org.xml.sax.SAXParseException; cvc-complex-type.2.4.c：匹配的通配符是严格的，但没有声明

Question

我想在这里做的是让邮件发件人从我的工作Java代码。

我看了一个类似的问题，并删除了这里建议的弹簧版本号cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'mvc:annotation-driven'，但我仍然看到相同的错误。

Mar 21, 2017 9:04:53 PM org.apache.catalina.core.StandardContext listenerStart 
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener 
org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 10 in XML document from ServletContext resource [/WEB-INF/applicationcontext.xml] is invalid; nested exception is org.xml.sax.SAXParseException; lineNumber: 10; columnNumber: 86; cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'bean'. 
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:399) 
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:336) 
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:304) 
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:181) 
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:217) 
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:188) 
    at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:125) 
    at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:94) 
    at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:129) 
    at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:604) 

我的applicationContext如下：

<?xml version="1.0" encoding="UTF-8"?> 
<beans:beans xmlns="http://www.springframework.org/schema/mvc" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans" 
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" 
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd 
    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/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd"> 

    <bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl"> 
    <property name="host" value="postman.mx.domain.com"/> 
    <property name="username" value="[email protected]"/> 
    <property name="javaMailProperties" > 
     <props> 
      <prop key="mail.smtp.auth" >false</prop> 
     </props> 
    </property> 
</bean> 

我也有我的pom.xml对邮件的javax条目如下：

<dependency> 
     <groupId>javax.mail</groupId> 
     <artifactId>mail</artifactId> 
     <version>1.4.2</version> 
    </dependency> 

Answer 1

添加适当的命名空间通过更改bean元素，

<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl"> 

到

<bean xmlns="http://www.springframework.org/schema/beans" 
     id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl"> 

，你的错误会自行消失。