本文的目的是介绍Java9：java.lang.ClassNotFoundException：SpringBoot应用程序中的java.sql.SQLException的详细情况，我们将通过专业的研究
本文的目的是介绍Java 9：java.lang.ClassNotFoundException：Spring Boot应用程序中的java.sql.SQLException的详细情况，我们将通过专业的研究、有关数据的分析等多种方式，同时也不会遗漏关于android – java.lang.RuntimeException：无法实例化活动ComponentInfo / java.lang.ClassNotFoundException、android – java.lang.RuntimeException：无法实例化活动ComponentInfo … java.lang.ClassNotFoundException、Android应用程序上的Java运行时异常：java.lang.ClassNotFoundException、Caused by: java.lang.ClassNotFoundException: com.google.protobuf.ServiceException的知识。
本文目录一览：- Java 9：java.lang.ClassNotFoundException：Spring Boot应用程序中的java.sql.SQLException
- android – java.lang.RuntimeException：无法实例化活动ComponentInfo / java.lang.ClassNotFoundException
- android – java.lang.RuntimeException：无法实例化活动ComponentInfo … java.lang.ClassNotFoundException
- Android应用程序上的Java运行时异常：java.lang.ClassNotFoundException
- Caused by: java.lang.ClassNotFoundException: com.google.protobuf.ServiceException
Java 9：java.lang.ClassNotFoundException：Spring Boot应用程序中的java.sql.SQLException
这个应用程式怎么了？我认为类路径jar和模块jar的混合是有效的。对于所有没有显式module-info的jar都是自动模块？当我删除module-
info.java时，它可以工作。因为在这种情况下，IDEA使用类路径。
Java（TM）SE运行时环境（内部版本9 + 176）
IntelliJ IDEA 2017.1.4版
module-info.java
module test { requires spring.boot.autoconfigure; requires spring.boot;}App.java
package com.foo.test;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplicationpublic class App { public static void main(String[] args) { SpringApplication.run(App.class, args); }}pom.xml
<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>com.foo.test</groupId> <artifactId>test</artifactId> <version>1.0-SNAPSHOT</version> <packaging>jar</packaging> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.0.M2</version> </parent> <name>test</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.9</maven.compiler.source> <maven.compiler.target>1.9</maven.compiler.target> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> </dependencies> <repositories> <repository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>https://repo.spring.io/libs-milestone</url> <snapshots> <enabled>false</enabled> </snapshots> </repository> </repositories></project>线程“主”中的异常java.lang.IllegalArgumentException：无法实例化接口org.springframework.context.ApplicationContextInitializer：org.springframework.boot.context.ConfigurationWarningsApplicationContextInitializer位于spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication在spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.getSpringFactoriesInstances（SpringApplication.java:418）在spring.boot@2.0.0.M2/org.springframework的.createSpringFactoriesInstances（SpringApplication.java:439）在spring.boot@2.0.0.M2/处的.boot.SpringApplication.getSpringFactoriesInstances（SpringApplication.java:409）/在spring.boot@2.0.0.M2/处的org.springframework.boot.SpringApplication。（SpringApplication.java:266）
org.springframework.boot.SpringApplication。（SpringApplication.java：247）在spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.run（SpringApplication.java:1245）在spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.run（在test
/ com.foo.test.App.main（App.java:10）处的SpringApplication.java:1233）由以下原因引起：
java.lang.NoClassDefFoundError：
在spring.beans@5.0.0.RC2/org.springframework.beans.BeanUtils.instantiateClass（BeanUtils.java:145）上的
java / sql / SQLException
在spring.boot@2.0.0.M2/org上.springframework.boot.SpringApplication.createSpringFactoriesInstances（SpringApplication.java:435）…还有7个原因：java.lang.ClassNotFoundException：java.base
/
jdk.internal.loader.BuiltinClassLoader.loadClass（BuiltinClassLoader）上的java.sql.SQLException
.java：582），位于java.base / jdk.internal.loader.ClassLoaders $
AppClassLoader.loadClass（ClassLoaders.java:185），位于java.base /
java.lang.ClassLoader.loadClass（ClassLoader.java:496）…另外9个
答案1
小编典典我假设spring.boot是一个自动模块。自动模块不会声明其依赖关系，因此您必须--add-modules确保所需要的任何显式模块都已解决。如果spring.boot是一个显式模块，那么我认为它会requiresjava.sql并且您不会遇到此问题。
android – java.lang.RuntimeException：无法实例化活动ComponentInfo / java.lang.ClassNotFoundException
我忍不住注意到我的MainActivity图标在树的左上角有一个灰色的十字架.
