SDL LNK2019 无法解析的外部符号 _SDL_main,该符号在函数 _main_utf8 中被引用

LNK2019 无法解析的外部符号 _SDL_main,该符号在函数 _main_utf8 中被引用


#include "stdafx.h"
#include "SDL.h"

int main()
{
return 0;
}

其实就是main格式问题..
这个也是错误的:
int main(int argc, char *argv)
这种是正确的!!
int main(int argc, char *argv[])

nginx 虚拟目录 php环境

虚拟目录这样就行了,顺利地话.
location /dd/ {
root /chroot/dd;
rewrite /huodong/(.*) /$1 break;
index index.html index.htm index.php;
}

location ~ /dd.+.php$ {
root /chroot/dd;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
rewrite /dd/(.*\.php?) /$1 break;
}

php出现异常
FastCGI sent in stderr: “Primary script unknown” while reading response header from upstream
原因可能是顺序问题
location ~ \.php$ {
….
}
有这样的配置放新加php配置的后面。否则无法生效。php会报404。

Spring Security 异常 Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named ‘myUserDetailService’ is defined

Spring Security 新版本已经不再建议使用 password-encoder了


  
          
        	
        	
        
      

跟着网上的例子写


  
          
		 
      

提示:
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named ‘myUserDetailService’ is defined

注解了但还是找不到,如果写成 的形式,里面的dao也无法自动注入.

发现最后居然是因为:aspectj版本低啊! 原来写的1.5.4,写最新的就解决了….



    org.aspectj
    aspectjweaver
    1.8.3


    org.aspectj
    aspectjrt
    1.8.3


utf8mb4 – Emoji(Segoe UI 符号字体)显示

ios Emoji表情其他平台也是能支持的
win7 和以下的系统需要安装补丁
http://support.microsoft.com/kb/2729094
即使安装了补丁,还是有少部分不支持
测试页:
http://www.istartedsomething.com/uploads/emojisegoe.html

win2012还有mac表情是彩色的,win7补丁版本显示是黑白的。

数据库需要保存的话需要utf8mb4编码,mysql5.5+

有个不升级数据库的low方案,是存储的时候转下码。

————————
如何让mysql已有字段支持?
ALTER TABLE [tablename] CHANGE [columnname] [columnname] VARCHAR(1024) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci
网上有些是给database和table都转换成utf8mb4。其实没必要,转换字段就够了。

然后php也需要设置字符编码,thinkphp中需要如下设置,如果不设置,无法正常存储
‘DB_CHARSET’=> ‘utf8mb4’,

消息发送相关记录-socket mqtt

场景是,想在app中增加个私信功能,可以实时收到,应该是还有离线消息保存功能.

目前计划是使用第三方功能, 以防万一研究下其他处理方法.

mqtt 服务端:
moquette : java写的基于netty,netty基于nio
mosquitto : c写的,也开源的,不过c我不熟悉.看网上的测试,性能这个是最好的.
activemq: apache基金会的项目,有个web后台会便于查看.网上测试说普通消息性能没别家高.而且吃内存比较厉害.

我们应用用户不会同时在线那么多,用起来哪家都差不多, 用mosquitto就行.

自定义消息

自己写个消息体也行,3个分割方式,消息定长,消息头定,固定分割符. 然后基于netty处理下.性能应该也没问题.

离线消息
qos协议本身是支持离线数据的,客户端需要设置 clientId ,client开启的时候不清除session.

