Android Studio中使用JUnit测试报错(ClassNotFoundException)

在Android Studio中编写测试类public class MyAppTest extends ActivityInstrumentationTestCase2报错:
Exception in thread "main" java.lang.NoClassDefFoundError: junit/textui/ResultPrinter
Caused by: java.lang.ClassNotFoundException: junit.textui.ResultPrinter
小的新手,求大神解答 T T

1个回答

没有junit/textui/ResultPrinter 这个class文件, 打开Project Structure - Modules -Dependencies,移除junit-4.7.jar试试

u013703034
Coffee_ljn 谢谢~~
大约 5 年之前 回复
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Spring整合Mybatis时junit控制台报错!

Spring配置文件applicationContext_common.xml: ``` <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd" default-autowire="byName"> <!--注解扫描 --> <context:component-scan base-package="com.liangsw"/> <!-- 配置数据源 --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"> <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"/> <property name="url" value="jdbc:oracle:thin:@localhost:1521:orcl"/> <property name="username" value="userscenter"/> <property name="password" value="userscenter"/> <!-- 连接池启动时的初始值 --> <property name="initialSize" value="3" /> <!-- 连接池的最大值 --> <property name="maxActive" value="300" /> <!-- 最大空闲值. --> <property name="maxIdle" value="2" /> <!-- 最小空闲值. --> <property name="minIdle" value="1" /> </bean> <!--Mybatis配置开始 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!--mybatis配置文件加载 --> <property name="configLocation" value="classpath:mybatis.cfg.xml"/> <!--mybatis映射文件加载 --> <property name="mapperLocations" value="classpath*:config/sqlmapper/*/*Mapper.xml"/> </bean> <!--Mybatis配置结束 --> </beans> ``` Junit控制台报错信息: ``` org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in file [E:\workspace\eclipse\usersCenter\usersCenter-common\target\classes\spring\applicationContext_common.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [mybatis.cfg.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. 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![图片说明](https://img-ask.csdn.net/upload/201512/30/1451486545_145982.jpg)错误:A problem occurred configuring project ':app'. > Could not download junit.jar (junit:junit:4.12) > Could not get resource 'https://jcenter.bintray.com/junit/junit/4.12/junit-4.12.jar'. > Could not GET 'https://jcenter.bintray.com/junit/junit/4.12/junit-4.12.jar'. > d29vzk4ow07wi7.cloudfront.net

mybatis 测试类junit报错,如何解决 mybatis 测试类junit报错,如何解决

package com.jiyun.mybaits.test; import java.io.IOException; import java.io.InputStream; import java.util.List; import org.apache.ibatis.io.Resources; import org.apache.ibatis.session.SqlSession; import org.apache.ibatis.session.SqlSessionFactory; import org.apache.ibatis.session.SqlSessionFactoryBuilder; import org.junit.Test; import com.jiyun.mybaits.pojo.User; public class JunitTest { @Test private void test1() throws IOException { // TODO Auto-generated method stub String resource = "SqlMapConfig.xml"; InputStream inputStream = Resources.getResourceAsStream(resource); SqlSessionFactory sessionFactory = new SqlSessionFactoryBuilder().build(inputStream); SqlSession openSession = sessionFactory.openSession(); List<User> userList = openSession.selectList("test.selectAllUser"); for (User user : userList) { System.out.println(user.getUsername() + "--" + user.getPassword() + "--" + user.getSex()); } openSession.close(); } ![图片说明](https://img-ask.csdn.net/upload/201708/10/1502360297_5263.jpg)

ssm框架下JUnit测试报错,跪求办法

严重: Caught exception while allowing TestExecutionListener [org.springframework.test.context.support.DependencyInjectionTestExecutionListener@3020ad] to prepare test instance [com.test.MapperTest@e8c7db] java.lang.IllegalStateException: Failed to load ApplicationContext at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124) at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:117) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83) at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:230) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:228) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:287) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:289) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:247) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in URL [file:/D:/Users/Administrator/Workspaces/MyEclipse%2010/crud/target/classes/applicationContext.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [mybatis_config.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: The setting mapUnderscoreToCase is not known. Make sure you spelled it correctly (case sensitive). at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:742) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:128) at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:60) at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.delegateLoading(AbstractDelegatingSmartContextLoader.java:108) at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.loadContext(AbstractDelegatingSmartContextLoader.java:251) at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98) at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116) ... 25 more Caused by: org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [mybatis_config.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: The setting mapUnderscoreToCase is not known. Make sure you spelled it correctly (case sensitive). at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:500) at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:380) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624) ... 40 more Caused by: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: The setting mapUnderscoreToCase is not known. Make sure you spelled it correctly (case sensitive). at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:120) at org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:98) at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:494) ... 43 more Caused by: org.apache.ibatis.builder.BuilderException: The setting mapUnderscoreToCase is not known. Make sure you spelled it correctly (case sensitive). at org.apache.ibatis.builder.xml.XMLConfigBuilder.settingsAsProperties(XMLConfigBuilder.java:133) at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:106) ... 45 more

