具体来说，我希望上传一个扩展名为 .xls 的文件
我有一个项目试图这样做，但存在以下错误
E/AndroidRuntime: FATAL EXCEPTION: Thread-6
Process: com.example.excelpromodel, PID: 12651
java.lang.NoClassDefFoundError: Failed resolution of: Lorg/apache/http/client/methods/HttpPut;
at com.dropbox.client2.DropboxAPI.putFileRequest(DropboxAPI.java:2390)
at com.dropbox.client2.DropboxAPI.putFileOverwriteRequest(DropboxAPI.java:1760)
at com.dropbox.client2.DropboxAPI.putFileOverwrite(DropboxAPI.java:1726)
at com.example.excelpromodel.SQLite2ExcelActivity$4.run(SQLite2ExcelActivity.java:267)
at java.lang.Thread.run(Thread.java:764)
Caused by: java.lang.ClassNotFoundException: Didn't find class "org.apache.http.client.methods.HttpPut" on path: DexPathList[[zip file "/data/app/com.example.excelpromodel-pu6SR7F9dUiyu9bWnHwX8w==/base.apk"],nativeLibraryDirectories=[/data/app/com.example.excelpromodel-pu6SR7F9dUiyu9bWnHwX8w==/lib/arm, /system/lib, /system/vendor/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:134)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at com.dropbox.client2.DropboxAPI.putFileRequest(DropboxAPI.java:2390)
at com.dropbox.client2.DropboxAPI.putFileOverwriteRequest(DropboxAPI.java:1760)
at com.dropbox.client2.DropboxAPI.putFileOverwrite(DropboxAPI.java:1726)
at com.example.excelpromodel.SQLite2ExcelActivity$4.run(SQLite2ExcelActivity.java:267)
at java.lang.Thread.run(Thread.java:764)
我的代码是：
public class SQLite2ExcelActivity extends AppCompatActivity {
public static Button button1;
public static String path = Environment.getExternalStorageDirectory().getPath() + "/Backup/";
public static File Dir = new File(path);
public void onClickBut1(View v) {
UploadToDropboxFromPath(path + "test.txt", "excel/test.txt");
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sqlite_2_xl);
button1 = findViewById(R.id.button1);
initViews();
AndroidAuthSession session = buildSession();
dropboxAPI = new DropboxAPI<AndroidAuthSession>(session);
}
static DropboxAPI<AndroidAuthSession> dropboxAPI;
private static final String APP_KEY = "";
private static final String APP_SECRET = "";
private static final String ACCESSTOKEN = "";
private DropboxAPI.UploadRequest request;
private AndroidAuthSession buildSession()
{
AppKeyPair appKeyPair = new AppKeyPair(APP_KEY, APP_SECRET);
AndroidAuthSession session = new AndroidAuthSession(appKeyPair);
session.setOAuth2AccessToken(ACCESSTOKEN);
return session;
}
static final int UploadFromSelectApp = 9501;
static final int UploadFromFilemanager = 9502;
public static String DropboxUploadPathFrom = "";
public static String DropboxUploadName = "";
public static String DropboxDownloadPathFrom = "";
public static String DropboxDownloadPathTo = "";
private void UploadToDropboxFromPath (String uploadPathFrom, String uploadPathTo)
{
Toast.makeText(getApplicationContext(), "Upload file ...", Toast.LENGTH_SHORT).show();
final String uploadPathF = uploadPathFrom;
final String uploadPathT = uploadPathTo;
Thread th = new Thread(new Runnable()
{
public void run()
{
File tmpFile = null;
try
{
tmpFile = new File(uploadPathF);
}
catch (Exception e) {e.printStackTrace();}
FileInputStream fis = null;
try
{
fis = new FileInputStream(tmpFile);
}
catch (FileNotFoundException e) {e.printStackTrace();}
try
{
dropboxAPI.putFileOverwrite(uploadPathT, fis, tmpFile.length(), null);
}
catch (Exception e) {}
getMain().runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(), "File successfully uploaded.", Toast.LENGTH_SHORT).show();
}
});
}
});
th.start();
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent intent)
{
if (requestCode == UploadFromFilemanager)
{
final Uri currFileURI = intent.getData();
final String pathFrom = currFileURI.getPath();
Toast.makeText(getApplicationContext(), "Upload file ...", Toast.LENGTH_SHORT).show();
Thread th = new Thread(new Runnable()
{
public void run()
{
getMain().runOnUiThread(new Runnable()
{
@Override
public void run()
{
UploadToDropboxFromPath(pathFrom, "/db-test/" + DropboxUploadName + pathFrom.substring(pathFrom.lastIndexOf('.')));
Toast.makeText(getApplicationContext(), "File successfully uploaded.", Toast.LENGTH_SHORT).show();
}
});
}
});
th.start();
}...
}
public String getPath(Context context, Uri contentUri) {
Cursor cursor = null;
try {
String[] proj = { MediaStore.Images.Media.DATA, MediaStore.Video.Media.DATA, MediaStore.Audio.Media.DATA };
cursor = context.getContentResolver().query(contentUri, proj, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
String s = cursor.getString(column_index);
if(s!=null) {
cursor.close();
return s;
}
}
catch(Exception e){}
try {
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
cursor.moveToFirst();
String s = cursor.getString(column_index);
if(s!=null) {
cursor.close();
return s;
}
}
catch(Exception e){}
try {
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DATA);
cursor.moveToFirst();
String s = cursor.getString(column_index);
cursor.close();
return s;
}
finally {
if (cursor != null) {
cursor.close();
}
}
}
public SQLite2ExcelActivity getMain()
{
return this;
}
AndroidManifest..
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.excelpromodel">
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.dropbox.client2.android.AuthActivity"
android:configChanges="orientation|keyboard"
android:launchMode="singleTask" >
<intent-filter>
<data android:scheme="db-akg125xzg45a9gc" />
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.BROWSABLE"/>
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".SQLite2ExcelActivity"
android:label="@string/app_name"
android:theme="@style/AppTheme" />
<activity
android:name=".Excel2SQLiteActivity"
android:label="@string/app_name"
android:theme="@style/AppTheme" />
</application>
</manifest>
和依赖
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.0.2'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation 'com.google.android.material:material:1.0.0'
implementation 'com.ajts.androidmads.SQLite2Excel:library:1.0.4'
implementation 'com.ajts.androidmads.sqliteimpex:library:1.0.0'
implementation files('libs/dropbox-android-sdk-1.6.3.jar')
implementation files('libs/json_simple-1.1.jar')
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.2.0'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
使用单个按钮而不是从文件管理器获取“备份”路径中的 xls 文件并将其上传到 Dropbox。谢谢你们