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社区首页 >问答首页 >读取Microsoft文档时出现的Android错误:找不到提供程序com.bea.xml.stream.EventFactory

读取Microsoft文档时出现的Android错误:找不到提供程序com.bea.xml.stream.EventFactory
EN

Stack Overflow用户
提问于 2020-01-30 23:26:51
回答 3查看 1.2K关注 0票数 3

我试图在我的Android应用程序中使用Apache,这样我就可以读取MS文件。我正在集成POIA库,它允许在Android (https://github.com/SUPERCILEX/poi-android)上使用Apache。但是,当我运行代码并在Word文件中读取时,会收到以下错误:

未找到org.apache.poi.javax.xml.stream.FactoryConfigurationError:提供程序

com.bea.xml.stream.EventFactory

下面是我的代码(我收到了第一行的错误):

代码语言:javascript
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var document = XWPFDocument(uri?.let { contentResolver.openInputStream(it) });
var extractor = XWPFWordExtractor(document);
var documentText = extractor.text; // Retrieve the document's text

下面是我的等级(项目级别):

代码语言:javascript
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// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    ext.kotlin_version = '1.3.60'
    repositories {
        google()
        jcenter()

    }
    ext {
        poiVersion = '3.17'
    }
    dependencies {
        classpath 'com.android.tools:r8:1.4.93'
        classpath 'com.android.tools.build:gradle:3.4.2'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        maven { url 'https://jitpack.io' }
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

下面是我的等级(应用级):

代码语言:javascript
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apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.2"
    defaultConfig {
        applicationId "com.example.diffchecker"
        minSdkVersion 21
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'androidx.core:core-ktx:1.1.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    // For developers using the Android Support Library
    implementation 'pub.devrel:easypermissions:2.0.1'
    implementation 'com.google.android.gms:play-services-ads:18.3.0'
    implementation "com.github.SUPERCILEX.poi-android:poi:$poiVersion"
}

下面是完整的堆栈跟踪:

代码语言:javascript
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E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.diffchecker, PID: 2292
    org.apache.poi.javax.xml.stream.FactoryConfigurationError: Provider com.bea.xml.stream.EventFactory not found
        at org.apache.poi.javax.xml.stream.FactoryFinder.newInstance(FactoryFinder.java:72)
        at org.apache.poi.javax.xml.stream.FactoryFinder.find(FactoryFinder.java:178)
        at org.apache.poi.javax.xml.stream.FactoryFinder.find(FactoryFinder.java:92)
        at org.apache.poi.javax.xml.stream.XMLEventFactory.newInstance(XMLEventFactory.java:30)
        at org.apache.poi.openxml4j.opc.internal.marshallers.PackagePropertiesMarshaller.<clinit>(PackagePropertiesMarshaller.java:41)
        at org.apache.poi.openxml4j.opc.OPCPackage.init(OPCPackage.java:161)
        at org.apache.poi.openxml4j.opc.OPCPackage.<init>(OPCPackage.java:141)
        at org.apache.poi.openxml4j.opc.ZipPackage.<init>(ZipPackage.java:97)
        at org.apache.poi.openxml4j.opc.OPCPackage.open(OPCPackage.java:324)
        at org.apache.poi.util.PackageHelper.open(PackageHelper.java:37)
        at org.apache.poi.xwpf.usermodel.XWPFDocument.<init>(XWPFDocument.java:116)
        at com.example.diffchecker.MainActivity.onActivityResult(MainActivity.kt:249)
        at android.app.Activity.dispatchActivityResult(Activity.java:7759)
        at android.app.ActivityThread.deliverResults(ActivityThread.java:4598)
        at android.app.ActivityThread.handleSendResult(ActivityThread.java:4647)
        at android.app.servertransaction.ActivityResultItem.execute(ActivityResultItem.java:49)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1948)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:7045)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:964)
EN

Stack Overflow用户

发布于 2020-02-04 18:28:52

这是Android上的一个常见问题,因为不支持这个Java类:

找不到

提供程序com.bea.xml.stream.EventFactory

您必须添加com.fasterxml:aalto-xml并排除stax2-api-4.1.jar

代码语言:javascript
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复制
// implementation "com.fasterxml:aalto-xml:1.1.0"
implementation ("com.github.SUPERCILEX.poi-android:poi:3.17" {
    exclude group: "org.codehaus.woodstox", module: "stax2-api"
}

然后更新系统属性:

代码语言:javascript
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init {
    System.setProperty("org.apache.poi.javax.xml.stream.XMLInputFactory", "com.fasterxml.aalto.stax.InputFactoryImpl")
    System.setProperty("org.apache.poi.javax.xml.stream.XMLOutputFactory", "com.fasterxml.aalto.stax.OutputFactoryImpl")
    System.setProperty("org.apache.poi.javax.xml.stream.XMLEventFactory", "com.fasterxml.aalto.stax.EventFactoryImpl")
}

在Java中,这将是static关键字。在科特林,关于init,还应该足够早。

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页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接:

https://stackoverflow.com/questions/59996015

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