();

// String iPath = pf.getValue("iPath", "MPS");//http://192.168.78.206/ReciveFile

// SynchronizationFile s_file = new SynchronizationFile(uploadedFile.getAbsolutePath(),fileSavePath,iPath);

// int code = s_file.uploadFile();

// System.out.println(code);

}

}

}

 

public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

this.doPost(request, response);

}

 

public String getFileSizeLimit() {

return fileSizeLimit;

}

 

public void setFileSizeLimit(String fileSizeLimit) {

this.fileSizeLimit = fileSizeLimit;

}

 

}