package com.css.common.upload.servlet;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import com.css.common.image.ImageUtil;
import com.css.common.util.FileUploadUtil;
@SuppressWarnings("serial")
public class FileUploadServlet extends HttpServlet {
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
this.doPost(request, response);
}
@Override
@SuppressWarnings("unchecked")
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
DiskFileItemFactory fac = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(fac);
upload.setHeaderEncoding("utf-8");
List fileList = null;
try {
fileList = upload.parseRequest(request);
} catch (FileUploadException ex) {
response.getWriter().print("ERROR:" + ex.getMessage());
return;
}
Iterator<FileItem> it = fileList.iterator();
/** 上传路径 */
String upload_path = "";
/** 返回类型 */
String return_type = "";
/** 用于处理多个文件 */
List<FileItem> itemList = new ArrayList<FileItem>();
while (it.hasNext()) {
FileItem item = it.next();
if (item.isFormField()) {
String formFileName = item.getFieldName();
if ("upload_path".equals(formFileName)) {
upload_path = item.getString();
} else if ("return_type".equals(formFileName)) {
return_type = item.getString();
}
} else {
itemList.add(item);
}
}
if (! upload_path.endsWith("/")) {
upload_path += "/";
}
upload_path += FileUploadUtil.getCurrentYMR("/");
File dir = new File(upload_path);
if (! dir.exists()) {
dir.mkdirs();
}
/** 用于返回页面显示 多个之间","分割 */
String returnString = "";
for (FileItem fileItem : itemList) {
String fileName = fileItem.getName();
if (fileName == null || fileName.trim().equals("")) {
return;
}
String postfix = "";
if (fileName.lastIndexOf(".") >= 0) {
postfix = fileName.substring(fileName.lastIndexOf(".") + 1);
}
/** 文件名称 */
fileName = FileUploadUtil.getCurrentYMR("_") + "_" + FileUploadUtil.createUnique() + "." + postfix;
/** 文件绝对路径 */
String filePath = upload_path + "/" + fileName;
File saveFile = new File(filePath);
try {
fileItem.write(saveFile);
/** 1 表示上传文件并返回[文件名.扩展名]
* 2 表示上传图片并生成(商品封面图片)缩略图
* 3 表示上传图片并生成(商品相册图片)缩略图
* 4 表示上传图片并生成(会员头像)缩略图
*/
if ("1".equals(return_type)) {
returnString = returnString + FileUploadUtil.getCurrentYMR("/") + "/" + fileName;
} else if ("2".equals(return_type)) {
String width_height = ImageUtil.getInstance().getWidthHeight(filePath);
ImageUtil.getInstance().createGoodsImg(filePath, filePath + "_" + width_height, postfix, width_height);
returnString = returnString + FileUploadUtil.getCurrentYMR("/") + "/" + fileName + "_" + width_height + ",";
} else if ("3".equals(return_type)) {
String width_height = ImageUtil.getInstance().getWidthHeight(filePath);
ImageUtil.getInstance().createGoodsAlbumImg(filePath, filePath + "_" + width_height, postfix, width_height);
returnString = returnString + FileUploadUtil.getCurrentYMR("/") + "/" + fileName + "_" + width_height + ",";
} else if ("4".equals(return_type)) {
String w_h = ImageUtil.getInstance().createHeadpicImg(filePath, filePath, postfix);
returnString = returnString + FileUploadUtil.getCurrentYMR("/") + "/" + fileName + "&" + w_h + ",";
}
} catch (Exception e) {
response.getWriter().print("ERROR:" + e.getMessage());
return;
}
}
/** 多张图片 则去掉后面"," */
if (returnString.endsWith(",")) {
returnString = returnString.substring(0, returnString.length() - 1);
}
response.getWriter().print("SUCCESS:" + returnString);
}
}
