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="400px"/></div><br /> 13 14 <div>作者：<input type="text" name="Author" style="200px"/></div><br /> 15 16 <div>来源：<input type="text" name="source" style="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 ?>
