package com.web.controller;

import java.util.List;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;

import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;

@Controller
@RequestMapping("/web")
public class UploadController {
	@RequestMapping("/upload/index")
	public String toUpload(){
		return "upload";
	}
	
	@RequestMapping("/upload/form")
	public String upload(@RequestParam(value="file",required=false) MultipartFile file,HttpServletRequest request,ModelMap model){
		String path=request.getSession().getServletContext().getRealPath("upload");
		String fileName=file.getOriginalFilename();
		System.out.println(path);
		File targetFile=new File(path,fileName);
		if(!targetFile.exists()){
			targetFile.mkdirs();
		}
		//保存
		try{
			file.transferTo(targetFile);
			model.addAttribute("fileUrl",request.getSession().getServletContext().getRealPath("upload")+"/"+fileName);
		}catch (Exception e) {
			e.printStackTrace();
		}
		return "result";
	}
	@RequestMapping("/upload/forms")
	public String uploads(@RequestParam(value="file",required=false) MultipartFile[] files,HttpServletRequest request,ModelMap model){
		List<String> urls=new ArrayList<String>();
		for(MultipartFile file:files){
			String path=request.getSession().getServletContext().getRealPath("upload");
			String fileName=file.getOriginalFilename();
			System.out.println(path);
			File targetFile=new File(path,fileName);
			if(!targetFile.exists()){
				targetFile.mkdirs();
			}
			
			//保存
			try {
				file.transferTo(targetFile);
				urls.add(request.getContextPath()+"/upload"+fileName);
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			
		}
		model.addAttribute("fileUrls", urls);
		return "result";
	}
}