1、java.io.FileNotFoundException: Could not open ServletContext resource
不能加载ServletContext的用法是配置到web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>SpringMVCLesson</display-name> <servlet> <servlet-name>SpringMVCLesson</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springservlet-config.xml</param-value> </init-param> <load-on-startup>1</load-on-startup><!-- load-on-startup必须放在最后 --> </servlet> <!-- Spring MVC配置文件结束 --> <servlet-mapping> <servlet-name>SpringMVCLesson</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
解决办法：
更改xml名字为 {ServletContext}-servlet.xml
<?xml version="1.0" encoding="ISO-8859-1"?> <web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.4" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <!--<start id="servlet_DispatcherServlet"/>--> <servlet> <servlet-name>SpringMVCLesson</servlet-name> <servlet-class> org.springframework.web.servlet.DispatcherServlet </servlet-class> <load-on-startup>1</load-on-startup> </servlet> <!--<end id="servlet_DispatcherServlet"/>--> <servlet-mapping> <servlet-name>SpringMVCLesson</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
位置仍为/WEB-INF/下
2、org.springframework.web.servlet.DispatcherServlet noHandlerFound
解决办法：
SpringMVCLesson-servlet.xml增加
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/views/"></property> <property name="suffix" value=".jsp"></property> </bean>
这个工程中还有个特殊问题是Source Folder设置错误导致java没有生成class文件
3、其它xml:xsi没有配置正确导致配置的元素没有被识别而报错
<?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:util="http://www.springframework.org/schema/util" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:p="http://www.springframework.org/schema/p" xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/views/"></property> <property name="suffix" value=".jsp"></property> </bean> <!--<start id="spring_component_scan" />--> <context:component-scan base-package="com.demo.web.controllers" /> <!--<end id="spring_component_scan" />--> <!--<start id="mvc_annotatedcontrollers" />--> <mvc:annotation-driven/> <!--<end id="mvc_annotatedcontrollers" />--> <!--<start id="mvc_resources"/>--> <mvc:resources mapping="/resources/**" location="/resources/" /> <!--<end id="mvc_resources"/>--> </beans>
4、Spring中CoC(Convention over Configration)约定优于配置的理解又加深了
