spring+springmvc整合mabytis时mapper注入失败问题解决方法
程序员文章站
2024-02-23 21:14:40
好久不搭架构，今天使用spring+springmvc整合mabytis的时候，坑爹的两个问题发生了。
花了一晚上解决这两个问题。现在将错误经验总结分享下，避免以后遇到坑...
好久不搭架构，今天使用spring+springmvc整合mabytis的时候，坑爹的两个问题发生了。
花了一晚上解决这两个问题。现在将错误经验总结分享下，避免以后遇到坑继续往里跳。
1. 单元测试的时候,单元测试失败报错: a servletcontext is required to configure default servlet handling
十月 28, 2016 9:03:33 下午 org.springframework.context.support.genericapplicationcontext refresh 警告: exception encountered during context initialization - cancelling refresh attempt org.springframework.beans.factory.beancreationexception: error creating bean with name 'defaultservlethandlermapping' defined in class path resource [org/springframework/web/servlet/config/annotation/delegatingwebmvcconfiguration.class]: bean instantiation via factory method failed; nested exception is org.springframework.beans.beaninstantiationexception: failed to instantiate [org.springframework.web.servlet.handlermapping]: factory method 'defaultservlethandlermapping' threw exception; nested exception is java.lang.illegalargumentexception: a servletcontext is required to configure default servlet handling at org.springframework.beans.factory.support.constructorresolver.instantiateusingfactorymethod(constructorresolver.java:599) at org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.instantiateusingfactorymethod(abstractautowirecapablebeanfactory.java:1119) at org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.createbeaninstance(abstractautowirecapablebeanfactory.java:1014) at org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.docreatebean(abstractautowirecapablebeanfactory.java:504) at org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.createbean(abstractautowirecapablebeanfactory.java:476) at org.springframework.beans.factory.support.abstractbeanfactory$1.getobject(abstractbeanfactory.java:303) at org.springframework.beans.factory.support.defaultsingletonbeanregistry.getsingleton(defaultsingletonbeanregistry.java:230) at org.springframework.beans.factory.support.abstractbeanfactory.dogetbean(abstractbeanfactory.java:299) at org.springframework.beans.factory.support.abstractbeanfactory.getbean(abstractbeanfactory.java:194) at org.springframework.beans.factory.support.defaultlistablebeanfactory.preinstantiatesingletons(defaultlistablebeanfactory.java:755) at org.springframework.context.support.abstractapplicationcontext.finishbeanfactoryinitialization(abstractapplicationcontext.java:757) at org.springframework.context.support.abstractapplicationcontext.refresh(abstractapplicationcontext.java:480) at org.springframework.test.context.support.abstractgenericcontextloader.loadcontext(abstractgenericcontextloader.java:125) at org.springframework.test.context.support.abstractgenericcontextloader.loadcontext(abstractgenericcontextloader.java:60) at org.springframework.test.context.support.abstractdelegatingsmartcontextloader.delegateloading(abstractdelegatingsmartcontextloader.java:109) at org.springframework.test.context.support.abstractdelegatingsmartcontextloader.loadcontext(abstractdelegatingsmartcontextloader.java:261) at org.springframework.test.context.defaultcacheawarecontextloaderdelegate.loadcontextinternal(defaultcacheawarecontextloaderdelegate.java:68) at org.springframework.test.context.defaultcacheawarecontextloaderdelegate.loadcontext(defaultcacheawarecontextloaderdelegate.java:86) at org.springframework.test.context.defaulttestcontext.getapplicationcontext(defaulttestcontext.java:72) 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:212) at org.springframework.test.context.junit4.springjunit4classrunner.createtest(springjunit4classrunner.java:200) at org.springframework.test.context.junit4.springjunit4classrunner$1.runreflectivecall(springjunit4classrunner.java:259) at org.junit.internal.runners.model.reflectivecallable.run(reflectivecallable.java:12) at org.springframework.test.context.junit4.springjunit4classrunner.methodblock(springjunit4classrunner.java:261) at org.springframework.test.context.junit4.springjunit4classrunner.runchild(springjunit4classrunner.java:219) at org.springframework.test.context.junit4.springjunit4classrunner.runchild(springjunit4classrunner.java:83) 