软件工程概论课堂测试一

设计思想：创建一个User类，具有三个String类型变量，用来存放需要的属性值。创建一个UserDaoimpl类，用来写向数据库添加数据的函数，添加数据时只需调用此函数即可。创建一个UserException类，用来抛出异常信息。ValidateUtil用来对输入时未输入的数据进行提示。addInput用来显示首界面，add界面用来接收客户端传递过来的参数，并对参数值进行判断，符合条件调用添加函数将数据添加到数据库，不符合条件报出添加错误信息。

源代码：

User

package com.jaovo.msg.model;

public class User {
    private String coursename;
    private String teacher;
    private String address;
    public String getCoursename() {
        return coursename;
    }
    public void setCoursename(String coursename) {
        this.coursename = coursename;
    }
    public String getTeacher() {
        return teacher;
    }
    public void setTeacher(String teacher) {
        this.teacher = teacher;
    }
    public String getAddress() {
        return address;
    }
    public void setAddress(String address) {
        this.address = address;
    }
    

}

IUserDao

package com.jaovo.msg.dao;

import com.jaovo.msg.model.User;

public interface IUserDao {
    public void add(User user);

}

UserDaoimpl

package com.jaovo.msg.dao;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

import com.jaovo.msg.Util.DBUtil;
import com.jaovo.msg.Util.UserException;
import com.jaovo.msg.model.User;

public class UserDaoimpl implements IUserDao{
    @Override
    public void add(User user) {
        //获得链接对象
        Connection connection = DBUtil.getConnection();
        //准备sql语句
        String sql = "select count(*) from t_user2 where coursename = ?";
        //创建语句传输对象
        PreparedStatement preparedStatement = null;
        ResultSet resultSet = null;
        try {
            preparedStatement = connection.prepareStatement(sql);
            preparedStatement.setString(1, user.getCoursename());
            //接收结果集
            resultSet = preparedStatement.executeQuery();
            //遍历结果集
            /*while(resultSet.next()) {
                if (resultSet.getInt(1) > 0) {
                    throw new UserException("用户已存在") ;
                }
            }*/
            
            sql = "insert into t_user2(coursename,teacher,address) value (?,?,?)";
            preparedStatement = connection.prepareStatement(sql);
            preparedStatement.setString(1, user.getCoursename());
            preparedStatement.setString(2, user.getTeacher());
            preparedStatement.setString(3, user.getAddress());
            preparedStatement.executeUpdate();
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }finally {
            //关闭资源
            DBUtil.close(resultSet);
            DBUtil.close(preparedStatement);
            DBUtil.close(connection);
        }
        
    }

}

DBUtil

package com.jaovo.msg.Util;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class DBUtil {
    
    public  static  Connection getConnection() {
        try {
            //1 加载驱动
            Class.forName("com.mysql.jdbc.Driver").newInstance();
        } catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        String user = "root";
        String password = "root";
        String url = "jdbc:mysql://localhost:3306/jaovo_msg";
        Connection connection = null;
        try {
            //2 创建链接对象connection
             connection = DriverManager.getConnection(url,user,password);
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return connection;
    }
    
    //关闭资源的方法
    public static void close(Connection connection ) {
        try {
            if (connection != null) {
                connection.close();
            }
            
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    public static void close(PreparedStatement preparedStatement ) {
        try {
            if (preparedStatement != null) {
                preparedStatement.close();
            }
            
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    public static void close(ResultSet resultSet ) {
        try {
            if (resultSet != null) {
                resultSet.close();
            }
            
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    
}

UserException

package com.jaovo.msg.Util;

public class UserException extends RuntimeException{

    public UserException() {
        super();
        // TODO Auto-generated constructor stub
    }

    public UserException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
        super(message, cause, enableSuppression, writableStackTrace);
        // TODO Auto-generated constructor stub
    }

    public UserException(String message, Throwable cause) {
        super(message, cause);
        // TODO Auto-generated constructor stub
    }

    public UserException(String message) {
        super(message);
        // TODO Auto-generated constructor stub
    }

    public UserException(Throwable cause) {
        super(cause);
        // TODO Auto-generated constructor stub
    }
    
}

ValidateUtil

package com.jaovo.msg.Util;

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

public class ValidateUtil {
    public static  boolean validateNull(HttpServletRequest request,String[] fileds) {
        boolean validate = true;
        //map对象用来装载不同的错误信息
        Map<String,String> errorMsg = new  HashMap();
        for(String filed :fileds) {
            String value = request.getParameter(filed);
            if (value == null || "".equals(value.trim())) {
                validate = false;
                errorMsg.put(filed, filed+"不能为空");
            }
            if (!validate) {
                request.setAttribute("errormsg", errorMsg);
            }
            
