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:" +cause.getmessage (), cause); } @Override Public voidChannelreadcomplete (Channelhandlercontext ctx)throwsException {logger.info ("Client completion request ...."); Ctx.flush (); }}View CodeService-side startup: Public class Servermain {privatestatic Log logger=logfactory.getlog (servermain. Class); Private Static Server server =new server (55550); Public Static void Main (string[] args) { logger.info ("server start ...."); Server.start ();}}View CodeClient Startup clas
). Entityframework.dynamicfilters files: If you need more information about Dynamic Data filters, you can see their files on git https://github.com/jcachat/ Entityframework.dynamicfilters We can create a custom filter for security, primary/passive entities, multiple tenants ... and whatnot. Other Object Relational mapping toolsThe ABP Data filter is implemented only on the Entity Framework. For other ORM tools, it is not yet available. But, in fact, you can emulate this pattern to other cases
U disk virus transmission mode has four kinds: 1, the U disk hidden under All folders, and copy themselves into the same folder with the same name folder icon of the virus program files (COM, exe, bat extension file), when you misunderstood click the virus file will activate the virus and the virus will open the name of the folder. 2, in the U disk all the program files inserted virus, this situation is relatively bad. You must use antivirus softwar
storage can be interpreted as byte. 2.bit is a binary number of a containing information or 2 options specifically specified 1 of the required amount of information is called a bit, is the smallest unit representing the message, only two states: 0 and 1. The internal circuit of the computer has both high and low levels. So the signal is expressed in binary form so that the computer can recognize it. So the smallest unit that the computer can transmit is of course the unit bit of your signal,
gingko--Baidu Intranet for data distribution Peer-to-peer transmission toolGingko currently used in Baidu internal more than 100 product lines of data distribution, configuration updates, module deployment, dictionary transfer and other scenarios. The company's product line daily use Gingko for 1600w data download operations, download the total amount of data in 700tb+, covering 2w+ machine. At the same time, currently able to support within 30 minute
instructions to implement. The instructions are located between two curly braces in http{. gzip on;This directive is used to turn the Gzip module on or off (On/off) Gzip_min_length 1k;Sets the minimum number of bytes of pages allowed to compress, and the number of page bytes is obtained from the header content-length. The default value is 0, regardless of how much of the page is compressed. It is recommended that you set the number of bytes larger than 1k, less than 1k may be more pressing.
Demand: Because OA put on the net, in order to improve security, user login, password encryption transmission, database password encryption save. Solution: The front desk is encrypted with the jquery MD5 plugin, which is downloaded from the Web. Background password encryption, with Java MD5 Tool class, this class downloaded from the Internet. Front Desk file: Jquery.min.js Jquery.md5.js There are download links, csdn download, 0 points Code: Click
Usually, the firewall on the host will let us encounter some minor problems when we need to send the data to the back door for the target host. If you open a port (or even a new socket) for our own process, most firewalls will intercept it. Is there any way to "penetrate" these firewalls? Let me introduce you to a way to "penetrate" the firewall to transfer important data on a small scale. However, you are not recommended to use this method in other situations. In fact, my idea is very simple,
Web page Production WEBJX article introduction: to Ali before the main work direction client terminal GUI design, here to chat a few words design icon idea, some views may be controversial, purely personal experience. To Ali before the main work direction client terminal GUI design, here to chat a few words design icon idea, some views may be controversial, purely personal experience. The core of the icon design is the accuracy of information t
Nginx proxy_buffer_size to solve the back-end service transmission data too much, in fact, the header is too big problem These three parameters have been set to fix the amount Proxy_buffer_size 64k; Proxy_buffers 4 32k; Proxy_busy_buffers_size 64k; In the spirit of excellence I turned the official websiteOfficial website explanation In general, I still do not understand. I put out the error message and need it later.Development said nginx502, back-
There are four ways to send data to the GPC server and client, and the startup code of the client startup server is described in the previous article, which will only list the code for the key implementation. 1. The client sends an object, and the server returns an object This approach is similar to the traditional way of HTTP request data, in the previous article there is a simple implementation example, which is no longer described here. 2. The client sends an object, and the server returns a
inspection, found that the switch has a port loop, resulting in high equipment load. (The loop here is not a chain Lu Cheng between switches, instead, the port of the switch is connected to the transmission SDH equipment, the port that transmits the SDH device has the self loop, and if the broadcast packet enters the port, it will be forwarded back again, so that the other ports will receive the broadcast packet two times, and the two broadcast packe
As opposed to TCP, UDP is a non-connected, unreliable transport protocol.If we want to use UDP to achieve reliable transmission, we need to solve two problems: packet loss and post-send first (packet order). Workaround:1) The packet number, according to the order of the packet received and stored;2) The receiving end receives the packet to send the acknowledgment message to the sending side, the sending side receives the confirmation data to continue
block that TCP considers to be sent; (2) When TCP sends a segment, it starts a timer, Used to wait for the destination to acknowledge receipt of this segment; If this acknowledgement is not received in time, the TCP sender will resend the message segment (timeout retransmission); (3) TCP sends a confirmation after receiving a data from the other end of the TCP connection, but this acknowledgement is not sent immediately. Instead, it is deferred for a fraction of a second before it is sent; (
The tutorial uses radial blur to make sunlight transmission. When making a picture of the highlight part of the selection, and then use the Blur filter selection of the appropriate angle blur, and then the overall adjustment of brightness and detail can be. Original Final effect 1, open the original image, implementation: Selection-color range, select High light, click OK; 2. Copy layer. Ctrl + J two times, copy Layer two times. Cla
Server-Side client communication After the connection to the server is established, we can send and receive data through this connection. Ports and ports transmit data in streams, because almost any object can be saved to the stream, so you can actually transfer any type of data between the client and the server. To the client, the data is written to the stream, the data is sent to the server, the data is read from the stream, and the data is received from the service side. For the server, the
The formation of Entity Framework object Framework -- separation and combination of the data transmission model DTO and Entity model Entity, dtoentity When using the Entity Framework, most of the time we operate on Entity model Entity, which is combined with the database operation context and can be implemented using various convenient methods such as LINQ, everything looks wonderful. However, if you consider using WCF, you may encounter many related
, the SYN + ACK packet. At this time, the server enters the syn_recv state; (3) third handshake: the client receives the SYN + ACK packet from the server and sends the ACK (ACK = k + 1) Confirmation packet to the server, the client and server enter the established status and complete the three-way handshake. Understanding that three handshakes are required: TCP is a reliable transmission. Therefore, reliability must be ensured when a connection is est
Video courses and related documents code address: https://github.com/EasyDarwin/Course#course-3RTP ProtocolThe real-time Transport protocol RTP (real-time Transport Protocol) is a network transport protocol that was published by the IETF Multimedia Transmission Working Group in RFC 1889 in 1996 and later updated in RFC3550.ITU-T also released its own RTP documentation as a h.225.0, but it was later canceled when the IETF released a standard RFC on its
Solve the problem of "sticking packets" for TCP network transmission Author: Yang Xiaoping Wang shengkai Source: http://www.ciw.com.cn/ Currently, TCP/IP communication protocol and its standard socket application programming interface (API) are widely used in network transmission applications ). The TCP/IP transport layer has two parallel protocols: TCP and UDP. TCP (transport control protocol) is connectio
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