第一个springmvc项目HelloSpringMVC
作者:互联网
一、配置方式
1、创建一个父项目,新建一个Module,如springmvc-03,完成后选择已创建的module右击选Add Framwork Support添加web支持
2、确定导入了SpringMVC依赖(在pom.xml文件中添加springmvc和servlet依赖)
说明:若父项目中添加了这些依赖,子项目继承父项目可以不用在自己的pom文件中再次添加
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.2.12.RELEASE</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
</dependencies>
3、配置web.xml,注册DispatcherServlet
<?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DispatcherServlet:这个是springmvc的核心;请求分发器,前端控制器-->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc-servlet.xml</param-value>
</init-param>
<!-- 启动级别: 跟服务器一起启动 -->
<load-on-startup>1</load-on-startup>
</servlet>
<!-- springmvc中/ 与/*是不同的
/:匹配除jsp之外的所有请求
/*:包括jsp在内的所有请求-->
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
4.在resoueces编写SpringMVC 的 配置文件!如名称:springmvc-servlet.xml 需同web.xml中配置的中classpath值相同
<?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">
<!--配置处理器映射器-->
<bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>
<!--配置处理器适配器-->
<bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>
<!--配置视图解析器:DispatcherServlet给他的ModelAndView-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="InternalResourceViewResolver">
<!--前缀-->
<property name="prefix" value="/WEB-INF/jsp/"/>
<!--后缀-->
<property name="suffix" value=".jsp"/>
</bean>
<bean id="/hello" class="com.zhou.controller.HelloController"/>
</beans>
5.写Contoroller,使用ModelAndView封装数据和视图对象
public class HelloController implements Controller {
@Override
public ModelAndView handleRequest(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws Exception {
ModelAndView mv = new ModelAndView();
//业务代码
String result="HelloSpringMVC";
mv.addObject("msg",result);
//视图跳转
mv.setViewName("test");
return mv;
}
}
6.将Controller交给SpringIOC容器管理(在springmvc-servlet.xml中注册Bean)
<bean id="/hello" class="com.zhou.controller.HelloController"/>
7、编写前端视图页面
<%--
Created by IntelliJ IDEA.
User: mm
Date: 2022/5/7
Time: 10:58
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
${msg}
</body>
</html>
8、发布项目,启动Tomcat后,在浏览器输入localhost:8080/hello访问页面
二、注解方式(推荐)
1、创建一个新的空的maven项目(父项目),新建一个module,如springmvc-02-annotation
2、添加web支持(同方案一),右击新建module,点击 Add Framwork Support添加web支持
3、在pom.xml中导入springmvc和servlet依赖
<!--1.注册DispatcherServlet-->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!--关联一个springmvc的配置文件:【servlet-name】-servlet.xml-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc-servlet.xml</param-value>
</init-param>
<!--启动级别-1-->
<load-on-startup>1</load-on-startup>
</servlet>
<!--/ 匹配所有的请求;(不包括.jsp)-->
<!--/* 匹配所有的请求;(包括.jsp)-->
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
4、在resoueces编写SpringMVC 的 配置文件!如名称:springmvc-servlet.xml 需同web.xml中配置的中classpath值相同
<?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">
<!-- 自动扫描包,让指定包下的注解生效 ,由IOC容器统一管理-->
<context:component-scan base-package="com.zhou.controller"/>
<!-- 让springmvc不处理静态资源-->
<mvc:default-servlet-handler/>
<!-- 支持MVC注解驱动-->
<mvc:annotation-driven/>
<!--配置视图解析器:DispatcherServlet给他的ModelAndView-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="InternalResourceViewResolver">
<!--前缀-->
<property name="prefix" value="/WEB-INF/jsp/"/>
<!--后缀-->
<property name="suffix" value=".jsp"/>
</bean>
</beans>
5、写controller,使用ModelAndView封装数据模型和对象
<?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">
<!-- 自动扫描包,让指定包下的注解生效 ,由IOC容器统一管理-->
<context:component-scan base-package="com.zhou.controller"/>
<!-- 让springmvc不处理静态资源-->
<mvc:default-servlet-handler/>
<!-- 支持MVC注解驱动-->
<mvc:annotation-driven/>
<!--配置视图解析器:DispatcherServlet给他的ModelAndView-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="InternalResourceViewResolver">
<!--前缀-->
<property name="prefix" value="/WEB-INF/jsp/"/>
<!--后缀-->
<property name="suffix" value=".jsp"/>
</bean>
</beans>
6、编写前端视图页面
<%--
Created by IntelliJ IDEA.
User: 周志飞
Date: 2022/5/7
Time: 16:57
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
${msg}
</body>
</html>
7、发布项目,启动Tomcat后,在浏览器输入localhost:8080/hello访问页面
标签:xml,web,第一个,springmvc,视图,HelloSpringMVC,ModelAndView,servlet 来源: https://www.cnblogs.com/zzhif/p/16243850.html