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springMVC与servlet的初识

1、pom.xml导入依赖

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.2.7.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.2.1-b03</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
    </dependencies>

2、maven项目添加web框架

右键选择add...之后选择

 

3、controller层

public class HelloController implements Controller {
    public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception{
        ModelAndView mv = new ModelAndView();
        //封装对象
        mv.addObject("msg","hello!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
        //封装要跳转的视图，转到hello.jsp
        mv.setViewName("hello");
        return mv;
    }
}

4、类路径下新建springmvc-servlet.xml配置处理器、适配器

<?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">

    <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>

    <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="internalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>

    <bean id="/hello" class="com.meng.controller.HelloController"/>

</beans>

5、在web/WEB-INF/jsp/hello.jsp中添加：

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
${msg}
</body>
</html>

6、在tomcat中设置

 

 7、在项目结构中设置

 

 

 

 8、点击运行即可，遇到404的可以参照以下建议

 

 

posted @ 2020-08-11 10:55  meng2113  阅读(217)  评论(0)    收藏  举报