练习-----新闻管理
题目要求如下：
做法：
【1】建数据库
【2】封装类文件--------DBDA.class.php
1 <?php
2 class DBDA
3 {
4 public $fuwuqi="localhost"; //服务器地址
5 public $yonghuming="root";//用户名
6 public $mima="";//密码
7
8 public $dbconnect;//连接对象
9
10 //操作数据库的方法
11
12 //$sql代表需要执行的SQL语句
13 //$type代表SQL语句的类型，1代表查询，2代表增删改
14 //$shujukuming代表数据库的名称
15 //如果是查询，返回二维数组
16 //如果是增删改，返回true或false
17
18 function Query($sql,$type=1,$shujukuming="newssystem")
19 {
20 //造连接对象
21 $this->dbconnect = new MySQLi($this->fuwuqi,$this->yonghuming,$this->mima,$shujukuming);
22
23 //判断是否出错
24 if(!mysqli_connect_error())
25 {
26 //如果连接成功,执行SQL语句
27 $result = $this->dbconnect->query($sql);
28
29 //根据语句类型判断
30 if($type==1)
31 {
32 //如果是查询语句,返回二维数组
33 return $result->fetch_all();
34 }
35 else
36 {
37 //如果是其他语句，返回true或false
38 return $result;
39 }
40
41 }
42 else
43 {
44 return"连接失败";
45
46 }
47
48
49 }
50
51 }
52
53
54
55
56 ?>
【3】发布新闻页面---------fabuxinwen.php
1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 5 <title>无标题文档</title> 6 </head> 7 <body> 8 <center><h1>发布新闻</h1> 9 10 <form action="fabuxinwenchuli.php" method="post"> 11 12 <div>标题：<input type="text" name="title" style="width:400px"/></div><br /> 13 14 <div>作者：<input type="text" name="Author" style="width:200px"/></div><br /> 15 16 <div>来源：<input type="text" name="source" style="width:400px"/></div><br /> 17 18 <div>内容：<textarea name="content" cols="50" rows="4" ></textarea></div><br /> 19 <br /> 20 21 <div><input type="submit" name="tijiao" value="提交" /> 22 <a href="chakan.php"><input type="button" value="查看"/></a></div> 23 </form> 24 25 </center> 26 </body> 27 </html>
【4】发布新闻的处理页面：----------fabuxinwenchuli.php
1 <?php
2
3 $title = $_POST["title"];
4 $Author = $_POST["Author"];
5 $source = $_POST["source"];
6 $content = $_POST["content"];
7 $shijian= date("Y-m-d H:i:s");
8
9 include("DBDA.class.php");
10
11 $dx=new DBDA();
12
13 $sql="insert into news values(‘‘,‘{$title}‘,‘{$Author}‘,‘{$source}‘,‘{$content}‘,‘{$shijian}‘)";
14
15
16 $r = $dx->Query($sql,0);
17
18 if($r)
19 {
20 header("location:fabuxinwen.php");
21 }
22 else
23 {
24 echo "修改失败！";
25 }
26
27
28
29
30 ?>
【4】查看新闻页面----------chakan.php
1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
2 <html xmlns="http://www.w3.org/1999/xhtml">
3 <head>
4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
5 <title>查看新闻</title>
6 <!--点击”查看“按钮，显示‘查看新闻’页面-->
7 </head>
8 <body>
9 <table width="1000px" cellpadding="1" border="1"ellspacing="1">
10 <tr>
11 <td>编号</td>
12 <td>标题</td>
13 <td>作者</td>
14 <td>来源</td>
15 <td>内容</td>
16 <td>时间</td>
17 <td>修改</td>
18 <td>删除</td>
19 </tr>
20
21 <?php
22 include("DBDA.class.php");
23
24 $dx=new DBDA();
25
26 $sql="select * from news";
27 $r = $dx->Query($sql,1);
28 //$attr=$result->fetch_all();
29 foreach($r as $v)
30 {
31 echo "<tr>
32 <td>{$v[0]}</td>
33 <td>{$v[1]}</td>
34 <td>{$v[2]}</td>
35 <td>{$v[3]}</td>