这样消息没法通过别的程序获得,没法集中管理.有个low点的办法是,所有消息都发给服务器client,服务器client根据内容进行分发. 客户端client收到消息的时候给服务端发送一个回执消息. 服务器收到回调后删除.这样的话服务端也相当于一个client,消息量加一倍.

ucenter ssl邮件发送

163邮箱已经不支持非ssl邮件发送了,但ucenter不支持ssl发送,需要微调下

sendmail.inc.php

40行左右

} elseif($mail_setting[‘mailsend’] == 2) {

/*
*自定义ssl发送邮件
*/
$mail = new MySendMail();
$mail->setServer($mail_setting['mailserver'], $mail_setting['mailauth_username'], $mail_setting['mailauth_password'], $mail_setting['mailport'], true); //到服务器的SSL连接
//如果不需要到服务器的SSL连接,这样设置服务器:$mail->setServer("smtp.126.com", "XXX@126.com", "XXX");
$mail->setFrom($mail_setting['mailfrom']);
$mail->setReceiver($mail['email_to']);
$mail->setMail($mail['subject'], "<b>tesaaat</b>");
return $mail->sendMail($mail[message]);

邮件发送类,可以贴在最底下,搜的,测试可用。

/**
 * 邮件发送类
 * 支持发送纯文本邮件和HTML格式的邮件,可以多收件人,多抄送,多秘密抄送,带附件(单个或多个附件),支持到服务器的ssl连接
 * 需要的php扩展:sockets、Fileinfo和openssl。
 * @example
 * $mail = new MySendMail();
 * $mail->setServer("XXXXX", "XXXXX@XXXXX", "XXXXX"); //设置smtp服务器
 * $mail->setServer("XXXXX", "XXXXX@XXXXX", "XXXXX", 465, true); //设置smtp服务器,到服务器的ssl连接
 * $mail->setFrom("XXXXX"); //设置发件人
 * $mail->setReceiver("XXXXX"); //设置收件人,多个收件人,调用多次
 * $mail->setCc("XXXX"); //设置抄送,多个抄送,调用多次
 * $mail->setBcc("XXXXX"); //设置秘密抄送,多个秘密抄送,调用多次
 * $mail->addAttachment("XXXX"); //添加附件,多个附件,调用多次
 * $mail->setMail("test", "test"); //设置邮件主题、内容
 * $mail->sendMail(); 发送
 */
class MySendMail {
    /**
     * @var string 邮件传输代理用户名
     * @access private
     */
    private $_userName;

    /**
     * @var string 邮件传输代理密码
     * @access private
     */
    private $_password;

    /**
     * @var string 邮件传输代理服务器地址
     * @access private
     */
    private $_sendServer;

    /**
     * @var int 邮件传输代理服务器端口
     * @access private
     */
    private $_port;

    /**
     * @var string 发件人
     * @access protected
     */
    protected $_from;

    /**
     * @var string 收件人
     * @access protected
     */
    protected $_to;

    /**
     * @var string 抄送
     * @access protected
     */
    protected $_cc;

    /**
     * @var string 秘密抄送
     * @access protected
     */
    protected $_bcc;

    /**
     * @var string 主题
     * @access protected
     */
    protected $_subject;

    /**
     * @var string 邮件正文
     * @access protected
     */
    protected $_body;

    /**
     * @var string 附件
     * @access protected
     */
    protected $_attachment;

    /**
     * @var reource socket资源
     * @access protected
     */
    protected $_socket;

    /**
     * @var reource 是否是安全连接
     * @access protected
     */
    protected $_isSecurity;

    /**
     * @var string 错误信息
     * @access protected
     */
    protected $_errorMessage;


    /**
     * 设置邮件传输代理,如果是可以匿名发送有邮件的服务器,只需传递代理服务器地址就行
     * @access public
     * @param string $server 代理服务器的ip或者域名
     * @param string $username 认证账号
     * @param string $password 认证密码
     * @param int $port 代理服务器的端口,smtp默认25号端口
     * @param boolean $isSecurity 到服务器的连接是否为安全连接,默认false
     * @return boolean
     */
    public function setServer($server, $username="", $password="", $port=25, $isSecurity=false) {
        $this->_sendServer = $server;
        $this->_port = $port;
        $this->_isSecurity = $isSecurity;
        $this->_userName = empty($username) ? "" : base64_encode($username);
        $this->_password = empty($password) ? "" : base64_encode($password);
        return true;
    }

    /**
     * 设置发件人
     * @access public
     * @param string $from 发件人地址
     * @return boolean
     */
    public function setFrom($from) {
        $this->_from = $from;
        return true;
    }

