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Judul : Xpath Tutorial - How To Pick Out Elements Inwards Xpath Based On Attribute In Addition To Chemical Subdivision Value Example
link : Xpath Tutorial - How To Pick Out Elements Inwards Xpath Based On Attribute In Addition To Chemical Subdivision Value Example

Xpath Tutorial - How To Pick Out Elements Inwards Xpath Based On Attribute In Addition To Chemical Subdivision Value Example

In this XPATH tutorial nosotros volition encounter instance of selecting elements based upon its value or attribute value. We volition encounter how to direct betwixt 2 elements based upon value of its tike elements or based upon value of its attribute. XPATH is an of import concept to sympathize if yous are working amongst XML files. Most of Back-office platform relies on XML files for transporting information from 1 organisation to other in addition to if yous are working on whatever back-office or middle business office organisation inward Java or .NET, its of import to know nearly XPATH in addition to live on able to utilisation XPATH to direct information from XML. Some fourth dimension dorsum I bring shared my XPATH notes for Java programmer in addition to this instance shows truthful ability of XPATH every bit how convenient its to made selective decision. For those who are completely novel inward XML in addition to XPATH, XPATH is neat xml tool which allows yous to inquiry XML document in addition to direct or recall selective information much similar SQL but if yous are novel to XPATH or haven't had much sense amongst XML tool in addition to technology than yous volition grapple to notice right syntax of XPATH for your dissimilar need.

XPATH to direct chemical division based on attribute in addition to value

Here is our sample xml, which nosotros volition utilisation inward this XPATH tutorial :

<orders>
        <order orderNumber="1">
                <item>Electronics</item>
                <total>100</total>
        </order>
        <order orderNumber="2">
                <item>Computers</item>
                <total>200</total>
        </order>
        <order orderNumber="3">
                <item>food</item>
                <total>300</total>
        </order>
</orders>

In offset instance of XPATH aspect nosotros volition encounter how to direct full chemical division for social club which has exceptional value "Electronics"

XPATH :

/orders/order[item/text()='Electronics']/total

value : 100

here text() business office returns value of <item> element

[] brackets are used to define status or predicate, which is comparison text of <item> tag amongst “Electronics”. Similarly nosotros tin forcefulness out extend this XPATH to notice full for Orders where exceptional is Computers in addition to food

/orders/order[item/text()='Computers']/total

200

/orders/order[item/text()='food']/total

300

On mo instance of XPATH aspect nosotros volition notice full chemical division for social club whose orderNumber attribute has value "2"

XPATH : /orders/order[@orderNumber='1']/total

value : 100

here [] is used for status in addition to @ is used to larn value from attribute.

/orders/order[@orderNumber='2']/total

200

/orders/order[@orderNumber='3']/total

300

If yous are novel to XML or XPATH I propose using XML-SPY tool it has inward built XPATH evaluator which shows the number of XPATH every bit presently every bit yous type in addition to it supports XPath1.0 in addition to XPATH2.0 every bit beta. It also has XPATH re-create functionality then yous tin forcefulness out only direct whatever chemical division inward XML inward its grid sentiment in addition to re-create its XPATH to utilisation inward your Java program.

Further Learning
Java In-Depth: Become a Complete Java Engineer!
Master Java Web Services in addition to REST API amongst Spring Boot
Difference betwixt DOM in addition to SAX parser inward Java

How to read XML files using SAX parser inward Java

How to parse XML files using DOM parser inward Java

How to escape XML Meta characters from String inward Java program

How to read in addition to alter XML files using JDOM parser inward Java

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