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基于javaweb的JSP+Servlet个人日记管理系统(java+jsp+servlet++mysql)

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

个人日记的增删改查管理

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技术框架

JSP Servlet MySQL CSS JavaScript layui

基于javaweb的JSP+Servlet个人日记管理系统(java+jsp+servlet++mysql)

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 * Servlet implementation class DailyAddServlet
 */
@WebServlet("/dailyAddServlet")
public class DailyAddServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public DailyAddServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doPost(request, response);
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		request.setCharacterEncoding("utf-8");
		response.setCharacterEncoding("utf-8");
		
		HttpSession session = request.getSession();
		User user = (User)session.getAttribute("user");
		String dailyJson = request.getParameter("daily");
		
		JSONObject jsonObject = JSON.parseObject(dailyJson);
		String title = jsonObject.getString("title");
		String context = jsonObject.getString("context");
		String records = jsonObject.getString("records");
		String type = jsonObject.getString("type");
		
		Daily daily = new Daily();
		daily.setTitle(title);
		daily.setContext(context);
		daily.setUid(user.getUid());
		daily.setRecords(records);
		daily.setType(type);
		
		DailyService dailyService = new DailyServiceImpl();
		int result = dailyService.insertDaily(daily);
		Map<String,Object> map = new HashMap<>();
		if(result>0) {
			map.put("code", 0);
			map.put("msg", "添加成功");
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//		response.getWriter().close();
	}

}
package cn.demo.servlet;




@WebServlet("/userServlet")
public class UserServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
    private UserService userService = null;

    public UserServlet() {
        userService = new UserServiceImpl();
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doPost(request, response);
    }

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        response.setCharacterEncoding("utf-8");
        HttpSession session = request.getSession();
        User user = userService.login(request.getParameter("username"), request.getParameter("password"));
        if (user != null) {
            session.setAttribute("user", user);
//            session.setAttribute("msg", "login success!");
//            session.setAttribute("url", "/index.jsp");
//            request.getRequestDispatcher("/forward.jsp").forward(request, response);
            response.sendRedirect("dailyListServlet");
        } else {
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		daily.setContext(context);
		daily.setUid(user.getUid());
		daily.setRecords(records);
		daily.setType(type);
		daily.setDid(jsonObject.getShort("did"));
		
		DailyService dailyService = new DailyServiceImpl();
		int result = dailyService.updateDaily(daily);
		Map<String,Object> map = new HashMap<>();
		if(result>0) {
			map.put("code", 0);
			map.put("msg", "修改成功");
			map.put("count", 0);
		}else {
			map.put("code", 500);
			map.put("msg", "服务器异常，修改失败");
			map.put("count", 0);
		}
		response.getWriter().print(JSON.toJSON(map));
		response.getWriter().close();

//				response.getWriter().print("3");
//		response.getWriter().close();
	}

}
package cn.demo.servlet;




@WebServlet("/userServlet")
public class UserServlet extends HttpServlet {
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		daily.setUid(user.getUid());
		daily.setRecords(records);
		daily.setType(type);
		daily.setDid(jsonObject.getShort("did"));
		
		DailyService dailyService = new DailyServiceImpl();
		int result = dailyService.updateDaily(daily);
		Map<String,Object> map = new HashMap<>();
		if(result>0) {
			map.put("code", 0);
			map.put("msg", "修改成功");
			map.put("count", 0);
		}else {
			map.put("code", 500);
			map.put("msg", "服务器异常，修改失败");
			map.put("count", 0);
		}
		response.getWriter().print(JSON.toJSON(map));
		response.getWriter().close();

//				response.getWriter().print("3");
//		response.getWriter().close();
	}

}
package cn.demo.servlet;




@WebServlet("/userServlet")
public class UserServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
    private UserService userService = null;

    public UserServlet() {
        userService = new UserServiceImpl();
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				map.put("count", 0);
			}
		out.print(JSON.toJSON(map));
		out.close();
	}

}
package cn.demo.servlet;


/**
 * Servlet implementation class HomeServlet
 */
@WebServlet("/homeServlet")
public class HomeServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
	private static final String SHOW = "show";
	private static final String RECORD = "add";
	private static final String CLEAR = "del";
	private static final String UPDATE = "up";
	
    public HomeServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doPost(request,response);
	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		request.setCharacterEncoding("utf-8");
		String action = request.getParameter("action");
		if(SHOW.equals(action)) {
			response.sendRedirect("dailyListServlet");
		}else if(RECORD.equals(action)) {
			response.sendRedirect("daily-record.jsp");
		}else if(CLEAR.equals(action)) {
			response.sendRedirect("daily-clear.jsp");
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//				response.getWriter().print("3");
//		response.getWriter().close();
	}

}
package cn.demo.servlet;




@WebServlet("/userServlet")
public class UserServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
    private UserService userService = null;

    public UserServlet() {
        userService = new UserServiceImpl();
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doPost(request, response);
    }

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        response.setCharacterEncoding("utf-8");
        HttpSession session = request.getSession();
        User user = userService.login(request.getParameter("username"), request.getParameter("password"));
        if (user != null) {
            session.setAttribute("user", user);
//            session.setAttribute("msg", "login success!");
//            session.setAttribute("url", "/index.jsp");
//            request.getRequestDispatcher("/forward.jsp").forward(request, response);

项目链接：
https://javayms.github.io?id=051521172402102ab
https://javayms.pages.dev?id=051521172402102ab