WO2008022955A2

WO2008022955A2 - System and method for the production and reading of html forms

Info

Publication number: WO2008022955A2
Application number: PCT/EP2007/058463
Authority: WO
Inventors: Frank Volkmann
Original assignee: Siemens Aktiengesellschaft
Priority date: 2006-08-25
Filing date: 2007-08-15
Publication date: 2008-02-28
Also published as: DE102006039875A1; WO2008022955A3

Abstract

The invention relates to a method for reading HTML forms (2), wherein the HTML forms are primarily used for the parameterization and/or configuration of a programmable logic controller (5) by means of a web browser (4) via an intranet and/or internet, wherein the HTML forms are made of form elements (3), a scripting language being defined comprising processing instructions for the form elements, wherein the individual form elements (3) are data elements, or wherein the individual form elements (3) are statements of the scripting language, wherein an HTML form comprises at least one statement of the scripting language and wherein user data and /or instructions for the interpretation of the user data during reading of an HTML form (2) are described by the form elements.

Description

description

System and method for generating and reading HTML forms

The invention relates to a method and apparatus for generating and reading HTML forms using a scripting language. Furthermore, the invention relates to a generated with Hil ^¬ Fe of the method HTML form.

Today, HTML forms are used for communication between a client and a server such that the Ser ^¬ ver provides an HTML page usually in a entspre ^¬ and fair HTML form is filed, the HTML form fields contains that describe the data to be queried abge ^¬ . The browser or the client then returns the entered data to the server. The server then processes the geschrie by the browser in the form ^¬ entered data. Furthermore, so-called scripting mechanisms are known for communication between the server and the browser.

To interpret the form sent by the browser, a server today needs a corresponding piece of code for each form, which carries out the interpretation. A piece of code corresponding to the content of the form that can be processed on the server by a suitable module is absolutely necessary. In this case, exactly one matching module is required for the transmitted data on the server for each form used for interpreting the corresponding user data entered by the browser.

The object of the present invention is now to specify a method, a device and an HTML form, which allows a transmission of user data to a server, so that the user data can be interpreted directly from the HTML form. The object is achieved by a method for reading HTML forms, the HTML forms are used in particular for parameterization and / or configuration of a programmable logic controller by means of an engineering system via an intranet and / or Internet, in which the HTML Forms are formed from form elements in which a scripting language is defined, which contains processing instructions for the form elements, wherein the individual form elements are data elements or, where the individual form elements are statements of the Script ^¬ language, an HTML form of at least one statement of Scriptsprache exists and wherein with the Formu ^¬ larelementen user data and / or instructions for the interpretation of the user data when reading an HTML form are described.

Furthermore, the object is achieved by an HTML form, in particular for the parameterization and / or configuration of a programmable logic controller via a web browser via an intranet and / or Internet is provided, the HTML form has form elements, the HTML form is a script language, which contains Verarbeitungsanwei ^¬ solutions for the form elements, whereby the individual form elements are data elements or the individual form elements are statements of the script language, the HTML form is composed of at least one statement of Scriptspra ^¬ surface and wherein the form elements for the description of User data and / or instructions for the interpretation of the user data when reading the HTML form are provided.

Furthermore, the object is achieved by an apparatus for reading of HTML forms, the HTML forms are provided particularly for parameterization and / or Pro ^¬ project planning a programmable logic controller via egg NEN web browser via an intranet and / or Internet, where the HTML forms have form elements, where the HTML forms consist of a scripting language that contains processing instructions for the form elements where the individual form elements are statements of the scripting language, the HTML forms consisting of at least one statement of the scripting language and the formular elements for describing user data and / or instructions for the interpretation of the user data Reading the HTML form are provided.

The invention is based on the recognition that it is costly if, for the purposes of interpretation, this is done with the aid of a

HTML form transmitted user data on a server each for a form a specific module for interpretation is necessary. It is also very expensive to generate new forms or to change existing ones. The form must always be explicitly recreated.