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:68) at org.junit.runners.parentrunner.run(parentrunner.java:363) at org.springframework.test.context.junit4.springjunit4classrunner.run(springjunit4classrunner.java:163) 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: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) caused by: org.springframework.beans.beaninstantiationexception: failed to instantiate [org.springframework.web.servlet.handlermapping]: factory method 'defaultservlethandlermapping' threw exception; nested exception is java.lang.illegalargumentexception: a servletcontext is required to configure default servlet handling at org.springframework.beans.factory.support.simpleinstantiationstrategy.instantiate(simpleinstantiationstrategy.java:189) at org.springframework.beans.factory.support.constructorresolver.instantiateusingfactorymethod(constructorresolver.java:588) ... 42 more
web.xml
<?xml version="1.0" encoding="utf-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemalocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
<display-name>archetype created web application</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<!-- 指定spring初始上下文环境-指定spring-core配置文件 -->
<context-param>
<param-name>contextconfiglocation</param-name>
<param-value>classpath:spring_ynyn_dependence.xml</param-value>
</context-param>
<!-- 字符编码过滤器 -->
<filter>
<filter-name>characterencoding</filter-name>
<filter-class>org.springframework.web.filter.characterencodingfilter</filter-class>
<init-param>
<param-name>forceencoding</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>encoding</param-name>
<param-value>utf-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterencoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- spring-mvc分发器配置并指定spring-mvc配置文件 -->
<servlet>
<servlet-name>dispatcherservlet</servlet-name>
<servlet-class>
org.springframework.web.servlet.dispatcherservlet
</servlet-class>
<init-param>
<param-name>contextconfiglocation</param-name>
<param-value>
classpath:spring-mvc.xml
</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherservlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<filter>
<filter-name>hiddenhttpmethodfilter</filter-name>
<filter-class>org.springframework.web.filter.hiddenhttpmethodfilter</filter-class>
</filter>
<filter-mapping>
<filter-name>hiddenhttpmethodfilter</filter-name>
<servlet-name>dispatcherservlet</servlet-name>
</filter-mapping>
</web-app>
资源以及配置文件都放在src/main/respources目录下。
springmvc的配置文件spring-mvc.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:mvc="http://www.springframework.org/schema/mvc" xmlns:util="http://www.springframework.org/schema/util"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:task="http://www.springframework.org/schema/task"
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/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util-3.1.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task.xsd">
<context:component-scan base-package="org.byron4j.ynyn.*" >
<context:include-filter type="annotation" expression="org.springframework.stereotype.controller" />
</context:component-scan>
<!-- 默认的注解映射的支持 -->
<mvc:annotation-driven>
<mvc:message-converters register-defaults="true">
<bean class="org.springframework.http.converter.stringhttpmessageconverter">
<constructor-arg value="utf-8" />
</bean>
<bean
class="com.alibaba.fastjson.support.spring.fastjsonhttpmessageconverter">
<property name="supportedmediatypes" value="application/json;charset=utf-8" />
<property name="features">
<array>
<value>writemapnullvalue</value>
<value>writenullstringasempty</value>
</array>
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
<!-- 静态资源映射 -->
<mvc:resources mapping="/js/**" location="/js/" />
<mvc:resources mapping="/css/**" location="/css/" />
<mvc:resources mapping="/images/**" location="/images/" />
<!-- 当上面要访问的静态资源不包括在上面的配置中时，则根据此配置来访问 -->
<mvc:default-servlet-handler />
<!--对模型视图名称的解析，即在模型视图名称添加前后缀 -->
<bean
class="org.springframework.web.servlet.view.internalresourceviewresolver">
<property name="viewclass"
value="org.springframework.web.servlet.view.jstlview" />
