基于配置文件xml方式，
配置springmvc步骤：
1.在pom文件中引入jar包：
<!--导入springmvc的jar包-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.1.RELEASE</version>
</dependency>
2. 在web.xml文件中添加servlet
<servlet>
<servlet-name>SpringMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!--配置springmvc.xml的路径-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
3. 创建Handler接口实现类，
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;
/**
* Created by Intellij IDEA.
* User: 陈亚萌
* Date: 2019/9/3
*/
public class MyHandler implements Controller {
@Override
public ModelAndView handleRequest(javax.servlet.http.HttpServletRequest httpServletRequest, javax.servlet.http.HttpServletResponse httpServletResponse) throws Exception {
//装在模型数据和逻辑视图
ModelAndView modelAndView=new ModelAndView();
//添加模型数据
modelAndView.addObject("name","tom");
//添加逻辑视图
modelAndView.setViewName("show");
return modelAndView;
}
}
3. 在resources中创建springmvc.xml文件，关联起来
<?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HandlerMapping，将url请求映射到Handler-->
<bean id="handlerMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<!--配置mapping-->
<property name="mappings">
<props>
<!--配置test请求对应的handler-->
<prop key="/test">testHandler</prop>
</props>
</property>
</bean>
<!--配置-->
<bean id="testHandler" class="MyHandler"></bean>
<!--配置视图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!--配置前缀-->
<property name="prefix" value="/"></property>
<!--配置后缀-->
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
基于注解实现springmvc
同上
同上
-
springmvc中的配置
<?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">
<!--将annotationHandler自动扫描到ioc容器-->
<context:component-scan base-package="com.imooc.handler"></context:component-scan>
<!--配置视图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!--配置前缀-->
<property name="prefix" value="/"></property>
<!--配置后缀-->
<property name="suffix" value=".jsp"></property>
</bean>
</beans> -
创建controller，并加注解
package com.imooc.handler; import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView; import javax.jws.WebParam;
import java.util.Map; /**
* Created by Intellij IDEA.
* User: 陈亚萌
* Date: 2019/9/3
*/
@Controller
public class AnnotationHandler { /**
* 业务方法：ModelAndView完成数据的传递和视图的解析
*/
@RequestMapping("/model")
public ModelAndView modelAndViewTest(){
//创建ModelAndView对象
ModelAndView modelAndView=new ModelAndView();
//填充数据
modelAndView.addObject("name","cym");
//设置逻辑视图
modelAndView.setViewName("show");
return modelAndView;
} /*
* 业务方法：使用Model传值，String进行视图解析
* */
@RequestMapping("modelAndTest")
public String modelTest(Model model){
//填充模型数据
model.addAttribute("name","yyh");
//设置逻辑视图
return "show";
}
/*
* 业务方法：Map传值：String，进行视图解析
* */
@RequestMapping("map")
public String MapTest(Map<String,String> map){
//设置模型数据
map.put("name","cymhhh");
//设置逻辑视图
return "show"; } }
<!--处理中文乱码-->
<filter>
<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>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--设置访问静态资源-->
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.css</url-pattern>
</servlet-mapping>
记得在配置的时候什么地方加/*,什么地方不加 *
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>