            
        }
        
        return validate;
    }
    public static String showError(HttpServletRequest request , String filed) {
        Map<String, String> errorMsg = (Map<String,String>)request.getAttribute("errormsg");
        if (errorMsg == null) {
            return "";
        }
        String msg = errorMsg.get(filed);
        if (msg == null) {
            return "";
        }
        return msg;
    }
    
}

add.jsp

<%@page import="com.jaovo.msg.Util.ValidateUtil"%>
<%@page import="com.jaovo.msg.Util.UserException"%>
<%@page import="com.jaovo.msg.dao.UserDaoimpl"%>
<%@page import="com.jaovo.msg.model.User"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<%
    //接收客户端传递过来的参数
    String  coursename= request.getParameter("coursename");
    String  teacher= request.getParameter("teacher");
    String  address= request.getParameter("address");
    boolean validate = ValidateUtil.validateNull(request, new String[]{"coursename","teacher","address"});
    if(!validate){
%>
    <jsp:forward page="addInput.jsp"></jsp:forward>
<%
    }
    if(teacher.equals("王建民")||teacher.equals("刘立嘉")||teacher.equals("刘丹")||teacher.equals("王辉")||teacher.equals("杨子光"))
    {
        if(address.startsWith("一教")||address.startsWith("二教")||address.startsWith("基教")||address.startsWith("三教"))
        {
            User user = new User();
            user.setCoursename(coursename);
            user.setTeacher(teacher);
            user.setAddress(address);
            UserDaoimpl userDao = new UserDaoimpl();
            try{
            
            userDao.add(user);
            out.println("添加成功");

            }catch(UserException e){
    %>
        <h2 style="color:red ; font-size:50px">发生错误 : <%=e.getMessage() %></h2>
    <%
            }
        }
        else
        {
            out.println("添加失败,没有该教学楼");
        }
    }
    
    else
    {
        out.println("添加失败,没有该教师");
    }
    %>
</html>

addInput.jsp

 <%@page import="com.jaovo.msg.Util.ValidateUtil"%>
<%@page import="java.util.Map"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <title>增加课程信息页面</title>
</head>
<body>
<%--     <%Map<String,String> errorMsg = (Map<String,String>)request.getAttribute("errormsg"); --%>
<%--     %> --%>
    <form action="add.jsp" method="get">
        <table align="center" >
            <tr>
                <td>课程名称 : </td>
                <td>
                    <input type="text" name="coursename" />
                    <%=ValidateUtil.showError(request, "coursename")%>
                </td>
            </tr>
                <tr>
                <td>任课教师:</td>
                <td>
                    <input type="text" name="teacher" />
                    <%=ValidateUtil.showError(request, "teacher")%>
                </td>
            </tr>
            <tr>
                <td>上课地点:</td>
                <td>
                    <input type="text" name="address" />
                <%=ValidateUtil.showError(request, "address")%>
                </td>
            </tr>
            <tr align="center">
                <td >
                    <input type="submit" value="保存" />
                </td>
            </tr>
        </table>
    </form>
</body>
</html>

运行成果截图：

缺陷记录日志

学生：孟庆淋

日期：2017.11.28

教员：王建民

程序号：1

日期 编号 类型 引入阶段 排除阶段 修复时间 修复缺陷
2017.11.28 1 20 编码 编译 1min 书写问题
描述：在进行判断时候将teacher变量写成了coursename变量

时间记录日志

学生：孟庆淋                                    教师：王建民

日期：2017.11.28

日期 开始时间 结束时间 中断时间 净时间 活动 备注
11.28

8：00

 8：50   50 听课 软件工程概论
  9：00 9：45   45 编写程序 课堂测试一
  17：00 17：35 5 30 编写博客园  

 

项目计划总结

学生：孟庆淋

日期：2017.11.28

教员：王建民

程序号：1

PSP2.1 Personal Software Process Stages Time(%)（/minute）
Planning 计划 2
Estimate 估计这个任务需呀多少时间 50
Analysis 需求分析 2
Coding Standrd 代码规范 4
Design 具体设计 5
Coding 具体编码 40
Test 测试 1
Resporting 报告 50

 

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原文地址：https://www.cnblogs.com/mqlblog/p/7911291.html