<property name="prefix" value="/web-inf/jsp/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
sprin框架的配置文件spring_ynyn_dependence.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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:task="http://www.springframework.org/schema/task"
xsi:schemalocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util-3.1.xsd
http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task.xsd">
<util:properties id="valuesettings" location="classpath:globalconfig.properties" />
<context:component-scan base-package="org.byron4j.ynyn.*" >
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.controller" />
</context:component-scan>
<!--引入定时任务注解驱动，可以在应用中使用@scheduled注解开发定时任务-->
<task:annotation-driven />
<!--引入数据源配置，包括mybatis相关的配置-->
<import resource="classpath*:byron4j_ynyn_datasource.xml"/>
</beans>
数据源配置文件byron4j_ynyn_datasource.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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemalocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.1.xsd">
<bean id="sqlsessionfactory" class="org.mybatis.spring.sqlsessionfactorybean">
<property name="configlocation" value="classpath:byron4j_ynyn_mybatis-config.xml" />
<!--我的项目的表的mapper.xml文件放在src/main/resources目录下-->
<property name="mapperlocations" value="classpath*:sqlmap/*.xml" />
<property name="datasource" ref="datasource" />
</bean>
<bean class="org.mybatis.spring.mapper.mapperscannerconfigurer">
<property name="basepackage" value="org.byron4j.ynyn.mapper" />
<property name="sqlsessionfactorybeanname" value="sqlsessionfactory"></property>
</bean>
<!-- 事务管理 -->
<bean id="mytxmanager"
class="org.springframework.jdbc.datasource.datasourcetransactionmanager">
<property name="datasource" ref="datasource"></property>
</bean>
<tx:annotation-driven transaction-manager="mytxmanager" />
<!--这里使用的是sqlite数据库，是一种文件数据库，用户名密码的账户必须拥有可以读写ynyn.sqlite文件的权限-->
<bean id="datasource"
class="org.apache.commons.dbcp.basicdatasource"
destroy-method="close">
<property name="driverclassname" value="org.sqlite.jdbc"/>
<property name="url" value="jdbc:sqlite:e:\ynyn.sqlite"/>
<property name="username" value="username"/>
<property name="password" value="password"/>
<!--maxactive: 最大连接数量-->
<property name="maxactive" value="200"/>
<!--minidle: 最小空闲连接-->
<property name="minidle" value="10"/>
<!--maxidle: 最大空闲连接-->
<property name="maxidle" value="50"/>
<!--initialsize: 初始化连接-->
<property name="initialsize" value="50"/>
<!-- 连接被泄露时是否打印 -->
<property name="logabandoned" value="true"/>
<!--removeabandoned: 是否自动回收超时连接-->
<property name="removeabandoned" value="true"/>
<!--removeabandonedtimeout: 超时时间(以秒数为单位)-->
<property name="removeabandonedtimeout" value="180"/>
<!--maxwait: 超时等待时间以毫秒为单位 1000等于60秒-->
<property name="maxwait" value="1000"/>
<!-- 在空闲连接回收器线程运行期间休眠的时间值,以毫秒为单位. -->
<property name="timebetweenevictionrunsmillis" value="10000"/>
<!-- 在每次空闲连接回收器线程(如果有)运行时检查的连接数量 -->
<property name="numtestsperevictionrun" value="10"/>
<!-- 1000 * 60 * 30 连接在池中保持空闲而不被空闲连接回收器线程-->
<property name="minevictableidletimemillis" value="10000"/>
<property name="validationquery" value="select 1 limit 1 "/>
</bean>
</beans>
mybatis配置文件byron4j_ynyn_mybatis-config.xml
<?xml version="1.0" encoding="utf-8"?>
<!doctype configuration
public "-//mybatis.org//dtd config 3.0//en"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
</configuration>
单元测试基类basemockitotestcase.java
src/test/java目录下：
package org.byron4j.ynyn.base;
import org.junit.after;
import org.junit.before;
import org.junit.runner.runwith;
import org.mockito.mockitoannotations;
import org.springframework.test.context.contextconfiguration;
import org.springframework.test.context.junit4.springjunit4classrunner;
/**
* mock测试类基类--配置文件载入类
*
* @classname: basespringtestcase
*
*/
@runwith(springjunit4classrunner.class)
@contextconfiguration(locations = { "classpath:spring_ynyn_dependence.xml" })
public class basemockitotestcase {
@before
public void beforeinvoke() {
system.out.println("调用前工作....");
mockitoannotations.initmocks(this);
}
@after
public void afterinvoke() {
system.out.println("调用完成.");
}
}
单元测试类studenttest.java出问题了
package org.byron4j.ynyn.dbtest;
import org.junit.test;
