Java兼职平台系统如何实现

本篇内容介绍了“Java兼职平台系统如何实现”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！

一、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：

HTML +Springboot+ SpringMVC + MyBatis + ThymeLeaf + JavaScript + JQuery + Ajax + maven等等.

二、效果图

三、核心代码

登录控制层

    public class LoginController extends HttpServlet {    @Override    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {        JSONObject jsonObject = new JSONObject();        String username = req.getParameter("username");        String password = req.getParameter("password");        resp.setCharacterEncoding("UTF-8");         HttpSession session = req.getSession();        if (StringUtils.isBlank(username) || StringUtils.isBlank(password)) {            jsonObject.put("code", 2000);            jsonObject.put("flag", "fail");            jsonObject.put("user", null);            jsonObject.put("msg", "usernameOrPasswordIsBank");//用户名密码不能为空            resp.getWriter().print(jsonObject);            return;        }        password = MyMD5Util.encrypt(password);        System.out.println(password);        BusinessUserVO businessUserVO = new BusinessUserVO();        businessUserVO.setUsername(username);        businessUserVO.setPassword(password);        StudentUserVO studentUserVO = new StudentUserVO();        studentUserVO.setUsername(username);        studentUserVO.setPassword(password);         String flag1 = null;        String flag2 = null;        try {            flag1 = BusinessUserDao.selectUsername(businessUserVO);            if ("ok".equals(flag1)) {//企业用户名存在                BusinessUserDTO businessUserDTO = BusinessUserDao.select(businessUserVO);                if (businessUserDTO != null) {                    jsonObject.put("code", 2000);                    jsonObject.put("flag", "success");//登录成功                    jsonObject.put("user", businessUserDTO);                    jsonObject.put("msg", "login_success");                    session.setAttribute("businessUser",businessUserDTO);                    resp.getWriter().print(jsonObject);                    return;                } else {                    jsonObject.put("code", 2000);                    jsonObject.put("flag", "fail");//登录失败                    jsonObject.put("user", null);                    jsonObject.put("msg", "passwordError");//密码错误                    resp.getWriter().print(jsonObject);                    return;                }            }            flag2 = StudentUserDao.selectUsername(studentUserVO);            if ("ok".equals(flag2)) {//学生用户名存在                StudentUser studentUser = StudentUserDao.select(studentUserVO);                if (studentUser != null) {                    jsonObject.put("code", 2000);                    jsonObject.put("flag", "success");//登录成功                    jsonObject.put("user", studentUser);                    jsonObject.put("msg", "login_success");                    session.setAttribute("studentUser",studentUser);                    resp.getWriter().print(jsonObject);                    return;                } else {                    jsonObject.put("code", 2000);                    jsonObject.put("flag", "fail");//登录失败                    jsonObject.put("user", null);                    jsonObject.put("msg", "passwordError");//密码错误                    resp.getWriter().print(jsonObject);                    return;                }             }            //用户名不存在，前往注册            jsonObject.put("code", 2000);            jsonObject.put("flag", "fail");//登录失败            jsonObject.put("user", null);            jsonObject.put("msg", "usernameIsNotExist");//密码错误            resp.getWriter().print(jsonObject);            return;         } catch (SQLException throwables) {            throwables.printStackTrace();        }        return;     }     @Override    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {        doGet(req, resp);    }}

管理员登录控制层

 public class AdminLoginController extends HttpServlet {    @SneakyThrows    @Override    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {        String username = req.getParameter("username");        String password = req.getParameter("password");        password = MyMD5Util.encrypt(password);        JSONObject jsonObject = new JSONObject();        HttpSession session = req.getSession();        Admin admin = new Admin(username, password);        Admin adminFromDB = AdminDao.findByUsernamePassword(admin);        if (adminFromDB!=null){            jsonObject.put("code",2000);            jsonObject.put("msg","login_success");            jsonObject.put("admin",adminFromDB.getUsername());            jsonObject.put("flag","success");            resp.getWriter().print(jsonObject);            session.setAttribute("admin",adminFromDB);            return;        }else {            jsonObject.put("code",2000);            jsonObject.put("msg","no admin");            jsonObject.put("admin",null);            jsonObject.put("flag","fail");            resp.getWriter().print(jsonObject);            return;        }     }     @Override    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {        this.doGet(req, resp);    }}

提交个人简介控制层

 public class SubmitResumeController extends HttpServlet {    @SneakyThrows    @Override    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {        JSONObject jsonObject = new JSONObject();        DiskFileItemFactory factory = new DiskFileItemFactory();        ServletFileUpload upload = new ServletFileUpload(factory);        req.setCharacterEncoding("UTF-8");        upload.setHeaderEncoding("UTF-8");        List<FileItem> items = upload.parseRequest(req);        StringBuffer sb = new StringBuffer();        String resumeFile = null;        for (FileItem item : items) {            String name = item.getFieldName();            InputStream inputStream = item.getInputStream();            if (!name.equals("resumeFile")){                String string = item.getString();                string = new String(string.getBytes("ISO8859_1"), StandardCharsets.UTF_8);                sb.append(string+"&&");            }else {                String[] split = sb.toString().split("&&");                String studentName = split[0];                String studentUsername = split[1];                String recruitInfoId = split[2];                String path=req.getServletContext().getRealPath("/");                String fieldName = studentName+"_"+studentUsername+"_"+recruitInfoId+"_"+item.getName();                String filePath = path+fieldName;                resumeFile = fieldName;                File file = new File(filePath);                BufferedInputStream bufferedInputStream = new BufferedInputStream(inputStream);                FileOutputStream fileOutputStream = new FileOutputStream(file);                int line;                while ((line = bufferedInputStream.read())!=-1){                    fileOutputStream.write(line);                }                fileOutputStream.flush();                fileOutputStream.close();                bufferedInputStream.close();            }        }        String[] split = sb.toString().split("&&");        String studentName = split[0];        String studentUsername = split[1];        String recruitInfoId = split[2];        String applyPosition = split[3];        String phoneNum = split[4];        String email = split[5];        Resume resume = new Resume(studentUsername, Integer.parseInt(recruitInfoId), studentName, applyPosition, phoneNum, email, resumeFile);        int insert = ResumeDao.insert(resume);        if (insert == 1){            jsonObject.put("code",2000);            jsonObject.put("msg","add success");            jsonObject.put("flag","success");            jsonObject.put("data",resume);            resp.getWriter().print(jsonObject);            return;        }else {            jsonObject.put("code",2000);            jsonObject.put("msg","add fail");            jsonObject.put("flag","fail");            jsonObject.put("data",null);            resp.getWriter().print(jsonObject);        }      }     @Override    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {        this.doGet(req, resp);    }}

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