springmvc入门（一）

一、搭建开发环境

1.1 引入相关依赖

    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-contextartifactId>
      <version>5.2.2.RELEASEversion>
    dependency>


    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-webmvcartifactId>
      <version>5.2.2.RELEASEversion>
    dependency>

    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-webartifactId>
      <version>5.2.2.RELEASEversion>
    dependency>

    
    <dependency>
      <groupId>javax.servletgroupId>
      <artifactId>javax.servlet-apiartifactId>
      <version>4.0.0version>
      <scope>providedscope>
    dependency>

1.2 配置srpingmvc.xml  （用于springmvc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"
       xmlns:aop="http://www.springframework.org/schema/aop"
       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/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    
    <context:component-scan base-package="cn.ushowtime">context:component-scan>

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

　

beans>

1.3 web.xml的配置

 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >


  Archetype Created Web Application

  
  
    characterEncodingFilter
    org.springframework.web.filter.CharacterEncodingFilter
    
    
      encoding
      UTF-8
    
  
  
    characterEncodingFilter
    /*
  

  
  
    dispatcherServlet
    org.springframework.web.servlet.DispatcherServlet
    
    
      contextConfigLocation
      classpath:springmvc.xml
    
    
    1
  
  
    dispatcherServlet
    /
  

二、编写测试方法

编写一个HelloController

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;

/**
 * @author t
 */
@Controller
public class HelloController {

    @GetMapping(value = "/hello")
    public String hello(){
        System.out.println("访问hello控制器");
        return "hello";
    }
}

运行结果

浏览器结果