springMVC的各种HandlerMapping：（默认有BeanNameUrl和AnnotationHandlerMapping）
1.默认的BeanNameUrlHandlerMapping（通过name查找Controller）用Controller的name来访问
2.ControllerClassNameHandlerMapping（通过Controller类的名字查找Controller。在网页访问除了Controller类首字母大写，其他的（Controller1）都小写）
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<?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" 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"> <bean class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping"></bean>
<!-- 配置Controller --> <bean ></bean> <bean ></bean> <!-- 配置视图解析器：ViewResolver --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/"/> <property name="suffix" value=".jsp"/> </bean> </beans> |
3.SimpleUrlHandlerMapping（通过SimpleUrlHandlerMapping的mappings属性（property）和Controller的id映射关系来访问）
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<?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" 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"> <bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"> <property name="mappings"> <props> <prop key="a.do">m1</prop> <prop key="b.do">m2</prop> </props> </property> </bean>
<!-- 配置Controller --> <bean ></bean> <bean ></bean> <!-- 配置视图解析器：ViewResolver --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/"/> <property name="suffix" value=".jsp"/> </bean> </beans> |
4.使用注解代替配置信息（annotation），需要添加头部xmlnx：信息（可以找文档）还需要添加spring-aop jar包
1.包扫描：扫描注解所在的包（扫描带注解的Controller类）
用<context::component-scan>标签
2.开启注解驱动：会开启AnnotationHandlerMapping
用<mvc:annotation-driver/>标签
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<?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"> <!-- 1.包扫描：扫描注解所在的包（带注解的Controller类所在的包） --> <context:component-scan base-package="com.zhiyou100.kfs.controller"></context:component-scan> <!-- 2.开启注解驱动：会开启AnnotationHandlerMapping --> <mvc:annotation-driven/> <!-- 配置视图解析器：ViewResolver --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/"/> <property name="suffix" value=".jsp"/> </bean> </beans> |
对应的Controller
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package com.zhiyou100.kfs.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.servlet.ModelAndView; @Controller @RequestMapping("/myController1") public class MyControler3 {
@RequestMapping("/list") public ModelAndView list() { ModelAndView mv=new ModelAndView("login"); mv.addObject("name","login3<br/>hello!"); return mv; } } |