CN104753891B

CN104753891B - A kind of XML message analysis method and device

Info

Publication number: CN104753891B
Application number: CN201310752479.XA
Authority: CN
Inventors: 张博; 蒋乐; 曹王华; 吴桂祥
Original assignee: China Mobile Group Hunan Co Ltd
Current assignee: China Mobile Group Hunan Co Ltd
Priority date: 2013-12-31
Filing date: 2013-12-31
Publication date: 2019-04-05
Anticipated expiration: 2033-12-31
Also published as: CN104753891A

Abstract

The embodiment of the invention provides a kind of analysis method and devices of XML message, this method comprises: determining the position of the termination character of first specified node in XML message to be resolved, and XML message is divided into the first XML message and the second XML message as line of demarcation by the position to determine；Determine the position that the bebinning character of node is specified in the first XML message, and from bebinning character is intercepted in the first XML message to the character string between the position of termination character；The character string of interception is parsed, obtain the relevant information for each element that specified node is included, using next specified node as first specified node, using the second XML message as XML message after, the step of returning to the position for determining termination character, until having parsed all specified nodes.The present invention need to only parse in the corresponding a part of character string of node where the element required for comprising user, save the more parsing time.

Description

A kind of XML message analysis method and device

Technical field

The present invention relates to field of communication technology more particularly to a kind of XML message analysis method and devices.

Background technique

Currently, extensible markup language (Extensible Markup Language, XML) packet parsing is in WEB application In using more and more extensive, be particularly applied in Web service (Web service), for example, in parsing Web service When XML message, generallys use jdom method and dom4J method realizes parsing.

Specifically, when using jdom method parsing XML message, the specific process of analysis of resolver SAX execution are as follows: will Alphabet string in XML message is converted to document object (document), i.e. dom tree shape structure；Then to the text after conversion Shelves object carries out sequential scan and traversing operation, finally obtains the relevant information of element needed for user, such as element or element category Property value.During SAX parses document object, the beginning and end of document object, the beginning of element and the place terminated are encountered A series of event handling function will be triggered, completes corresponding operation by these functions.

Assuming that XML character string needed for user has been obtained using jdom method, then, specific implementation code can be such as Under:

When using dom4J method parsing XML message, specific process of analysis is similar with jdom method, different, In dom4J method, largely used application programming interface (Application Programming Interface, API the Collections class in), and some alternatives are additionally provided to obtain better analysis feature or more direct Coding mode can use in many open source projects, such as Hibernate.

Assuming that XML character string needed for user has been obtained using dom4j method, then, specific implementation code can be such as Under:

As can be seen that being required to regardless of which kind of process of analysis used by institute in XML message from above two process of analysis There is character string to be converted to document object, and in practical applications, data all in XML message may can't be used, this is just The time for keeping system consumption excessive parses the data that these will not be used, and causes the time for parsing XML message longer.

Summary of the invention

The embodiment of the invention provides a kind of analysis method and devices of XML message, are reported to solve using existing XML The time longer problem of the analysis mode parsing XML message of text.

Based on the above issues, the analytic method of a kind of XML message provided in an embodiment of the present invention, comprising:

It determines the position of the termination character of first specified node in XML message to be resolved, and is with the position determined The XML message is divided into the first XML message and the second XML message by line of demarcation；

Determine the position that the bebinning character of node is specified described in first XML message, and from first XML message It is middle to intercept the bebinning character to the character string between the position of the termination character；

The character string of interception is parsed, the relevant information for each element that the specified node is included is obtained, will under One specified node as first specified node, using second XML message as the XML message after, return determine described in The step of position of termination character, until having parsed all specified nodes.

A kind of resolver of XML message provided in an embodiment of the present invention, comprising:

Determining module, for determining the position of the termination character of first specified node in XML message to be resolved；And really The position of the bebinning character of node is specified described in the first XML message that the fixed division module divides；

Division module, the position for being determined using the determining module are divided into as line of demarcation, by the XML message One XML message and the second XML message；

Interception module, for intercepting the bebinning character to the position of the termination character from first XML message Between character string；

Parsing module, the character string for intercepting to the interception module parse, and obtain the specified node and are wrapped The relevant information of each element contained, using next specified node as first specified node, using second XML message as institute After stating XML message, the step of determining module determines the position of the termination character is returned to, until having parsed all specify Node.

