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基于javaweb的JSP+Servlet日记系统(java+jsp+bootstrap+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

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基于javaweb的JSP+Servlet日记系统(java+jsp+bootstrap+servlet+mysql)

项目介绍

本项目主要功能有：  写日记 查看日记 日记删除 日记修改 日记类别添加 日记类别修改 日记类别删除 个人信息查看 个人信息修改 分页功能

环境需要

1.运行环境：最好是java jdk 1.8，我们在这个平台上运行的。其他版本理论上也可以。 2.IDE环境：IDEA，Eclipse,Myeclipse都可以。推荐IDEA; 3.tomcat环境：Tomcat 7.x,8.x,9.x版本均可 4.硬件环境：windows 7/8/10 1G内存以上；或者 Mac OS；  5.数据库：MySql 5.7版本； 6.是否Maven项目: 否；查看源码目录中是否包含pom.xml；若包含，则为maven项目，否则为非maven项目

技术栈

  1. 后端：servlet 2. 前端：JSP+bootstrap+jQuery

使用说明

  1. 使用Navicat或者其它工具，在mysql中创建对应名称的数据库，并导入项目的sql文件； 2. 使用IDEA/Eclipse/MyEclipse导入项目，Eclipse/MyEclipse导入时，若为maven项目请选择maven; 若为maven项目，导入成功后请执行maven clean;maven install命令，然后运行； 3. 将项目中db.properties配置文件中的数据库配置改为自己的配置; 4. 运行项目，在浏览器中输入http://localhost:8080/ 登录

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	/**
	 * 日记删除
	 * @param request
	 * @param response
	 * @throws ServletException
	 * @throws IOException
	 */
	private void diaryDelete(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
		String diaryId=request.getParameter("diaryId");
		Connection con=null;
		try{
			con=dbUtil.getCon();
			diaryDao.diaryDelete(con, diaryId);
			request.getRequestDispatcher("main?all=true").forward(request, response);
		}catch(Exception e){
			e.printStackTrace();
		}finally{
			try {
				dbUtil.closeCon(con);
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
}
package com.xyj.web;



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User user=(User)session.getAttribute("currentUser");
boolean imageChange=false;
while(itr.hasNext()){
	FileItem item=(FileItem)itr.next();
	if(item.isFormField()){
		String fieldName=item.getFieldName();
		if("nickName".equals(fieldName)){
			user.setNickName(item.getString("utf-8"));
		}
		if("mood".equals(fieldName)){
			user.setMood(item.getString("utf-8"));
		}
	}else if(!"".equals(item.getName())){
		try{
			imageChange=true;
			String imageName=DateUtil.getCurrentDateStr();
			user.setImageName(imageName+"."+item.getName().split("\\.")[1]);
			String filePath=PropertiesUtil.getValue("imagePath")+imageName+"."+item.getName().split("\\.")[1];
			item.write(new File(filePath));
		}catch(Exception e){
			e.printStackTrace();
		}
	}
}

if(!imageChange){
	user.setImageName(user.getImageName().replaceFirst(PropertiesUtil.getValue("imageFile"), ""));
}

Connection con=null;
try {
	con=dbUtil.getCon();
	int saveNums=userDao.userUpdate(con, user);
	if(saveNums>0){
		user.setImageName(PropertiesUtil.getValue("imageFile")+user.getImageName());
		session.setAttribute("currentUser", user);
		request.getRequestDispatcher("main?all=true").forward(request, response);
	}else{
		request.setAttribute("currentUser", user);
		request.setAttribute("error", "保存失败！");
		request.setAttribute("mainPage", "user/userSave.jsp");
		request.getRequestDispatcher("mainTemp.jsp").forward(request, response);
	}
} catch (Exception e) {
	// TODO Auto-generated catch block
	e.printStackTrace();
}finally{
	try {
		dbUtil.closeCon(con);
	} catch (Exception e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
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					imageChange=true;
					String imageName=DateUtil.getCurrentDateStr();
					user.setImageName(imageName+"."+item.getName().split("\\.")[1]);
					String filePath=PropertiesUtil.getValue("imagePath")+imageName+"."+item.getName().split("\\.")[1];
					item.write(new File(filePath));
				}catch(Exception e){
					e.printStackTrace();
				}
			}
		}
		
		if(!imageChange){
			user.setImageName(user.getImageName().replaceFirst(PropertiesUtil.getValue("imageFile"), ""));
		}
		
