本篇文章给大家谈谈IllegalStateException：在具有onActivityResult的onSaveInstanceState之后无法执行此操作，同时本文还将给你拓展@WebMvcTes
本篇文章给大家谈谈IllegalStateException：在具有onActivityResult的onSaveInstanceState之后无法执行此操作，同时本文还将给你拓展@WebMvcTest失败，并出现java.lang.IllegalStateException：无法加载ApplicationContext、activity 中的 onPause () 和 onSaveInstanceState () 解析、Activity的onSaveInstanceState()和 onRestoreInstanceState()方法、android java.lang.IllegalStateException: System services not available to Activities before onCreate等相关知识，希望对各位有所帮助，不要忘了收藏本站喔。
本文目录一览：- IllegalStateException：在具有onActivityResult的onSaveInstanceState之后无法执行此操作
- @WebMvcTest失败，并出现java.lang.IllegalStateException：无法加载ApplicationContext
- activity 中的 onPause () 和 onSaveInstanceState () 解析
- Activity的onSaveInstanceState()和 onRestoreInstanceState()方法
- android java.lang.IllegalStateException: System services not available to Activities before onCreate
IllegalStateException：在具有onActivityResult的onSaveInstanceState之后无法执行此操作
我是Android开发的新手。我有一个问题。我尝试了最后几个小时，但我无法弄清楚。如果是这样，我有一个很普遍的问题。IllegalStateException：使用ViewPager在onSaveInstanceState之后无法执行此操作，但由于缺少Android开发经验而失败。
这是代码：
@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == 1) { if(resultCode == RESULT_OK) { MyCustomDialogFragment newPopup = new MyCustomDialogFragment(); newPopup.setMyClickListener(MainActivity.this); FragmentManager fragmentManager = getSupportFragmentManager(); newPopup.show(fragmentManager, "CashReceivePopup"); } } }这是错误：
位于android.os.Handler.dispatchMessage（Handler.java:102）的ActivityThread $
H.handleMessage（ActivityThread.java:1352）位于android.app.ActivityThread.main的android.os.Looper.loop（Looper.java:135）
（ActivityThread.java:5254）at java.lang.reflect.Method.invoke（本地方法）at
java.lang.reflect.Method.invoke（Method.java:372）at
com.android.internal.os.ZygoteInit $ MethodAndArgsCaller
.run（ZygoteInit.java:903）at
com.android.internal.os.ZygoteInit.main（ZygoteInit.java:698）01-04
05：08：59.825 13609-13651 / com.nazmul.aznazgame.bitlife I / CrashlyticsCore
：Crashlytics报告上传完成：5C2EEA4F018E-0001-3529-63E978D09744 01-04 05：08：59.955
13609-13609 / com.nazmul.aznazgame.bitlife I / Process：正在发送信号。PID：13609
SIG：9
1352）在android.os.Handler.dispatchMessage（Handler.java:102）在android.os.Looper.loop（Looper.java:135）在android.app.ActivityThread.main（ActivityThread.java:5254）在java。
com.android.internal.os.ZygoteInit $
MethodAndArgsCaller.run（ZygoteInit.java:903）处java.lang.reflect.Method.invoke（Method.java:372）处的lang.reflect.Method.invoke（本机方法）
com.android.internal.os.ZygoteInit.main（ZygoteInit.java:698）01-04
05：08：59.825 13609-13651 / com.nazmul.aznazgame.bitlife I /
CrashlyticsCore：Crashlytics报告上传完成：5C2EEA4F018E-0001- 3529-63E978D09744 01-04
05：08：59.955 13609-13609 / com.nazmul.aznazgame.bitlife I /
Process：正在发送信号。PID：13609 SIG：9
1352）在android.os.Handler.dispatchMessage（Handler.java:102）在android.os.Looper.loop（Looper.java:135）在android.app.ActivityThread.main（ActivityThread.java:5254）在java。
com.android.internal.os.ZygoteInit $
MethodAndArgsCaller.run（ZygoteInit.java:903）处java.lang.reflect.Method.invoke（Method.java:372）处的lang.reflect.Method.invoke（本机方法）
com.android.internal.os.ZygoteInit.main（ZygoteInit.java:698）01-04
05：08：59.825 13609-13651 / com.nazmul.aznazgame.bitlife I /
CrashlyticsCore：Crashlytics报告上传完成：5C2EEA4F018E-0001- 3529-63E978D09744 01-04
05：08：59.955 13609-13609 / com.nazmul.aznazgame.bitlife I /
Process：正在发送信号。PID：13609 SIG：9
在java.lang.reflect.Method.invoke（本机方法）在android.app.ActivityThread.main（ActivityThread.java:5254）处循环（Looper.java:135）在java.lang.reflect.Method.invoke（Method。
java：372）在com.android.internal.os.ZygoteInit $
MethodAndArgsCaller.run（ZygoteInit.java:903）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:698）01-04
