基于Java web的论坛BBS系统设计与实现

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项目名称

视频效果

https://www.bilibili.com/video/BV1AB4y1h7qx/

系统说明

对于BBS论坛系统来说，最主要的功能就是用户浏览帖子、发布帖子以及回复帖子。同时考虑用户所发布帖子的内容需要健康且合法，这就需要管理员加强对帖子的审核。如果用户想要在论坛发布帖子，前提是需要注册且处于登录状态。此外，为了便于从内容上对帖子加以区分，方便管理员对帖子的管理，还需要将论坛分为多个版块。还需要将用户划分为不同级别，根据用户级别的不同在论坛中为用户分配不同的权限，以进一步加强对论坛的管理。

综上，论坛既要实现对于帖子的管理，又要实现对于用户的管理，还要兼顾到各个功能模块之间的协调合作，共同完成BBS论坛系统的业务需求。下面采用UML用例模型对系统功能需求进行分析。

构建UML用例模型的第一步是确定模型中的使用者有哪些，确定使用者的原则有：谁是系统的维护者、谁是系统的参与者等。一般维护者处于系统内部，对系统有绝对的控制权；而参与者一般都位于系统的外部，处于系统的控制之外。

经过对BBS论坛系统的分析，可以确定本系统用例模型有二种，用户（用户分为游客和注册用户）和系统管理员。下面分别对这三个角色的功能进行描述：

1）用户

用户分为游客和注册用户，其中游客只能浏览论坛公共部分的内容，还可以注册成为论坛用户；注册用户则可以登录论坛、搜索帖子、发帖、回帖和查看个人中心。用户主要功能如下（图3-1为用

2）系统管理员

系统管理员主要负责系统的后台管理工作，主要功能如下（图3-2为系统管理员用例图）：

用户管理；
帖子管理；
版块管理；
公告管理；
帮助管理；

图3-2 系统管理员用例图

确定了用户用例模型和管理员用例模型后，就可以构建BBS论坛系统的用例模型，整个系统的用例图如图3-3系统总体用例图所示：

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；

技术栈

1. 后端：Spring+SpringMVC+Mybatis
2. 前端：JSP+CSS+JavaScript+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springmvc-servlet.xml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

运行截图

用户管理控制层:

package com.houserss.controller;import javax.servlet.http.HttpSession;import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
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 com.houserss.common.Const;
import com.houserss.common.Const.Role;
import com.houserss.common.ServerResponse;
import com.houserss.pojo.User;
import com.houserss.service.IUserService;
import com.houserss.service.impl.UserServiceImpl;
import com.houserss.util.MD5Util;
import com.houserss.util.TimeUtils;
import com.houserss.vo.DeleteHouseVo;
import com.houserss.vo.PageInfoVo;/*** Created by admin*/
@Controller
@RequestMapping("/user/")
public class UserController {@Autowiredprivate IUserService iUserService;/*** 用户登录* @param username* @param password* @param session* @return*/@RequestMapping(value = "login.do",method = RequestMethod.POST)@ResponseBodypublic ServerResponse<User> login(User user,String uvcode, HttpSession session){String code = (String)session.getAttribute("validationCode");if(StringUtils.isNotBlank(code)) {if(!code.equalsIgnoreCase(uvcode)) {return ServerResponse.createByErrorMessage("验证码不正确");}}ServerResponse<User> response = iUserService.login(user.getUsername(),user.getPassword());if(response.isSuccess()){session.setAttribute(Const.CURRENT_USER,response.getData());}return response;}}

管理员管理控制层:


package com.sxl.controller.admin;import java.util.List;
import java.util.Map;import javax.servlet.http.HttpServletRequest;import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;import com.sxl.controller.MyController;@Controller("adminController")
@RequestMapping(value = "/admin")
public class AdminController extends MyController {@RequestMapping(value = "/index")public String frame(Model model, HttpServletRequest request)throws Exception {return "/admin/index";}@RequestMapping(value = "/main")public String main(Model model, HttpServletRequest request)throws Exception {return "/admin/main";}@RequestMapping(value = "/tj1")public String tj1(Model model, HttpServletRequest request)throws Exception {String sql="select DATE_FORMAT(insertDate,'%Y-%m-%d') dates,sum(allPrice) price from t_order order by DATE_FORMAT(insertDate,'%Y-%m-%d')  desc";List<Map> list = db.queryForList(sql);model.addAttribute("list", list);System.out.println(list);return "/admin/tj/tj1";}@RequestMapping(value = "/password")public String password(Model model, HttpServletRequest request)throws Exception {return "/admin/password";}@RequestMapping(value = "/changePassword")public ResponseEntity<String> loginSave(Model model,HttpServletRequest request,String oldPassword,String newPassword) throws Exception {Map admin = getAdmin(request);if(oldPassword.equals(admin.get("password").toString())){String sql="update t_admin set password=? where id=?";db.update(sql, new Object[]{newPassword,admin.get("id")});return renderData(true,"1",null);}else{return renderData(false,"1",null);}}
}

