springMVC学习日志一

<servlet>
         <!-- springmvc的配置文件必须在【servlet-name】-servlet.xml -->
      <servlet-name>springMVC</servlet-name>
      <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
       <!-- DispatcherServlet加载指定的springmvc的配置文件 -->
       <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springMVC-annotation.xml</param-value>
       </init-param>
  </servlet>
  <servlet-mapping>
       <servlet-name>springMVC</servlet-name>
       <url-pattern>*.do</url-pattern>
  </servlet-mapping>

<?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.xsd">
    <!-- 配置一个handlerMapping 如果自己不配置handlerMapping 会默认有一个handlerMapping 
        bean:表示对于什么什么的一个类
        ctrl+shift+t:查找某个类的源码及路径
    -->
    <bean  class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean> 
   
    <!-- 注册自己的controller类  -->      
   <bean name="/my.do" class="com.zhiyou100.xz.controller.MyController1"></bean> 

    <!-- 配置视图解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
         <property name="prefix" value="/WEB-INF/view/"/>
         <property name="suffix" value=".jsp"/>
    </bean>
</beans>

public class MyController1 extends AbstractController{

    @Override
    protected ModelAndView handleRequestInternal(HttpServletRequest arg0, HttpServletResponse arg1) throws Exception {
        ModelAndView mv=new ModelAndView();
        mv.setViewName("login");// /WEB-INF/view/login.jsp
        mv.addObject("username", "Hello World!");//功能类似于setAttribute 在request中
        System.out.println("====mycontroller1====");
        return mv;
    }

}

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller  //等价于<bean class="com.zhiyou100.xz.controller.annotation.MyController1">
public class MyController1 {
        @RequestMapping("/list.do") //RequestMapping:表示的就是你的访问地址
        public String list() {
            System.out.println("查询所有");
            return "login";
        }
        
}

import com.zhiyou100.xz.controller.bean.User;

@Controller
@RequestMapping("/user") 
public class MyController1 {
    @RequestMapping("/list.do") //RequestMapping:表示的就是你的访问地址
    public String list(String name,int age) { //参数一定要和请求的参数名相同
        System.out.println("name:"+name+";age:"+age);
        return "login";
    }
    @RequestMapping("/list2.do") //RequestMapping:表示的就是你的访问地址
    public String list(User user) { //参数一定要和请求的参数名相同
        System.out.println(user);   //请求的参数名要和实体类中的属性名相同
        return "login";
    }
}