src/com/xx/supermarket/controller/ProductController.java

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package com.xx.supermarket.controller;
import java.io.File;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.commons.CommonsMultipartFile;
import com.xx.supermarket.base.BaseController;
import com.xx.supermarket.utils.JsonUtil2;
import com.xx.supermarket.utils.Pager;
import net.sf.json.JSONObject;
import java.util.*;

import com.xx.supermarket.entity.*;
import com.xx.supermarket.dao.*;
import com.xx.supermarket.service.*;

/**
 * @ClassName:  
 * @Description: 
 * @author administrator
 * @date 2015年12月24日 下午1:46:33 - 2017年02月28日 22时35分12秒
 */


@Controller
@RequestMapping("/product")
public class ProductController extends BaseController {
	
	/**
	 * 依赖注入 start dao/service/===
	 */
	@Autowired
	private ProductService productService;
	@Autowired
	private CategoryService categoryService;
	@Autowired
	private CategorySecService categorySecService;
	
	// --------------------------------------- 华丽分割线 ------------------------------
	/**
	 * 根据商品的ID进行查询商品:执行方法
	 */
	@RequestMapping("/findByPid.do")
	public String findByPid(Model model, HttpSession session,Product product) {
		List<Category> categoryList = categoryService.listAll();
		model.addAttribute("categoryList", categoryList);
		List<CategorySec> categorySecList = categorySecService.listAll();
		model.addAttribute("categorySecList", categorySecList);
		 Map<String, Object> map = getMap();
		 map.put("id",product.getId());