springmvc的注解开发必须掌握,现在都用注解了,也是一个很简单的示例,大家可以看一下,如果有问题联系我。
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<!-- 1.配置前端控制器 -->
<servlet>
<servlet-name>springmvc-dispatcherservlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- contextConfigLocation配置springmvc加载的配置文件(处理器映射器、适配器等)-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/springmvc-dispatcherservlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc-dispatcherservlet</servlet-name>
<!-- url-pattern 的三种配置方式:
第一种:*.action :访问.action结尾的资源时,由 DispatcherServlet 解析
第二种:/ :访问所有资源都由 DispatcherServlet 解析,对于html、css、js、image等静态资源,需要配置不让 DispatcherServlet 解析
第三种:/* :注意这种方式错误,因为使用这种配置方式,最终咬转发到一个jsp页面时,仍然会由 DispatcherServlet 解析 jsp 地址,
不能根据jsp页面找到处理的handler,会报错。-->
<url-pattern>/</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
springmvc配置文件springmvc.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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!-- 5.配置视图解析器ViewResolver-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="prefix" value="/WEB-INF/pages/"/>
<property name="suffix" value=".jsp"/>
</bean>
<!--<!– 4.配置controller,非注解 –>-->
<!--<bean id="userListId" name="/userList" class="cn.notemi.controller.UserTestController"/>-->
<!--<bean id="userListId2" class="cn.notemi.controller.UserTestController2"/>-->
<!-- 4.扫描controller注解,多个包中间使用半角逗号分隔,注解 -->
<context:component-scan base-package="cn.notemi.controller"/>
<!--<!– 3.处理映射器(非注解两种,可并存) –>-->
<!--<!– (1)根据bean的name进行查找Handler 将action的url配置在bean的name中 –>-->
<!--<bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping" />-->
<!--<!– (2)简单url映射 –>-->
<!--<bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">-->
<!--<property name="mappings">-->
<!--<props>-->
<!--<prop key="/userList1">userListId</prop>-->
<!--<prop key="/userList2">userListId</prop>-->
<!--<prop key="/userList3">userListId2</prop>-->
<!--</props>-->
<!--</property>-->
<!--</bean>-->
<!--<!– 2.处理器适配器(非注解的两种) –>-->
<!--<!– (1)要求handler实现controller接口–>-->
<!--<bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>-->
<!--<!– (2)要求handler实现HttpRequestHandler接口 –>-->
<!--<bean class="org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter"/>-->
<!--<!– 3.注解映射器–>-->
<!--<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>-->
<!--<!– 2.注解适配器 –>-->
<!--<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/>-->
<!-- 2/3使用 mvc:annotation-driven代替上边注解映射器和注解适配器配置
mvc:annotation-driven默认加载很多的参数绑定方法,比如json转换解析器就默认加载了,如果使用mvc:annotation-driven不用配置上
边的RequestMappingHandlerMapping和RequestMappingHandlerAdapter
实际开发时使用mvc:annotation-driven
-->
<mvc:annotation-driven></mvc:annotation-driven>
</beans>
controller开发
package cn.notemi.controller;
import cn.notemi.po.User;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.ArrayList;
import java.util.List;
/**
* Created by Flicker on 2017/1/17 0017.
*/
@Controller
public class UserTestController{
@RequestMapping(value = "/user")
public ModelAndView handleRequest(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws Exception {
//商品列表
List<User> userList = new ArrayList<User>();
User user1 = new User();
user1.setId(1);
user1.setUsername("张三");
user1.setPassword("123");
user1.setEmail("1@qq.com");
User user2 = new User();
user2.setId(2);
user2.setUsername("李四");
user2.setPassword("123");
user2.setEmail("1@qq.com");
userList.add(user1);
userList.add(user2);
//创建modelAndView准备填充数据、设置视图
ModelAndView modelAndView = new ModelAndView();
//填充数据
modelAndView.addObject("userList", userList);
//视图
modelAndView.setViewName("user/index");
return modelAndView;
}
}
视图开发
<%--
Created by IntelliJ IDEA.
User: Administrator
Date: 2017/1/17 0017
Time: 下午 2:55
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<html>
<head>
<title>Title</title>
</head>
<body>
<table>
<c:forEach items="${userList}" var="userList">
<tr>
<td>${userList.id}</td>
<td>${userList.username}</td>
<td>${userList.password}</td>
<td>${userList.email}</td>
</tr>
</table>
</c:forEach>
</body>
</html>
附件:springmvc-mybatis-maven-demo注解1.zip
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