软件工程概论课堂测试

1 设计思想

首先定义一个类来存放这三个课程信息。然后通过连接数据库，将用户输入的数据添加进去。这是初步阶段。完成对数据库的添加之后。之后，要判断用户输入的内容是否符合要求。加入一些判断。

2 源代码

package com.kao.msg.dao;

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

import com.kao.msg.Util.DBUtil;
import com.kao.msg.model.Kecheng;

public class Xinxi implements Ixinxi {
    public void add(Kecheng kecheng){
        Connection connection = DBUtil.getConnection();
        String sql ;
        PreparedStatement preparedStatement = null;
        ResultSet resultSet = null;
        sql = "insert into t_add(name,teacher,address) values (?,?,?)";
        try {
            preparedStatement = connection.prepareStatement(sql);
            preparedStatement.setString(1, kecheng.getName());
            preparedStatement.setString(2,kecheng.getTeacher());
            preparedStatement.setString(3, kecheng.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);
        }
        
        
        
        
    }

}

package com.kao.msg.model;

public class Kecheng {
    String teacher;
    String name;    
    String address;
    public String getTeacher() {
        return teacher;
    }
    public void setTeacher(String teacher) {
        this.teacher = teacher;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getAddress() {
        return address;
    }
    public void setAddress(String address) {
        this.address = address;
    }
    

}

package com.kao.msg.Util;

import java.sql.*;

public class DBUtil {
    public  static  Connection getConnection(){
        try {
            Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver").newInstance();
        } catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        String user = "sa";
        String password = "20163433";
        String url = "jdbc:sqlserver://127.0.0.1:1433;DatabaseName=kaoshi";
        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;
        
    }
    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();
        }
    }
    


}

package com.kao.msg.Util;

public class JisuanException extends RuntimeException{

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

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

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

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

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

}

<%@ 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>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%if(request.getAttribute("error1")!=null){
    out.print("<script language='javaScript'>alert('课程不能为空');</script>");
}
if(request.getAttribute("error2")!=null){
    out.print("<script language='javaScript'>alert('教师不能为空');</script>");
}
if(request.getAttribute("error3")!=null){
    out.print("<script language='javaScript'>alert('教室不能为空');</script>");
}
if(request.getAttribute("error4")!=null){
    out.print("<script language='javaScript'>alert('教师格式错误');</script>");
}
if(request.getAttribute("error5")!=null){
    out.print("<script language='javaScript'>alert('教室格式错误');</script>");
}
%>
<form action="add.jsp" method="get">
<table align="center" border="1" width="500">
            <tr>
                <td>课程名称 : </td>
                <td>
                    <input type="text" name="name" />
                </td>
            </tr>
            <tr>
                <td>任课教师:</td>
                <td>
                    <input type="text" name="teacher" />
                </td>
            </tr>
            <tr>
                <td>上课地点:</td>
                <td>
                    <input type="text" name="address" />
                </td>
            </tr>

            <tr align="center">
                <td colspan="2">
                    <input type="submit" value="提交" /><br>
                </td>
            </tr>
        </table>
</body>
</html>

<%@page import="com.kao.msg.model.Kecheng"%>
<%@page import="com.kao.msg.dao.Xinxi"%>
<%@ 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>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
    //接收客户端传递过来的参数
    String name = request.getParameter("name");
    String teacher = request.getParameter("teacher");
    String address = request.getParameter("address");
    Kecheng kecheng=new Kecheng();
    if(name == null || "".equals(name.trim())){
        request.setAttribute("error1", "课程不能为空");
    

%>
    <jsp:forward page="addinput.jsp"></jsp:forward>
<%
    }
    if(teacher == null || "".equals(teacher.trim())){
        request.setAttribute("error2", "用户名不能为空");
    

%>
    <jsp:forward page="addinput.jsp"></jsp:forward>
<%
    }
    if(address == null || "".equals(address.trim())){
        request.setAttribute("error3", "用户名不能为空");
    

%>
    <jsp:forward page="addinput.jsp"></jsp:forward>
<%
    }
    if(teacher.equals("王建民")||teacher.equals("刘力嘉")||teacher.equals("刘丹")||teacher.equals("王辉")||teacher.equals("杨子光")){
%>
        <h1>教师保存成功!!<h1><br>
<%    
    }
    else{
        request.setAttribute("error4", "无此教师");
%>
        <jsp:forward page="addinput.jsp"></jsp:forward>


<%
    }
    
        if(address.startsWith("一教")||address.startsWith("二教")||address.startsWith("三教")||address.startsWith("基教")){
            kecheng.setName(name);
            kecheng.setTeacher(teacher);
            kecheng.setAddress(address);
            Xinxi xinxi=new Xinxi();
            xinxi.add(kecheng);
    
    
%>
<h1>教室保存成功!!<h1><br>


<%
        }
        else{
            request.setAttribute("error5", "教室格式错误");
%>
            <jsp:forward page="addinput.jsp"></jsp:forward>
<% 
        }

%>
</body>
</html>

3 运行结果截图

项目计划总计

日期 任务	听课	编写程序	日总结
周二
上午	50	50
下午		30	130

时间记录日志

日期	开始时间	中断时间	净时间	活动	备注
11/28
上午	8:00	8:50	50	听课	Psp讲解
	9:00	9:50	50	编程序	课堂测试
下午	1:50	2:15	25	编程序	完善课堂测试内容

缺陷记录日志

日期	编号	类型	引入阶段	排除阶段	修复时间	修复缺陷
11/28	1				3min
	描述：忘记导入数据库的jar包，导致报错。
	2				2min
	描述：数据库存入的内容为空。原因是在赋值阶段应该使用set方法，误用get方法导致赋值失败，将空值存入了数据库
	3				25min
	描述：用户输入界面不能输入空值，而且输入不符合要求的信息所提示的错误不明确。然后我在jsp中添加了一些if判断，使程序更加健壮。