05:08 ：59.825 13609-13651 / com.nazmul.aznazgame.bitlife I /
CrashlyticsCore：Crashlytics报告上传完成：5C2EEA4F018E-0001-3529-63E978D09744 01-04
05：08：59.955 13609-13609 / com.nazmul.aznazgame.bitlife I /处理：发送信号。PID：13609
SIG：9
在java.lang.reflect.Method.invoke（本机方法）在android.app.ActivityThread.main（ActivityThread.java:5254）处循环（Looper.java:135）在java.lang.reflect.Method.invoke（Method。
java：372）在com.android.internal.os.ZygoteInit $
MethodAndArgsCaller.run（ZygoteInit.java:903）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:698）01-04
05:08 ：59.825 13609-13651 / com.nazmul.aznazgame.bitlife I /
CrashlyticsCore：Crashlytics报告上传完成：5C2EEA4F018E-0001-3529-63E978D09744 01-04
05：08：59.955 13609-13609 / com.nazmul.aznazgame.bitlife I /处理：发送信号。PID：13609
SIG：9 java：372）在com.android.internal.os.ZygoteInit $
MethodAndArgsCaller.run（ZygoteInit.java:903）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:698）01-04
05:08 ：59.825 13609-13651 / com.nazmul.aznazgame.bitlife I /
CrashlyticsCore：Crashlytics报告上传完成：5C2EEA4F018E-0001-3529-63E978D09744 01-04
05：08：59.955 13609-13609 / com.nazmul.aznazgame.bitlife I /处理：发送信号。PID：13609
SIG：9 java：372）在com.android.internal.os.ZygoteInit $
MethodAndArgsCaller.run（ZygoteInit.java:903）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:698）01-04
05:08 ：59.825 13609-13651 / com.nazmul.aznazgame.bitlife I /
CrashlyticsCore：Crashlytics报告上传完成：5C2EEA4F018E-0001-3529-63E978D09744 01-04
05：08：59.955 13609-13609 / com.nazmul.aznazgame.bitlife I /处理：发送信号。PID：13609
SIG：9 正在发送信号。PID：13609 SIG：9 正在发送信号。PID：13609 SIG：9
答案1
小编典典您必须super.onActivityResult(requestCode, resultCode,data)在onActivityResult()方法中执行任何FragmentTransactions之前先调用，因为该调用是“解锁”
FragmentManager的操作，并指出您处于执行FragmentTransactions的有效状态。
@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { // Add this line super.onActivityResult(requestCode, resultCode, data); // This all remains the same if (requestCode == 1) { if(resultCode == RESULT_OK) { MyCustomDialogFragment newPopup = new MyCustomDialogFragment(); newPopup.setMyClickListener(MainActivity.this); FragmentManager fragmentManager = getSupportFragmentManager(); newPopup.show(fragmentManager, "CashReceivePopup"); } } }
@WebMvcTest失败，并出现java.lang.IllegalStateException：无法加载ApplicationContext
我无法使带注释的测试@WebMvcTest正常工作。我还配置了spring-cloud-config-server和spring-cloud-
starter，所有带有此批注的Test类似乎都失败了。我有以下控制器测试：
码：
@RunWith(SpringRunner.class)
@WebMvcTest(controllers = UserController.class)
@ActiveProfiles({"dev","native"})
public class UserControllerTest {
@MockBean
private UserService userService;
@Autowired
private MockMvc mockMvc;
@Autowired
private ObjectMapper objectMapper;
@Test
public void changePassword() throws Exception {
given(userService.changePassword(any(),any(),any())).willReturn(true);
MvcResult result = mockMvc.perform(post(/user/changePassword)
.param("old","Pa$$W0rd")
.param("new,"NewPa$$W0rd"))
.andExpect(status().isOk()).andReturn();
assertThat(result).isNotNull();
assertThat(result.getResponse().getContentAsString()).isEqualTo("true");
}
}
相关控制器：
@RestController
@RequestMapping(/user)
@Log4j2
public class UserController {
private UserService userService;
public UserController(UserService userService) {
this.userService = userService;
}
@Timed
@PostMapping(value = /changePassword)
public ResponseEntity changePassword(@RequestParam("old") String oldPassword,@RequestParam("new") String newPassword) throws Exception {
String username = SecurityUtil.getCurrentLogin();
Boolean result = userService.changePassword(username,oldPassword,newPassword);
return new ResponseEntity<>(result,HttpStatus.OK);
}
}
值得一提的是，由于配置了spring-cloud，我还必须更新META-INF /
spring.factories文件并使用以下注释更新主ServerApplication类：
