Java教程
Java项目:在线新闻平台系统(java+jsp+jdbc+mysql)
本文主要是介绍Java项目:在线新闻平台系统(java+jsp+jdbc+mysql)，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！
源码获取：博客首页 "资源" 里下载！
一、项目简述
功能： 用户的登录注册，新闻的分类查询，评论留言，投稿，新闻的后台管理，发布，审核，投稿管理以及汇总统计等等。
二、项目运行
环境配置： Jdk1.8 + Tomcat8.5 + mysql + Eclispe (IntelliJ IDEA,Eclispe,MyEclispe,Sts 都支持)
项目技术： Jsp + Jdbc + Servlert + html+ css + JavaScript + JQuery + Ajax + Fileupload
用户登录控制器：
/**
* 用户登录控制器
*/
@WebServlet("/admin/*")
public class LoginServlet extends BaseServlet{
private UmsUserServiceImpl umsUserService = new UmsUserServiceImpl();
private UmsUserDaoImpl userDao = new UmsUserDaoImpl();
public void doLogin(HttpServletRequest request, HttpServletResponse response) throws IOException {
int userId = 0;
String userName = request.getParameter("userName");
String passWord = request.getParameter("passWord");
String roleStr = request.getParameter("role");
String code = request.getParameter("code");
Integer role = Integer.valueOf(roleStr);
if (role == Role.Admin.getRoleCode()){
Admin admin = new Admin();
admin.setUserName(userName);
admin.setPassWord(passWord);
userId = umsUserService.login(admin);
}else if (role == Role.User.getRoleCode()){
User user = new User();
user.setUserName(userName);
user.setPassWord(passWord);
userId = umsUserService.userLogin(user);
}
String codeSession = (String) request.getSession().getAttribute("code");
System.out.println("验证码"+codeSession);
if (!codeSession.equalsIgnoreCase(code)){
ServletResp.resp(response, CommonResult.failed("验证码有误"));
return;
}
if (userId != 0){
request.getSession().setAttribute("userName", userName);
request.getSession().setAttribute("role", role);
request.getSession().setAttribute("userId", userId);
ServletResp.resp(response, CommonResult.success());
}else {
ServletResp.resp(response, CommonResult.failed("登录失败，账号密码有误!"));
}
}
public void toLogin(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
request.getRequestDispatcher("front/page/login/login.html").forward(request, response);
}
public void toIndex(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
Integer role = (Integer) request.getSession().getAttribute("role");
if (role == null){
response.sendRedirect("admin?method=toLogin");
return;
}
if (Role.Admin.getRoleCode()!=role || role == null){
response.sendRedirect("admin?method=toLogin");
return;
}
request.getRequestDispatcher("front/index.html").forward(request, response);
}
public void doLogOut(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
request.getSession().removeAttribute("userName");
request.getSession().removeAttribute("userId");
request.getSession().removeAttribute("role");
ServletResp.resp(response, CommonResult.success("注销成功"));
}
public void toRegist(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
request.getRequestDispatcher("front/page/login/regist.html").forward(request, response);
}
/**
* 普通用户注册
* @param request
* @param response
*/
public void doRegist(HttpServletRequest request, HttpServletResponse response) {
String reqBody = JsonUtils.getJson(request);
User user = JsonUtils.fromJson(reqBody, User.class);
int result = userDao.regist(user);
if (result == 0){
ServletResp.resp(response, CommonResult.failed("注册失败"));
}else{
ServletResp.resp(response, CommonResult.success("注册成功"));
}
}
/**
* 检查用户名是否重复
* @param request
* @param response
*/
public void checkUsername(HttpServletRequest request, HttpServletResponse response){
String userName = request.getParameter("userName");
int result = userDao.checkUsername(userName);
if (result == 1){
ServletResp.resp(response, CommonResult.success("用户名可用"));
}else {
ServletResp.resp(response, CommonResult.failed("用户名已存在"));
}
}
public void getCode(HttpServletRequest request, HttpServletResponse response){
//创建对象
VerifyCode vc = new VerifyCode();
//获取图片对象
BufferedImage bi = vc.getImage();
//获得图片的文本内容
String text = vc.getText();
