I am trying to use the Docx4j library in order to read in the contents of Word files selected by the user (tried to follow the code in https://github.com/plutext/Docx4j4Android4) However, I receive the following error when I read in a MS Word file:
W/System.err: log4j:ERROR Could not parse url [jar:file:/data/app/com.example.diffcheckertest-8hLouozp5QPE6U8NaxyKYA==/base.apk!/log4j.xml].
javax.xml.parsers.ParserConfigurationException: No validating DocumentBuilder implementation available
at org.apache.harmony.xml.parsers.DocumentBuilderFactoryImpl.newDocumentBuilder(DocumentBuilderFactoryImpl.java:61)
...
Process 20716 terminated.
Caused by: java.lang.ClassNotFoundException: Didn't find class "org.eclipse.persistence.oxm.NamespacePrefixMapper" on path: DexPathList[[zip file "/data/app/com.example.diffcheckertest-8hLouozp5QPE6U8NaxyKYA==/base.apk"]
Below is the line of code in MainActivity.kt where I open the MS Word document and where the error occurs (I have imported the necessary utilities):
import android.app.Activity
import android.content.Intent
import android.os.Bundle
import android.view.View
import android.widget.Button
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import org.apache.commons.lang3.StringUtils;
import org.docx4j.openpackaging.packages.WordprocessingMLPackage;
import org.docx4j.openpackaging.parts.WordprocessingML.MainDocumentPart;
import java.io.BufferedReader
import java.io.InputStreamReader
class MainActivity : AppCompatActivity() {
private var READ_IN_FILE:Int = 2; // Request code used when reading in a file
// Asks a user to read in a file
private fun chooseFile(view: View) {
// Only the below specified mime types are allowed in the picker
var selectFile = Intent(Intent.ACTION_GET_CONTENT)
selectFile.type = "*/*"
selectFile = Intent.createChooser(selectFile, "Choose a file")
startActivityForResult(selectFile, READ_IN_FILE)
}
// After receiving a result for a launched activity...
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
if (requestCode == READ_IN_FILE) { // When a result has been received, check if it is the result for READ_IN_FILE
if (resultCode == Activity.RESULT_OK) { // heck if the operation to retrieve the Activity's result is successful
// Attempt to retrieve the file
try {
var uri = data?.data // Retrieve the file's resource locator
var document = WordprocessingMLPackage.load(uri?.let { contentResolver.openInputStream(it) });
//var documentPart: MainDocumentPart = document.getMainDocumentPart();
Toast.makeText(this, "DiffChecker successfully read in the file :D", Toast.LENGTH_SHORT).show()
} catch (e: Exception) { // If the app failed to attempt to retrieve the error file, throw an error alert
println("Exception: " + e.toString());
Toast.makeText(this, "Sorry, but there was an error reading in the file", Toast.LENGTH_SHORT).show()
}
}
}
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
findViewById<Button>(R.id.file1).setOnClickListener(::chooseFile);
}
}
Below is my build.gradle code (app-level):
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.diffcheckertest"
minSdkVersion 22
targetSdkVersion 29
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
packagingOptions {
exclude 'META-INF/DEPENDENCIES'
exclude 'META-INF/LICENSE'
exclude 'META-INF/LICENSE.txt'
exclude 'META-INF/license.txt'
exclude 'META-INF/NOTICE'
exclude 'META-INF/NOTICE.txt'
exclude 'META-INF/notice.txt'
exclude 'META-INF/ASL2.0'
exclude("META-INF/*.kotlin_module")
}
}
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'androidx.core:core-ktx:1.2.0'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test.ext:junit:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
implementation files('libs/activation.jar')
implementation files('libs/additionnal.jar')
implementation files('libs/awt-bastardised-17v8.jar')
implementation files('libs/istack-commons-runtime-3.0.4-SNAPSHOT.jar')
implementation files('libs/jaxb-core-2.3.0-SNAPSHOT-ANDROID.jar')
implementation files('libs/jaxb-runtime-2.3.0-SNAPSHOT-ANDROID.jar')
//implementation files('libs/commons-lang3-3.7.jar')
//implementation files('libs/commons-text-1.2.jar')
implementation 'javax.xml.stream:stax-api:1.0-2'
implementation 'com.fasterxml:aalto-xml:1.0.0'
implementation files('libs/docx4j-6.1.1-SNAPSHOT-shaded.jar')
}
Build is my build.gradle code (project-level):
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
ext.kotlin_version = '1.3.61'
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.5.2'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
How did your project work without the javax.xml.bind:jaxb-api:2.2.12 dependency? It should throw java.lang.NoClassDefFoundError: Failed resolution of: Ljavax/xml/bind/JAXBContext; at the first place.
Android does not support JAXB out of the box, and you must add the dependency explicitly.
implementation 'javax.xml.bind:jaxb-api:2.2.12'
Instead of trying your gradle settings I decided to create a new project and start everything from scratch. Fortunately, I could run and load any docx files without issues.
Please download my sample repository and try in your system.