    /**
     * 设置收件人,多个收件人,调用多次.
     * @access public
     * @param string $to 收件人地址
     * @return boolean
     */
    public function setReceiver($to) {
        if(isset($this->_to)) {
            if(is_string($this->_to)) {
                $this->_to = array($this->_to);
                $this->_to[] = $to;
                return true;
            }
            elseif(is_array($this->_to)) {
                $this->_to[] = $to;
                return true;
            }
            else {
                return false;
            }
        }
        else {
            $this->_to = $to;
            return true;
        }
    }

    /**
     * 设置抄送,多个抄送,调用多次.
     * @access public
     * @param string $cc 抄送地址
     * @return boolean
     */
    public function setCc($cc) {
        if(isset($this->_cc)) {
            if(is_string($this->_cc)) {
                $this->_cc = array($this->_cc);
                $this->_cc[] = $cc;
                return true;
            }
            elseif(is_array($this->_cc)) {
                $this->_cc[] = $cc;
                return true;
            }
            else {
                return false;
            }
        }
        else {
            $this->_cc = $cc;
            return true;
        }
    }

    /**
     * 设置秘密抄送,多个秘密抄送,调用多次
     * @access public
     * @param string $bcc 秘密抄送地址
     * @return boolean
     */
    public function setBcc($bcc) {
        if(isset($this->_bcc)) {
            if(is_string($this->_bcc)) {
                $this->_bcc = array($this->_bcc);
                $this->_bcc[] = $bcc;
                return true;
            }
            elseif(is_array($this->_bcc)) {
                $this->_bcc[] = $bcc;
                return true;
            }
            else {
                return false;
            }
        }
        else {
            $this->_bcc = $bcc;
            return true;
        }
    }

    /**
     * 设置邮件附件,多个附件,调用多次
     * @access public
     * @param string $file 文件地址
     * @return boolean
     */
    public function addAttachment($file) {
        if(!file_exists($file)) {
            $this->_errorMessage = "file " . $file . " does not exist.";
            return false;
        }
        if(isset($this->_attachment)) {
            if(is_string($this->_attachment)) {
                $this->_attachment = array($this->_attachment);
                $this->_attachment[] = $file;
                return true;
            }
            elseif(is_array($this->_attachment)) {
                $this->_attachment[] = $file;
                return true;
            }
            else {
                return false;
            }
        }
        else {
            $this->_attachment = $file;
            return true;
        }
    }

    /**
     * 设置邮件信息
     * @access public
     * @param string $body 邮件主题
     * @param string $subject 邮件主体内容,可以是纯文本,也可是是HTML文本
     * @return boolean
     */
    public function setMail($subject, $body) {
        $this->_subject = $subject;
        $this->_body = base64_encode($body);
        return true;
    }

    /**
     * 发送邮件
     * @access public
     * @return boolean
     */
    public function sendMail() {
        $command = $this->getCommand();

        $this->_isSecurity ? $this->socketSecurity() : $this->socket();

        foreach ($command as $value) {
            $result = $this->_isSecurity ? $this->sendCommandSecurity($value[0], $value[1]) : $this->sendCommand($value[0], $value[1]);
            if($result) {
                continue;
            }
            else{
                return false;
            }
        }

        //其实这里也没必要关闭,smtp命令:QUIT发出之后,服务器就关闭了连接,本地的socket资源会自动释放
        $this->_isSecurity ? $this->closeSecutity() : $this->close();
        return true;
    }

    /**
     * 返回错误信息
     * @return string
     */
    public function error(){
        if(!isset($this->_errorMessage)) {
            $this->_errorMessage = "";
        }
        return $this->_errorMessage;
    }

    /**
     * 返回mail命令
     * @access protected
     * @return array
     */
    protected function getCommand() {
        $separator = "----=_Part_" . md5($this->_from . time()) . uniqid(); //分隔符

