springMVC quickly create a hello world

SpringMVC

1, the configuration of the head profile springmvc:

 1 <beans xmlns="http://www.springframework.org/schema/beans"
 2        xmlns:mvc="http://www.springframework.org/schema/mvc"
 3        xmlns:context="http://www.springframework.org/schema/context"
 4        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 5        xsi:schemaLocation="
 6             http://www.springframework.org/schema/beans
 7             http://www.springframework.org/schema/beans/spring-beans.xsd
 8             http://www.springframework.org/schema/context
 9             http://www.springframework.org/schema/context/spring-context.xsd
10             http://www.springframework.org/schema/mvc
11             http://www.springframework.org/schema/mvc/spring-mvc.xsd">

the maven pom-dependent configuration file is introduced:

 1  <properties>
 2     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 3     <maven.compiler.source>1.7</maven.compiler.source>
 4     <maven.compiler.target>1.7</maven.compiler.target>
 5     <!--版本锁定-->
 6     <spring.version>5.0.7.RELEASE</spring.version>
 7   </properties>
 8 ​
 9 <dependencies>
10   <dependency>
11     <groupId>org.springframework</groupId>
12     <artifactId>spring-context</artifactId>
13     <version>${spring.version}</version>
14   </dependency>
15 ​
16   <dependency>
17     <groupId>org.springframework</groupId>
18     <artifactId>spring-web</artifactId>
19     <version>${spring.version}</version>
20   </dependency>
21 ​
22   <dependency>
23     <groupId>org.springframework</groupId>
24     <artifactId>spring-webmvc</artifactId>
25     <version>${spring.version}</version>
26   </dependency>
27 ​
28   <dependency>
29     <groupId>javax.servlet</groupId>
30     <artifactId>servlet-api</artifactId>
31     <version>2.5</version>
32   </dependency>
33 </dependencies>

2, when used in web.xml configure a front-end controller (servlet), and the spring in the servlet configuration file into fixed :()

 1 <servlet>
 2   <servlet-name>dispatcherServlet</servlet-name>
 3   <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
 4   <init-param>
 5       <param-name>contextConfigLocation</param-name>
 6       <param-value>classpath:springMVC.xml</param-value>
 7   </init-param>
 8 </servlet>
 9 <servlet-mapping>
10   <servlet-name>dispatcherServlet</servlet-name>
11   <url-pattern>/</url-pattern>
12 </servlet-mapping>

 

3, controller layer SpringMVC the servlet is not employed as the rear end of the control, but the use of

@ Controller, @ RequestMapping ( "Login") annotation to make a Java class as a controller.

Supplementary: @RequestMapping (value = "/") is the mapping method into a "servlet", by the access method to the url.

. 1  @Controller
 2  public  class helloSpringMVC {
 . 3      @RequestMapping (value = "/ Hello" )
 . 4      public String sayHello () {
 . 5          System.out.println ( "This is the first program springMVC" );
 . 6          return "Success" ;
 7      }
 8 }

 

4, the spring profile, initialize the view parser for processing the content for the page returned by the return jump

Key Tags: InternalResourceViewResolver,

Sub-label: name = "prefix" -> Contents jump page, name = "suffix" -> file extensions.

. 1  < the bean ID = "InternalResourceViewResolver" class = "org.springframework.web.servlet.view.InternalResourceViewResolver" > 
2      < Property name = "prefix" value = "/ Pages /" > </ Property > // jump page Contents
 3      < Property name = "suffix" value =. "JSP" /> // jump file extension
 4  </ bean >

5, open framework annotation support springMVC

<mvc:annotation-driven/>