XPATH拋出java.lang.RuntimeException-有解無憂

我想要CONFIDENTIAL作為我想要的輸出。

我的程式

import org.apache.xmlbeans.XmlException;
import org.apache.xmlbeans.XmlObject;
import java.io.File;
import java.io.IOException;

public class main {
    public static void main(String[] args) {
        File file = new File("test.xml");
        try {
            XmlObject xoobj = XmlObject.Factory.parse(file);
            var declareNameSpaces = "declare namespace v='urn:schemas-microsoft-com:vml' ";
            final String xpathFilter = "data(//v:shape[contains(@id,'PowerPlusWaterMarkObject')]/v:textpath/@string)";

            XmlObject[] arr = xoobj.selectPath(declareNameSpaces   xpathFilter);
            System.out.println(arr[0].toString());
        } catch (XmlException | IOException ex) {
            System.out.println(ex);
        }
    }
}

測驗檔案

<xml-fragment
        xmlns:wpc="http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas" xmlns:cx="http://schemas.microsoft.com/office/drawing/2014/chartex" xmlns:cx1="http://schemas.microsoft.com/office/drawing/2015/9/8/chartex" xmlns:cx2="http://schemas.microsoft.com/office/drawing/2015/10/21/chartex" xmlns:cx3="http://schemas.microsoft.com/office/drawing/2016/5/9/chartex" xmlns:cx4="http://schemas.microsoft.com/office/drawing/2016/5/10/chartex" xmlns:cx5="http://schemas.microsoft.com/office/drawing/2016/5/11/chartex" xmlns:cx6="http://schemas.microsoft.com/office/drawing/2016/5/12/chartex" xmlns:cx7="http://schemas.microsoft.com/office/drawing/2016/5/13/chartex" xmlns:cx8="http://schemas.microsoft.com/office/drawing/2016/5/14/chartex"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:aink="http://schemas.microsoft.com/office/drawing/2016/ink" xmlns:am3d="http://schemas.microsoft.com/office/drawing/2017/model3d"
        xmlns:o="urn:schemas-microsoft-com:office:office"
        xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" xmlns:m="http://schemas.openxmlformats.org/officeDocument/2006/math"
        xmlns:v="urn:schemas-microsoft-com:vml"
        xmlns:wp14="http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing" xmlns:wp="http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing"
        xmlns:w10="urn:schemas-microsoft-com:office:word"
        xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main" xmlns:w14="http://schemas.microsoft.com/office/word/2010/wordml"
        xmlns:w15="http://schemas.microsoft.com/office/word/2012/wordml" xmlns:w16cex="http://schemas.microsoft.com/office/word/2018/wordml/cex" xmlns:w16cid="http://schemas.microsoft.com/office/word/2016/wordml/cid" xmlns:w16="http://schemas.microsoft.com/office/word/2018/wordml" xmlns:w16sdtdh="http://schemas.microsoft.com/office/word/2020/wordml/sdtdatahash" xmlns:w16se="http://schemas.microsoft.com/office/word/2015/wordml/symex" xmlns:wpg="http://schemas.microsoft.com/office/word/2010/wordprocessingGroup" xmlns:wpi="http://schemas.microsoft.com/office/word/2010/wordprocessingInk" xmlns:wne="http://schemas.microsoft.com/office/word/2006/wordml" xmlns:wps="http://schemas.microsoft.com/office/word/2010/wordprocessingShape">
    <w:sdtPr>
        <w:id w:val="-1126775779"/>
        <w:docPartObj>
            <w:docPartGallery w:val="Watermarks"/>
            <w:docPartUnique/>
        </w:docPartObj>
    </w:sdtPr>
    <w:sdtContent>
        <w:p w14:paraId="41319DAD" w14:textId="4534348F" w:rsidR="006868D8" w:rsidRDefault="006868D8">
            <w:pPr>
                <w:pStyle w:val="Header"/>
            </w:pPr>
            <w:r>
                <w:rPr>
                    <w:noProof/>
                </w:rPr>
                <w:pict w14:anchorId="63C3AA3C">
                    <v:shapetype id="_x0000_t136" coordsize="21600,21600" o:spt="136" adj="10800" path="m@7,l@8,m@5,21600l@6,21600e">
                        <v:formulas>
                            <v:f eqn="sum #0 0 10800"/>
                            <v:f eqn="prod #0 2 1"/>
                            <v:f eqn="sum 21600 0 @1"/>
                            <v:f eqn="sum 0 0 @2"/>
                            <v:f eqn="sum 21600 0 @3"/>
                            <v:f eqn="if @0 @3 0"/>
                            <v:f eqn="if @0 21600 @1"/>
                            <v:f eqn="if @0 0 @2"/>
                            <v:f eqn="if @0 @4 21600"/>
                            <v:f eqn="mid @5 @6"/>
                            <v:f eqn="mid @8 @5"/>
                            <v:f eqn="mid @7 @8"/>
                            <v:f eqn="mid @6 @7"/>
                            <v:f eqn="sum @6 0 @5"/>
                        </v:formulas>
                        <v:path textpathok="t" o:connecttype="custom" o:connectlocs="@9,0;@10,10800;@11,21600;@12,10800" o:connectangles="270,180,90,0"/>
                        <v:textpath on="t" fitshape="t"/>
                        <v:handles>
                            <v:h position="#0,bottomRight" xrange="6629,14971"/>
                        </v:handles>
                        <o:lock v:ext="edit" text="t" shapetype="t"/>
                    </v:shapetype>
                    <v:shape id="PowerPlusWaterMarkObject357476642" o:spid="_x0000_s1025" type="#_x0000_t136" style="position:absolute;margin-left:0;margin-top:0;width:527.85pt;height:131.95pt;rotation:315;z-index:-251657216;mso-position-horizontal:center;mso-position-horizontal-relative:margin;mso-position-vertical:center;mso-position-vertical-relative:margin" o:allowincell="f" fillcolor="silver" stroked="f">
                        <v:fill opacity=".5"/>
                        <v:textpath style="font-family:&quot;Calibri&quot;;font-size:1pt" string="CONFIDENTIAL"/>
                        <w10:wrap anchorx="margin" anchory="margin"/>
                    </v:shape>
                </w:pict>
            </w:r>
        </w:p>
    </w:sdtContent>
</xml-fragment>