@Configuration
@EnableAutoConfiguration
@SpringBootConfiguration
@ComponentScan(excludeFilters = {@ComponentScan.Filter(type= FilterType.ASSIGNABLE_TYPE,value=AppPropertiesConfiguration.class)})
@ServletComponentScan
@EnableConfigServer
@EnableRetry
@Log4j2
public class ServerApplication {
...
...
}
运行测试后，出现以下错误：
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.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener.prepareTestInstance(SpringBootDependencyInjectionTestExecutionListener.java:44)
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$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'reportAdapterController' defined in file [D:\git\server.management-server\out\production\classes\com\emprepapp\server\adapter\controller\reports\ReportAdapterController.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'uploadReportController' defined in file [D:\git\server.management-server\out\production\classes\com\emprepapp\server\web\controller\reports\UploadReportController.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'reportService' defined in file [D:\git\server.management-server\out\production\classes\com\emprepapp\server\service\reports\ReportService.class]: Unsatisfied dependency expressed through constructor parameter 3; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'managerService' defined in file [D:\git\server.management-server\out\production\classes\com\emprepapp\server\service\managers\ManagerService.class]: Unsatisfied dependency expressed through constructor parameter 3; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': Cannot create inner bean '(inner bean)#35cbeb54' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#35cbeb54': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:749)
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:189)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1193)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1095)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
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:761)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303)
at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:120)
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.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'uploadReportController' defined in file [D:\git\server.management-server\out\production\classes\com\emprepapp\server\web\controller\reports\UploadReportController.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'reportService' defined in file [D:\git\server.management-server\out\production\classes\com\emprepapp\server\service\reports\ReportService.class]: Unsatisfied dependency expressed through constructor parameter 3; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'managerService' defined in file [D:\git\server.management-server\out\production\classes\com\emprepapp\server\service\managers\ManagerService.class]: Unsatisfied dependency expressed through constructor parameter 3; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': Cannot create inner bean '(inner bean)#35cbeb54' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#35cbeb54': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:749)
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:189)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1193)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1095)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
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:202)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:835)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741)
... 43 more
