SSM online examination system including documents

Project name

SSM The online examination system contains documents

system description

《SSM Online examination system 》 The project adopts technology ：jsp +springmvc+spring+mybatis +css+js And other related technologies , The project contains source code 、 file 、 Supporting development software 、 Software installation tutorial 、 Project publishing tutorial, etc

The functions of online examination are ： User front desk ： User registration login 、 Check exam information 、 Take an exam 、 Check exam results 、 View history exam records 、 Review the exam papers 、 Change Password 、 Modify personal information, etc , Background management function （ Scaffold functions are not listed here ）, Subject professional management 、 Candidates Management 、 Question management 、 Examination management 、 Test paper management 、 Answer details management 、 Exam results, charts, statistics, etc , Among them, the test questions can support batch excel File import , Test papers and questions are randomly generated , Everyone's test paper is different .

Environmental needs

1. Running environment ： It is best to java jdk 1.8, We run on this platform . Other versions can, in theory .
2.IDE Environmental Science ：IDEA,Eclipse,Myeclipse Fine . recommend IDEA;
3.tomcat Environmental Science ：Tomcat 7.x,8.x,9.x All versions are available
4. Hardware environment ：windows 7/8/10 1G Above memory ; perhaps Mac OS; 
5. database ：MySql 5.7 edition ;
6. whether Maven project ： no ;

Technology stack

1. Back end ：Spring+SpringMVC+Mybatis
2. front end ：JSP+CSS+JavaScript+jQuery

Instructions

1. Use Navicat Or other tools , stay mysql Create a database with the corresponding name in , And import the sql file ;
2. Use IDEA/Eclipse/MyEclipse Import the project ,Eclipse/MyEclipse Import time , if maven Item, please select maven;
if maven project , After importing successfully, please execute maven clean;maven install command , And then run ;
3. In the project springmvc-servlet.xml Change the database configuration in the configuration file to your own configuration ;
4. Run the project , Enter... In the browser http://localhost:8080/ Sign in

Run a screenshot

  User management control layer :

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 {
    @Autowired
    private IUserService iUserService;

    /**
     *  The user login 
     * @param username
     * @param password
     * @param session
     * @return
     */
    @RequestMapping(value = "login.do",method = RequestMethod.POST)
    @ResponseBody
    public 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(" The verification code is incorrect ");
            }
        }
        ServerResponse<User> response = iUserService.login(user.getUsername(),user.getPassword());
        if(response.isSuccess()){
            session.setAttribute(Const.CURRENT_USER,response.getData());
        }
        return response;
    }

  
    
    
}

Administrator management control layer :

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);
		}
	}
}

Modify password business logic :

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," Successful operation ",null);
		}else{
			return renderData(false," operation failed ",null);
		}
	}
	}

General management module :

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 God 

	@Autowired
	private SystemProperties systemProperties;

	/**
	 *  Get the profile content 
	 */
	public String getConfig(String key) {
		return systemProperties.getProperties(key);
	}

	/**
	 *  Return server address  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 + "/";
		}
	}

	/***
	 *  Get current website route  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;
	}



	/**
	 *  initialization HTTP head .
	 * 
	 * @return HttpHeaders
	 */
	public HttpHeaders initHttpHeaders() {
		HttpHeaders headers = new HttpHeaders();
		MediaType mediaType = new MediaType("text", "html",
				Charset.forName("utf-8"));
		headers.setContentType(mediaType);
		return headers;
	}

	/**
	 *  return   Information data 
	 * 
	 * @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;
	}

	/**
	 *  return obj data 
	 * 
	 * @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;
	}


	/***
	 *  obtain IP（ If it's a multi-level agent , You get a string of IP value ）
	 */
	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;
	}

	/**
	 *  Internationalization obtains language content 
	 * 
	 * @param key
	 *             Language 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;
	}
}

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