To facilitate interpretation of the payload of the corresponding HTML form, and the creation of new forms or the Ände ^¬ tion of forms, is the form-item elements which are applied within the HTML form, in addition to the description of the user data, a description of Instructions are provided on how to deal with the corresponding payload. In this case, a form consists of several form elements and a form element can contain either user data or the instructions on how to handle the user data.

For this a script language is defined. Here, the statements of the script language are the corresponding form elements. Due to the fact that the forms in the form of ^¬ larelementen both the user data, as well as the instructions on how to handle the payload, have, can now be handled generically with the forms. New forms can be created from a form file or a file. A special module, which would be necessary to interpret the user data in the forms, is now unnecessary. Rather, there is only one module left, which is the data interpret and process all HTML forms that follow the appropriate script language.

In this case, in an advantageous embodiment of the invention, the form elements describing the user data are surrounded by the form elements containing the instructions for the interpretation. So a sequence of statements of the corresponding scripting language has to start over form ^¬ elements with instructions and end up over form elements with instructions. The corresponding form elements for the user data to be entered are contained in the middle of the sequence or between the sequences. Here, the instruction and the data elements can mix as desired.

Of particular advantage in the present invention is the easy maintainability of the HTML forms, since there is only one place where the forms must be changed. Fewer modules are required on the server for a special interpretation of the user data. The modules advertising the replaced rather by a single generic module that can terpretieren such in ^¬ forms based on the script language, it is understood that using the instructions the user data properly. In addition, a faster ANPAS ^¬ solution of forms is possible because no to kompilierender code needs to be adjusted. In a special way, the present invention is suitable for processing databases, for example SQL, XML.

Another advantage is that it allows HTML forms to be changed within systems that do not allow code to be reloaded. Because the HTML forms are created on the basis of the data to be processed or their description by a generic module, a generation is possible even without code nachzula-. In addition, it is not necessary to change the firmware as in existing procedures. Simply loading the new form is sufficient, as it generates itself and the statements of the scripting language are already known in the firmware. The use of the method according to the invention also enables a minimization of the system test effort.

In the following the invention will be described and explained in more detail with reference to the embodiments illustrated in the figures.

Show it:

1 shows a schematic representation of the method for generating and reading HTML forms,

2 shows an exemplary HTML form.

FIG. 1 shows a method in which an HTML form is generated by a server or a device 1. The HTML form 2 in this case has form elements 3. The formu ^¬ larelemente 3 are statements of the script language. In this case, the script language describes in the form elements 3 both the user data to be entered and the instructions as to how the user data are to be interpreted. Here, depending ^¬ the form element 3 corresponds to a statement of the script language. The HTML forms 2 can ver an intranet or Internet 8 are ^¬ sends. A browser 4 interprets the HTML forms and optionally enters user data in the HTML forms. Here, the user data are entered in the appropriate places that are finiert using the form elements for the user data de ^¬. The filled with the payload form 2 is then sent back to the server 1. In this case, the server 1 has a form file or a file 6 with the aid of which the HTML forms can be created. Furthermore, the server 1 has a generic module 7, by means of which the HTML forms returned by the browser can be interpreted. Here, the generic module 7 takes as expressed in the script language to ^¬ transfers within the statements that make up the form elements 3, the necessary information for interpreting the user data transmitted: <FORM METHOD = "POST" ENCTYPE = "text / plain" ACTION = "/ XMLModApp / Add" enctype = "plain / text">

Title </ TD> <TD>

</ TD> </ TR> <TR>

<TD> Link

</ TD> <TD>

</ FORM> As can be seen from the example, the actual payload elements:

surrounded by elements give the instructions to the database how to handle the data. This makes dealing with a database generic possible.

The HTML forms filled by the browser 4 are sent back to the server 1 via the intranet or internet. Here, the server 1 may be configured as a web server and installed on a programmable logic controller 5. This can be done for example via an Internet connection remote engineering or programming a programmable logic controller. Using a web browser or a special engineering system which is installed on the browser 4, can then be con ^¬ figured and parameterized via a entspre ^¬ sponding connecting the programmable logic controller. The web browser or the engineering system uses the HTML form to send data and instructions on how to handle the data to the web server. The web server can then interpret and translate the data according to the script instructions. In particular, the processing of data of a database is generically possible with the aid of the described method.

