15.4. Service-oriented architecture (SOA)-白红宇

SOA 与 REST很多相同之处，目前SOA主要是基于SOAP实现，也有基于MQ的实现。而REST只限于HTTP POST/GET/PUT/DELETE等等。

我个人比较喜欢机遇TCP的SOA实现，不喜欢SOAP大量XML传输。

15.4.1. SOAP实现

这里提供一个简单的机遇SOAP实现的SOA框架

index.php入口文件


     ",$class);}if (class_exists($class)) {    $server = new SoapServer(null, array('uri' => "http://webservice.example.com"));	$server->setClass($class);	$server->handle();}else{	die('Object isnot exist.');}

接口文件


     dbh = new Database('slave');	}	public function getAllByUsernameAndMobile($username,$mobile){		$result = array();		if(empty($username) or empty($mobile)){			return($result);		}		$sql = "SELECT username, chinese_name, sex FROM members m, members_digest md WHERE m.id = md.id and m.username= :username and md.mobile = md5( :mobile );";		$stmt = $this->dbh->prepare($sql);		$stmt->bindValue(':username', $username);		$stmt->bindValue(':mobile', $mobile);		$stmt->execute();		$result = $stmt->fetch(PDO::FETCH_ASSOC);		return($result);	}	public function getAllByLimit($limit,$offset)	{		$sql = "SELECT username FROM members limit ".$limit.",".$offset;		$stmt = $this->dbh->query($sql);		while ($row = $stmt->fetch()) {			//printf("%s\r\n", $row['username']);			$result[] = $row['username'];		}		return $result;	}	function __destruct() {       $this->dbh = null;   }}

客户端调用实例


      "http://webservice.example.com",                'location'=>'http://webservice.example.com/members',				 'compression' => 'SOAP_COMPRESSION_ACCEPT | SOAP_COMPRESSION_GZIP',				'login'=>'neo',				'password'=>'chen',                'trace'=>true				);$client = new SoapClient(null, $options);try {	print_r($client->getAllByUsernameAndMobile('280600086','13113668890'));	print_r($client->getAllByLimit(20,20));}catch (Exception $e){    echo 'Caught exception: ',  $e->getMessage(), "\n";}

Nginx 虚拟主机配置文件 /etc/nginx/conf.d/webservice.example.com.conf

server {    listen       80;    server_name  webservice.example.com;    charset utf-8;    access_log  /var/log/nginx/webservice.example.com.access.log  main;    auth_basic            "Login";    auth_basic_user_file  htpasswd;    location / {        root   /www/example.com/webservice.example.com/htdocs;        index  index.html index.php;		if ($request_filename !~ (js|css|images|robots/.txt|.*\.html|index/.php) ) {	            rewrite ^/(.*)$ /index.php/$1 last;		    break;		}    }    error_page   500 502 503 504  /50x.html;    location = /50x.html {        root   /usr/share/nginx/html;    }    location ~ /index.php/ {        root           /www/example.com/webservice.example.com/htdocs;        fastcgi_pass   127.0.0.1:9000;        fastcgi_index  index.php;        fastcgi_param  SCRIPT_FILENAME  /www/example.com/webservice.example.com/htdocs$fastcgi_script_name;        include        fastcgi_params;    }}

每增加一个功能需求，在library中创建一个 Class 文件即可。

index.php 有IP过滤功能，禁止非法IP访问

客户端采用压缩传输，节省xml传输开销

Nginx 设置了HTTP认证，防止他人探测，另外提示你还可以采用双向SSL认证。

15.4.2. MQ 实现

原文出处：Netkiller 系列手札

本文作者：陈景峯

转载请与作者联系，同时请务必标明文章原始出处和作者信息及本声明。