swagger junit 冲突报错

错误代码如下: ``` 6292 [main] ERROR org.springframework.test.context.TestContextManager - Caught exception while allowing TestExecutionListener [org.springframework.test.context.web.ServletTestExecutionListener@148080bb] to prepare test instance [com.wyywp.main.TestUser@490c7a83] java.lang.NoSuchMethodError: javax.servlet.ServletContext.getContextPath()Ljava/lang/String; at com.mangofactory.swagger.paths.RelativeSwaggerPathProvider.applicationPath(RelativeSwaggerPathProvider.java:18) at com.mangofactory.swagger.paths.SwaggerPathProvider.getApplicationBasePath(SwaggerPathProvider.java:59) at com.mangofactory.swagger.scanners.ApiListingScanner.scan(ApiListingScanner.java:125) at com.mangofactory.swagger.core.SwaggerApiResourceListing.initialize(SwaggerApiResourceListing.java:72) at com.mangofactory.swagger.plugin.SwaggerSpringMvcPlugin.initialize(SwaggerSpringMvcPlugin.java:427) at com.mangofactory.swagger.plugin.SwaggerPluginAdapter.onApplicationEvent(SwaggerPluginAdapter.java:51) at com.mangofactory.swagger.plugin.SwaggerPluginAdapter.onApplicationEvent(SwaggerPluginAdapter.java:21) at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:166) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:138) at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:382) at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:336) at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:877) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:544) at org.springframework.test.context.web.AbstractGenericWebContextLoader.loadContext(AbstractGenericWebContextLoader.java:134) at org.springframework.test.context.web.AbstractGenericWebContextLoader.loadContext(AbstractGenericWebContextLoader.java:61) at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.delegateLoading(AbstractDelegatingSmartContextLoader.java:108) at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.loadContext(AbstractDelegatingSmartContextLoader.java:251) at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98) at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116) at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83) at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:189) at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:131) at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:230) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:228) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:287) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:289) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:247) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) ```

Android Studio 手动搭建LibGDX for Android环境

想用AS开发LibGdx,因为官方自带的Gdx-setup创建的工程实在太难导入,于是自己动手建一个工程。 工程目录如下:![图片说明](https://img-ask.csdn.net/upload/202002/27/1582782883_220472.png) 整个工程的build.gradle ``` // Top-level build file where you can add configuration options common to all sub-projects/modules. buildscript { repositories { google() jcenter() } dependencies { classpath 'com.android.tools.build:gradle:3.6.0' // 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 } ``` Android的build.gradle ``` apply plugin: 'com.android.application' android { compileSdkVersion 29 buildToolsVersion "29.0.3" defaultConfig { applicationId "com.end.of.sea" minSdkVersion 21 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' } } } dependencies { implementation 'androidx.appcompat:appcompat:1.1.0' 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/gdx-backend-android.jar') implementation project(path: ':gdx-game') } ``` gdx-game ``` apply plugin: 'java-library' dependencies { implementation files('libs/gdx.jar') implementation files('libs/gdx-backend-gwt.jar') implementation files('libs/gdx-backend-lwjgl.jar') implementation files('libs/gdx-backend-lwjgl-natives.jar') implementation files('libs/gdx-natives.jar') implementation files('libs/gdx-freetype.jar') implementation files('libs/gdx-freetype-natives.jar') } sourceCompatibility = "7" targetCompatibility = "7" ``` 如果将MainActivity继承AndroidApplication启动游戏的话,就会出现下面的错误。 ![图片说明](https://img-ask.csdn.net/upload/202002/27/1582783351_533406.png) 网上那些换字体和编码试过都没用。

