Mysql学习微信公众平台开发 数据库操作

CREATE TABLE IF NOT EXISTS `test_mysql`
 ( `id` int(11) NOT NULL AUTO_INCREMENT,
 `from_user` varchar(40) DEFAULT NULL, 
`account` varchar(40) DEFAULT NULL, 
`password` varchar(40) DEFAULT NULL,
 `update_time` datetime DEFAULT NULL, PRIMARY KEY (`id`), UNIQUE KEY 
`from_user` (`from_user`));

<!--?php
/**
 * MySQL示例,通过该示例可熟悉BAE平台MySQL的使用(CRUD)
 */
require_once("../configure.php");
  /*替换为你自己的数据库名(可从管理中心查看到)*/
  $dbname = MYSQLNAME;
   
  /*从环境变量里取出数据库连接需要的参数*/
  $host = getenv('HTTP_BAE_ENV_ADDR_SQL_IP');
  $port = getenv('HTTP_BAE_ENV_ADDR_SQL_PORT');
  $user = getenv('HTTP_BAE_ENV_AK');
  $pwd = getenv('HTTP_BAE_ENV_SK');
   
  /*接着调用mysql_connect()连接服务器*/
  $link = @mysql_connect("{$host}:{$port}",$user,$pwd,true);
  if(!$link) {
   die("Connect Server Failed: " . mysql_error());
  }
  /*连接成功后立即调用mysql_select_db()选中需要连接的数据库*/
  if(!mysql_select_db($dbname,$link)) {
   die("Select Database Failed: " . mysql_error($link));
  }
  /*至此连接已完全建立,就可对当前数据库进行相应的操作了*/
  /*!!!注意,无法再通过本次连接调用mysql_select_db来切换到其它数据库了!!!*/
  /* 需要再连接其它数据库,请再使用mysql_connect+mysql_select_db启动另一个连接*/
   
  /**
  * 接下来就可以使用其它标准php mysql函数操作进行数据库操作
  */
   
  //创建一个数据库表
  $sql = "create table if not exists test_mysql(
      id int primary key auto_increment,
      no int, 
      name varchar(1024),
      key idx_no(no))";
  $ret = mysql_query($sql, $link);
  if ($ret === false) {
    die("Create Table Failed: " . mysql_error($link));
  } else {
    echo "Create Table Succeed<br /-->";
  }
   
  //插入数据
  $sql = "insert into test_mysql(no, name) values(2007,'this is a test message'),
      (2008,'this is another test message'),
      (2009,'xxxxxxxxxxxxxx')";
  $ret = mysql_query($sql, $link);
  if ($ret === false) {
    die("Insert Failed: " . mysql_error($link));
  } else {
    echo "Insert Succeed
";
  }
   
  //删除数据
  $sql = "delete from test_mysql where no = 2008";
  $ret = mysql_query($sql, $link);
  if ($ret === false) {
    die("Delete Failed: " . mysql_error($link));
  } else {
    echo "Delete Succeed
";
  }
   
  //修改数据
  $sql = "update test_mysql set name = 'yyyyyy' where no = 2009";
  $ret = mysql_query($sql, $link);
  if ($ret === false) {
    die("Update Failed: " . mysql_error($link));
  } else {
    echo "Update Succeed
";
  }
   
   
  //检索数据
  $sql = "select id,no,name from test_mysql";
  $ret = mysql_query($sql, $link);
  if ($ret === false) {
    die("Select Failed: " . mysql_error($link));
  } else {
    echo "Select Succeed
";
    while ($row = mysql_fetch_assoc($ret)) {
      echo "{$row['id']} {$row['no']} {$row['name']}
";
    }
  }
   
  //删除表
  $sql = "drop table if exists test_mysql";
  $ret = mysql_query($sql, $link);
  if ($ret === false) {
    die("Drop Table Failed: " . mysql_error($link));
  } else {
    echo "Drop Table Succeed
";
  }
 
 
?>

<!--?php
 
  /***配置数据库名称***/
  define("MYSQLNAME", "qzMlSkByflhScPCOFtax");
 
?-->

//创建一个数据库表
function _create_table($sql){
  mysql_query($sql) or die('创建表失败,错误信息：'.mysql_error());
  return "创建表成功";
}

