Springmvc快速入门

1、pom文件导必要坐标和tomcat插件

<dependencies>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>5.2.10.RELEASE</version>
    </dependency>
  </dependencies>

  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.tomcat.maven</groupId>
        <artifactId>tomcat7-maven-plugin</artifactId>
        <version>2.1</version>
        <configuration>
          <port>80</port>
          <path>/</path>
        </configuration>
      </plugin>
    </plugins>
  </build>

2、创建springmvc控制器

@Controller
public class UserController{

	@RequestMappering("/save")
	@ResponseBoay
	public String save(){

	system.out.pringln("user controller");
	return "{'info':'springmvc'}";
	}

}

3、初始化springmvc环境,设置springmvc加载环境

@Configuration
@ComonentScan("包名")
public class SpringMvcConfig{
	
}

4、初始化servlet容器,加载springmvc环境加载,设置sprinpmvc技术的请求

public class ServletContainersInitConfig extends AbstractDispatcherServletInitializer {  
  	
  	protected WebApplicationContext createServletApplicationContext() {   
  	    
   		AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();      
    	ctx.register(SpringMvcConfig.class);     
     	return ctx; 

     	}   
    protected String[] getServletMappings() {   

      	return new String[]{"/"};  

       }  

    protected WebApplicationContext createRootApplicationContext() {
              return null; 
        }
}

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