junit启动报错--初始化error

``` ``` ``` java.lang.Exception: No tests found matching [{ExactMatcher:fDisplayName=initialize], {ExactMatcher:fDisplayName=initialize(com.test.ProcessCoreServiceImpl)], {LeadingIdentifierMatcher:fClassName=com.test.ProcessCoreServiceImpl,fLeadingIdentifier=initialize]] from org.junit.internal.requests.ClassRequest@4e22b7dc at org.junit.internal.requests.FilterRequest.getRunner(FilterRequest.java:40) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createFilteredTest(JUnit4TestLoader.java:77) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:68) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:43) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:444) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) at org.eclipse.jd ``` t.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) ``` ``` ![我的类](https://img-ask.csdn.net/upload/201707/11/1499742031_931047.png) 在例子中导入了junit变量。别的类里面的test标签启动好好的,包名也没有倒错。这真是诡异!!!

junit 测试报错:Manual close is not allowed over

junit 测试报错:Manual close is not allowed over a Spring managed SqlSession 项目为spring4.1.5.+springmvc+mybatis3.3.0,junit包为4.9 错误信息如下: java.lang.UnsupportedOperationException: Manual close is not allowed over a Spring managed SqlSession at org.mybatis.spring.SqlSessionTemplate.close(SqlSessionTemplate.java:310) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.springframework.beans.factory.support.DisposableBeanAdapter.invokeCustomDestroyMethod(DisposableBeanAdapter.java:350) at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:273) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:578) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:554) at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:900) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:523) at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:907) at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:908) at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:884) at org.springframework.context.support.AbstractApplicationContext$1.run(AbstractApplicationContext.java:804) 大部分说法都是在sqlsessionTemplate的配置加scope="prototype"但是好像不起作用 ![图片说明](https://img-ask.csdn.net/upload/201711/30/1512041272_247361.png) 测试能够正常进行,只是结束时会出这个错误,有没有高人给指点一下

使用junit4 报错 弄了几天了 一点头绪都没有

java.lang.ExceptionInInitializerError at com.java1234.service.StudentTest.<init>(StudentTest.java:18) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) at org.junit.runners.BlockJUnit4ClassRunner.createTest(BlockJUnit4ClassRunner.java:217) at org.junit.runners.BlockJUnit4ClassRunner$1.runReflectiveCall(BlockJUnit4ClassRunner.java:266) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.BlockJUnit4ClassRunner.methodBlock(BlockJUnit4ClassRunner.java:263) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) Caused by: org.hibernate.exception.JDBCConnectionException: Error calling Driver#connect at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:132) at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator$1$1.convert(BasicConnectionCreator.java:118) at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator.convertSqlException(BasicConnectionCreator.java:140) at org.hibernate.engine.jdbc.connections.internal.DriverConnectionCreator.makeConnection(DriverConnectionCreator.java:58) at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator.createConnection(BasicConnectionCreator.java:75) at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure(DriverManagerConnectionProviderImpl.java:106) at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:111) at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:234) at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:206) at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.buildJdbcConnectionAccess(JdbcServicesImpl.java:260) at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:94) at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:111) at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:234) at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:206) at org.hibernate.cfg.Configuration.buildTypeRegistrations(Configuration.java:1885) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1843) at com.java1234.util.HibernateUtil.buildSessionFactory(HibernateUtil.java:15) at com.java1234.util.HibernateUtil.<clinit>(HibernateUtil.java:10) ... 23 more Caused by: com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.net.SocketException MESSAGE: java.net.ConnectException: Connection refused: connect STACKTRACE: java.net.SocketException: java.net.ConnectException: Connection refused: connect at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:156) at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:284) at com.mysql.jdbc.Connection.createNewIO(Connection.java:2555) at com.mysql.jdbc.Connection.