import org.springframework.beans.factory.annotation.autowired;
import org.byron4j.ynyn.base.basemockitotestcase;
import org.byron4j.ynyn.mapper.taskermapper;
import org.byron4j.ynyn.mode.tasker;
public class studenttest extends basemockitotestcase{
@autowired
studentmapper studentmapper;
@test
public void selecttest4success(){
student record = new student();
record.setid(1);
student resultstudent = studentmapper.selectbyprimarykey(record);
system.out.println(resultstudent);;
}
}
执行单元测试的时候，报错了警告: exception encountered during context initialization - cancelling refresh attempt
org.springframework.beans.factory.beancreationexception: error creating bean with name ‘defaultservlethandlermapping' defined in class path resource [org/springframework/web/servlet/config/annotation/delegatingwebmvcconfiguration.class]: bean instantiation via factory method failed; nested exception is org.springframework.beans.beaninstantiationexception: failed to instantiate [org.springframework.web.servlet.handlermapping]: factory method ‘defaultservlethandlermapping' threw exception; nested exception is java.lang.illegalargumentexception: a servletcontext is required to configure default servlet handling
这时候去检查spring-core和springmvc的两个配置文件，异常提示信息大意是servletcontext需要配置默认servlet处理映射器。一脸懵逼。。。最后发现是两个配置文件的context和包扫描配置有问题，springservlet上下文应该在spring核心配置中( spring_ynyn_dependence.xml )处理，需要使用 <context:annotation-config /> 进行配置。调整后的配置是：
1.sprin框架的配置文件spring_ynyn_dependence.xml调整
将以下配置内容
<context:component-scan base-package="org.byron4j.ynyn.*" >
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.controller" />
</context:component-scan>
替换为：
<context:annotation-config />
2.springmvc的配置文件spring-mvc.xml调整
<context:component-scan base-package="com.crfchina.mcp.*" >
<context:include-filter type="annotation" expression="org.springframework.stereotype.controller" />
</context:component-scan>
再次执行单元测试，ok。
二. mapper注入失败使用@autowired注解: nested exception is org.springframework.beans.factory.nosuchbeandefinitionexception: no qualifying bean of type [org.byron4j.mcp.mapper.taskermapper] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. dependency annotations: {@org.springframework.beans.factory.annotation.autowired(required=true)}
警告: exception encountered during context initialization - cancelling refresh attempt
org.springframework.beans.factory.beancreationexception: error creating bean with name 'tasklistenerconfigcontroller': injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.beancreationexception: could not autowire field: org.byron4j.mcp.service.tasklistenerconfigservice org.byron4j.mcp.controller.tasklistenerconfigcontroller.tasklistenerconfigservice; nested exception is org.springframework.beans.factory.beancreationexception: error creating bean with name 'tasklistenerconfigserviceimpl': injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.beancreationexception: could not autowire field: org.byron4j.mcp.mapper.taskermapper org.byron4j.mcp.service.impl.tasklistenerconfigserviceimpl.taskermapper; nested exception is org.springframework.beans.factory.nosuchbeandefinitionexception: no qualifying bean of type [org.byron4j.mcp.mapper.taskermapper] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. dependency annotations: {@org.springframework.beans.factory.annotation.autowired(required=true)}
at org.springframework.beans.factory.annotation.autowiredannotationbeanpostprocessor.postprocesspropertyvalues(autowiredannotationbeanpostprocessor.java:334)
at org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.populatebean(abstractautowirecapablebeanfactory.java:1210)
at org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.docreatebean(abstractautowirecapablebeanfactory.java:537)
at org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.createbean(abstractautowirecapablebeanfactory.java:476)
at org.springframework.beans.factory.support.abstractbeanfactory$1.getobject(abstractbeanfactory.java:303)
at org.springframework.beans.factory.support.defaultsingletonbeanregistry.getsingleton(defaultsingletonbeanregistry.java:230)
at org.springframework.beans.factory.support.abstractbeanfactory.dogetbean(abstractbeanfactory.java:299)
