SpringMVC優點
性能比struts2好
簡單 便捷 易學
和Spring無縫集成(使用spring ioc aop)
約定優於配置
可以簡單進行Junit測試
支持Restful風格
本地化、國際化、數據驗證、類型轉換
攔截器
一、導入包
前端
二、配置springMVC java
<?xml version="1.0" encoding="UTF-8"?> <web-app version="3.0" 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_3_0.xsd"> <display-name></display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <!--1.配置springMVC前端控制器(是總的控制中心 被攔截的url會匯聚到該servlet) --> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc-servlet.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> <!-- tomcat啓動後當即加載 --> </servlet> <!--配置Spring --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc-servlet.xml</param-value> </context-param> <!--2. 配置spring攔截的url模板 以.do結尾的url--> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> <!--3. 註冊配置文件讀取器,監聽spring配置文件的變化 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 指定spring配置文件位置 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc-servlet.xml</param-value> </context-param> <!--5. 編碼字符集統一爲UTF-8(過濾器) --> <filter> <display-name>encodingFilter</display-name> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> </web-app>
package wym.controler; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.Controller; public class FirstSpringMvc implements Controller { @Override public ModelAndView handleRequest(HttpServletRequest arg0, HttpServletResponse arg1) throws Exception { // TODO Auto-generated method stub ModelAndView mv=new ModelAndView(); mv.addObject("msg","你好。。 springmvc");///WEB-INF/jsp/hello.jsp mv.setViewName("hellow"); return mv; } }