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'reportService' defined in file [D:\git\server.management-server\out\production\classes\com\emprepapp\server\service\reports\ReportService.class]: Unsatisfied dependency expressed through constructor parameter 3; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'managerService' defined in file [D:\git\server.management-server\out\production\classes\com\emprepapp\server\service\managers\ManagerService.class]: Unsatisfied dependency expressed through constructor parameter 3; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': Cannot create inner bean '(inner bean)#35cbeb54' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#35cbeb54': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:749)
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:189)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1193)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1095)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
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:202)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:835)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741)
... 57 more
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'managerService' defined in file [D:\git\server.management-server\out\production\classes\com\emprepapp\server\service\managers\ManagerService.class]: Unsatisfied dependency expressed through constructor parameter 3; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': Cannot create inner bean '(inner bean)#35cbeb54' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#35cbeb54': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:749)
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:189)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1193)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1095)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
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:202)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:835)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741)
... 71 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': Cannot create inner bean '(inner bean)#35cbeb54' of type [org.springframework.orm.jpa.SharedEntityManagerCreator] while setting bean property 'entityManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#35cbeb54': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:313)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:129)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1531)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1276)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
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:202)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:835)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741)
... 85 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#35cbeb54': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
at org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:634)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:448)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:299)
... 99 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'entityManagerFactory' available
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:687)
at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1207)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:284)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:275)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
... 107 more
结论：
经过大量搜索，我得出的结论是，可能必须要@WebMvcTest解决的问题是配置为类@Configuration或@EnableConfig服务器的类有问题，但是我尝试过的一切都没有帮助我解决此问题。
activity 中的 onPause () 和 onSaveInstanceState () 解析
