今天搭建spring mvc的系统,成功启动后无法访问,提示如下:
No mapping found for HTTP request with URI [/admin/log.do] in DispatcherServlet 。
原因:<context:component-scan base-package="com.ecp.web"/> 这一段必须写在*-servlet.xml文件中。否则就算你在配置文件中引入了所有的头文件,spring都不会管你长得多好看!
警示:如果我们的项目采用了springMVC,那么,组件扫描、mybatis的dao扫描最好都在这个 *-servlet.xml中指定。不然就会出现在启动时找不到Bean.
<?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:aop="http://www.springframework.org/schema/aop" xmlns:p="http://www.springframework.org/schema/p"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
<mvc:annotation-driven />
<!-- 多个以逗号分隔 -->
<context:component-scan base-package="com.ecp.web"/>
<mvc:resources location="/ext-3.0.0/**" mapping="/ext-3.0.0/" />
<mvc:resources location="/ecpres/**" mapping="/ecpres/" />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/pages/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<!--扫描自动注入DAO -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 多个以逗号分隔 -->
<property name="basePackage" value="com.ecp.web.dao" />
</bean>
</beans>
For myself: 添加新的模块,必须在*-servlet.xml配置文件中 配置controller的路径 、services的路径 ,以及mybatis的dao路径 。