36 <td>{$v[4]}</td>
37 <td>{$v[5]}</td>
38 <td><a href=‘xiugai.php?newsid={$v[0]}‘>修改</a></td>
39 <td><a href=‘shanchu.php?newsid={$v[0]}‘}>删除</a></td>
40 </tr>";
41
42
43 }
44
45 ?>
46 </table>
47 </body>
48 </html>
【5】查看新闻的处理页面----------chakanchuli.php
1 <?php
2
3 $newsid = $_POST["newsid"];
4 $title = $_POST["title"];
5 $author = $_POST["author"];
6 $source = $_POST["source"];
7 $content = $_POST["content"];
8 $time = $_POST["shijian"];
9
10 include("DBDA.class.php");
11
12 $dx=new DBDA();
13
14 $sql = "update news set title = ‘{$title}‘,author = ‘{$author}‘,source = ‘{$source}‘,content = ‘{$content}‘,time= ‘{$time}‘ where newsid = ‘{$newsid}‘";
15
16 $result = $dx->query($sql);
17 if($result)
18 {
19 header("location:chakan.php");
20 }
21 else
22 {
23 echo "修改失败";
24 }
25 ?>
【6】删除处理页面--------shanchu.php
1 <?php
2 $newsid = $_GET["newsid"];
3 var_dump($newsid);
4
5 include("DBDA.class.php");
6
7 $dx=new DBDA();
8
9 $sql = "delete from news where newsid=‘{$newsid}‘";
10 $r = $dx->Query($sql,2);
11 if($r)
12 {
13 header("location:chakan.php");
14 }
15 else
16 {
17 echo "删除失败！";
18 }
【7】修改页面---------xiugai.php
1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
2 <html xmlns="http://www.w3.org/1999/xhtml">
3 <head>
4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
5 <title>修改页面</title>
6 </head>
7 <body>
8 <!--newsid--><center>
9 <h1>修改页面</h1>
10 <?php
11
12 $newsid = $_GET["newsid"];
13
14 include("DBDA.class.php");
15
16 $dx=new DBDA();
17
18 $sql="select * from news where newsid=‘{$newsid}‘";
19 $r = $dx->Query($sql);
20
21 ?>
22
23
24 <form action="xiugaichuli.php" method="post">
25 <input type="hidden" name="newsid" value="<?php echo $r[0][0]; ?>"/>
26
27 <div>标题:<input type="text" name="title" value="<?php echo $r[0][1];?>"/></div>
28 <div>作者:<input type="text" name="author" value="<?php echo $r[0][2];?>"/></div>
29 <div>来源:<input type="text" name="source" value="<?php echo $r[0][3];?>"/></div>
30 <div>内容:<textarea name="content" cols="100" rows="10"><?php echo $r[0][4];?></textarea></div>
31
32 <div><input type="submit" value="修改"/></div>
33 <input type="hidden" name="newsid" value="<?php echo $newsid; ?>" />
34
35 </form>
36 <!--<a href="chakan.php"><input type="button" value="查看"></a>-->
37 </center>
38 </body>
39 </html>
【8】修改的处理页面---------xiugaichuli.php
1 <?php
2
3 $newsid = $_POST["newsid"];
4 $title = $_POST["title"];
5 $Author = $_POST["author"];
6 $source = $_POST["source"];
7 $content = $_POST["content"];
8
9
10 include("DBDA.class.php");
11
12 $dx=new DBDA();
13
14 $sql="update news set title=‘{$title}‘,author = ‘{$Author}‘,source =‘{$source}‘,content=‘{$content}‘ where newsid = ‘{$newsid}‘";
15 echo $sql;
16 $r = $dx->Query($sql,0);
17 var_dump($r);
18 if($r)
19 {
20 header("location:chakan.php");
21 }
22 else
23 {
24 echo "修改失败！";
25 }
26
27
28
29
30 ?>
时间： 2024-09-29 15:51:57