本文转载自:https://blog.csdn.net/xu_guo_jie/article/details/82979956
背景
在学习Springboot一个项目中需要实时的向前端展示数据变化,因此使用websocket。但是在项目中增加websocket后,功能没有问题,但是之前写的单元测试代码都无法运行。(代码和报错贴出来,如下,可以忽略)
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import
org
.junit
.Test;
-
import
org
.junit
.runner
.RunWith;
-
import
org
.springframework
.boot
.test
.context
.SpringBootTest;
-
import
org
.springframework
.test
.context
.junit4
.SpringRunner;
-
-
@
RunWith(
SpringRunner.
class)
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@SpringBootTest
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public class AdminApplicationTests {
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@
Test
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public void contextLoads() {
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}
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}
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Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
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2018-10-09 11:32:19.441 ERROR 7124
--- [ main] o.s.boot.SpringApplication : Application run failed
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org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'serverEndpointExporter' defined in class path resource [com/hengyun/demo/websocket/WebSocketConfig.class]: Invocation of init method failed; nested exception is java.lang.IllegalStateException: javax.websocket.server.ServerContainer not available
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at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1699) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:573) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:759) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:762) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]
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at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:398) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]
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at org.springframework.boot.SpringApplication.run(SpringApplication.java:330) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]
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at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:139) [spring-boot-test-2.0.4.RELEASE.jar:2.0.4.RELEASE]
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at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:99) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:117) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:108) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:190) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:132) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:246) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:227) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit-4.12.jar:4.12]
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at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:246) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) [junit-4.12.jar:4.12]
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at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) [junit-4.12.jar:4.12]
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at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) [junit-4.12.jar:4.12]
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at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) [junit-4.12.jar:4.12]
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at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) [junit-4.12.jar:4.12]
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at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.junit.runners.ParentRunner.run(ParentRunner.java:363) [junit-4.12.jar:4.12]
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at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) [.cp/:na]
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at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) [.cp/:na]
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at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:538) [.cp/:na]
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at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:760) [.cp/:na]
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at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:460) [.cp/:na]
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at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:206) [.cp/:na]
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Caused by: java.lang.IllegalStateException: javax.websocket.server.ServerContainer not available
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at org.springframework.util.Assert.state(Assert.java:73) ~[spring-core-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.web.socket.server.standard.ServerEndpointExporter.afterPropertiesSet(ServerEndpointExporter.java:106) ~[spring-websocket-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1758) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1695) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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... 40 common frames omitted
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2018-10-09 11:32:19.443 ERROR 7124
--- [ main] o.s.test.context.TestContextManager : Caught exception while allowing TestExecutionListener [org.springframework.test.context.web.ServletTestExecutionListener@7e07db1f] to prepare test instance [com.hengyun.admin.AdminApplicationTests@680362a]
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java.lang.IllegalStateException: Failed to
load ApplicationContext
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at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:
125) ~[spring-
test
-5.0
.8.RELEASE.jar:
5.0
.8.RELEASE]
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at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:
108) ~[spring-
test
-5.0
.8.RELEASE.jar:
5.0
.8.RELEASE]
-
at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:
190) ~[spring-
test
-5.0
.8.RELEASE.jar:
5.0
.8.RELEASE]
-
at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:
132) ~[spring-
test
-5.0
.8.RELEASE.jar:
5.0
.8.RELEASE]
-
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:
246) ~[spring-
test
-5.0
.8.RELEASE.jar:
5.0
.8.RELEASE]
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at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:
227) [spring-
test
-5.0
.8.RELEASE.jar:
5.0
.8.RELEASE]
-
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$
1.runReflectiveCall(SpringJUnit4ClassRunner.java:
289) [spring-
test
-5.0
.8.RELEASE.jar:
5.0
.8.RELEASE]
-
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:
12) [junit
-4.12.jar:
4.12]
-
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:
291) [spring-
test
-5.0
.8.RELEASE.jar:
5.0
.8.RELEASE]
-
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:
246) [spring-
test
-5.0
.8.RELEASE.jar:
5.0
.8.RELEASE]
-
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:
97) [spring-
test
-5.0
.8.RELEASE.jar:
5.0
.8.RELEASE]
-
at org.junit.runners.ParentRunner$
3.run(ParentRunner.java:
290) [junit
-4.12.jar:
4.12]
-
at org.junit.runners.ParentRunner$
1.schedule(ParentRunner.java:
71) [junit
-4.12.jar:
4.12]
-
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:
288) [junit
-4.12.jar:
4.12]
-
at org.junit.runners.ParentRunner.access$
000(ParentRunner.java:
58) [junit
-4.12.jar:
4.12]
-
at org.junit.runners.ParentRunner$
2.
