DE102005031768A1 - Message transmission procedure for server to client with browser, involves code transmission as two components for first and second browser frames - Google Patents

Abstract

Around the high load of a server due to polling procedures (20) for Browser applications, which allow quick notification of a client (10) caused by the server (20) to reduce, becomes a method presented, which does not require polling of the server (20). To becomes the code (22) which is executed in the browser (11) divided into a first code portion and a second code portion. The first piece of code can be based on html, and will be in a first Browser frame (12) executed. The second piece of code is based on a protocol for which messages (MSG) sent by the server (20) without the preceding one Sending a request by the client (10) are receivable and is in a second browser frame (13), which via a Connection connects the client (10) to the server (20) executed. news (MSG) can via the second browser frame (13) to the first browser frame (12) be sent without the need of a previous request. The second browser frame (13) can be hidden.

Description

The The present invention relates to a method according to the preamble of claim 1

The http protocol is designed as a request / response protocol. The means that every request from a browser running on a client has a Answer from a server. This functionality is enough for the mere reading of hypertext pages on the Internet, because this only due to a request of the client hypertex pages from a server to the client getting charged. For some Applications, however, it is desirable that Messages from a server to a browser independent of a previous request from the browser.

This is for example when notifying a web application which administered a Centrex application, the case. For example, Centrex users their telephone function over one Run browser and control. This way, incoming calls are displayed in the browser. It For example, the phone displays data such as the name of the call Caller, the number of the caller or the receipt of a message into a voice mailbox.

by virtue of the request / response concept of the http protocol requires the Notification of a browser by a server that the browser Server at short intervals polls for existing messages (polls). This generates traffic, high load on the server and latency on notification.

moreover becomes the code that checks the message receipt monitoring on the browser and the Polling (for example Java applet or java script) always new when paging loaded. This will temporarily break the connection to the server and rebuilt, which creates additional latencies. This means on the one hand a big load on the server, since the Connection must be rebuilt again and again, on the other hand also longer Waiting and loading times for the Client.

For smaller ones Homepages will therefore avoid a page break by implementing the application loads once a page layout and this only locally on the browser changes. For big Portals, such as Enterprise Portals, is the avoidance page breaks, however, due to the huge amounts of data not realistic.

A different possibility for the transmission of Messages from a server to a browser are browser plug-ins, which the functionality expand the browser. The browser plug-ins, however, cause compatibility issues not every browser supports the plug-in.

Of the The present invention is therefore based on the task of data traffic between server and client.

These The object is achieved by the measures specified in claim 1 solved. Advantageous embodiments of the invention are specified in further claims.

• (A) übertragen von einem Code auf den Client;
• (B) aufteilen des Codes in einen ersten Code-Anteil und in einen zweiten Code-Anteil, wobei der zweite Code-Anteil auf einem Protokoll basiert, für welches von dem Server versendete Nachrichten ohne vorangehendes Versenden eines Requests durch den Client empfangbar sind;
• (C) ausführen des ersten Code-Anteils in einem ersten Browser-Frame;
• (D) ausführen des zweiten Code-Anteils in einem zweiten Browser-Frame, welcher über eine Verbindung den Client mit dem Server verbindet;
• (E) Versenden der Nachricht über die Verbindung von dem Server an den Client, kann der Datenverkehr zwischen Server und Client reduziert werden.

By making the method the method steps:

• (A) transferring a code to the client;
• (B) dividing the code into a first piece of code and a second piece of code, the second piece of code being based on a protocol for which messages sent by the server are receivable without prior sending of a request by the client;
• (C) executing the first code portion in a first browser frame;
• (D) executing the second code portion in a second browser frame which connects the client to the server via a connection;
• (E) Sending the message from the server to the client can reduce the traffic between server and client.

Especially can On the connection messages are sent to the browser without the Need that the browser requests in short intervals sent to the server, if there is a message on this. In addition, a page change within a portal normally does not require Reloading the second code portion.

The Dividing the code into a first code portion and a second one Code share can already be before transferring to the server stored codes are made to the client by, for example the first piece of code in html and the second piece of code in java script is written. Also the transfer The code stored on the server on the client can be used for the first code share and the second code portion be made split, for example, via two separate connections. In another example, the entire code is transmitted using the http protocol and then by the client in the first code share for html and in the second code share for Split Java script.

is all the code on a single server, so simplified thereby the administration of the transfer. However, it is also possible the Distribute code to multiple servers, such as by itself the first piece of code is located on a server and the second piece of code on another server. This increases the flexibility.