logcat的：
E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{carpedujourproductions.quickpronote/carpedujourproductions.quickpronote.MainActivity}: java.lang.classNotFoundException: Didn't find class "carpedujourproductions.quickpronote.MainActivity" on path: DexPathList[[zip file "/data/app/carpedujourproductions.quickpronote-2.apk"],nativeLibraryDirectories=[/data/app-lib/carpedujourproductions.quickpronote-2,/vendor/lib,/system/lib]]
at android.app.ActivityThread.performlaunchActivity(ActivityThread.java:2157)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2281)
at android.app.ActivityThread.access$600(ActivityThread.java:148)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1263)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5124)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:110)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.classNotFoundException: Didn't find class "carpedujourproductions.quickpronote.MainActivity" on path: DexPathList[[zip file "/data/app/carpedujourproductions.quickpronote-2.apk"],/system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:53)
at java.lang.classLoader.loadClass(ClassLoader.java:501)
at java.lang.classLoader.loadClass(ClassLoader.java:461)
at android.app.Instrumentation.newActivity(Instrumentation.java:1061)
at android.app.ActivityThread.performlaunchActivity(ActivityThread.java:2148)
... 12 more
随意浏览AndroidManifest,MainActivity.java,FirstRun.java等代码here.
解决方法
<file url="file://$PROJECT_DIR$/src/carpedujourproductions/quickpronote/MainActivity.java" />
来自.idea / compiler.xml文件的excludeFromCompile部分(或者您可以从IDE设置执行此操作).
android – java.lang.RuntimeException：无法实例化活动ComponentInfo … java.lang.ClassNotFoundException
我有一个问题,我正在处理三天,我试图阅读不同的答案,但它没有帮助.
也有人可以帮助我！
我将Ancdroid应用程序作为客户端编写为一个安静的Web服务.我可以从数据库中获取数据而没有问题,但我的问题是我使用的2个活动来处理来自数据库的这个文件.
主要活动
public class MainActivity extends Activity {
private static final String SERVICE_URL = "http://10.0.2.2:8080/.....";
private static final String TAG = "AndroidRESTClientActivity";
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void retrieveSampleData(View vw) {
EditText idTxt = (EditText) findViewById(R.id.id_textfield);
String id = idTxt.getText().toString();
String sampleURL = SERVICE_URL +"daten/"+id ;
Log.d("getrespond()", "service calling");
String url =sampleURL;
RestClient client = new RestClient(url);
try{
client.Execute(RestClient.RequestMethod.GET,this.getApplicationContext());
}
catch (Exception e) {
String error = String.valueOf(e);
Log.d("**********client.Execute(RequestMethod.GET);***********",error);
}
try {
if(client.getResponseCode() == 200) {
Log.d("Response is 200", String.valueOf(client.getResponse().length()));
System.out.println(this.getFilesDir().getPath().toString());
File daten= client.getResponse();
System.out.println(daten.getName());
Toast.makeText(this.getApplicationContext(), "Responce is "+String.valueOf(client.getResponseCode()), 2000).show();
} else {
String error = String.valueOf(client.getResponse());
Log.d("Response*********** not 200 ************", String.valueOf(client.getResponse()));
}
}catch (Exception e) {
e.printstacktrace();
Log.d("EXCEPTIONI IS 3", e.toString());
// Todo: handle exception
}
startActivity(new Intent("android.intent.action.LINEGRAPH"));
我从主要开始的另一项活动：
public class lineGraph extends Activity{
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_line_graph);
}
@Override
protected void onResume() {
super.onResume();
if (mChartView == null) {
LinearLayout layout = (LinearLayout) findViewById(R.id.chart);
try {
mChartView = ChartFactory.getLineChartView(this, getDemoDataset(),
getDemoRenderer());
} catch (IOException e) {
// Todo Auto-generated catch block
e.printstacktrace();
}
layout.addView(mChartView, new LayoutParams
(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
} else {
mChartView.repaint();
}
}
的Manifest.xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.praktikum.androidcrestclient"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" >
</uses-permission>
