本人spring新手,初玩是spring的感覺就是坑爹的配置文件,爲此寫此文爲正在苦苦掙扎於spring配置文件的同學簡單的解釋下配置文件。
歡迎拍磚。
先來看web.xml配置文件:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<display-name></display-name>
<welcome-file-list>
<welcome-file>login.jsp</welcome-file>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<!-- 聲明spring的核心類(其實是一個servlet,所以也逃不了要聲明),同時此處載入spring的配置文件 -->
<servlet>
<servlet-name>dipatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</init-param>
</servlet>
<!-- 對那種請求進行轉發 -->
<servlet-mapping>
<servlet-name>dipatcher</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<!-- 定義編碼過濾器,對中文等進行重新編碼,去除該過濾器則中文亂碼 -->
<filter>
<filter-name>Set Character Encoding</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>utf8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>Set Character Encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
下面我們在來看看applicationContext.xml配置文件:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
<!-- 表示層的聲明:主要關於表示層前綴路徑(如下:/view/)和後綴路徑(如下:.jsp). 這麼聲明代表你的表示層文件都在/view/下,而且都是.jsp文件 -->
<!-- efinition of View Resolver -->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass">
<value>org.springframework.web.servlet.view.JstlView</value>
</property>
<property name="prefix">
<value>/view/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
<!--此處用於聲明action,在此下方要一一列出action的配置 -->
<!-- Request Mapping -->
<bean id="urlMapping"
class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="/regAction.do">regAction</prop>
<prop key="/loginAction.do">loginAction</prop>
</props>
</property>
</bean>
<!-- Action Definition -->
<bean id="regAction" class="org.lee.springmvc.demo.RegAction">
<property name="commandClass">
<value>org.lee.springmvc.demo.RegInfo</value>
</property>
<property name="error_view">
<value>error</value>
</property>
<property name="success_view">
<value>success</value>
</property>
</bean>
<bean id="loginAction" class="org.lee.springmvc.demo.LoginAction">
<!-- 此類用於提取自動提取表單並填充該類(因此,沒有get、set是會報錯的),這是非常方便的 -->
<property name="commandClass">
<value>org.lee.springmvc.demo.RegInfo</value>
</property>
<property name="error_view">
<value>error</value>
</property>
<property name="success_view">
<value>loginSuccess</value>
</property>
</bean>
</beans>
至此,簡單解釋了配置文件。另附一個spring mvc的demo ,有簡單的註冊和登錄功能(請用Myeclipse打開)。