Of the second browser frame can be visibly displayed on a screen so that an end user directly through a contained in the second browser frame User interface with the server and / or with the first browser frame can interact.

Of the second browser frame can be hidden, for example by clicking assigns it a width of 0, which makes it invisible a screen of the client. With the help of the second browser frame can Messages to the first browser frame, in which for example running a user interface being transferred without the need of a previous request to the Server.

news can be transmitted to the second and the first browser frame without a polling of the server is necessary. This can be for example in Form can be made by a cookie, which is in the message is included and which of the second code portion in a data folder is placed on the client and from the first browser frame the data folder is picked up.

Becomes the message in the first code part or in the second code part integrated, so this has the advantage that the message also to transfer a browser which does not accept cookies.

at Centrex systems, which are administered by means of a browser, produces the conventional Method of polling for messages on the server via polling Considerable traffic, for example, information about one incoming call must be inquired at particularly short intervals, so that the person who receives the call with the help of the client or administer, does not miss the call.

Around preferably short transmission times It is an advantage if the connection connecting the second browser frame with the server connects a permanent Connection is.

1 shows an embodiment with visible (to be displayed on a screen) and functional units. From a server 20 becomes a code 22 to a client 10 on which a browser 11 is executed, transferred. The code 22 includes a html portion and a java script portion. The html part will be in a first browser frame 12 while the java script portion runs in a second browser frame 13 is executed, which establishes a connection to the server. The first browser frame 12 will be on a screen of the client 10 shown, wherein the representation of an address bar 14 , Menu items for a page selection 15 and an area for displaying a page 16 includes. The second browser frame 13 is not represented, for example by being assigned a frame width of 0.

The first browser frame 12 can respond to a request from the server 20 trigger. For example, new pages can be loaded into the first browser frame. A connection connects the second browser frame 13 with the server. About this can be the server 20 Messages directly to the browser 11 send. In this embodiment, the server sends 20 to the second browser frame 13 over the connection a message MSG, which a cookie 21 includes a caller number. The second browser frame 13 places the cookie in a folder 17 , which is intended for local cookies. The first browser frame 12 asks the folder 17 periodically and thus retrieves the cookie at its next query 21 and subsequently displays on the screen the receipt of a telephone call with the caller number. In this way, further actions, such as a page break or the opening of a new window, can be performed.

10

client

11

browser

12

first Browser frame

13

second Browser frame

14

address bar

15

Menu item for page selection

16

page

17

folder for cookies, Folder, data folder

20

server

21

cookie

22

code

MSG

message

Claims (11)

Method for transmitting a message (MSG) from a server ( 20 ) to a client ( 10 ), whereas on the client ( 10 ) a browser ( 11 ), comprising the method steps (A) transmitted by a code ( 22 ) on the client ( 10 ); (B) splitting the code ( 22 ) into a first piece of code and a second piece of code, the second piece of code being based on a protocol for which the server ( 20 ) sent messages (MSG) without prior sending of a request by the client ( 10 ) are receivable; (C) executing the first piece of code in a first browser frame ( 12 ); (D) executing the second code portion in a second browser frame ( 13 ), which connects the client ( 10 ) with the server ( 20 ) connects; (E) sending the message over the connection from the server ( 20 ) to the client ( 10 ). The method of claim 1, wherein the first code portion includes a html code. The method of claim 1 or 2, wherein the second Code share an applet and / or java script and / or visual basic includes. Method according to one of claims 1 to 3, wherein the second browser frame ( 13 ) is hidden. Method according to one of claims 1 to 3, wherein the second browser frame ( 13 ) is visible and / or wherein in the second browser frame ( 13 ) a user interface is executed. Method according to one of the preceding claims, wherein the message (MSG) a cookie ( 21 ), which of the second code portion in a data folder ( 17 ) and from the first browser frame ( 12 ) from the data folder ( 17 ) is picked up. Method according to one of the preceding claims, wherein the data from the second browser frame ( 13 ) received message (MSG) is integrated into the first code portion or in the second code portion. Method according to one of the preceding claims, wherein the browser ( 11 ) administered a Centrex application. Method according to claim 8, wherein the message (MSG) a call state of the Centrex application, such as a name and / or number of a caller and / or an input of a voice message in a voice mailbox displays. Method according to one of the preceding claims, wherein the code ( 22 ) from the server ( 20 ) on the client ( 10 ) is transmitted. Method according to one of the preceding claims, wherein the first browser frame ( 12 ) via another connection the client ( 10 ) with the server ( 20 ) connects.