		Connection con=null;
		try {
			con=dbUtil.getCon();
			int saveNums=userDao.userUpdate(con, user);
			if(saveNums>0){
				user.setImageName(PropertiesUtil.getValue("imageFile")+user.getImageName());
				session.setAttribute("currentUser", user);
				request.getRequestDispatcher("main?all=true").forward(request, response);
			}else{
				request.setAttribute("currentUser", user);
				request.setAttribute("error", "保存失败！");
				request.setAttribute("mainPage", "user/userSave.jsp");
				request.getRequestDispatcher("mainTemp.jsp").forward(request, response);
			}
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			try {
				dbUtil.closeCon(con);
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}

}
package com.xyj.web;

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		e.printStackTrace();
	}finally{
		try {
			dbUtil.closeCon(con);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

/**
 * 日记类别准备保存
 * @param request
 * @param response
 * @throws ServletException
 * @throws IOException
 */
private void diaryTypePreSave(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
	String diaryTypeId=request.getParameter("diaryTypeId");
	if(StringUtil.isNotEmpty(diaryTypeId)){
		Connection con=null;
		try{
			con=dbUtil.getCon();
			DiaryType diaryType=diaryTypeDao.diaryTypeShow(con,diaryTypeId);
			request.setAttribute("diaryType", diaryType);
		}catch(Exception e){
			e.printStackTrace();
		}finally{
			try {
				dbUtil.closeCon(con);
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
	request.setAttribute("mainPage", "diaryType/diaryTypeSave.jsp");
	request.getRequestDispatcher("mainTemp.jsp").forward(request, response);
}

/**
 * 日记类别保存
 * @param request
 * @param response
 * @throws ServletException
 * @throws IOException
 */
private void diaryTypeSave(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
	String diaryTypeId=request.getParameter("diaryTypeId");
	String typeName=request.getParameter("typeName");
	DiaryType diaryType=new DiaryType(typeName);
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	if(StringUtil.isEmpty(page)){  // 判断当前页是否是空
		page="1";  // 假如是空，默认赋值1
	}
	Connection con=null;
	// 封装分页组件
	PageBean pageBean=new PageBean(Integer.parseInt(page),Integer.parseInt(PropertiesUtil.getValue("pageSize")));
	try {
		con=dbUtil.getCon();
		List<Diary> diaryList=diaryDao.diaryList(con,pageBean,diary);  // 获取日记对象集合
		int total=diaryDao.diaryCount(con,diary); // 获取总记录数
		// 获取分页代码
		String pageCode=this.genPagation(total, Integer.parseInt(page), Integer.parseInt(PropertiesUtil.getValue("pageSize")));
		request.setAttribute("pageCode", pageCode);
		request.setAttribute("diaryList", diaryList);
		session.setAttribute("diaryTypeCountList", diaryTypeDao.diaryTypeCountList(con));
		session.setAttribute("diaryCountList", diaryDao.diaryCountList(con));
		request.setAttribute("mainPage", "diary/diaryList.jsp");
		request.getRequestDispatcher("mainTemp.jsp").forward(request, response);
	} catch (Exception e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}finally{
		try {
			dbUtil.closeCon(con);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

/**
 * 获取分页代码
 * @param totalNum  总记录数
 * @param currentPage 当前页
 * @param pageSize 每页大小
 * @return
 */
private String genPagation(int totalNum,int currentPage,int pageSize){
	int totalPage=totalNum%pageSize==0?totalNum/pageSize:totalNum/pageSize+1;
	StringBuffer pageCode=new StringBuffer();
	pageCode.append("<li><a href='main?page=1'>首页</a></li>");
	if(currentPage==1){
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 */
private void userSave(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
	FileItemFactory factory=new DiskFileItemFactory();
	ServletFileUpload upload=new ServletFileUpload(factory);
	List<FileItem> items=null;
	try {
		items=upload.parseRequest((RequestContext) request);
	} catch (FileUploadException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
	Iterator<FileItem> itr=items.iterator();
	
	HttpSession session=request.getSession();
	
	User user=(User)session.getAttribute("currentUser");
	boolean imageChange=false;
	while(itr.hasNext()){
		FileItem item=(FileItem)itr.next();
		if(item.isFormField()){
			String fieldName=item.getFieldName();
			if("nickName".equals(fieldName)){
				user.setNickName(item.getString("utf-8"));
			}
			if("mood".equals(fieldName)){
				user.setMood(item.getString("utf-8"));
			}
		}else if(!"".equals(item.getName())){
			try{
				imageChange=true;
				String imageName=DateUtil.getCurrentDateStr();
				user.setImageName(imageName+"."+item.getName().split("\\.")[1]);
				String filePath=PropertiesUtil.getValue("imagePath")+imageName+"."+item.getName().split("\\.")[1];
				item.write(new File(filePath));
			}catch(Exception e){
				e.printStackTrace();
			}
		}
	}
	
	if(!imageChange){

项目链接：
https://javayms.github.io?id=091122532008200py
https://javayms.pages.dev?id=091122532008200py