ICode9
精准搜索请尝试： 精确搜索
首页
编程语言>
数据库
系统相关
互联网
其他分享
Python
Java
JavaScript
android
PHP
首页 > 编程语言> 文章详细

java – 使用Parse和Facebook的Cla​​ssNotFoundException

2019-08-29 21:23:06  阅读：172  来源： 互联网

标签：parse-platform android java facebook jar


我希望你能帮助我解决我面临的问题.我正在尝试使用Parse将Facebook登录集成到我的应用程序中,当我调用该方法时,我收到ClassNotFoundException错误

 ParseFacebookUtils.logInWithReadPermissionsInBackground(LoginActivity.this, permissions, new LogInCallback()

错误堆栈跟踪：

05-15 10:36:00.749    3936-3936/kstr14.tipper E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: kstr14.tipper, PID: 3936
java.lang.IllegalStateException: Could not execute method of the activity
        at android.view.View$1.onClick(View.java:4007)
        at android.view.View.performClick(View.java:4756)
        at android.view.View$PerformClick.run(View.java:19749)
        at android.os.Handler.handleCallback(Handler.java:739)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:135)
        at android.app.ActivityThread.main(ActivityThread.java:5221)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:372)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
 Caused by: java.lang.reflect.InvocationTargetException
        at java.lang.reflect.Method.invoke(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:372)
        at android.view.View$1.onClick(View.java:4002)
        at android.view.View.performClick(View.java:4756)
        at android.view.View$PerformClick.run(View.java:19749)
        at android.os.Handler.handleCallback(Handler.java:739)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:135)
        at android.app.ActivityThread.main(ActivityThread.java:5221)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:372)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
 Caused by: java.lang.NoClassDefFoundError: Failed resolution of: Lcom/parse/ParseTaskUtils;
        at com.parse.ParseFacebookUtils.logInWithReadPermissionsInBackground(ParseFacebookUtils.java:173)
        at kstr14.tipper.Activities.LoginActivity.facebookLoginPressed(LoginActivity.java:170)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:372)
        at android.view.View$1.onClick(View.java:4002)
        at android.view.View.performClick(View.java:4756)
        at android.view.View$PerformClick.run(View.java:19749)
        at android.os.Handler.handleCallback(Handler.java:739)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:135)
        at android.app.ActivityThread.main(ActivityThread.java:5221)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:372)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
 Caused by: java.lang.ClassNotFoundException: Didn't find class "com.parse.ParseTaskUtils" on path: DexPathList[[zip file "/data/app/kstr14.tipper-1/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
        at com.parse.ParseFacebookUtils.logInWithReadPermissionsInBackground(ParseFacebookUtils.java:173)
        at kstr14.tipper.Activities.LoginActivity.facebookLoginPressed(LoginActivity.java:170)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:372)
        at android.view.View$1.onClick(View.java:4002)
        at android.view.View.performClick(View.java:4756)
        at android.view.View$PerformClick.run(View.java:19749)
        at android.os.Handler.handleCallback(Handler.java:739)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:135)
        at android.app.ActivityThread.main(ActivityThread.java:5221)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:372)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Suppressed: java.lang.ClassNotFoundException: com.parse.ParseTaskUtils
        at java.lang.Class.classForName(Native Method)
        at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
        at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
        ... 16 more
 Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available

我的lib文件夹中有以下jar文件：
解析-1.9.1.jar
javax.mail.jar
螺栓,Android的1.2.0.jar
ParseFacebookUtilsV4-1.9.2.jar

我已经尝试了build.gradle文件的依赖项部分的各种各样的东西,因为我怀疑这个错误是由于某些库没有正确包含,但我尝试过的都没有.我已经尝试了不同的方法来指定编译jar文件以及以不同的顺序指定jar.
目前我的build.gradle文件如下所示：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.2"
    defaultConfig {
        applicationId "kstr14.tipper"
        minSdkVersion 21
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        debug {
            debuggable true
        }
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'),     'proguard-rules.pro'
        }
    }
    productFlavors {
    }
}

repositories {
    mavenCentral()
}

dependencies {
    compile fileTree(include: ['*.jar'] ,dir: 'libs')
    compile files('libs/bolts-android-1.2.0.jar')
    compile 'com.parse.bolts:bolts-android:1.2.0'
    compile files('libs/Parse-1.9.1.jar')
    compile files('libs/ParseFacebookUtilsV4-1.9.2.jar')
    compile files('libs/javax.mail.jar')
    compile 'com.android.support:appcompat-v7:22.0.0'
    compile 'com.facebook.android:facebook-android-sdk:4.0.0'
    compile 'com.google.android.gms:play-services:7.0.0'
}