        $command = array(
            array("HELO sendmail\r\n", 250)
        );
        if(!empty($this->_userName)){
            $command[] = array("AUTH LOGIN\r\n", 334);
            $command[] = array($this->_userName . "\r\n", 334);
            $command[] = array($this->_password . "\r\n", 235);
        }

        //设置发件人
        $command[] = array("MAIL FROM: <" . $this->_from . ">\r\n", 250);
        $header = "FROM: <" . $this->_from . ">\r\n";

        //设置收件人
        if(is_array($this->_to)) {
            $count = count($this->_to);
            for($i=0; $i<$count; $i++){
                $command[] = array("RCPT TO: <" . $this->_to[$i] . ">\r\n", 250);
                if($i == 0){
                    $header .= "TO: <" . $this->_to[$i] .">";
                }
                elseif($i + 1 == $count){
                    $header .= ",<" . $this->_to[$i] .">\r\n";
                }
                else{
                    $header .= ",<" . $this->_to[$i] .">";
                }
            }
        }
        else{
            $command[] = array("RCPT TO: <" . $this->_to . ">\r\n", 250);
            $header .= "TO: <" . $this->_to . ">\r\n";
        }

        //设置抄送
        if(isset($this->_cc)) {
            if(is_array($this->_cc)) {
                $count = count($this->_cc);
                for($i=0; $i<$count; $i++){
                    $command[] = array("RCPT TO: <" . $this->_cc[$i] . ">\r\n", 250);
                    if($i == 0){
                        $header .= "CC: <" . $this->_cc[$i] .">";
                    }
                    elseif($i + 1 == $count){
                        $header .= ",<" . $this->_cc[$i] .">\r\n";
                    }
                    else{
                        $header .= ",<" . $this->_cc[$i] .">";
                    }
                }
            }
            else{
                $command[] = array("RCPT TO: <" . $this->_cc . ">\r\n", 250);
                $header .= "CC: <" . $this->_cc . ">\r\n";
            }
        }

        //设置秘密抄送
        if(isset($this->_bcc)) {
            if(is_array($this->_bcc)) {
                $count = count($this->_bcc);
                for($i=0; $i<$count; $i++){
                    $command[] = array("RCPT TO: <" . $this->_bcc[$i] . ">\r\n", 250);
                    if($i == 0){
                        $header .= "BCC: <" . $this->_bcc[$i] .">";
                    }
                    elseif($i + 1 == $count){
                        $header .= ",<" . $this->_bcc[$i] .">\r\n";
                    }
                    else{
                        $header .= ",<" . $this->_bcc[$i] .">";
                    }
                }
            }
            else{
                $command[] = array("RCPT TO: <" . $this->_bcc . ">\r\n", 250);
                $header .= "BCC: <" . $this->_bcc . ">\r\n";
            }
        }

        //主题
        $header .= "Subject: " . $this->_subject ."\r\n";
        if(isset($this->_attachment)) {
            //含有附件的邮件头需要声明成这个
            $header .= "Content-Type: multipart/mixed;\r\n";
        }
        elseif(false){
            //邮件体含有图片资源的需要声明成这个
            $header .= "Content-Type: multipart/related;\r\n";
        }
        else{
            //html或者纯文本的邮件声明成这个
            $header .= "Content-Type: multipart/alternative;\r\n";
        }

        //邮件头分隔符
        $header .= "\t" . 'boundary="' . $separator . '"';
        $header .= "\r\nMIME-Version: 1.0\r\n";
        $header .= "\r\n--" . $separator . "\r\n";
        $header .= "Content-Type:text/html; charset=utf-8\r\n";
        $header .= "Content-Transfer-Encoding: base64\r\n\r\n";
        $header .= $this->_body . "\r\n";
        $header .= "--" . $separator . "\r\n";