// 将系统生成的文本内容保存到session中
request.getSession().setAttribute("code", text);
//向浏览器输出图片
try {
VerifyCode.output(bi, response.getOutputStream());
} catch (IOException e) {
e.printStackTrace();
}
}
}
评论模块：
/**
* 评论模块
*/
@WebServlet("/comment/*")
public class CommentServlet extends BaseServlet {
/**
* （客户端）获取文章评论
* @param request
* @param response
*/
public void getComments(HttpServletRequest request, HttpServletResponse response){
String idStr = request.getParameter("articleId");
Integer articleId = Integer.valueOf(idStr);
List<Comment> commentList = new CmsCommentDaoImpl().getComments(articleId);
if (commentList!=null){
ServletResp.resp(response, CommonPage.success(commentList));
}else {
ServletResp.resp(response, CommonResult.failed());
}
}
/**
* （客户端）添加文章评论
* @param request
* @param response
*/
public void addComment(HttpServletRequest request, HttpServletResponse response){
String reqBody = JsonUtils.getJson(request);
Comment comment = JsonUtils.fromJson(reqBody, Comment.class);
String userName = (String) request.getSession().getAttribute("userName");
Integer userId = (Integer) request.getSession().getAttribute("userId");
Integer role = (Integer) request.getSession().getAttribute("role");
if (userId == null || Role.Admin.getRoleCode()==role){
ServletResp.resp(response, CommonResult.unauthorized());
}
comment.setUsername(userName);
comment.setUserId(userId);
int result = new CmsCommentDaoImpl().doComment(comment);
if (result == 1){
ServletResp.resp(response, CommonResult.success("评论成功，审核通过后显示"));
}else {
ServletResp.resp(response, CommonResult.failed("评论失败"));
}
}
/**
* （管理端）获取等待审核的评论
* @param request
* @param response
*/
public void getCommentWaitCheck(HttpServletRequest request, HttpServletResponse response) throws IOException {
Integer role = (Integer) request.getSession().getAttribute("role");
if (Role.Admin.getRoleCode()!=role){
response.sendRedirect("admin?method=toLogin");
}
String pageNumStr = request.getParameter("page");
String pageSizeStr = request.getParameter("limit");
if (pageNumStr == null || pageSizeStr == null){
ServletResp.resp(response, CommonResult.validateFailed());
}
int pageSize = Integer.valueOf(pageSizeStr);
int pageNum = Integer.valueOf(pageNumStr);
pageNum = (pageNum-1) * pageSize;
List<Map<String,Object>> allComments = new CmsCommentDaoImpl().getCommentWaitCheck(pageNum,pageSize);
if (allComments!=null){
ServletResp.resp(response, CommonPage.success(allComments));
}else{
ServletResp.resp(response, CommonResult.failed());
}
}
/**
* 更新评论
* @param request
* @param response
*/
public void updateComment(HttpServletRequest request, HttpServletResponse response){
String reqBody = JsonUtils.getJson(request);
Comment comment = JsonUtils.fromJson(reqBody, Comment.class);
int result = new CmsCommentDaoImpl().updateComment(comment);
if (result == 1){
ServletResp.resp(response, CommonResult.success("修改评论状态成功"));
}else {
ServletResp.resp(response, CommonResult.failed());
}
}
}
文章控制器：
/**
* 文章控制器
*/
@WebServlet("/article/*")
public class ArticleServlet extends BaseServlet {
private CmsArticleService cmsArticleService = new CmsArticleServiceImpl();
/**
* （管理端）分页获取文章
* @param request
* @param response
*/
public void getAllArticle(HttpServletRequest request, HttpServletResponse response) throws IOException {
Integer role = (Integer) request.getSession().getAttribute("role");
if (Role.Admin.getRoleCode()!=role){
response.sendRedirect("admin?method=toLogin");
}
String pageNumStr = request.getParameter("page");
String pageSizeStr = request.getParameter("limit");
if (pageNumStr == null || pageSizeStr == null){
ServletResp.resp(response, CommonResult.validateFailed());
}
int pageSize = Integer.valueOf(pageSizeStr) ;
int pageNum = Integer.valueOf(pageNumStr);
pageNum = (pageNum-1) * pageSize;
List<Article> allArticleInfo = cmsArticleService.getAllArticleInfo(pageNum, pageSize);
