纯手写 简单留言板小实例 php + mysql + angular

数据库  weibo 

DROP TABLE IF EXISTS `msgs`;
CREATE TABLE `msgs` (
  `Id` int(11) NOT NULL AUTO_INCREMENT,
  `userid` int(11) unsigned DEFAULT NULL,
  `msg` text,
  `createtime` int(10) unsigned DEFAULT NULL,
  `loves` int(11) unsigned DEFAULT '0',
  `hates` int(11) unsigned DEFAULT '0',
  `isdel` bit(1) DEFAULT b'0',
  PRIMARY KEY (`Id`)
) ENGINE=MyISAM AUTO_INCREMENT=6 DEFAULT CHARSET=utf8;


INSERT INTO `msgs` VALUES (10,1,'测试、。',1534815070,0,0,b'0'),(32,1,'用户：ken 等级：5',1534839205,0,0,b'0'),(33,1,'用户：ken 等级：52ml',1534839236,0,0,b'0');


DROP TABLE IF EXISTS `users`;
CREATE TABLE `users` (
  `Id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(20) NOT NULL DEFAULT '',
  `pwd` varchar(32) DEFAULT NULL,
  `age` tinyint(3) unsigned DEFAULT NULL,
  `level` tinyint(3) unsigned DEFAULT NULL,
  `birthday` int(10) unsigned DEFAULT '1500000000',
  `flows` int(11) unsigned DEFAULT '0',
  `avartar` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`Id`)
) ENGINE=MyISAM AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;


INSERT INTO `users` VALUES (1,'ken','111',25,5,1500000000,1010,NULL),(2,'john','222',21,1,1500000000,0,NULL);

后端 api.php 

1,"state"=>"success","user"=>$_SESSION['user']));
				}
				else{
				$stmt = $mysqli->prepare("SELECT * FROM users WHERE `name`= ? and pwd = ?");
				$stmt->bind_param('ss', $username,$pwd); 
				$username=$_REQUEST['username'];
				$pwd=$_REQUEST['pwd']; 
				$stmt->execute();
				$res = $stmt->get_result();
				$row = $res->fetch_assoc();
				
				if($row){
					$_SESSION['user']=$row;
					echo json_encode(array("code"=>1,"state"=>"success","user"=>$row));
				}
				else{
					echo json_encode(array("code"=>0,"state"=>"fail","username"=>$username,"pwd"=>$pwd));
				}
				mysqli_free_result($res);//释放资源
				}
			break;
			
			case "addmsg"://发送信息
				if(isset($_SESSION['user']))
				{
					$u=$_SESSION['user'];
					$a=$u['Id'];
					if(isset($_REQUEST['msg']))
					{ 
						$b=$_REQUEST['msg'];
						$c=time();
						
						$stmt = $mysqli->prepare("insert into msgs(userid,msg,createtime) value(?,?,?)");				
						$stmt->bind_param('isi',$a,$b,$c);					
						$stmt->execute();
						$msgid=mysqli_insert_id($mysqli);
						echo json_encode(array("code"=>1,"state"=>"success","msgid"=>$msgid,"createtime"=>$c));
					}
					else{
						echo json_encode(array("code"=>0,"state"=>"fail"));
					}
				}
				else{
					echo json_encode(array("code"=>0,"state"=>"fail","msg"=>"you have no right to add msg!"));
				}
				
			break;
			case "chklogin": //检查用户登录状态 code: 1已登录 , 0未登录 
				if(isset($_SESSION['user']))
				{
					echo json_encode(array("code"=>1,"msg"=>"success","user"=>$_SESSION['user']));
				}
				else{
					echo json_encode(array("code"=>0,"msg"=>"not logined"));
				}
			break;
			case "getmsgs"://读取信息 p 当前页码
				$pagesize=10;
				$page=1;				
				if(isset($_REQUEST['p']))
					$page=intval($_REQUEST['p']);
				$offset=($page-1)*$pagesize;
				$sql="SELECT * FROM msgs ORDER BY id desc limit ".$offset.",".$pagesize; 
				$result=mysqli_query($mysqli,$sql); 

				// 获取数据 
				$rows=mysqli_fetch_all($result,MYSQLI_ASSOC); 
				
				$result2=mysqli_query($mysqli,"select count(*) as cc from msgs ");
				$totalrecord=mysqli_fetch_assoc($result2);
				
				if($rows)
					echo json_encode(array("code"=>1,"state"=>"success","msgs"=>$rows,"totalrecord"=>intval($totalrecord["cc"])));
				else
					echo json_encode(array("code"=>0,"state"=>"fail"));

				// 释放结果集 
				mysqli_free_result($result); 
				
			break;
			case "op":  //常用操作 op :1赞，2踩 ，3删除信息 ; msgid:信息编号 ;  返回 json : code (0失败 ，1成功) ，msg 操作结果说明 
				$op=0;
				$msgid=0;
				if(isset($_REQUEST['op']))  
					$op=intval($_REQUEST['op']); 
				if(isset($_REQUEST['msgid']))
					$msgid=intval($_REQUEST['msgid']);
				if($op>0&&$msgid>0)
				{
					$sql='';
					switch($op)
					{
						case 1:$sql="update msgs set loves=loves+1 where id=".$msgid;break;
						case 2:$sql="update msgs set hates=hates+1 where id=".$msgid;break;
						case 3:
							if(isset($_SESSION['user']))
							{
								$u=$_SESSION['user'];
								$sql="delete from msgs where id=".$msgid." and userid=".$u['Id'];
							}
							else{
								echo json_encode(array("code"=>0,"state"=>"fail","msg"=>"you have no right to del msg!"));								
							}
							break;
					}
					if(!empty($sql))
					{
						$result=mysqli_query($mysqli,$sql); 
						if($result)
							echo json_encode(array("code"=>1,"state"=>"success","msg"=>"op success!"));	
						else
							echo json_encode(array("code"=>1,"state"=>"success","msg"=>"nothing changed!"));	
					}
					else{
						echo json_encode(array("code"=>0,"state"=>"fail","msg"=>"unknow op parameter"));
					}
				}
				else{
					echo json_encode(array("code"=>0,"state"=>"fail","msg"=>"unknow op parameter"));
				}
				
			break;
			default:
				echo '{"msg":"no such action found!"}';
		}
	}
	else{
		echo '{"msg":"no action argument!"}';
	} 
	
	
	?>
	

前台  weibo.html

  
    
     
    
	
    
  
  
		

			加载中。。。
		
		

			
			
						
		
		

			

				
				
				

				

					用户：{{user.name}}  等级：{{user.level}} 
					
				
			
			

				

					{{item}}
				
				

					

						
{{item.msg}}
						

						{{item.createtime*1000|date:"y-MM-dd HH:mm:ss"}} {{item.loves}}{{item.hates}} 
						
					
				
				

					{{item}}