【错误解决】The prefix "context" for element "context:component-scan" is not bound

在配置spring相关的applicationContext.xml文件时报以上错误

原因是缺失context的namespace。

http://www.springframework.org/schema/context

 同时后面的 xsi:schemaLocation也要加上

 http://www.springframework.org/schema/context
 http://www.springframework.org/schema/context/spring-context-3.0.xsd

 比较全的namespace如下：

<?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:jee="http://www.springframework.org/schema/jee" 
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
           http://www.springframework.org/schema/mvc
           http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd  
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-3.0.xsd
           http://www.springframework.org/schema/aop
           http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
           http://www.springframework.org/schema/tx
           http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
           http://www.springframework.org/schema/jee 
           http://www.springframework.org/schema/jee/spring-jee-2.0.xsd">
</beans>