<init>(Connection.java:1485) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266) at org.hibernate.engine.jdbc.connections.internal.DriverConnectionCreator.makeConnection(DriverConnectionCreator.java:55) at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator.createConnection(BasicConnectionCreator.java:75) at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure(DriverManagerConnectionProviderImpl.java:106) at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:111) at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:234) at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:206) at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.buildJdbcConnectionAccess(JdbcServicesImpl.java:260) at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:94) at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:111) at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:234) at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:206) at org.hibernate.cfg.Configuration.buildTypeRegistrations(Configuration.java:1885) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1843) at com.java1234.util.HibernateUtil.buildSessionFactory(HibernateUtil.java:15) at com.java1234.util.HibernateUtil.<clinit>(HibernateUtil.java:10) at com.java1234.service.StudentTest.<init>(StudentTest.java:18) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) at org.junit.runners.BlockJUnit4ClassRunner.createTest(BlockJUnit4ClassRunner.java:217) at org.junit.runners.BlockJUnit4ClassRunner$1.runReflectiveCall(BlockJUnit4ClassRunner.java:266) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.BlockJUnit4ClassRunner.methodBlock(BlockJUnit4ClassRunner.java:263) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) ** END NESTED EXCEPTION ** Last packet sent to the server was 10 ms ago. at com.mysql.jdbc.Connection.createNewIO(Connection.java:2621) at com.mysql.jdbc.Connection.<init>(Connection.java:1485) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266) at org.hibernate.engine.jdbc.connections.internal.DriverConnectionCreator.makeConnection(DriverConnectionCreator.java:55) ... 37 more

AndroidStudio单元测试,为何logcat不能打印

1,使用AndroidStudio好久了,可是一直没有找到AndroidStudio单元测试Logcat信息………… 为何,求指导

Android Studio的项目运行时报错:Error configuring CMake server

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学习hibernate 使用junit测试时 出错 - -

**_<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <property name="connection.url"> jdbc:mysql://localhost:3306/hibernate?characterEncoding=UTF-8 </property> <property name="connection.username">root</property> <property name="connection.password"></property> <property name="connection.driver_class">com.mysql.jdbc.Driver</property> <property name="show_sql">true</property> <property name="format_sql">true</property> <property name="hbm2ddl.auto">true</property> <mapping resource="Student.hbm.xml"/> </session-factory> </hibernate-configuration> org.hibernate.exception.SQLGrammarException: Error calling Driver#connect 这是Student.hbm.xml <?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <!-- Generated 2016-11-22 20:14:28 by Hibernate Tools 3.4.0.CR1 --> **<hibernate-mapping> <class name="hibernate.Student" table="STUDENT"> <id name="sid" type="java.lang.String"> <column name="SID" /> <generator class="assigned" /> </id> <property name="sname" type="java.lang.String"> <column name="SNAME" /> </property> <property name="gender" type="java.lang.String"> <column name="GENDER" /> </property> <property name="birthdayDate" type="java.sql.Date"> <column name="BIRTHDAYDATE" /> </property> <property name="address" type="java.lang.String"> <column name="ADDRESS" /> </property> </class> </hibernate-mapping>** 这是TestStudent package hibernate; import java.util.Date; import javax.imageio.spi.ServiceRegistry; import org.hibernate.Session; import org.hibernate.Transaction; import org.hibernate.SessionFactory; import org.hibernate.boot.registry.StandardServiceRegistry; import org.hibernate.boot.registry.StandardServiceRegistryBuilder; import org.hibernate.boot.registry.internal.StandardServiceRegistryImpl; import org.hibernate.cfg.Configuration; import org.hibernate.service.ServiceRegistryBuilder; import org.junit.After; import org.junit.Before; import org.junit.Test; public class StudentTest { private SessionFactory sessionFactory; private Session session; private Transaction transaction; private StandardServiceRegistry serviceRegistry; @Before public void init(){ Configuration config =new Configuration().configure(); StandardServiceRegistryBuilder builder = new StandardServiceRegistryBuilder().applySettings(config.getProperties()); StandardServiceRegistryImpl registry = (StandardServiceRegistryImpl) builder.build(); sessionFactory = config.buildSessionFactory(registry); // serviceRegistry = new ServiceRegistryBuilder().applySettings(config.getProperties()).build(); // sessionFactory=config.buildSessionFactory(serviceRegistry);//创建会话工厂 session=sessionFactory.openSession();//打开会话 transaction=session.beginTransaction();//打开事务 } @After public void destory(){ transaction.commit();//打开事务 session.close();//关闭会话 sessionFactory.close();//关闭会话工厂 } @Test public void testSaveStudent(){ //生成学生对象 Student s=new Student(1,"李四","男",(java.sql.Date) new Date(),"北京"); session.save(s);//保存对象进入数据库 } } **_

hibernate中qurey查询 用Junit测试报错