The beneficial effect of the embodiment of the present invention includes:

A kind of analytic method of XML message provided in an embodiment of the present invention determines XML report to be resolved in the method The position of the termination character of first specified node in text, and the XML message is divided by the position to determine as line of demarcation First XML message and the second XML message；Determine the position that the bebinning character of node is specified described in first XML message, and The bebinning character is intercepted from first XML message to the character string between the position of the termination character；To interception Character string is parsed, and the relevant information for each element that the specified node is included is obtained, using next specified node as First specified node, using second XML message as the XML message after, return to the position for determining the termination character Step, until having parsed all specified nodes.In embodiments of the present invention, the element that user needs in parsing XML message Relevant information when, only need to be according to above-mentioned stream it is not necessary that the alphabet string in XML message to be converted to complicated document object Journey parses in the corresponding a part of character string of node where the element required for comprising user, without recycling every time Entire message is traversed, the more parsing time is saved, i.e., the time that aforementioned this analysis mode uses is shorter.

Detailed description of the invention

Fig. 1 is the flow chart of the analytic method of XML message provided in an embodiment of the present invention；

Fig. 2 is the structural schematic diagram of the resolver of XML message provided in an embodiment of the present invention.

Specific embodiment

With reference to the accompanying drawings of the specification, to the specific of the analysis method and device of XML message provided in an embodiment of the present invention Embodiment is illustrated.

A kind of analytic method of XML message provided in an embodiment of the present invention, as shown in Figure 1, specifically includes the following steps:

S11: the position of the termination character of first specified node in XML message to be resolved, and the position to determine are determined It is set to line of demarcation, XML message is divided into the first XML message and the second XML message；

S12: the position that the bebinning character of node is specified in the first XML message is determined, and from intercepting in the first XML message Beginning character is to the character string between the position of termination character；

S13: parsing the character string of interception, obtains the relevant information for each element that specified node is included, will under One specified node as first specified node, using the second XML message as XML message after, return above-mentioned steps S11, until All specified nodes are parsed.

In embodiments of the present invention, for XML message to be resolved, which node in this message is needed to parse, is It is pre-set, that is to say, that node to be resolved is known.

Preferably, in above-mentioned steps S11, function specifically is found using position, is found first in XML message to be resolved The position of the termination character of a specified node, specific search procedure are the prior art, and this will not be detailed here.

Preferably, in above-mentioned steps S12, function still is found using position, finds and specifies node in the first XML message Bebinning character position.

Preferably, in above-mentioned steps S13, existing process of analysis can be used, the character string of interception is parsed, have Body resolving is no longer described in detail.It certainly, can also be according to the format of practical message when being parsed using existing process of analysis Existing procedure is optimized.

Further, in embodiments of the present invention, in the related letter for parsing each element that all specified nodes are included After breath, can by these information preservations to Hash table (HASHMAP) so that called side call required for element related letter Breath.Herein, the relevant information of element generally includes the value etc. of element term and/or element property.

In embodiments of the present invention, it when the relevant information for the element that user needs in parsing XML message, is not necessarily to XML Alphabet string in message is converted to complicated document object, only needs according to the above process, from including member required for user It parses in the corresponding a part of character string of node where plain, without looping through entire message every time, saves more The parsing time.

It is described in detail below with reference to analytic method of following specific embodiments to above-mentioned XML message.

Assuming that following XML messages are the detailed single response messages of common a set meal and fixed charge, wherein<r></R>for root Node,<h></H>for two leaf nodes under root node.

And<s></S>and<m></M>for two child nodes under leaf node B, S node is made of multiple elements；M node by 2 child nodes<l></L>composition；Such a multilayer nest structure constitutes a complete XML message, this message is one The character string of a XML form.

Specific XML message is as follows:

<?xml version="1.0"encoding="UTF-8"?>

<R>

<H>

<f n="RESULT_INFO">it calls successfully</F>

</H>

<S>

</S>

<M>

<L>

<f n="TRANSDATA3">10 yuan of shelves of flow monthly package</F>

</L>

<L>

<f n="TRANSDATA3">10 yuan of music set packets of fashion plan</F>

</L>

</M>

</R>。

Assuming that needing to parse in this XML message<h></H>,<s></S>, first<l></L>these three specified node institutes The relevant information (such as element term and/or the value of element property etc.) for the element for including, then, it is first in above-mentioned steps S11 The termination character that function finds first specified node is found first with position</H>position, using this position as line of demarcation, will XML message from</H>this position is divided into the first XML message and the second XML message, for example following code institutes of the first XML message Show, the second XML message be sinceto</R>that a part of character string.

Specific first XML message is as follows:

<?xml version="1.0"encoding="UTF-8"?>

<R>

<H>

<f n="RESULT_INFO">it calls successfully</F>

</H>。

Further, in the first XML message, bebinning character < H that function finds first specified node is found using position >position, and intercepted out from the first XML message<h>it arrives</H>between character string；It then, can for this partial character string By using these functions of splitMulti, splitSingle, splitLeft, splitRight, by first specified node<H> </H>the relevant information of the elements such as the RESULT_CODE for being included parses, and is saved into HASHMAP, to adjust With the relevant information of element required for can obtaining from HASHMAP, such as RESULT_CODE this element is entitled KEY, the value 0 of element property are VALUE.