修改密码业务逻辑:


package com.sxl.controller.admin;import java.util.Map;import javax.servlet.http.HttpServletRequest;import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;import com.sxl.controller.MyController;@Controller("userController")
@RequestMapping(value = "/user")
public class UserController extends MyController {@RequestMapping(value = "/index")public String frame(Model model, HttpServletRequest request)throws Exception {return "/user/index";}@RequestMapping(value = "/main")public String main(Model model, HttpServletRequest request)throws Exception {return "/user/main";}@RequestMapping(value = "/password")public String password(Model model, HttpServletRequest request)throws Exception {return "/user/password";}@RequestMapping(value = "/changePassword")public ResponseEntity<String> loginSave(Model model,HttpServletRequest request,String oldPassword,String newPassword) throws Exception {Map user = getUser(request);if(oldPassword.equals(user.get("password").toString())){String sql="update t_user set password=? where id=?";db.update(sql, new Object[]{newPassword,user.get("id")});return renderData(true,"1",null);}else{return renderData(false,"1",null);}}@RequestMapping(value = "/mine")public String mine(Model model, HttpServletRequest request)throws Exception {
Map user =getUser(request);Map map = db.queryForMap("select * from t_user where id=?",new Object[]{user.get("id")});model.addAttribute("map", map);		return "/user/mine";}@RequestMapping(value = "/mineSave")public ResponseEntity<String> mineSave(Model model,HttpServletRequest request,Long id,String username,String password,String name,String gh,String mobile) throws Exception{int result = 0;String sql="update t_user set name=?,gh=?,mobile=? where id=?";result = db.update(sql, new Object[]{name,gh,mobile,id});if(result==1){return renderData(true,"操作成功",null);}else{return renderData(false,"操作失败",null);}}}

通用管理模块:

package com.sxl.controller;import java.nio.charset.Charset;
import java.util.Locale;
import java.util.ResourceBundle;import javax.servlet.http.HttpServletRequest;import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;import com.sxl.util.JacksonJsonUtil;
import com.sxl.util.StringUtil;
import com.sxl.util.SystemProperties;public class BaseController {public static final Long EXPIRES_IN = 1000 * 3600 * 24 * 1L;// 1天@Autowiredprivate SystemProperties systemProperties;/*** 获得配置文件内容*/public String getConfig(String key) {return systemProperties.getProperties(key);}/*** 返回服务器地址 like http://192.168.1.1:8441/UUBean/*/public String getHostUrl(HttpServletRequest request) {String hostName = request.getServerName();Integer hostPort = request.getServerPort();String path = request.getContextPath();if (hostPort == 80) {return "http://" + hostName + path + "/";} else {return "http://" + hostName + ":" + hostPort + path + "/";}}/**** 获取当前的website路径 String*/public static String getWebSite(HttpServletRequest request) {String returnUrl = request.getScheme() + "://"+ request.getServerName();if (request.getServerPort() != 80) {returnUrl += ":" + request.getServerPort();}returnUrl += request.getContextPath();return returnUrl;}/*** 初始化HTTP头.* * @return HttpHeaders*/public HttpHeaders initHttpHeaders() {HttpHeaders headers = new HttpHeaders();MediaType mediaType = new MediaType("text", "html",Charset.forName("utf-8"));headers.setContentType(mediaType);return headers;}/*** 返回 信息数据* * @param status* @param msg* @return*/public ResponseEntity<String> renderMsg(Boolean status, String msg) {if (StringUtils.isEmpty(msg)) {msg = "";}String str = "{\"status\":\"" + status + "\",\"msg\":\"" + msg + "\"}";ResponseEntity<String> responseEntity = new ResponseEntity<String>(str,initHttpHeaders(), HttpStatus.OK);return responseEntity;}/*** 返回obj数据* * @param status* @param msg* @param obj* @return*/public ResponseEntity<String> renderData(Boolean status, String msg,Object obj) {if (StringUtils.isEmpty(msg)) {msg = "";}StringBuffer sb = new StringBuffer();sb.append("{");sb.append("\"status\":\"" + status + "\",\"msg\":\"" + msg + "\",");sb.append("\"data\":" + JacksonJsonUtil.toJson(obj) + "");sb.append("}");ResponseEntity<String> responseEntity = new ResponseEntity<String>(sb.toString(), initHttpHeaders(), HttpStatus.OK);return responseEntity;}/**** 获取IP（如果是多级代理，则得到的是一串IP值）*/public static String getIpAddr(HttpServletRequest request) {String ip = request.getHeader("x-forwarded-for");if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {ip = request.getHeader("Proxy-Client-IP");}if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {ip = request.getHeader("WL-Proxy-Client-IP");}if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {ip = request.getRemoteAddr();}if (ip != null && ip.length() > 0) {String[] ips = ip.split(",");for (int i = 0; i < ips.length; i++) {if (!"unknown".equalsIgnoreCase(ips[i])) {ip = ips[i];break;}}}return ip;}/*** 国际化获得语言内容* * @param key*            语言key* @param args* @param argsSplit* @param defaultMessage* @param locale* @return*/public static String getLanguage(String key, String args, String argsSplit,String defaultMessage, String locale) {String language = "zh";String contry = "cn";String returnValue = defaultMessage;if (!StringUtil.isEmpty(locale)) {try {String[] localeArray = locale.split("_");language = localeArray[0];contry = localeArray[1];} catch (Exception e) {}}try {ResourceBundle resource = ResourceBundle.getBundle("lang.resource",new Locale(language, contry));returnValue = resource.getString(key);if (!StringUtil.isEmpty(args)) {String[] argsArray = args.split(argsSplit);for (int i = 0; i < argsArray.length; i++) {returnValue = returnValue.replace("{" + i + "}",argsArray[i]);}}} catch (Exception e) {}return returnValue;}
}