Maven+Spring+SpringMVC+Mybatis中的常见错误

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userEmailController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.wf.emailservice.backend.service.core.IUserEmailService com.wf.emailservice.backend.web.controller.UserEmailController.userEmailService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userEmailService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.wf.emailservice.backend.service.core.IVivofsService com.wf.emailservice.backend.service.core.impl.UserEmailService.vivofsService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'vivofsService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.apache.http.impl.client.CloseableHttpClient com.wf.emailservice.backend.service.core.impl.VivofsService.httpClient; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.apache.http.impl.client.CloseableHttpClient] 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)}

错误形式一: No qualifying bean of type [org.apache.http.impl.client.CloseableHttpClient] 无法找到相应的bean

 No qualifying bean of type [org.apache.http.impl.client.CloseableHttpClient] 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)}

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userEmailController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.vivo.emailservice.backend.service.core.IUserEmailService com.vivo.emailservice.backend.web.controller.UserEmailController.userEmailService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userEmailService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.vivo.emailservice.backend.service.core.IVivofsService com.vivo.emailservice.backend.service.core.impl.UserEmailService.vivofsService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'vivofsService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.apache.http.impl.client.CloseableHttpClient com.vivo.emailservice.backend.service.core.impl.VivofsService.httpClient; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.apache.http.impl.client.CloseableHttpClient] 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)}

这里主要原因是缺乏HttpClient的配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd">

    <!-- 管理连接池 -->
    <bean id="httpClientConnectionManager" class="org.apache.http.impl.conn.PoolingHttpClientConnectionManager"
          destroy-method="close">
        <property name="maxTotal" value="150"/>
        <!--目标主机的默认最大连接数-->
        <property name="defaultMaxPerRoute" value="100"/>
    </bean>

    <!-- httpClient工厂-->
    <bean id="httpClientBuilder" class="org.apache.http.impl.client.HttpClientBuilder">
        <property name="connectionManager" ref="httpClientConnectionManager"/>
    </bean>

    <!-- httpClient对象-->
    <bean id="httpClient" factory-bean="httpClientBuilder" factory-method="build" scope="prototype">
    </bean>

    <!-- 请求配置工厂-->
    <bean id="requestConfigBuilder" class="org.apache.http.client.config.RequestConfig.Builder">
        <!--http连接建立的超时时间-->
        <property name="connectTimeout" value="1000"/>
        <!--从连接池拿取连接的超时时间-->
        <property name="connectionRequestTimeout" value="10"/>
        <!--等待响应数据的超时时间-->
        <property name="socketTimeout" value="1000"/>
    </bean>

    <!-- 请求配置的对象 -->
    <bean id="requestConfig" factory-bean="requestConfigBuilder" factory-method="build">
    </bean>


</beans>

 2. Non-resolvable parent POM: Failure to find:

   可能存在的第一个问题: 就是没有设置maven的版本，setting.xml路径/

   

可能存在第二个问题就是 子pom.xml文件都要设置相应的父pom.xml文件的路径

3. 找不到系统配置文件:xxxx.properties

   原因在于:Idea软件右侧的maven的profile没有勾选相应的环境