輸出

/Library/Java/JavaVirtualMachines/jdk-11.0.13.jdk/Contents/Home/bin/java -javaagent:/private/var/folders/5_/5blqbh750wsc9pc01bn0lgph0000gn/T/AppTranslocation/3F078016-ECB8-463C-BEBA-5701DF97E1A5/d/IntelliJ IDEA CE.app/Contents/lib/idea_rt.jar=54386:/private/var/folders/5_/5blqbh750wsc9pc01bn0lgph0000gn/T/AppTranslocation/3F078016-ECB8-463C-BEBA-5701DF97E1A5/d/IntelliJ IDEA CE.app/Contents/bin -Dfile.encoding=UTF-8 -classpath /Users/sahibyar/Dailytasks/test-project/target/classes:/Users/sahibyar/.m2/repository/org/apache/xmlbeans/xmlbeans/3.1.0/xmlbeans-3.1.0.jar:/Users/sahibyar/.m2/repository/org/apache/xmlbeans/xmlbeans-xpath/2.4.0/xmlbeans-xpath-2.4.0.jar:/Users/sahibyar/.m2/repository/net/sf/saxon/saxon/8.5.1/saxon-8.5.1.jar:/Users/sahibyar/.m2/repository/net/sf/saxon/saxon-xpath/8.7/saxon-xpath-8.7.jar:/Users/sahibyar/.m2/repository/net/sf/saxon/saxon-dom/8.7/saxon-dom-8.7.jar main
Exception in thread "main" java.lang.RuntimeException:  Trying XBeans path engine... Trying XQRL... Trying XDK... Trying delegated path engine... FAILED on declare namespace v='urn:schemas-microsoft-com:vml' data(//v:shape[contains(@id,'PowerPlusWaterMarkObject')]/v:textpath/@string)
    at org.apache.xmlbeans.impl.store.Path.getCompiledPath(Path.java:217)
    at org.apache.xmlbeans.impl.store.Path.getCompiledPath(Path.java:143)
    at org.apache.xmlbeans.impl.store.Cursor._selectPath(Cursor.java:902)
    at org.apache.xmlbeans.impl.store.Cursor.selectPath(Cursor.java:2634)
    at org.apache.xmlbeans.impl.values.XmlObjectBase.selectPath(XmlObjectBase.java:476)
    at org.apache.xmlbeans.impl.values.XmlObjectBase.selectPath(XmlObjectBase.java:460)
    at main.main(main.java:14)