FIG. 2 shows an HTML form created using the script language. The following is the code necessary to create the form.

<HTML>

<HEAD><TITLE> Homepage of the A & D ATS 12 </ TITLE>

<H1> ATS12 RSS Feed

</ H1> <P> <H2>

Create entry for the channel <BIG>

Diploma thesis gSOAP and webservices </ BIG>. </ H2> </ P> <HR />

<P>

<SCRIPT LANG UAG E = "JavaSchpt" type = "text / javascript"> <! - function DoChannelSendTest (oForm)

{

/ ^* Duplicate title for display ^* / oFormular.ChanTitle.value = oFormular.DispTitle.value; / ^* Set PubDate and LastBuildDate ^* / MyDate = new Date (); oFormular.SetTimei .value = MyDate.toGMTSthng (); oFormular.SetTime2.value = MyDate.toGMTSthng (); return true; } ->

</ SCRIPT>

<H2> Create Channel </ H2> <P>

Before entries can be created for the channel, must be created. the channel are generated once. <BR/> <BR/>

Since there is no channel yet, please create a channel with the following form. </ P>

<INPUT TYPE = "HIDDEN" NAME = ¹¹ VALUE "VALUE =" channel "/><INPUT TYPE =" HIDDEN "NAME = ¹¹ STORE" VALUE = "NewChannel"/><INPUT TYPE = "HIDDEN" NAME = ¹¹ ADD " VALU E = ¹¹ ATTRI BUTE "/><INPUT TYPE =" HIDDEN "NAME = ¹¹ NAME" VALUE = "Name"/><INPUT NAME = ¹¹ VALUE "TYPE =" HIDDEN "size =" 40 "

VALUE = "WebService and gSOAP" READONLY />

<TR> <TD> Title </ TD> <TD>

</ TD></TR><TR> <TD> Link </ TD><TD><INPUT TYPE = ΗIDDEN "NAME = ¹¹ RESTORE ¹¹

VALUE = "NewChanner7>

<INPUT TYPE = ΗIDDEN "NAME = ¹¹ ADD" VALUE = ¹¹ NODE "/><INPUT TYPE =" HIDDEN "NAME = ¹¹ VALUE" VALUE = "Link"/><INPUT TYPE = "HIDDEN" NAME = ¹¹ ADD "VALUE = ¹¹ CONTENT "/><INPUT TYPE = ¹¹ TEXT" NAME = ¹¹ VALUE "size =" 40 "

VALUE = "/ en / Portal / Portal.mwsl? MainSelection = Projects & TabSelection = Entrance & DataFile = Projects.xml & TemplateFile = AppNavigation.xml & MainApp = & lnser tFile = / Projects / lndex.mwsl & ProjectName = WebService% 20and% 20gSOAP7>

</ TD> </ TR>

Description </ TD> <TD>

<TEXTAREA cols = 40 "NAME = ¹¹ VALUE" rows = "5" STYLE = "overflow: hidden" NAME = "VALUE"> Description </ TEXTAREA>

</ TD> </ TR> <TR>

<TD> Language </ TD> <TD> <INPUT TYPE = "HIDDEN" NAME = "RESTORE"

VALUE = "NewChannel" />

</ TD> </ TR>

Editor </ TD> <TD>

</ TD>

</ TR> <TR> <TD> Web Master </ TD>

<TD>

</ TD> </ TR>

<TD>

</ FORM> </ P>

</ P>

</ BODY> </ HTML>

Claims

claims

1. A method for reading HTML forms (2), wherein the HTML forms are used in particular for parameterization and / or configuration of a programmable logic controller (5) by means of a web browser (4) via an intranet and / or Internet,

• if the HTML forms of form elements (3) forms ge ^¬, • in which a scripting language is defined which contains proces ^¬ beitungsanweisungen for the form elements,

• where the individual form elements (3) are data elements or

• whereby the individual form elements (3) are statements of the scripting language,

• where an HTML form consists of at least one statement of the scripting language and

• using the form elements user data and / or instructions for the interpretation of the user data when reading an HTML form (2) are described.