at org.springframework.beans.factory.support.abstractbeanfactory.getbean(abstractbeanfactory.java:194)
at org.springframework.beans.factory.support.defaultlistablebeanfactory.preinstantiatesingletons(defaultlistablebeanfactory.java:755)
at org.springframework.context.support.abstractapplicationcontext.finishbeanfactoryinitialization(abstractapplicationcontext.java:757)
at org.springframework.context.support.abstractapplicationcontext.refresh(abstractapplicationcontext.java:480)
at org.springframework.web.servlet.frameworkservlet.configureandrefreshwebapplicationcontext(frameworkservlet.java:663)
at org.springframework.web.servlet.frameworkservlet.createwebapplicationcontext(frameworkservlet.java:629)
at org.springframework.web.servlet.frameworkservlet.createwebapplicationcontext(frameworkservlet.java:677)
at org.springframework.web.servlet.frameworkservlet.initwebapplicationcontext(frameworkservlet.java:548)
at org.springframework.web.servlet.frameworkservlet.initservletbean(frameworkservlet.java:489)
at org.springframework.web.servlet.httpservletbean.init(httpservletbean.java:136)
at javax.servlet.genericservlet.init(genericservlet.java:158)
at org.apache.catalina.core.standardwrapper.initservlet(standardwrapper.java:1284)
at org.apache.catalina.core.standardwrapper.loadservlet(standardwrapper.java:1197)
at org.apache.catalina.core.standardwrapper.load(standardwrapper.java:1087)
at org.apache.catalina.core.standardcontext.loadonstartup(standardcontext.java:5231)
at org.apache.catalina.core.standardcontext.startinternal(standardcontext.java:5518)
at org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:150)
at org.apache.catalina.core.containerbase.addchildinternal(containerbase.java:901)
at org.apache.catalina.core.containerbase.addchild(containerbase.java:877)
at org.apache.catalina.core.standardhost.addchild(standardhost.java:649)
at org.apache.catalina.startup.hostconfig.deploywar(hostconfig.java:1081)
at org.apache.catalina.startup.hostconfig$deploywar.run(hostconfig.java:1877)
at java.util.concurrent.executors$runnableadapter.call(executors.java:511)
at java.util.concurrent.futuretask.run(futuretask.java:266)
at java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1142)
at java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:617)
at java.lang.thread.run(thread.java:745)
caused by: org.springframework.beans.factory.beancreationexception: could not autowire field: org.byron4j.mcp.service.tasklistenerconfigservice org.byron4j.mcp.controller.tasklistenerconfigcontroller.tasklistenerconfigservice; nested exception is org.springframework.beans.factory.beancreationexception: error creating bean with name 'tasklistenerconfigserviceimpl': injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.beancreationexception: could not autowire field: org.byron4j.mcp.mapper.taskermapper org.byron4j.mcp.service.impl.tasklistenerconfigserviceimpl.taskermapper; nested exception is org.springframework.beans.factory.nosuchbeandefinitionexception: no qualifying bean of type [org.byron4j.mcp.mapper.taskermapper] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. dependency annotations: {@org.springframework.beans.factory.annotation.autowired(required=true)}
at org.springframework.beans.factory.annotation.autowiredannotationbeanpostprocessor$autowiredfieldelement.inject(autowiredannotationbeanpostprocessor.java:561)
at org.springframework.beans.factory.annotation.injectionmetadata.inject(injectionmetadata.java:88)
at org.springframework.beans.factory.annotation.autowiredannotationbeanpostprocessor.postprocesspropertyvalues(autowiredannotationbeanpostprocessor.java:331)
... 33 more
解决第一个问题，单元测试后，部署该项目启动时，疯狂报错nested exception is org.springframework.beans.factory.nosuchbeandefinitionexception: no qualifying bean of type [org.byron4j.mcp.mapper.taskermapper] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. dependency annotations: {@org.springframework.beans.factory.annotation.autowired(required=true)}。多次检查，发现springmvc配置文件中也需要加载mybatis配置，前面我仅仅在spring上下文核心配置文件(spring_ynyn_dependence.xml)中做了配置。
在spring-mvc.xml文件最后引入加载mybatis配置：
<import resource="classpath*:byron4j_ynyn_datasource.xml"/>
重新部署应用启动服务无措，发起请求验证ok。