SpringMVC环境搭建

  1. 导入jar包

image-20191221152428789

  1. 配置web.xml文件

    image-20191221184917575

  2. 配置SpringMVC配置文件

    image-20191221195312998

  3. 编写控制器Controller

    image-20191221200527283

字符编码过滤器

  • filter-class：org.springframework.web.filter.CharacterEncodingFilter
  • url-pattern配置为/*从而拦截一切请求，对其进行设置字符编码
  • 设置初始化参数encoding的值，配置字符编码格式

视图解析器

  • SpringMVC 会提供默认视图解析器.
  • 程序员自定义视图解析器 prefix-前缀 suffix-后缀
  • 如果希望不执行自定义视图解析器,在方法返回值前面添加forward:或 redirect:
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<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">
    <!--配置前端控制器-->
    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!--修改springMVC配置文件路径和名称-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springmvc.xml</param-value>
        </init-param>
        <!--自启动-->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <!--拦截除了jsp外的所有请求-->
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>
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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">
    <!--扫描注解-->
    <context:component-scan base-package="com.kylin.controller"></context:component-scan>
    <!--注解驱动-->
    <!-- org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping -->
    <!-- org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter -->
    <mvc:annotation-driven></mvc:annotation-driven>
    <!--释放静态资源-->
    <!---->
    <mvc:resources mapping="/js/**" location="/js/"></mvc:resources>
    <mvc:resources mapping="/css/**" location="/css/"></mvc:resources>
    <mvc:resources mapping="/images/**" location="/images/"></mvc:resources>
    <!--配置前端控制器-->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/"></property>
    </bean>
</beans>
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@Controller 
public class DemoController { 
	@RequestMapping("/demo") 
	public String demo(){ 
		System.out.println("执行 demo"); 
		return "main.jsp"; 
		} 
		
	@RequestMapping("/demo2") 
	public String demo2(){ 
		System.out.println("demo2"); 
		return "main1.jsp"; 
		} 
	}