if (allArticleInfo != null){
String success = CommonPage.success(allArticleInfo);
ServletResp.resp(response, success);
}else {
ServletResp.resp(response, CommonResult.failed());
}
}
/**
* （管理端|客户端）查看文章详情
* @param request
* @param response
*/
public void getArticleById(HttpServletRequest request, HttpServletResponse response) {
String articleIdStr = request.getParameter("articleId");
Integer articleId = Integer.valueOf(articleIdStr);
Article article = cmsArticleService.getArticleById(articleId);
System.out.println("request.getSession().getAttribute(\"role\") = " + request.getSession().getAttribute("role"));
if (article != null){
if(article.getIsShow() == 1 || request.getSession().getAttribute("role").equals(Role.Admin.getRoleCode())){
ServletResp.resp(response, CommonResult.success(article));
}else {
ServletResp.resp(response, CommonResult.failed("文章不见了，去看看其他文章吧"));
}
}else {
ServletResp.resp(response, CommonResult.failed("文章不存在"));
}
}
/**
* （管理端）获取投稿文章
* @param request
* @param response
*/
public void getArticleByUser(HttpServletRequest request, HttpServletResponse response){
String pageNumStr = request.getParameter("page");
String pageSizeStr = request.getParameter("limit");
if (pageNumStr == null || pageSizeStr == null){
ServletResp.resp(response, CommonResult.validateFailed());
}
int pageSize = Integer.valueOf(pageSizeStr);
int pageNum = Integer.valueOf(pageNumStr);
pageNum = (pageNum-1) * pageSize;
List<Article> allArticleInfo = cmsArticleService.getArticleByUser(pageNum, pageSize);
if (allArticleInfo != null){
String success = CommonPage.success(allArticleInfo);
ServletResp.resp(response, success);
}else {
ServletResp.resp(response, CommonResult.failed());
}
}
/**
* （客户端|管理端）添加（投稿）文章
* @param request
* @param response
*/
public void add(HttpServletRequest request, HttpServletResponse response){
String reqBody = JsonUtils.getJson(request);
Article article = JsonUtils.fromJson(reqBody, Article.class);
String userName = (String)request.getSession().getAttribute("userName");
Integer role = (Integer) request.getSession().getAttribute("role");
Integer userId = (Integer) request.getSession().getAttribute("userId");
if (userId == null){
ServletResp.resp(response, CommonResult.unauthorized());
//return;
}
// 根据角色
int count = 0;
article.setEditorId(userId);
article.setRole(role);
if (role == Role.Admin.getRoleCode()){
article.setIsCheck(1);
count = cmsArticleService.add(article);
}else{
// 用户需要审核才可以发布
article.setIsCheck(0);
count = cmsArticleService.add(article);
}
if (count != 0){
ServletResp.resp(response, CommonResult.success());
}else {
ServletResp.resp(response, CommonResult.failed());
}
}
/**
* （管理端）更新文章
* @param request
* @param response
*/
public void update(HttpServletRequest request, HttpServletResponse response){
String reqBody = JsonUtils.getJson(request);
Article article = JsonUtils.fromJson(reqBody, Article.class);
int count = cmsArticleService.update(article);
if (count != 0){
ServletResp.resp(response, CommonResult.success());
}else {
ServletResp.resp(response, CommonResult.failed());
}
}
/**
* (客户端)查询该分类下可以显示的文章列表
* @param request
* @param response
*/
public void getArticleListByCatelogyId(HttpServletRequest request, HttpServletResponse response){
String categoryIdStr = request.getParameter("categoryId");
Integer categoryId = Integer.valueOf(categoryIdStr);
Map<String,Object> map = cmsArticleService.getArticleListByCatelogyId(categoryId);
if (map != null){
ServletResp.resp(response, CommonResult.success(map));
}else {
ServletResp.resp(response, CommonResult.failed());
}
}
/**
* （管理端）删除文章
* @param request
* @param response
*/
public void delete(HttpServletRequest request, HttpServletResponse response){
String newsIdStr = request.getParameter("newsId");
Integer newsId = Integer.valueOf(newsIdStr);
