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基于javaweb的JSP+Servlet美食菜谱分享平台(java+servlet+mysql+jsp)

更新于

运行环境

Java≥8、MySQL≥5.7、Tomcat≥8

开发工具

eclipse/idea/myeclipse/sts等均可配置运行

适用

课程设计，大作业，毕业设计，项目练习，学习演示等

功能说明

051123492409

061123492409

071123492409

081123492409

091123492409

111123492409

基于javaweb的JSP+Servlet美食菜谱分享平台(java+servlet+mysql+jsp)

启动前先修改上传路径为项目编译后的目录：
yjf.psyd.servlet.CreateRecipeServlet.path

首页：
http://localhost:8080/index

登录：
user1 123456
user2 123456
user3 123456

搜索、查看、收藏、创建菜谱等

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		// 请求转发
		req.getRequestDispatcher("/recipeStepRetail").forward(req, resp);
		return;

	}

	protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		doGet(req, resp);
	}
}




@WebServlet("/recipeCollection")
public class RecipeCollectionServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;

	/**
	 * @see HttpServlet#HttpServlet()
	 */
	public RecipeCollectionServlet() {
		super();
	}
	
	// 处理菜谱收藏功能
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		// 1、获取请求信息
		String status = req.getParameter("status");
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        List<String> categorys = new LinkedList<>();
        String coverFilePath = null;
        List<File> stepFiles = new LinkedList<>();
        List<String> stepFilesPath = new LinkedList<>();
        User user = null;

        // 获取系统当前日期
        Date dateNow = new Date(System.currentTimeMillis());
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
        createDate = dateFormat.format(dateNow);
//		System.out.println(createDate);

        // 检查前台表单form是否有multipart
        if (ServletFileUpload.isMultipartContent(req)) {
            FileItemFactory factory = new DiskFileItemFactory();
            ServletFileUpload upload = new ServletFileUpload(factory);
            // 通过parseRequest解析form中的所有请求字段，并保存到items集合中
            List<FileItem> items = null;
            try {
                items = upload.parseRequest(req);
            } catch (FileUploadException e1) {
                e1.printStackTrace();
            }
            // 遍历List中的数据
//			Iterator<FileItem> iter = items.iterator();
//			while (iter.hasNext()) {
//				FileItem item = iter.next();
            for (FileItem item : items) {
                String itemName = item.getFieldName();
                // 判断前台字段是普通form表单字段，还是文件字段
                if (item.isFormField()) {
                    // 普通上传
                    if (itemName.equals("recTitle")) {
                        title = item.getString("utf-8");
                    } else if (itemName.equals("recInfo")) {
                        info = item.getString("utf-8");
                    } else if (itemName.equals("recMaterial")) {
                        material = item.getString("utf-8");
                    } else if (itemName.equals("recCategory")) {
                        categorys.add(item.getString("utf-8"));
                    } else {
                        if (!"".equals(item.getString("utf-8"))) {
                            stepInfos.add(item.getString("utf-8"));
                        } else {
                            stepInfos.add("");
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	public RecipeDetailServlet() {
		super();
	}

	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		// 1、获取请求信息
		String recipeId = req.getParameter("recipeId");
		// 获取session对象，用session判断是否收藏
		HttpSession hs = req.getSession();
		// 把session中的值传到user对象中
		User user = (User) hs.getAttribute("user");

		// 2、处理请求信息
		RecipeService rs = new RecipeServiceImpl();
		Recipe r = rs.recipeDetailService(recipeId, user);
		// 3、响应请求结果
		req.setAttribute("recipe", r);
		// 输出r
//			System.out.println(r);
		// 请求转发
		req.getRequestDispatcher("/recipeStepRetail").forward(req, resp);
		return;

	}

	protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		doGet(req, resp);
	}
}




@WebServlet("/recipeCollection")
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public class RecipeCollectionServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;

	/**
	 * @see HttpServlet#HttpServlet()
	 */
	public RecipeCollectionServlet() {
		super();
	}
	
	// 处理菜谱收藏功能
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		// 1、获取请求信息
		String status = req.getParameter("status");
		String RecipeId = req.getParameter("RecipeId");

		// 获取session对象
		HttpSession hs = req.getSession();
		// 把session中的值传到user对象中
		User user = (User) hs.getAttribute("user");

		RecipeService rs = new RecipeServiceImpl();
		// 2、判断status状态
		if (status.equals("false")) {
			// 3、处理请求结果；插入收藏菜谱
			int index = rs.insertCollectionRecipe(RecipeId, user);
			if(index>0) {
				resp.getWriter().write("{\"index\":" + index + "}");
			}
		} else {
			// 3、处理请求结果：删除收藏菜谱
			int index = rs.deleteCollectionRecipe(RecipeId, user);
			if(index>0) {
				resp.getWriter().write("{\"index\":" + index + "}");
			}
		}
	}

}


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//		System.out.println("封面上传成功！路径：" + coverFilePath);
//		for(File stepFilePath : stepFiles) {
//			System.out.println("步骤上传成功！路径：" + stepFilePath);
//		}
//		for (String stepInfo : stepInfos) {
//			System.out.println(stepInfo);
//		}
//		for (String category : categorys) {
//			System.out.println(category);
//		}
        RecipeService us = new RecipeServiceImpl();
        int index = us.createRecipeService(createDate, title, info, material, stepInfos, categorys, coverFilePath,
                stepFilesPath, user);
        // 响应处理结果
        if (index > 0) {
            // 弹窗提示，点击后转跳
            PrintWriter out = resp.getWriter();
        } else {
            PrintWriter out = resp.getWriter();
        }
    }
}



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		// 请求转发
		req.getRequestDispatcher("/recipeStepRetail").forward(req, resp);
		return;

	}

	protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		doGet(req, resp);
	}
}




@WebServlet("/recipeCollection")
public class RecipeCollectionServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;

	/**
	 * @see HttpServlet#HttpServlet()
	 */
	public RecipeCollectionServlet() {
		super();
	}
	
	// 处理菜谱收藏功能
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		// 1、获取请求信息
		String status = req.getParameter("status");
		String RecipeId = req.getParameter("RecipeId");

		// 获取session对象
		HttpSession hs = req.getSession();
		// 把session中的值传到user对象中
		User user = (User) hs.getAttribute("user");

		RecipeService rs = new RecipeServiceImpl();
		// 2、判断status状态
		if (status.equals("false")) {
			// 3、处理请求结果；插入收藏菜谱
			int index = rs.insertCollectionRecipe(RecipeId, user);
			if(index>0) {

项目链接：
https://javayms.github.io?id=041123492409201fw
https://javayms.pages.dev?id=041123492409201fw