有人有什么建议吗？

哦,顺便说一句,当我的应用程序由于错误而崩溃时,我按OK,然后Facebook登录屏幕显示..所以我认为facebook jar正在被导入正常,问题在Parse罐子里面.但是,在我尝试集成Facebook之前,我一直在使用Pars jar,它运行得很好.我在导入Facebook jar的同时导入了螺栓罐,因为我读到了必要的地方,所以它可能是螺栓罐的问题？

编辑：为LoginActivity添加了代码：

package kstr14.tipper.Activities;

import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.widget.EditText;
import android.widget.Toast;

import com.facebook.FacebookSdk;
import com.parse.LogInCallback;
import com.parse.ParseException;
import com.parse.ParseFacebookUtils;
import com.parse.ParseObject;
import com.parse.ParseUser;
import com.parse.SignUpCallback;

import java.util.ArrayList;
import java.util.List;

import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;

import kstr14.tipper.Data.Category;
import kstr14.tipper.Data.Group;
import kstr14.tipper.Data.Tip;
import kstr14.tipper.R;


public class LoginActivity extends ActionBarActivity {

// UI elements for default login fragment
private EditText usernameDefaultLogin;
private EditText passwordDefaultLogin;

// UI elements for sign up fragment
private EditText usernameSignup;
private EditText emailSignup;
private EditText passwordSignup;
private EditText reenterPasswordSignup;


@Override
protected void onCreate(Bundle savedInstanceState) {
    getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_login);
    getSupportActionBar().hide();

    // initalize facebook
    FacebookSdk.sdkInitialize(getApplicationContext());

    // Initialize Parse
    ParseObject.registerSubclass(Tip.class);
    ParseObject.registerSubclass(Category.class);
    ParseObject.registerSubclass(Group.class);
    ParseObject.registerSubclass(ParseUser.class);

    // check cache for current user - if found go directly to MainActivity
    ParseUser currentUser = ParseUser.getCurrentUser();
    if(currentUser != null) {
        Intent intent = new Intent(getApplicationContext(), MainActivity.class);
        startActivity(intent);
    }

    // otherwise set fragment to the default login screen
    DefaultLoginFragment defaultLoginFragment = new DefaultLoginFragment();
    getSupportFragmentManager().beginTransaction()
            .add(R.id.fragment_container, defaultLoginFragment).commit();
}

// Required for making Facebook login work
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    ParseFacebookUtils.onActivityResult(requestCode, resultCode, data);
}

/**
 * Method called when sign up button pressed on the default login fragment
 * Switches the default login fragment with a sign up fragment
 * @param view
 */
public void defaultSignUpPressed(View view) {
    SignUpFragment signUpFragment = new SignUpFragment();
    FragmentManager fragmentManager = getSupportFragmentManager();
    FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();

    // Replace the default login fragment with the sign up fragment,
    // and add the transaction to the back stack so the user can navigate back
    fragmentTransaction.replace(R.id.fragment_container, signUpFragment);
    fragmentTransaction.addToBackStack(null);
    fragmentTransaction.commit();
}

/**
 * Method called when login button pressed on the default login fragment
 * Attempts to log in the user, if successful goes to MainActivity
 * @param view
 */
public void defaultLoginPressed(View view) {
    // initialize UI elements for default login fragment
    usernameDefaultLogin = (EditText) findViewById(R.id.usernameDefaultLoginFragment);
    passwordDefaultLogin = (EditText) findViewById(R.id.passwordDefaultLoginFragment);

    // fetch input and attempt login
    String username = usernameDefaultLogin.getText().toString();
    String password = passwordDefaultLogin.getText().toString();
    ParseUser.logInInBackground(username, password, new LogInCallback() {
        public void done(ParseUser user, ParseException e) {
             if (user != null) {
                  Intent intent = new Intent(getApplicationContext(), MainActivity.class);
                  startActivity(intent);
             } else {
                  Toast.makeText(getApplicationContext(), "Login failed.", Toast.LENGTH_SHORT).show();
             }
        }
    });
}