Next, generalarrive</R>this part of message as above-mentioned XML message, using with parse first specified node The identical process of the process of the relevant information for the element for being included, further parsing obtains<s></S>this specified node is wrapped The relevant information parsed is equally saved in HASHMAP by the relevant information of the element contained；

Finally, will<m>it arrives</R>this part of message is used as above-mentioned XML message again, using with parse first specified section The identical process of process of the relevant information of the included element of point, further parsing obtains first<l></L>node is wrapped The relevant information parsed is equally also saved in HASHMAP by the relevant information of the element contained, and so, these three refer to The relevant information for determining node, which parses, to be finished.；

Based on the same inventive concept, the embodiment of the invention also provides a kind of resolvers of XML message, due to the device The principle of solved problem is similar to the analytic method of aforementioned XML message, therefore the implementation of the device may refer to preceding method Implementation, overlaps will not be repeated.

A kind of resolver of XML message provided in an embodiment of the present invention, as shown in Figure 2, comprising:

Determining module 21, for determining the position of the termination character of first specified node in XML message to be resolved；And Determine the position that the bebinning character of node is specified in the first XML message of the division of division module 22；

XML message is divided into first as line of demarcation by division module 22, the position for being determined using determining module 21 XML message and the second XML message；

Interception module 23, for from bebinning character is intercepted in the first XML message to the character between the position of termination character String；

Parsing module 24, the character string for intercepting to interception module 23 parse, and obtain specified node and are included The relevant information of each element, using next specified node as first specified node, using the second XML message as XML message after, The step of determining module 21 determines the position of termination character is returned to, until having parsed all specified nodes.

Preferably, above-mentioned determining module 21 is specifically used for finding function using position, determines XML message to be resolved In first specified node termination character position；And function is found using position, it determines to specify section in the first XML message The position of the bebinning character of point.

Preferably, above-mentioned apparatus, further includes:

Preserving module 25, the correlation for each element that all specified nodes for respectively obtaining parsing module 24 are included Information preservation is into HASHMAP, so that called side calls the relevant information of required element.

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims

1. a parsing method of extensible markup language XML message, is characterized in that, comprises:

Determine the position of the end character of the first specified node in the XML message to be parsed, and the determined position is the dividing line, and divide the XML message to be parsed into a first XML message and a second XML message , wherein the specified node is preset;

determining the position of the starting character of the specified node in the first XML message, and intercepting the character string between the starting character and the ending character from the first XML message;

The intercepted character string is parsed to obtain the relevant information of each element contained in the specified node, and the next specified node is used as the first specified node, and the second XML message is used as the XML message to be parsed. After the text, return to the step of determining the position of the end character until all the specified nodes are parsed.

2. method as claimed in claim 1 is characterized in that, determine the position of the end character of first designated node in the XML message to be parsed in the following manner:

Utilize the position search function to determine the position of the end character of the first specified node in the XML message to be parsed;

The position of the start character of the specified node in the first XML message is determined in the following manner:

Using the position finding function, the position of the start character of the specified node in the first XML message is determined.

3. The method of claim 1 or 2, further comprising:

The obtained relevant information of each element contained in all specified nodes is respectively saved in the hash table HASHMAP, so that the caller can call the relevant information of the required element.

4. a parsing device for extensible markup language XML message, is characterized in that, comprises:

A determining module, for determining the position of the end character of the first specified node in the XML message to be parsed; and determining the position of the initial character of the specified node in the first XML message divided by the dividing module, wherein the The specified node is preset;

a dividing module, configured to divide the XML message to be parsed into a first XML message and a second XML message with the position determined by the determining module as a dividing line;

An interception module, for intercepting the character string between the position of the start character and the end character from the first XML message;

A parsing module, configured to parse the string intercepted by the intercepting module, obtain relevant information of each element contained in the designated node, take the next designated node as the first designated node, and use the second XML message After serving as the XML message to be parsed, the determining module is triggered to perform the step of determining the position of the end character until all specified nodes are parsed.

5. device as claimed in claim 4, is characterized in that, described determination module, is specifically used for utilizing position search function, determines the position of the end character of first designated node in described XML message to be parsed; And Using the position finding function, the position of the start character of the specified node in the first XML message is determined.

6. The device of claim 4 or 5, further comprising:

The saving module is used to save the relevant information of each element contained in all the specified nodes obtained by the parsing module into the hash table HASHMA, so that the caller can call the relevant information of the required element.