evaluate(ParentRunner.java:
268) [junit
-4.12.jar:
4.12]
-
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:
61) [spring-
test
-5.0
.8.RELEASE.jar:
5.0
.8.RELEASE]
-
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:
70) [spring-
test
-5.0
.8.RELEASE.jar:
5.0
.8.RELEASE]
-
at org.junit.runners.ParentRunner.run(ParentRunner.java:
363) [junit
-4.12.jar:
4.12]
-
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:
190) [spring-
test
-5.0
.8.RELEASE.jar:
5.0
.8.RELEASE]
-
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:
86) [.cp/:na]
-
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:
38) [.cp/:na]
-
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:
538) [.cp/:na]
-
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:
760) [.cp/:na]
-
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:
460) [.cp/:na]
-
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:
206) [.cp/:na]
-
Caused
by: org.springframework.beans.factory.BeanCreationException:
Error creating bean
with
name
'serverEndpointExporter' defined
in
class
path
resource [com/hengyun/demo/websocket/WebSocketConfig.class]: Invocation
of init method
failed; nested exception is java.lang.IllegalStateException: javax.websocket.server.ServerContainer not available
-
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1699) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:573) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
-
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
-
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
-
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
-
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:759) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
-
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]
-
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]
-
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:762) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]
-
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:398) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]
-
at org.springframework.boot.SpringApplication.run(SpringApplication.java:330) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]
-
at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:139) ~[spring-boot-test-2.0.4.RELEASE.jar:2.0.4.RELEASE]
-
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:99) ~[spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:117) ~[spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
-
... 25 common frames omitted
-
Caused by: java.lang.IllegalStateException: javax.websocket.server.ServerContainer not available
-
at org.springframework.util.Assert.state(Assert.java:73) ~[spring-core-5.0.8.RELEASE.jar:5.0.8.RELEASE]
-
at org.springframework.web.socket.server.standard.ServerEndpointExporter.afterPropertiesSet(ServerEndpointExporter.java:106) ~[spring-websocket-5.0.8.RELEASE.jar:5.0.8.RELEASE]
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at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1758) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
-
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1695) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
-
... 40 common frames omitted
解决
从spring-boot文档中找到解决方法,很简单,SpringBootTest增加webEnvironment 参数。
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
-
package
com
.hengyun
.admin;
-
-
import
org
.junit
.Test;
-
import
org
.junit
.runner
.RunWith;
-
import
org
.springframework
.boot
.test
.context
.SpringBootTest;
-
import
org
.springframework
.test
.context
.junit4
.SpringRunner;
-
-
@
RunWith(
SpringRunner.
class)
-
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
-
public class AdminApplicationTests {
-
-
@
Test
-
public void contextLoads() {
-
}
-
-
}
https://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-testing.html
By default, @SpringBootTest
will not start a server. You can use the webEnvironment
attribute of @SpringBootTest
to further refine how your tests run:
MOCK
(Default) : Loads a web ApplicationContext
and provides a mock web environment. Embedded servers are not started when using this annotation. If a web environment is not available on your classpath, this mode transparently falls back to creating a regular non-web ApplicationContext
. It can be used in conjunction with @AutoConfigureMockMvc
or @AutoConfigureWebTestClient
for mock-based testing of your web application.RANDOM_PORT
: Loads a WebServerApplicationContext
and provides a real web environment. Embedded servers are started and listen on a random port.DEFINED_PORT
: Loads a WebServerApplicationContext
and provides a real web environment. Embedded servers are started and listen on a defined port (from your application.properties
or on the default port of 8080
).NONE
: Loads an ApplicationContext
by using SpringApplication
but does not provide any web environment (mock or otherwise).