//插入数据
function _insert_data($sql){
   if(!mysql_query($sql)){
    return 0;  //插入数据失败
  }else{
     if(mysql_affected_rows()>0){
       return 1;  //插入成功
     }else{
       return 2;  //没有行受到影响
     }
  }
}

//删除数据
function _delete_data($sql){
   if(!mysql_query($sql)){
    return 0;  //删除失败
   }else{
     if(mysql_affected_rows()>0){
       return 1;  //删除成功
     }else{
       return 2;  //没有行受到影响
     }
  }
}

//修改数据
function _update_data($sql){
   if(!mysql_query($sql)){
    return 0;  //更新数据失败
  }else{
     if(mysql_affected_rows()>0){
       return 1;  //更新成功;
     }else{
       return 2;  //没有行受到影响
     }
  }
}

//检索数据
function _select_data($sql){
  $ret = mysql_query($sql) or die('SQL语句有错误,错误信息：'.mysql_error());
  return $ret;
}

//删除表
function _drop_table($sql){
  mysql_query($sql) or die('删除表失败,错误信息：'.mysql_error());
  return "删除表成功";
}

//创建表
$create_sql = "CREATE TABLE IF NOT EXISTS `test_mysql` (
 `id` int(11) NOT NULL AUTO_INCREMENT,
 `from_user` varchar(40) DEFAULT NULL,
 `account` varchar(40) DEFAULT NULL,
 `password` varchar(40) DEFAULT NULL,
 `update_time` datetime DEFAULT NULL,
 PRIMARY KEY (`id`),
 UNIQUE KEY `from_user` (`from_user`)
)";
 
echo _create_table($create_sql);

//插入数据
$insert_sql = "insert into test_mysql(from_user, account, password, update_time) values('David','860510', 'abcabc', '2013-09-29 17:14:28')";
 
$res = _insert_data($insert_sql);
if($res == 1){
  echo "插入成功";
}else{
  echo "插入失败";
}

//更新数据
$update_sql = "update test_mysql set account = 860512 where account = 860510";
 
$res = _update_data($update_sql);
if($res == 1){
  echo "更新成功";
}elseif($res == 0){
  echo "更新失败";
}elseif($res == 2){
  echo "没有行受到影响";
}

//删除数据
$delete_sql = "delete from test_mysql where account = 860512";
 
$res = _delete_data($delete_sql);
if($res == 1){
  echo "删除成功";
}elseif($res == 0){
  echo "删除失败";
}elseif($res == 2){
  echo "没有该条记录";
}

//检索数据
$select_sql = "select * from test_mysql";
 
$result = _select_data($select_sql);
 
while($rows = mysql_fetch_array($result,MYSQL_ASSOC)){
 
  echo $rows[id]."--".$rows[from_user]."--".$rows[account]."--".$rows[password]."--".$rows[update_time];
  echo "
";
 
}

1. 绑定+账户+密码
如：绑定+860512+abc123
 
2. 查询
如：查询
 
3. 修改+旧密码+新密码
如：修改+abc123+123456
 
4. 删除
如：删除

//判断是否已经绑定
$select_sql="SELECT id from test_mysql WHERE from_user='$fromUsername'";
$res=_select_data($select_sql);
$rows=mysql_fetch_array($res, MYSQL_ASSOC);
if($rows[id] <> ''){
    $user_flag='y';     
}

if(trim($keywords[0] == '绑定')){
  if($user_flag <> 'y'){
    $insert_sql="INSERT INTO test_mysql(from_user, account, password, update_time) VALUES('$fromUsername','$keywords[1]','$keywords[2]','$nowtime')";
    $res = _insert_data($insert_sql);
    if($res == 1){
      $contentStr = "绑定成功";
    }elseif($res == 0){
      $contentStr = "绑定失败";
    }
  }else{
    $contentStr = "该账户已绑定";
  }
}

if(trim($keywords[0] == '查询')){
  $select_sql="SELECT * FROM test_mysql WHERE from_user='$fromUsername'";
  $select_res=_select_data($select_sql);
  $rows=mysql_fetch_assoc($select_res);
  if($rows[id] <> ''){
  $contentStr="账户:$rows[account]\n"."密码：$rows[password]\n"."From_user：$rows[from_user]\n"."更新时间：$rows[update_time]";
  }else{
  $contentStr="您还未绑定账户,查询不到相关信息,请先绑定,谢谢!";
  }
}

