springtestmapper注入失败问题解决{@--688IT编程网

springtestmapper注⼊失败问题解决{@org.springframework。。。

花费了⼀下午都没有搜索到相关解决⽅案的原因，⼀是我使⽤的 UnsatisfiedDependencyException 这个⽐较上层的异常（在最前⾯）来进⾏搜索，

范围太⼴导致没有搜索到，⽽且即便是有⼈提出是包扫描的问题，但是我spring的基础太差，所以也不知道该怎么操作，

然后这次⼜印证了我之前的那篇博客，即碰到异常⼀定要到根异常，参考我之前的⽂章：；

根异常⼀般在异常⾏的末尾，这次就是搜索末尾的 {@org.springframework.beans.factory.annotation.Autowired(required=true)} ，才搜索到下⾯的这篇解决的博客的，

注：这个问题跟类名，⽅法名，idea版本没有任何关系。

注：每次使⽤springtest进⾏⾮web的测试时，都需要按照下⾯的正确⽰例来写注解，并且设置idea resources为 test resources，并且在 l 中，

把包扫描设置为⾃动配置 <context:annotation-config /> ，否则会报BeanCreationException: Error creating bean with name

<context:component-scan base-package="org.kinome">

<context:exclude-filter type="annotation"

expression="org.springframework.stereotype.Controller"></context:exclude-filter>

</context:component-scan>

<context:annotation-config />

这⾥是包扫描出现了问题导致的，原因不明，

不过如果替换成了这个的话，项⽬启动时会有⼀些启动类出现注⼊问题，所以如果要做springtest的话，⽤替换为的包扫描⾃动配置，如果要启动项⽬的话，就换回替换之前的包扫描配置。（两个配置不⽤哪个注释掉就可以了，当做选项灵活配置）

注意：如果仅仅做springtest，不涉及web，那么就只加载 l 就可以了，否则会报错。

正确⽰例：

@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration(locations = "l")

public class TestExample {

@Autowired

AssetsDevicetypeRefactorMapper assetsDevicetypeRefactorMapper;

@Test

public void test() {

AssetsDevicetypeRefactorExample example = new AssetsDevicetypeRefactorExample();

AssetsDevicetypeRefactorExample.Criteria criteria = ateCriteria();

<().andIscustomizeEqualTo("N");

<().andInfosysidEqualTo(1);

List<AssetsDevicetypeRefactor> assetsDevicetypeRefactors = assetsDevicetypeRefactorMapper.selectByExample(example);

for (AssetsDevicetypeRefactor adr

: assetsDevicetypeRefactors

) {

System.out.Name());

}

要想正常使⽤springtest，还需要把resources设置为 test resources

下⾯是只引⼊ l ，但是包扫描没有⽤⾃动配置，⽽是⽤的那个⾃定义的包扫描（也就是上⾯那个长的），做springtest时出现的异常

"C:\Program Files\Java\jdk1.8.0_151\" -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:7284,suspend=y,server=n -ea -lic.buffer.size=1048576 -javaagent:C:\Users\Administrator\.IntelliJIdea2018.3\system\capture Connected to the target VM, address: '127.0.0.1:7284', transport: 'socket'

[main] INFO st.context.support.DefaultTestContextBootstrapper - Loaded default TestExecutionListener class names from location [META-INF/spring.factories]: [st.context.web.ServletTestExecution [main] INFO st.context.support.DefaultTestContextBootstrapper - Using TestExecutionListeners: [st.context.web.ServletTestExecutionListener@54c562f7, st.context.support.D [main] INFO org.springframework.l.XmlBeanDefinitionReader - Loading XML bean definitions from class path resource [l]

[main] INFO t.support.GenericApplicationContext - Refreshing t.support.GenericApplicationContext@130161f7: startup date [Wed Jan 09 14:40:41 CST 2019]; root of context hierarchy [INFO ] 2019-01-09 14:40:42,692 hange.v2.log.MLog.<clinit>(MLog.java:80)

MLog clients using log4j logging.

[INFO ] 2019-01-09 14:40:42,872 hange.v2.c3p0.C3P0Registry.banner(C3P0Registry.java:204)

Initializing c3p0-0.9.1.2 [built 21-May-2007 15:04:56; debug? true; trace: 10]

[main] WARN t.support.GenericApplicationContext - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with [main] ERROR st.context.TestContextManager - Caught exception while allowing TestExecutionListener [st.context.support.DependencyInjectionTestExecutionListener@6dbb137d] to prepare test ins java.lang.IllegalStateException: Failed to load ApplicationContext

at st.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124)

at st.context.ApplicationContext(DefaultTestContext.java:83)

at st.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:117)

at st.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83)

at st.context.TestContextManager.prepareTestInstance(TestContextManager.java:230)

at st.context.ateTest(SpringJUnit4ClassRunner.java:228)

at st.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:287)

at org.junit.del.ReflectiveCallable.run(ReflectiveCallable.java:12)

at st.context.hodBlock(SpringJUnit4ClassRunner.java:289)

at st.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:247)

at st.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 st.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)

at st.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)

at org.junit.runners.ParentRunner.run(ParentRunner.java:363)

at st.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 cution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)

at cution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)

at cution.junit.JUnitStarter.main(JUnitStarter.java:70)

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'assetParser' defined in file [D:\project2\RM\target\classes\org\kinome\rm\utils\file\AssetParser.class]: Instantiation of bean failed; nested exc at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1155)

at org.springframework.beans.factory.ateBeanInstance(AbstractAutowireCapableBeanFactory.java:1099)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)

at org.springframework.beans.factory.ateBean(AbstractAutowireCapableBeanFactory.java:483)

at org.springframework.beans.factory.support.Object(AbstractBeanFactory.java:306)

at org.springframework.beans.factory.Singleton(DefaultSingletonBeanRegistry.java:230)

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)

at org.springframework.beans.factory.Bean(AbstractBeanFactory.java:197)

at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761)

at t.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866)

at t.fresh(AbstractApplicationContext.java:542)

at st.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:128)

at st.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:60)

at st.context.support.AbstractDelegatingSmartContextLoader.delegateLoading(AbstractDelegatingSmartContextLoader.java:108)

at st.context.support.AbstractDelegatingSmartContextLoader.loadContext(AbstractDelegatingSmartContextLoader.java:251)

at st.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98)

at st.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116)

... 24 more

Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [utils.file.AssetParser]: Constructor threw exception; nested exception is java.lang.NullPointerException

at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:154)

at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:89)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1147)

... 40 more

Caused by: java.lang.NullPointerException

at e.Bean(SpringContextUtil.java:25)

at utils.file.AssetParser.<init>(AssetParser.java:33)

wInstance0(Native Method)

wInstance(NativeConstructorAccessorImpl.java:62)

wInstance(DelegatingConstructorAccessorImpl.java:45)

at wInstance(Constructor.java:423)

at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:142)

... 42 more

java.lang.IllegalStateException: Failed to load ApplicationContext