2. The method of claim 1, wherein an HTML form also consists of at least one data element.

3. Method According to one of Claims 1 or 2, in which the form elements describing the user data are surrounded by the form elements describing the instructions for the interpretation of the user data.

4. The method according to any one of the preceding claims, wherein the new HTML forms from a file (6) created ^¬ the.

5. The method according to any one of the preceding claims, wherein the HTML forms are created by a generic module (7) based on the data to be processed or its description.

6. The method according to any one of the preceding claims, wherein the payload of the form elements by means of the instructions for the in ^¬ pretation descriptive form elements are processed by a generic module (7).

7. The method according to any one of the preceding claims, in which serve the instructions for the interpretation of the user data descriptive form elements for processing data of a database.

8. HTML form (2), in particular for the parameterization and / or configuration of a programmable logic controller (5) is provided via a web browser via an intranet and / or Internet,

Where the HTML form has form elements (3),

Where the HTML form consists of a scripting language containing processing instructions for the form elements, the individual form elements (3) being data elements or

• where the HTML form consists of at least one statement of the scripting language and

• wherein the form elements for describing Nutzda ^¬ th and / or instructions for the interpretation of the user data when reading the HTML form are provided.

9. HTML form (2) according to claim 8, wherein the parameterization and / or configuration of a programmable logic controller (5) by means of an engineering system (4) via an intranet and / or Internet is provided.

10. HTML form (2) according to any one of claims 8 or 9, wherein the HTML form also consists of at least one Datenele ^¬ ment.

11. The HTML form (2) according to claim 8, wherein the form elements describing the instructions for interpreting the user data are arranged such that they surround the form elements describing the user data.

12. HTML form (2) according to any one of claims 8 to 11, wherein the HTML form from a file (6) is adjustable.

13. HTML form (2) according to any one of claims 8 to 12, wherein a generic module (7) for creating the HTML form is provided on the basis of the data to be processed or its description.

The HTML form (2) according to any one of claims 8 to 13, wherein a generic module (7) is provided for processing the payload data of the form elements based on the form elements describing the instructions for the interpretation.

15. HTML form (2) according to any one of claims 8 to 14, wherein the instructions for the interpretation of the payload descriptive form elements are provided for processing data of a database.

16. Device (1) for reading HTML forms (2), wherein the HTML forms are provided in particular for parameterization and / or configuration of a programmable logic controller (5) via a web browser via an intranet and / or Internet,

Where the HTML forms have form elements (3),

• the HTML forms from a script language best ^¬ hen, elements which processing instructions for Form contains,

• where the individual form elements (3) are data elements or • whereby the individual form elements (3) are statements of the scripting language,

• wherein the HTML forms consist of at least one statement of the scripting language and • wherein the form elements for describing Nutzda ^¬ th and / or instructions for the interpretation of the user data when reading the HTML form are provided.

17. Device (1) according to claim 16, wherein the device as a module of a web server or web server as being forms ^¬ is.

18. Device (1) according to one of claims 16 or 17, wherein the HTML form also consist of at least one data element.

19. Device (1) according to one of claims 16 to 18, wherein the instructions describing the instructions for the interpretation of the user data form elements are arranged such that they surround the user data descriptive form elements.

20. Device (1) according to one of claims 16 to 19, wherein the forms from a file (6) can be created.

21. Device (1) according to any one of claims 16 to 20, wherein a generic module (7) for creating the HTML forms on the basis of the data to be processed or its description is provided.

22. Device (1) according to one of claims 16 to 21, wherein a generic module (7) for processing the payload of the form elements is provided on the basis of the instructions for the interpretation descriptive form elements.

23. Device (1) according to one of claims 16 to 23, wherein the instructions for the interpretation of the user data descriptive form elements are provided for processing data of a database.