if(trim($keywords[0] == "修改")){
  $old_password=$keywords[1];
  $new_password=$keywords[2];
  $select_password_sql="SELECT * FROM test_mysql WHERE from_user='$fromUsername'";
  $select_res=_select_data($select_password_sql);
  $rows=mysql_fetch_assoc($select_res);
  if($old_password == $rows[password]){
    $update_sql="UPDATE test_mysql SET password='$new_password' WHERE from_user='$fromUsername'";
    $res = _update_data($update_sql);
    if($res == 1){
      $contentStr = "修改成功";
    }elseif($res == 0){
      $contentStr = "修改失败";
    }
  }else{
    $contentStr = "原密码有误,请确认后重试";
  }
}

if(trim($keywords[0] == "删除")){
  $delete_sql="DELETE FROM test_mysql WHERE from_user='$fromUsername'";
  $res = _delete_data($delete_sql);
  if($res == 1){
    $contentStr = "删除成功";
  }elseif($res == 0){
    $contentStr = "删除失败";
  }
}

<!--?php
 
require_once 'includes/configure.php';
 
class MySQLi_BAE{
 
  private $mysqli;
  private $host;
  private $user;
  private $password;
  private $port;
  private $database;
 
  //在类之外访问私有变量时使用
  function __get($property_name){
    if(isset($this--->$property_name)){
      return($this->$property_name);
    }else{
      return(NULL);
    }  
  }
 
  function __set($property_name, $value){
    $this->$property_name=$value;
  }
 
  function __construct(){
 
    /*从平台获取查询要连接的数据库名称*/
    $this->database = MYSQLNAME;
 
    /*从环境变量里取出数据库连接需要的参数*/
    $this->host = getenv('HTTP_BAE_ENV_ADDR_SQL_IP');
    $this->user = getenv('HTTP_BAE_ENV_AK');
    $this->password = getenv('HTTP_BAE_ENV_SK');
    $this->port = getenv('HTTP_BAE_ENV_ADDR_SQL_PORT');
 
    $this->mysqli = new mysqli($this->host, $this->user, $this->password, $this->database, $this->port);
    if($this->mysqli->connect_error){
      die("Connect Server Failed:".$this->mysqli->error);
    }
     
    $this->mysqli->query("set names utf8");
  }
 
  //dql statement
  function execute_dql($query){
     
    $res = $this->mysqli->query($query) or die("操作失败".$this->mysqli->error);
    return $res;
     
    //$this->mysqli->close();
  }
 
  //dml statement
  function execute_dml($query){
     
    $res = $this->mysqli->query($query) or die("操作失败".$this->mysqli->error);
     
    if(!$res){
      return 0;//失败
    }else{
      if($this->mysqli->affected_rows > 0){
        return 1;//执行成功
      }else{
        return 2;//没有行受影响
      }
    }
   
    //$this->mysqli->close();
  }
}
?>

<!--?php
 
require_once "MySQLi_BAE.class.php";
 
$mysqli_BAE=new MySQLi_BAE();
 
 
//**************dml*******************
$sql="insert into test_mysql (from_user, account, password, update_time) values('David','860510', 'abcabc', '2013-09-27 17:14:28')";
 
//$sql="update test_mysql set account = 860512 where account = 860510";
 
//$sql="delete from test_mysql where account = 860512";
 
$res=$mysqli_BAE--->execute_dml($sql);
 
if($res==0){
  echo "执行失败";
}elseif($res==1){
  echo "执行成功";
}else{
  echo "没有行数影响";
}
?>

<!--?php
 
require_once "MySQLi_BAE.class.php";
 
$mysqli_BAE=new MySQLi_BAE();
 
//**************dql******************
$sql="select * from test_mysql";
 
$res=$mysqli_BAE--->execute_dql($sql);
 
while($row=$res->fetch_row()){
   
  foreach($row as $key=>$val){
    echo "$val--";
  }
  echo '
';
}
 
$res->free();
?>