当用户在开启一个新 activity 时，当前的 activity 可能在内存中处于停止状态也可能由于新 activity 需要更多内存而被系统杀掉了，但不论怎样，当用户在新 activity 上按返回键时，他希望看到的是原先的 activity 的界面。原先的 activity 如果是被重新创建，那么它要恢复到用户最后看到它的样子。那么我们怎么做呢？其实也不难，跟据上一节所述，在 onPause () 或 onStop () 或 onDestyroy () 中保存必要的数据就行了。但是现在 google 又冒出一个新的东西：onSaveInstanceState ()，观其名可知其意：它是专门用来保存实例状态的，这个 “实例” 不是指的 activity 对象，而是它所在的进程，因为 activity 的销毁是因为它所在的进程被杀而造成的。onSaveInstanceState () 是在系统感觉需要杀死 activity 时调用的，它被传入一个参数：Bundle，这个 Bundle 可以被认为是个 map, 字典之类的东西，用” 键－值” 来保存数据。
现在又叫人蛋疼了：不是可以在 onPause () 中保存数据吗？为什么又搞出这样一个家伙来？它们之间是省木关系呢？原来 onSaveInstanceState () 的主要目的是保存 activity 的状态有关的数据，当系统在杀死 activity 时，如果它希望 activity 下次出现的样子跟现在完全一样，那么它就调用这个 onSaveInstanceState ()，否则就不调用。所以要明白这一点：onSaveInstanceState () 并不是永远都会调用。比如，当用户在一个 activity 上按返回时，就不会调用，因为用户此时明确知道这个 activity 是要被销毁的，并不期望下次它的样子跟现在一样（当然开发者可以使它保持临死时的表情，你非要这样做，系统也没办法），所以就不用调用 onSaveInstanceState ()。现在应该明白了：在 onPause ()，onStop () 以及 onDestroy () 中需要保存的是那些需要永久化是数据，而不是保存用于恢复状态的数据，状态数据有专门的方法：onSaveInstanceState ()。数据保存在一个 Bundle 中，Bundle 被系统永久化。当再调用 activity 的 onCreate () 时，原先保存的 bundle 就被传入，以恢复上一次临死时的模样，如果上次死时没有保存 Bundle，则为 null。
还没完呢，如果你没有实现自己的 onSaveInstanceState ()，但是 activity 上控件的样子可能依然能被保存并恢复。原来 activity 类已实现了 onSaveInstanceState ()，在 onSaveInstanceState () 的默认实现中，会调用所有控件的相关方法，把控件们的状态都保存下来，比如 EditText 中输入的文字，CheckBox 是否被选中等等。然而不是所有的控件都能被保存，这取决于你是否在 layout 文件中为控件赋了一个名字 (android:id)。有名的就存，无名的不管。
既然有现成的可用，那么我们到底还要不要自己实现 onSaveInstanceState ()? 这得看情况了，如果你自己的派生类中有变量影响到 UI，或你程序的行为，当然就要把这个变量也保存了，那么就需要自己实现，否则就不需要，但大多数情况肯定需要自己实现一下下了。对了，别忘了在你的实现中调用父类的 onSaveInstanceState ()。
注：由于 onSaveInstanceState () 并不是每次销毁时都会调用，所以不要在其中保存那些需要永久化的数据，执行保存那些数据的最好地方是：onPause () 中。
测试你程序的状态恢复能力的最好方法是：旋转屏幕，每当屏幕的方向改变时，当前的 activity 就会被系统销毁，然后重新创建（应该是进程被关闭！――不会吧？效率不高哦）。
(以上内容收集与网络)
Activity的onSaveInstanceState()和 onRestoreInstanceState()方法
@Override
protected void onRestoreInstanceState(Bundle savedState) {
super.onRestoreInstanceState(savedState);
mSeries = (CategorySeries) savedState.getSerializable("current_series");
mRenderer = (DefaultRenderer) savedState.getSerializable("current_renderer");
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putSerializable("current_series", mSeries);
outState.putSerializable("current_renderer", mRenderer);
}
Activity的 onSaveInstanceState() 和 onRestoreInstanceState()并不是生命周期方法，
它们不同于onCreate()、onPause()等生命周期方法，它们并不一定会被触发。
当应用遇到意外情况（如：内存不足、用户直接按Home键）由系统销毁一个Activity时，
onSaveInstanceState() 会被调用(由运行状态进入暂停状态或停止状态)。
但是当用户主动去销毁一个Activity时，例如在应用中按返回键，onSaveInstanceState()就不会被调用。
因为在这种情况下，用户的行为决定了不需要保存Activity的状态。
通常onSaveInstanceState()只适合用于保存一些临时性的状态，
而onPause()适合用于数据的持久化保存。
另外，当屏幕的方向发生了改变， Activity会被摧毁并且被重新创建，
如果你想在Activity被摧毁前缓存一些数据，并且在Activity被重新创建后恢复缓存的数据。
android java.lang.IllegalStateException: System services not available to Activities before onCreate
java.lang.IllegalStateException: System services not available to Activities before onCreate()出现这种情况一般是因为 通过使用new关键字实例化Activity类，这样是错误的。因为Activity是系统通过ActivityManagerService创建管理的。 new之后，创建了对象，但没有创建这个Activity，要知道Activity的对象和在Android中真正表示的东西，不是一样的。 对象创建完成后，需要系统对其进行一系列的init和管理。在这个创建的过程中，会回调Acitivity中的onCreate方法，这个方法调用之后，才能说明Activity是创建完成了。
所以就不能使用new关键字实例化Activity对象，要通过startActivity的方式，实例化这个Activity对象。
原文链接： http://blog.csdn.net/centralperk/article/details/7496877
我们今天的关于IllegalStateException：在具有onActivityResult的onSaveInstanceState之后无法执行此操作的分享已经告一段落，感谢您的关注，如果您想了解更多关于@WebMvcTest失败，并出现java.lang.IllegalStateException：无法加载ApplicationContext、activity 中的 onPause () 和 onSaveInstanceState () 解析、Activity的onSaveInstanceState()和 onRestoreInstanceState()方法、android java.lang.IllegalStateException: System services not available to Activities before onCreate的相关信息，请在本站查询。
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