web.xml文件配置
创建好一个SpringMVC项目后，需要在需要在WB-INF文件夹下配置web.xml文件
<?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_3_1.xsd" version="3.1"> <display-name>SpringMVCdemo</display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <!--加载springMVC的配置文件--> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:springMVC.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <servlet> <servlet-name>dispatcher</servlet-name> <!--中央核心控制器--> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcher</servlet-name> <!--请求--> <url-pattern>*.do</url-pattern> </servlet-mapping> <!--过滤器，编码格式--> <filter> <filter-name>characterEncodingFilter</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> </filter> <filter-mapping> <filter-name>characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping></web-app>
springMVC.xml文件配置
在src文件夹下创建springMVC.xml文件
<?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:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" 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/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.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"> <!--自动扫描上下文包--> <context:component-scan base-package="cn.zhc.*"></context:component-scan> <!--自动开启MVC模式注解--> <mvc:annotation-driven></mvc:annotation-driven> <!--将请求映射到标注@RequestMapping注解的控制器和处理方法上--> <mvc:default-servlet-handler></mvc:default-servlet-handler> <!--视图解析器--> <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!--前缀后缀--> <property name="prefix" value="/"></property> <property name="suffix" value=".jsp"></property> </bean></beans>
第一个SpringMVC实例
index.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %><html> <head> <title>$Title$</title> </head> <body> 哈哈哈哈哈 </body></html>
测试类：
package cn.zhc.test;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;@Controllerpublic class Test { @RequestMapping("/hello.do") public String hello(){ System.out.println("hhhhhhhhhhhh"); return "index"; }}
在项目运行后，在前端页面路径后输入/hello.do，控制台会输出hhhhhhhhhhhh
参数传递
view到controller 四种方式
@RequestMapping("/hello.do") public String hello(String name){ //路径后加?name= 不加会传null System.out.println(name); return "index"; } //Controller方法方法中参数前加@RequestParam进行直接入参 @RequestMapping("/hello.do") public String hello(@RequestParam String name){ //不传参会请求错误400 System.out.println(name); return "index"; } @RequestMapping("/hello.do") public String hello(@RequestParam(value = "name" ,required = false) String name){ //required是否需要传参 System.out.println(name); return "index"; } @RequestMapping(value = "/hello.do",method = RequestMethod.GET,params = "name") public String hello(String name){ //不传参会请求错误400 System.out.println(name); return "index"; }
controller到view 三种方式
@RequestMapping("/hello.do") public ModelAndView hello(){ ModelAndView mv = new ModelAndView(); mv.addObject("name","zhu");//添加模型数据 mv.setViewName("index");//设置视图名称 return mv; } @RequestMapping("/hello.do") public String hello(Model model){ model.addAttribute("name","huai"); model.addAttribute("chang"); //在model中若不指定key，则使用默认对象的类型作为key return "index"; } @RequestMapping("/hello.do") public String hello(Map<String,Object> map){ map.put("name","lisa"); return "index"; }
总结
到此这篇关于Spring MVC文件配置以及参数传递的文章就介绍到这了,更多相关SpringMVC文件配置参数传递内容请搜索以前的文章或继续浏览下面的相关文章希望大家以后多多支持！
在认识你之后，我才发现自己可以这样情愿的付出……
