package com.lgx8.gateway.admin.servlet;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import javax.imageio.ImageIO;
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 org.springframework.context.ApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;
import com.lgx8.common.entities.GatewayConfig;
import com.lgx8.common.entities.ProductImage;
import com.lgx8.common.util.Constants;
import com.lgx8.gateway.service.IGatewayService;
import com.lgx8.util.ImageUtils;
/**
* Servlet implementation class UploadImageServlet
*/
public class UploadImageServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public UploadImageServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
@SuppressWarnings("unchecked")
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
DiskFileItemFactory factory = new DiskFileItemFactory();
//设置最多只允许在内存中存储的数据,单位:字节
factory.setSizeThreshold(4096);
//设置一旦文件大小超过getSizeThreshold()的值时数据存放在硬盘的目录
//factory.setRepository(new File(InitServlet.PROJECT_PATH + FrameworkConstants.TEMP_PATH));
ServletFileUpload upload = new ServletFileUpload(factory);
upload.setSizeMax(Constants.UPLOAD_MAX_SIZE);
try {
List fileItems = upload.parseRequest(request);
Iterator iter = fileItems.iterator();
while (iter.hasNext()) {
FileItem item = (FileItem) iter.next();
if (!item.isFormField()) {
try {
String name = item.getName();
String[] names = name.split("\\"+System.getProperty("file.separator"));
name = names[names.length-1];
names = name.split("\\.");
name = names[names.length-2];
ProductImage productImage = new ProductImage();
productImage.setDate(new Date());
productImage.setDescription(name);
name = productImage.getDate().getTime()+"";
productImage.setName(name);
String uploadPath = ImageUtils.getUploadPath();
String sourcePath = uploadPath + System.getProperty("file.separator") + name+".jpg";
item.write(new File(sourcePath));
String[] path = sourcePath.split("\\"+System.getProperty("file.separator"));
sourcePath = path[path.length-3]+"/"+ path[path.length-2]+"/"+ path[path.length-1];
productImage.setSourceURL(sourcePath);
ApplicationContext ac = WebApplicationContextUtils.getWebApplicationContext(this.getServletContext());
IGatewayService gatewayService = (IGatewayService) ac.getBean("gatewayService");
gatewayService.createProductImage(productImage);
GatewayConfig gatewayConfig = (GatewayConfig) getServletContext().getAttribute("gatewayConfig");
PrintWriter out = response.getWriter();
String fileUrl = gatewayConfig.getUrl()+"/"+productImage.getSourceURL();
//CKEditorFuncNum就是在提交上传文件的同时传递到后台的request内容，表明应该插入到编辑器中的位置
String callback = request.getParameter("CKEditorFuncNum");
out.println("<script type=\"text/javascript\">");
out.println("window.parent.CKEDITOR.tools.callFunction(" + callback
+ ",'" + fileUrl + "',''" + ")");
out.println("</script>");
out.flush();
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
} catch (FileUploadException e) {
e.printStackTrace();
System.out.println(e.getMessage() + "结束");
}
}
}