helloworld

1.导入jar包。
下载网址：https://repo.spring.io/release/org/springframework/spring/

2.配置web.xml

```jsx springmvc org.springframework.web.servlet.DispatcherServlet contextConfigLocation classpath:springmvc-servlet.xml

springmvc /

3.添加springmvc配置文件，默认在WEB-INF下。文件名默认为 [servlet名(步骤二servlet-name)]-servlet.xml。例如：springmvc-servlet.xml。
4.编写springmvc配置文件
```xml
<?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-4.1.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">                    
    <!-- scan the package and the sub package -->
    <context:component-scan base-package="test.SpringMVC"/>
    <!-- don't handle the static resource -->
    <mvc:default-servlet-handler />
    <!-- if you use annotation you must configure following setting -->
    <mvc:annotation-driven />
    <!-- configure the InternalResourceViewResolver -->
    <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.在WEB-INF文件夹下创建名为jsp的文件夹，用来存放jsp视图。创建一个hello.jsp，在body中添加“Hello World”。

6.建立包以及mvcController.java文件。整体布局如下。

6.mvcController.java文件编写代码。

@Controller
@RequestMapping("/mvc")
public class mvcController {
    @RequestMapping("/hello")
    public String hello(){        
        return "hello";
    }
}

7.运行网址：http://localhost:8080/项目名/mvc/hello