spring mvc 配置

1、/WEB-INF/web.xml

 

 <servlet>
        <servlet-name>spmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup> 
    </servlet>
    <servlet-mapping>
        <servlet-name>spmvc</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>

2./WEB-INF/spmvc-servlet.xml

<?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:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-3.0.xsd">
	<!--  自动扫描bean，把作了注解的类转换为bean 	-->
    <context:component-scan base-package="com.cn.pring3" />
	  <!--  启动Spring MVC的注解功能，完成请求和注解POJO的映射   -->
    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
     <!--  处理Mutipart文件上次的bean    -->
    <bean id="multipartResolver"
         class="org.springframework.web.multipart.commons.CommonsMultipartResolver"
         p:defaultEncoding="utf-8" />
    <bean id="irViewResolver"        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/" />
        <property name="suffix" value=".jsp" />
    </bean>
</beans> 

 

3.UserController.java

package com.cn.pring3.controllers;

import com.cn.pring3.beans.User;
import javax.servlet.http.HttpServletRequest;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.view.RedirectView;

/**
 * @author dongji
 * 控制器类，加上@Contorller即可，不需要继承其他任何类
 */
@Controller
@RequestMapping("/user")//基路径
public class UserController {

//    private User user;
//    private int id;

//    @ModelAttribute("user")//AttributeName=user
//    public User initUser(HttpServletRequest request) {
//        user = new User();
//        user.setId(Integer.parseInt(request.getParameter("user.id")));
//        user.setName(request.getParameter("user.name"));
//        return user;
//    }
//
//    @ModelAttribute("id")
//    public int initId(HttpServletRequest request) {
//        id = Integer.parseInt(request.getParameter("id"));
//        return id;
//    }
    @RequestMapping(value = "/getName_{name}.do")
    //{name}动态参数对应于name属性 通过@PathVariable注入到name
    public ModelAndView getName(@PathVariable String name) {
        ModelAndView mav = new ModelAndView("index");
        mav.addObject("name", name);
        return mav;
    }

    @RequestMapping("reg.do")
    public String addUI() {
        return "reg";
    }

    @RequestMapping("save.do")
    public String add(@RequestParam("id") int id,@ModelAttribute("user") User user,  Model model) {
//        model.addAttribute("id", id);
        System.out.println("user=" + user.getId()+ ",id=" + id);
        user = new User();
        user.setName("1");
        id = 123;
        return "index";
    }

    @RequestMapping("login.do")
    public ModelAndView login(@ModelAttribute User user) {
        ModelAndView mav = new ModelAndView(new RedirectView("manage.do"));
        if (!"admin".equals(user.getName())) {
            mav = new ModelAndView("error");
        }
        return mav;
    }

    @RequestMapping("manage.do")
    public String manage() {
        return "list";
    }

    @RequestMapping("/anno.do")
    public ModelAndView show(HttpServletRequest request, @RequestParam int id) {
        ModelAndView mav = new ModelAndView("index");
        mav.addObject("message", "welcome annotation demo");
        mav.addObject("u", id);
        return mav;
    }
}