        //加入附件
        if(isset($this->_attachment) && !empty($this->_attachment)){
            if(is_array($this->_attachment)){
                $count = count($this->_attachment);
                for($i=0; $i<$count; $i++){
                    $header .= "\r\n--" . $separator . "\r\n";
                    $header .= "Content-Type: " . $this->getMIMEType($this->_attachment[$i]) . '; name="' . basename($this->_attachment[$i]) . '"' . "\r\n";
                    $header .= "Content-Transfer-Encoding: base64\r\n";
                    $header .= 'Content-Disposition: attachment; filename="' . basename($this->_attachment[$i]) . '"' . "\r\n";
                    $header .= "\r\n";
                    $header .= $this->readFile($this->_attachment[$i]);
                    $header .= "\r\n--" . $separator . "\r\n";
                }
            }
            else{
                $header .= "\r\n--" . $separator . "\r\n";
                $header .= "Content-Type: " . $this->getMIMEType($this->_attachment) . '; name="' . basename($this->_attachment) . '"' . "\r\n";
                $header .= "Content-Transfer-Encoding: base64\r\n";
                $header .= 'Content-Disposition: attachment; filename="' . basename($this->_attachment) . '"' . "\r\n";
                $header .= "\r\n";
                $header .= $this->readFile($this->_attachment);
                $header .= "\r\n--" . $separator . "\r\n";
            }
        }

        //结束邮件数据发送
        $header .= "\r\n.\r\n";


        $command[] = array("DATA\r\n", 354);
        $command[] = array($header, 250);
        $command[] = array("QUIT\r\n", 221);

        return $command;
    }

    /**
     * 发送命令
     * @access protected
     * @param string $command 发送到服务器的smtp命令
     * @param int $code 期望服务器返回的响应吗
     * @return boolean
     */
    protected function sendCommand($command, $code) {
        echo 'Send command:' . $command . ',expected code:' . $code . '
'; //发送命令给服务器 try{ if(socket_write($this->_socket, $command, strlen($command))){ //当邮件内容分多次发送时,没有$code,服务器没有返回 if(empty($code)) { return true; } //读取服务器返回 $data = trim(socket_read($this->_socket, 1024)); echo 'response:' . $data . '

'; if($data) { $pattern = "/^".$code."/"; if(preg_match($pattern, $data)) { return true; } else{ $this->_errorMessage = "Error:" . $data . "|**| command:"; return false; } } else{ $this->_errorMessage = "Error:" . socket_strerror(socket_last_error()); return false; } } else{ $this->_errorMessage = "Error:" . socket_strerror(socket_last_error()); return false; } }catch(Exception $e) { $this->_errorMessage = "Error:" . $e->getMessage(); } } /** * 发送命令 * @access protected * @param string $command 发送到服务器的smtp命令 * @param int $code 期望服务器返回的响应吗 * @return boolean */ protected function sendCommandSecurity($command, $code) { echo 'Send command:' . $command . ',expected code:' . $code . '
'; try { if(fwrite($this->_socket, $command)){ //当邮件内容分多次发送时,没有$code,服务器没有返回 if(empty($code)) { return true; } //读取服务器返回 $data = trim(fread($this->_socket, 1024)); echo 'response:' . $data . '

