报告在 XML 应用程序上下文中定义的自定义架构 bean 注入的错误类型。

示例:


  public class SimpleBean{}

  <beans ...>
    <bean class="SimpleBean" id="simpleBean"/>
       <mvc:annotation-driven
         conversion-service="simpleBean"      <!-- reports "Bean must be of 'org.springframework.core.convert.ConversionService' type" -->
         message-codes-resolver="simpleBean"  <!-- 报告 “Bean 必须为 ‘org.springframework.validation.MessageCodesResolver' 类型" -->
         validator="simpleBean"               <!-- 报告 "Bean 必须为 'org.springframework.validation.Validator' 类型" -->
    />
  </beans>