/**
 * Method called when sign up button pressed in sign up fragment
 * Attempts to register the user, if successful goes to MainActivity
 * @param view
 */
public void signupPressed(View view) {
    // UI elements for sign up fragment
    usernameSignup = (EditText) findViewById(R.id.usernameSignupFragment);
    emailSignup = (EditText) findViewById(R.id.emailSignupFragment);
    passwordSignup = (EditText) findViewById(R.id.passwordSignupFragment);
    reenterPasswordSignup = (EditText) findViewById(R.id.reenterPasswordSignupFragment);

    String username = usernameSignup.getText().toString();
    String email = emailSignup.getText().toString();
    String password1 = passwordSignup.getText().toString();
    String password2 = reenterPasswordSignup.getText().toString();

    // validate passwords and email
    if(!validatePassword(password1, password2)) {
        Toast.makeText(getApplicationContext(), "Passwords do not match, try again.", Toast.LENGTH_SHORT).show();
    } else if (!validateEmail(email)) {
        Toast.makeText(getApplicationContext(), "Please enter a valid email.", Toast.LENGTH_SHORT).show();
    } else {
        ParseUser user = new ParseUser();
        user.setUsername(username);
        user.setPassword(password1);
        user.setEmail(email);
        user.signUpInBackground(new SignUpCallback() {
            public void done(ParseException e) {
                if (e == null) {
                    Intent intent = new Intent(getApplicationContext(), MainActivity.class);
                    startActivity(intent);
                } else {
                    Toast.makeText(getApplicationContext(), "Sign up failed. Please try again.", Toast.LENGTH_SHORT).show();
                }
            }
        });
    }
}

public void facebookLoginPressed(View view) {
    List<String> permissions = new ArrayList<String>();
    permissions.add("public_profile");
    ParseFacebookUtils.logInWithReadPermissionsInBackground(LoginActivity.this, permissions, new LogInCallback() {
        @Override
        public void done(ParseUser user, ParseException err) {
            if (user == null) {
                Log.d("MyApp", "Uh oh. The user cancelled the Facebook login.");
            } else if (user.isNew()) {
                Log.d("MyApp", "User signed up and logged in through Facebook!");
            } else {
                Log.d("MyApp", "User logged in through Facebook!");
            }
        }
    });
}

/**
 * Validates that two passwords are equal
 * @param password1
 * @param password2
 * @return
 */
public boolean validatePassword(String password1, String password2) {
    if(password1.equals(password2)) return true;
    else return false;
    }

/**
 * Validates the structure of an email address
 * @param email
 * @return
 */
public boolean validateEmail(String email) {
    boolean result = true;
    try {
        InternetAddress internetAddress = new InternetAddress(email);
        internetAddress.validate();
    } catch (AddressException e) {
        e.printStackTrace();
        result = false;
    }
    return result;
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.menu_login, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    int id = item.getItemId();

    if (id == R.id.action_settings) {
        return true;
    }

    return super.onOptionsItemSelected(item);
}
}

解决方法:

我实际上遇到了同样的问题.希望我可以为搜索此问题的任何人节省很多麻烦.答案是不使用较旧的SDK.实际上你需要做的就是确保你使用的是相同版本的Parse和ParseFacebookUtils.看看上面的gradle文件

compile 'com.parse.bolts:bolts-android:1.2.0'
compile files('libs/Parse-1.9.1.jar')
compile files('libs/ParseFacebookUtilsV4-1.9.2.jar')

您使用的是Parse-1.9.1和ParseFacebookUtilsV4-1.9.2.我实际上犯了同样的错误.我从另一个项目中删除了Parse-1.9.1并再次下载了SDK以将FacebookUtils库拉出来.

标签：parse-platform,android,java,facebook,jar
来源： https://codeday.me/bug/20190829/1763859.html

本站声明： 1. iCode9 技术分享网（下文简称本站）提供的所有内容，仅供技术学习、探讨和分享；
2. 关于本站的所有留言、评论、转载及引用，纯属内容发起人的个人观点，与本站观点和立场无关；
3. 关于本站的所有言论和文字，纯属内容发起人的个人观点，与本站观点和立场无关；
4. 本站文章均是网友提供，不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属；如您发现该文章侵犯了您的权益，可联系我们第一时间进行删除；
5. 本站为非盈利性的个人网站，所有内容不会用来进行牟利，也不会利用任何形式的广告来间接获益，纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。

关于我们 | 联系我们 | 留言反馈

专注分享技术，共同学习，共同进步。侵权联系[81616952@qq.com]

Copyright (C)ICode9.com, All Rights Reserved.

ICode9版权所有