'; if($data) { $pattern = "/^".$code."/"; if(preg_match($pattern, $data)) { return true; } else{ $this->_errorMessage = "Error:" . $data . "|**| command:"; return false; } } else{ return false; } } else{ $this->_errorMessage = "Error: " . $command . " send failed"; return false; } }catch(Exception $e) { $this->_errorMessage = "Error:" . $e->getMessage(); } } /** * 读取附件文件内容,返回base64编码后的文件内容 * @access protected * @param string $file 文件 * @return mixed */ protected function readFile($file) { if(file_exists($file)) { $file_obj = file_get_contents($file); return base64_encode($file_obj); } else { $this->_errorMessage = "file " . $file . " dose not exist"; return false; } } /** * 获取附件MIME类型 * @access protected * @param string $file 文件 * @return mixed */ protected function getMIMEType($file) { if(file_exists($file)) { $mime = mime_content_type($file); if(! preg_match("/gif|jpg|png|jpeg/", $mime)){ $mime = "application/octet-stream"; } return $mime; } else { return false; } } /** * 建立到服务器的网络连接 * @access private * @return boolean */ private function socket() { //创建socket资源 $this->_socket = socket_create(AF_INET, SOCK_STREAM, getprotobyname('tcp')); if(!$this->_socket) { $this->_errorMessage = socket_strerror(socket_last_error()); return false; } socket_set_block($this->_socket);//设置阻塞模式 //连接服务器 if(!socket_connect($this->_socket, $this->_sendServer, $this->_port)) { $this->_errorMessage = socket_strerror(socket_last_error()); return false; } $str = socket_read($this->_socket, 1024); if(!strpos($str, "220")){ $this->_errorMessage = $str; return fasle; } return true; } /** * 建立到服务器的SSL网络连接 * @access private * @return boolean */ private function socketSecurity() { $remoteAddr = "tcp://" . $this->_sendServer . ":" . $this->_port; $this->_socket = stream_socket_client($remoteAddr, $errno, $errstr, 30); if(!$this->_socket){ $this->_errorMessage = $errstr; return false; } //设置加密连接,默认是ssl,如果需要tls连接,可以查看php手册stream_socket_enable_crypto函数的解释 stream_socket_enable_crypto($this->_socket, true, STREAM_CRYPTO_METHOD_SSLv23_CLIENT); stream_set_blocking($this->_socket, 1); //设置阻塞模式 $str = fread($this->_socket, 1024); if(!strpos($str, "220")){ $this->_errorMessage = $str; return false; } return true; } /** * 关闭socket * @access private * @return boolean */ private function close() { if(isset($this->_socket) && is_object($this->_socket)) { $this->_socket->close(); return true; } $this->_errorMessage = "No resource can to be close"; return false; } /** * 关闭安全socket * @access private * @return boolean */ private function closeSecutity() { if(isset($this->_socket) && is_object($this->_socket)) { stream_socket_shutdown($this->_socket, STREAM_SHUT_WR); return true; } $this->_errorMessage = "No resource can to be close"; return false; } }

python运行cmd命令行设置超时

网上文章一般都是用的这个方法

p = Popen(cmd,shell=True,stdout=PIPE, stderr=PIPE)

然后 p.poll() 可以获得状态,如果不是None,就是完成了。

不知道是不是windows的问题,运行dir这样的没事,如果运行ffmpeg就不行了,一直是None,无法获得状态。

 

最后用了比较原始的办法,开个线程运行cmd命令,主线程验证是否完成和是否超时。

命令行线程:

class CommandThread(threading.Thread):
    def __init__(self,cmd):
        threading.Thread.__init__(self)

        self.cmd=cmd
        self.result='';
        self.over=0;
        pass

    def run(self):
        try:
            strresult=subprocess.getoutput(self.cmd)
            self.result=strresult
            self.over=1
            return

        except Exception as e:
            print("cmd err")
        self.over=1
        pass

主线程:

@staticmethod
def cmd(command, timeout=10):
    try:

        cmdThread=CommandThread(command);
        cmdThread.start();
        t_beginning = time.time()
        seconds_passed = 0
        while True:
            if(cmdThread.over==1):
                str=cmdThread.result;
                break;
            seconds_passed = time.time() - t_beginning
            if timeout and seconds_passed > timeout:
                print("time out le;")
                break;
            time.sleep(0.1)

        # LogUtil.log(str)
        return str

    except Exception as e:
        print(e)
    return None

就是这个样子,因为sleep可能会有0.1的延迟,但是能解决ffmpeg命令行莫名其妙卡死的问题。

mq5.9 运行异常

运行直接异常

java.lang.IllegalStateException: LifecycleProcessor not initialized – call ‘refresh’ before invoking lifecycle methods via the context:

百思不得其解,直到看到这篇
http://zhidao.baidu.com/question/367406581580356204.html

说是计算机名不不能有-和下划线_,发现这台电脑确实有下划线,觉得不会这么邪门吧。
改后重启,好了。。。。。给跪了