我的工具 myeclipse 8.5 +oracle 10g 1.实体类映射文件Student.hbm.xml [code="java"]<?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <hibernate-mapping package="com.softeem.pojo"> <class name="Student" table="tb_student"> <id name="sno"> <generator class="native"></generator> </id> <property name="sname"/> <property name="ssex"/> <property name="sage"/> <property name="stime"/> </class> </hibernate-mapping>[/code] 2.hibernate配置文件hibernate.cfg.xml [code="java"]<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <property name="show_sql">true</property> <property name="dialect"> org.hibernate.dialect.Oracle9Dialect </property> <property name="connection.driver_class"> oracle.jdbc.driver.OracleDriver </property> <property name="connection.url"> jdbc:oracle:thin:@localhost:1521:softeem </property> <property name="connection.username">java1103</property> <property name="connection.password">java1103</property> <mapping resource="com/softeem/pojo/Student.hbm.xml" /> </session-factory> </hibernate-configuration>[/code] 3.test测试类CURDTest.java [code="java"]package com.softeem.test; import java.util.Date; import java.util.Iterator; import java.util.List; import org.hibernate.Query; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.cfg.Configuration; import com.softeem.pojo.Student; import junit.framework.TestCase; public class CURDTest extends TestCase{ //增 public void insertTest(){ Configuration config=new Configuration().configure(); SessionFactory sf=config.buildSessionFactory(); Session session=sf.openSession(); session.beginTransaction(); //增加十条记录 for(int i=0;i<10;i++){ Student stu=new Student(); stu.setSname("顾超"); stu.setSsex("男"); stu.setSage(21); stu.setStime(new Date()); session.save(stu); } session.getTransaction().commit(); session.close(); } //删 public void deleteTest(){ Configuration config=new Configuration().configure(); SessionFactory sf=config.buildSessionFactory(); Session session=sf.openSession(); session.beginTransaction(); Student stu=(Student) session.load(Student.class, 1); session.delete(stu); session.getTransaction().commit(); session.close(); } //改 public void updateTest(){ Configuration config=new Configuration().configure(); SessionFactory sf=config.buildSessionFactory(); Session session=sf.openSession(); session.beginTransaction(); Student stu=(Student) session.load(Student.class, 2); stu.setSname("小强"); stu.setSage(1); session.update(stu); session.getTransaction().commit(); session.close(); } //查 public void selectTest(){ Configuration config=new Configuration().configure(); SessionFactory sf=config.buildSessionFactory(); Session session=sf.openSession(); session.beginTransaction(); Student stu=(Student) session.load(Student.class,2); System.out.println(stu.getSno()+" "+stu.getSname()+" "+stu.getSsex()+" "+stu.getSage()+" "+stu.getStime()); //Query query=new Query("from tb_student"); session.getTransaction().commit(); session.close(); } // //查找全部 // public void selectAllTest(){ // Configuration config=new Configuration().configure(); // SessionFactory sf=config.buildSessionFactory(); // Session session=sf.openSession(); // session.beginTransaction(); // Query query=session.createQuery("from tb_student"); // List<?> list=query.list(); // Iterator<?> it=list.iterator(); // while(it.hasNext()){ // Student stu=(Student) it.next(); // System.out.println(stu.getSno()+" "+stu.getSname()+" "+stu.getSsex()+" "+stu.getSage()+" "+stu.getStime()); // } // session.getTransaction().commit(); // session.close(); // } // // //分页 // public void pagingTest(){ // Configuration config=new Configuration().configure(); // SessionFactory sf=config.buildSessionFactory(); // Session session=sf.openSession(); // session.beginTransaction(); // Query query=session.createQuery("form tb_student"); // query.setFirstResult(3); // query.setMaxResults(3); // List<?> list=query.list(); // for(int i=0;i<list.size();i++){ // System.out.println(list.get(i)); // } // session.getTransaction().commit(); // session.close(); // } // // //模糊查询 // public void blurTest(){ // Configuration config=new Configuration().configure(); // SessionFactory sf=config.buildSessionFactory(); // Session session=sf.openSession(); // session.beginTransaction(); // Query query=session.createQuery("form tb_student where sname like ?"); // query.setString(0, "%小%"); // List<?> list=query.list(); // for(int i=0;i<list.size();i++){ // System.out.println(list.get(i)); // } // session.getTransaction().commit(); // session.close(); // } } [/code] 问题是: [code="java"]Query query=session.createQuery("from tb_student");[/code]这条语句会报错 当我改成: [code="java"]Query query=session.createSQLQuery("select * from tb_student");[/code]这条语句不会报错,但是 [code="java"]Student stu=(Student) it.next(); [/code]这条语句就会报错. 不知道什么原因,纠结了很久。请大家指点。

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《Oracle Java SE编程自学与面试指南》最佳学习路线图(2020最新版)

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