/SpringMVC1/src/main/java/com/web/store/controller/HomeContr

//檔案位置：/SpringMVC1/src/main/java/com/web/store/controller/HomeController.java
//這是 Controller code
package com.web.store.controller;

import java.io.UnsupportedEncodingException;
import java.sql.Blob;

import javax.servlet.http.HttpServletRequest;
import javax.sql.rowset.serial.SerialBlob;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.multipart.MultipartFile;

import com.web.store.model.RecipeBean;
import com.web.store.service.IProductService;

@Controller
public class HomeController {

    private IProductService service = null;

    @Autowired
    public HomeController(IProductService service) {
        /* 從建構子注入service屬性 */
        this.service = service;
    }

    @RequestMapping("/")
    public String home() {
        // 這個method是一開始顯示首頁用的
        return "index";
    }

    @RequestMapping("/home")
    public String backHome() {
        // 這個method是為了讓我返回首頁用的
        return "index";
    }

    @RequestMapping(value = "/insert")
    public String insert() {
        // 新增
        // System.out.println("insert");
        return "insert";
    }

    @RequestMapping("/delete")
    public String delete() {
        // 刪除
        return "delete";
    }

    @RequestMapping("/update")
    public String update() {
        // 修改
        return "update";
    }

    @RequestMapping("/select")
    public String select() {
        // 查詢
        return "select";
    }

//  @RequestMapping("/InsertForm")
//  public String insertForm(HttpServletRequest request) throws UnsupportedEncodingException {
//      這是在學SpringMVC框架之前寫過的程式。
//      request.setCharacterEncoding("UTF-8");
//      // System.out.println("@RequestMapping(\"/InsertForm\")");
//      // recipe_name
//      // System.out.println("request.getParameter(\"recipe_name\")" +
//      // request.getParameter("recipe_name"));
//      RecipeBean recipeBean=new RecipeBean();
//      recipeBean.setRecipe_name(request.getParameter("recipe_name"));
//      recipeBean.setRecipe_quantity(request.getParameter("Recipe_quantity"));
//      recipeBean.setRecipe_image(null);//加入圖片
//      recipeBean.setRecipe_summary(request.getParameter("recipe_summary"));
//      recipeBean.setRecipe_time(request.getParameter("recipe_time"));
//      recipeBean.setRecipe_note(request.getParameter("recipe_note"));
//      recipeBean.setRecipe_date(null);//加入日期
//      service.insertRecipe(recipeBean);
//      return "successPage";//有一個JSP叫successPage.jsp
//  }

    /* 跟 <a href="insert">新增</a> 有關 */
    @RequestMapping(value = "/insert", method = RequestMethod.GET)
    public String getAddNewProductForm(Model model) {
        System.out.println("#1");
        RecipeBean recipe = new RecipeBean();
        model.addAttribute("RecipeBean", recipe);
        return "insert";/* 呼叫insert.jsp檔案 */
    }

    @RequestMapping(value = "/insert", method = RequestMethod.POST)
    public String processAddNewProductForm(@ModelAttribute("RecipeBean") RecipeBean recipe, Model model,
            BindingResult result, HttpServletRequest request) throws UnsupportedEncodingException {
        request.setCharacterEncoding("UTF-8");
        System.out.println("#2");
        System.out.println("recipeBean.getRecipe_name() -> " + recipe.getRecipe_name());
        System.out.println("request.getParameter(\"recipe_name\") -> " + request.getParameter("recipe_name"));
        recipe.setRecipe_name("測試名字");
        // 重要事項-start
        // 這三個地方一定要一樣，都只打RecipeBean
        // <form:form method="POST" modelAttribute="【RecipeBean】"
        // model.addAttribute("【RecipeBean】", recipeBean);
        // public String processAddNewProductForm(@ModelAttribute("【RecipeBean】")
        // RecipeBean recipeBean
        // 重要事項-end

        /* 開始處理圖片檔案-start */
        MultipartFile imageFile = recipe.getImage_file();
        // 建立Blob物件，交由 Hibernate 寫入資料庫
        if (imageFile != null && !imageFile.isEmpty()) {
            String originalFilename = imageFile.getOriginalFilename();
            recipe.setFileName(originalFilename);

            try {
                byte[] byteArray = imageFile.getBytes();
                Blob recipe_image = new SerialBlob(byteArray);
                recipe.setRecipe_image(recipe_image);
            } catch (Exception e) {
                e.printStackTrace();
                throw new RuntimeException("圖片上傳發生異常：" + e.getMessage());
            }
        }
        /* 開始處理圖片檔案-end */

        service.insertRecipe(recipe);

        // 將上傳的檔案移到指定的資料夾
        return "redirect:/successPage";/* 讓瀏覽器再次發出請求，呼叫successPage.jsp檔案 */
    }// end of processAddNewProductForm mathod

    @RequestMapping(value = "/successPage")
    public String successPage() {
        return "successPage";
    }
}