Process finished with exit code 1

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>test-project</artifactId>
    <version>1.0-SNAPSHOT</version>
    <dependencies>
        <dependency>
            <groupId>org.apache.xmlbeans</groupId>
            <artifactId>xmlbeans</artifactId>
            <version>3.1.0</version>
        </dependency>
    </dependencies>

    <properties>
        <maven.compiler.source>11</maven.compiler.source>
        <maven.compiler.target>11</maven.compiler.target>
    </properties>

</project>

uj5u.com熱心網友回復：

XPath 解決后，我的問題。

final var xpathFilter = "*//v:shape/v:textpath/@string"

uj5u.com熱心網友回復：

declare namespace 可以在 XQuery 中完成，但不能在 XPath 中完成，因此要么使用 XQuery 處理器，如 BaseX 或 Saxon 10 或 9，要么研究您選擇的 XPath 處理器的 API，對于 XPath，通常有一種 API 方法將前綴系結到命名空間 URI，以便您可以在 XPath 運算式中使用前綴。

uj5u.com熱心網友回復：

默認情況下，XMLBeans 不支持復雜的 XPath，包括data()方法和謂詞過濾器等。為了支持這些特性，它依賴于Saxon存在于類路徑中。

對于XMLBeans 3.xx，我們需要手動下載Saxon 9.0.0.4j并將其添加到類路徑

對于XMLBeans 5.xx (Latest)，我們需要Saxon-HE 10.x它，我們可以直接將它添加到我們的 pom 檔案中，如下所示

<dependencies>
    <dependency>
        <groupId>org.apache.xmlbeans</groupId>
        <artifactId>xmlbeans</artifactId>
        <version>5.0.1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-core</artifactId>
        <version>2.14.1</version>
    </dependency>
    <dependency>
        <groupId>net.sf.saxon</groupId>
        <artifactId>Saxon-HE</artifactId>
        <version>10.6</version>
    </dependency>
</dependencies>

來源：https : //xmlbeans.apache.org/documentation/conInstallGuide.html

其次，我們需要在決議之前手動或在代碼中替換根<xml-fragment>開始和結束標記，例如使用其他標記名稱，<root>因為否則 XMLBeans 會將其決議為document fragment根節點模式型別而不是document型別和帶有謂詞的 XPaths不會作業。

最后，假設我們已經添加并處理了 Saxon<xml-fragment/>標簽。要將CONFIDENTIAL值作為輸出，我們只需要將結果轉換為SimpleValue并呼叫getStringValue()它。

這是修改后的

import org.apache.xmlbeans.SimpleValue;
import org.apache.xmlbeans.XmlException;
import org.apache.xmlbeans.XmlObject;
import java.io.File;
import java.io.IOException;

public class main {
    public static void main(String[] args) {
        File file = new File("test.xml");
        try {
            XmlObject xoobj = XmlObject.Factory.parse(file);
            var declareNameSpaces = "declare namespace v='urn:schemas-microsoft-com:vml' ";
            final String xpathFilter = "data(//v:shape[contains(@id,'PowerPlusWaterMarkObject')]/v:textpath/@string)";

            XmlObject[] arr = xoobj.selectPath(declareNameSpaces   xpathFilter);
            
            //Cast to SimpleValue
            SimpleValue result = (SimpleValue) arr[0];
            System.out.println(result.getStringValue());

        } catch (XmlException | IOException ex) {
            System.out.println(ex);
        }
    }
}

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