<uses-permission android:name="android.permission.INTERNET" >
</uses-permission>
<uses-permission android:name="android.permission.WRITE_INTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.praktikum.androidcrestclient.LineGraph"
android:label="@string/title_activity_line_graph" >
<intent-filter>
<action android:name="android.intent.action.LINEGRAPH" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity android:name="org.achartengine.GraphicalActivity"/>
</application>
</manifest>
在这里我的LogCat
10-08 09:23:10.140: D/AndroidRuntime(4706): Shutting down VM
10-08 09:23:10.140: W/dalvikvm(4706): threadid=1: thread exiting with uncaught exception (group=0x40015560)
10-08 09:23:10.161: E/AndroidRuntime(4706): FATAL EXCEPTION: main
10-08 09:23:10.161: E/AndroidRuntime(4706): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.praktikum.androidcrestclient/com.praktikum.androidcrestclient.LineGraph}: java.lang.classNotFoundException: com.praktikum.androidcrestclient.LineGraph in loader dalvik.system.PathClassLoader[/data/app/com.praktikum.androidcrestclient-1.apk]
10-08 09:23:10.161: E/AndroidRuntime(4706): at android.app.ActivityThread.performlaunchActivity(ActivityThread.java:1569)
10-08 09:23:10.161: E/AndroidRuntime(4706): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
10-08 09:23:10.161: E/AndroidRuntime(4706): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
10-08 09:23:10.161: E/AndroidRuntime(4706): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
10-08 09:23:10.161: E/AndroidRuntime(4706): at android.os.Handler.dispatchMessage(Handler.java:99)
10-08 09:23:10.161: E/AndroidRuntime(4706): at android.os.Looper.loop(Looper.java:123)
10-08 09:23:10.161: E/AndroidRuntime(4706): at android.app.ActivityThread.main(ActivityThread.java:3683)
10-08 09:23:10.161: E/AndroidRuntime(4706): at java.lang.reflect.Method.invokeNative(Native Method)
10-08 09:23:10.161: E/AndroidRuntime(4706): at java.lang.reflect.Method.invoke(Method.java:507)
10-08 09:23:10.161: E/AndroidRuntime(4706): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
10-08 09:23:10.161: E/AndroidRuntime(4706): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
10-08 09:23:10.161: E/AndroidRuntime(4706): at dalvik.system.NativeStart.main(Native Method)
10-08 09:23:10.161: E/AndroidRuntime(4706): Caused by: java.lang.classNotFoundException: com.praktikum.androidcrestclient.LineGraph in loader dalvik.system.PathClassLoader[/data/app/com.praktikum.androidcrestclient-1.apk]
10-08 09:23:10.161: E/AndroidRuntime(4706): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
10-08 09:23:10.161: E/AndroidRuntime(4706): at java.lang.classLoader.loadClass(ClassLoader.java:551)
10-08 09:23:10.161: E/AndroidRuntime(4706): at java.lang.classLoader.loadClass(ClassLoader.java:511)
10-08 09:23:10.161: E/AndroidRuntime(4706): at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
10-08 09:23:10.161: E/AndroidRuntime(4706): at android.app.ActivityThread.performlaunchActivity(ActivityThread.java:1561)
10-08 09:23:10.161: E/AndroidRuntime(4706): ... 11 more
10-08 09:23:10.180: W/ActivityManager(89): Force finishing activity com.praktikum.androidcrestclient/.LineGraph
10-08 09:23:10.180: W/ActivityManager(89): Force finishing activity com.praktikum.androidcrestclient/.MainActivity
10-08 09:23:10.690: W/ActivityManager(89): Activity pause timeout for HistoryRecord{4094eea0 com.praktikum.androidcrestclient/.LineGraph}
10-08 09:23:12.330: I/Process(4706): Sending signal. PID: 4706 SIG: 9
10-08 09:23:12.350: I/ActivityManager(89): Process com.praktikum.androidcrestclient (pid 4706) has died.
10-08 09:23:12.360: E/Inputdispatcher(89): channel '4065ae98 com.praktikum.androidcrestclient/com.praktikum.androidcrestclient.MainActivity (server)' ~ Consumer closed input channel or an error occurred. events=0x8
10-08 09:23:12.360: E/Inputdispatcher(89): channel '4065ae98 com.praktikum.androidcrestclient/com.praktikum.androidcrestclient.MainActivity (server)' ~ Channel is unrecoverably broken and will be disposed!