int count = cmsArticleService.delete(newsId);
if (count != 0){
ServletResp.resp(response, CommonResult.success("删除成功"));
}else {
ServletResp.resp(response, CommonResult.failed());
}
}
/**
* （客户端）跳转客户端投稿
* @param request
* @param response
* @throws ServletException
* @throws IOException
*/
public void toPostNews(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.sendRedirect("postNewsDetail.html");
//request.getRequestDispatcher("front/page/news/postNewsDetail.html").forward(request, response);
}
/**
* （管理端）更新状态
* @param request
* @param response
* @throws ServletException
* @throws IOException
*/
public void changeCheck(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String reqBody = JsonUtils.getJson(request);
Article article = JsonUtils.fromJson(reqBody, Article.class);
int count = cmsArticleService.changeCheck(article);
if (count != 0){
ServletResp.resp(response, CommonResult.success());
}else {
ServletResp.resp(response, CommonResult.failed());
}
}
/**
* (管理端)获取统计数据
* @param request
* @param response
* @throws ServletException
* @throws IOException
*/
public void getTotalData(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String reqBody = JsonUtils.getJson(request);
Article article = JsonUtils.fromJson(reqBody, Article.class);
Map<String, Object> totalData = new CmsArticleDaoImpl().getTotalData();
if (totalData != null){
ServletResp.resp(response, CommonResult.success(totalData));
}else {
ServletResp.resp(response, CommonResult.failed());
}
}
/**
* 上传文件
* @param request
* @param response
* @throws IOException
*/
public void uploadFile(HttpServletRequest request,HttpServletResponse response) throws IOException {
SmartUpload su=new SmartUpload();
try{
su.initialize(this.getServletConfig(), request,response);
su.upload();
File file = su.getFiles().getFile(0);
String filePath =
request.getSession().getServletContext().getRealPath("/")+ "upload\\";
java.io.File path = new java.io.File(filePath);
if (!path.exists()){
System.out.println("文件夹不存在，创建文件夹");
path.mkdir();
}
String filename = file.getFileName();
String str = filename.substring(filename.lastIndexOf("."), filename.length());
System.out.println(filename);
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
String finalname = sdf.format(new Date()) + str;
System.out.println("filePath + finalname = " + filePath + finalname);
file.saveAs(filePath + finalname , File.SAVEAS_PHYSICAL);
Map<String,Object> map = new HashMap<>();
map.put("title",filename);
map.put("src", "http://localhost:8008/news/upload/"+finalname);
int result = new CmsArticleDaoImpl().uploadFile(map);
if (result == 1) {
ServletResp.resp(response, CommonResult.result(0, "文件上传成功", map));
}
}
catch(Exception e)
{
e.printStackTrace();
ServletResp.resp(response, CommonResult.failed("文件上传失败"));
}
}
/**
* （客户端）搜索功能
* @param request
* @param response
* @throws ServletException
* @throws IOException
*/
public void getSearchResult(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String title = request.getParameter("title");
List<Map<String, Object>> searchResult = new CmsArticleDaoImpl().getSearchResult(title);
if (searchResult != null){
ServletResp.resp(response, CommonResult.success(searchResult));
}else {
ServletResp.resp(response, CommonResult.failed());
}
}
}
源码获取：博客首页 "资源" 里下载！
这篇关于Java项目:在线新闻平台系统(java+jsp+jdbc+mysql)的文章就介绍到这儿，希望我们推荐的文章对大家有所帮助，也希望大家多多支持为之网！
您可能喜欢
-
springboot项目无法注册到nacos-icode9专业技术文章分享07-02
-
结对编程到底难不难？答案在这里06-26
-
《2023版Java工程师》课程升级公告06-19
-
matplotlib作图不显示3D图，怎么办？06-15
-
03-Loki 日志监控06-15
-
04-让LLM理解知识 -Prompt06-15
-
做软件测试需要懂代码吗？06-05
-
14-ShardingSphere的分布式主键实现06-05
-
为什么以及如何要进行架构设计权衡？06-03
-
全网首发第二弹！软考2024年5月《软件设计师》真题+解析+答案！（11-20题）05-31
-
全网首发！软考2024年5月《软件设计师》真题+解析+答案！（21-30题）05-31
-
【Java】百万数据excel导出功能如何实现05-30
-
我们小公司，哪像华为一样，用得上IPD（集成产品开发）？05-30
-
java excel上传--poi05-30
-
安装笔记本应用商店的pycharm，再安排pandas等模块，说是没有打包工具?05-30
栏目导航
