package com.mandi.servlet;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.google.gson.Gson;
import com.google.gson.JsonObject;
import com.mandi.common.RequestParam;
import com.mandi.common.SessionMethod;
@WebServlet(name="removefile",urlPatterns="/removefileservlet.sv")
public class Removefileservlet extends HttpServlet {
	private static final long serialVersionUID = 3156691139583344145L;

	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		this.doGet(req, resp);
	}

	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		JsonObject jo=new JsonObject();
		Gson g=new Gson();
		resp.setCharacterEncoding("UTF-8");
		resp.setContentType("application/json; charset=utf-8");
		String url=RequestParam.getSqlString(req, "url");
		url=req.getServletContext().getRealPath(url);
		Path p=Paths.get(url);
		if(!Files.exists(p))
		{
			jo.addProperty("code", 1);
			jo.addProperty("errmsg", "文件不存在!");
			SessionMethod.writeresp(resp, g.toJson(jo));
			return;
		}
		try{
			Files.delete(p);
			jo.addProperty("code", 0);
		}catch (Exception e) {
			e.printStackTrace();
			jo.addProperty("code", 2);
			jo.addProperty("errmsg", "文件不能删除!!");
		}
		SessionMethod.writeresp(resp, g.toJson(jo));
		return;
	}
	
}