10-08 09:23:12.490: I/WindowManager(89): WIN DEATH: Window{4065ae98 com.praktikum.androidcrestclient/com.praktikum.androidcrestclient.MainActivity paused=true}
10-08 09:23:12.500: I/WindowManager(89): WIN DEATH: Window{406c1140 Toast paused=false}
10-08 09:23:12.600: W/InputManagerService(89): Got remoteexception sending setActive(false) notification to pid 4706 uid 10034
10-08 09:23:12.660: E/Inputdispatcher(89): Received spurIoUs receive callback for unkNown input channel. fd=168, events=0x8
10-08 09:23:16.820: D/dalvikvm(396): GC_EXPLICIT freed 7K, 54% free 2537K/5511K, external 1625K/2137K, paused 43ms
10-08 09:23:21.626: W/ActivityManager(89): Activity destroy timeout for HistoryRecord{4094e768 com.praktikum.androidcrestclient/.MainActivity}
10-08 09:23:21.626: W/ActivityManager(89): Activity destroy timeout for HistoryRecord{4094eea0 com.praktikum.androidcrestclient/.LineGraph}
10-08 09:23:21.900: D/dalvikvm(299): GC_EXPLICIT freed 12K, 55% free 2589K/5703K, external 1625K/2137K, paused 73ms
10-08 09:23:26.950: D/dalvikvm(407): GC_EXPLICIT freed 4K, 55% free 2532K/5511K, external 1625K/2137K, paused 57ms
10-08 09:24:54.097: D/SntpClient(89): request time Failed: java.net.socketException: Address family not supported by protocol
10-08 09:29:54.106: D/SntpClient(89): request time Failed: java.net.socketException: Address family not supported by protocol
10-08 09:34:54.130: D/SntpClient(89): request time Failed: java.net.socketException: Address family not supported by protocol
你能帮我找一下为什么它找不到这个其他的活动.
谢谢
解决方法:
在此声明中将类的名称更改为“LineGraph”而不是“lineGraph”：
public class LineGraph extends Activity{
Android应用程序上的Java运行时异常：java.lang.ClassNotFoundException
如何解决Android应用程序上的Java运行时异常：java.lang.ClassNotFoundException？
背景：我有一个Xamarin Forms应用程序以及相应的iOS和Android应用程序。该应用程序实质上是一个简单的浏览器包装程序，可在其中显示网页。
自从最近一次更新以来，我们主要在Android 6.0、7.0和7.1版本上遇到了大量崩溃。下面是错误的堆栈跟踪。我尝试使用Android模拟器重现该错误，但到目前为止仍未成功。对此造成潜在影响的任何线索都受到高度赞赏
PS：：升级中的主要更改包括将目标android版本更改为Android 10（API级别29）。使用Android 9.0版进行编译
解决方法
暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！
如果你已经找到好的解决方法，欢迎将解决方案带上本链接一起发送给小编。
小编邮箱:dio#foxmail.com (将#修改为@）
Caused by: java.lang.ClassNotFoundException: com.google.protobuf.ServiceException
@杨桃兄弟 你好，想跟你请教个问题：
<dependency> <groupId>org.apache.hadoop</groupId> <artifactId>hadoop-client</artifactId> <version>2.7.2</version> <!-- <version>2.2.0</version>--> </dependency> <dependency> <groupId>org.apache.hadoop</groupId> <artifactId>hadoop-common</artifactId> <version>2.7.2</version> </dependency> <dependency> <groupId>org.apache.hadoop</groupId> <artifactId>hadoop-hdfs</artifactId> <version>2.7.2</version> </dependency> <dependency> <groupId>org.apache.hadoop</groupId> <artifactId>hadoop-mapreduce-client-core</artifactId> <version>2.7.2</version> </dependency>
我pom 文件里的，一直报这个错
关于Java 9：java.lang.ClassNotFoundException：Spring Boot应用程序中的java.sql.SQLException的问题就给大家分享到这里，感谢你花时间阅读本站内容，更多关于android – java.lang.RuntimeException：无法实例化活动ComponentInfo / java.lang.ClassNotFoundException、android – java.lang.RuntimeException：无法实例化活动ComponentInfo … java.lang.ClassNotFoundException、Android应用程序上的Java运行时异常：java.lang.ClassNotFoundException、Caused by: java.lang.ClassNotFoundException: com.google.protobuf.ServiceException等相关知识的信息别忘了在本站进行查找喔。
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