57、springmvc-整合

57.1 创建Spring MVC Annotation项目

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0"

         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.0</modelVersion>

    <groupId>com.hw</groupId>

    <artifactId>Spring MVC Annotation</artifactId>

    <version>1.0-SNAPSHOT</version>

    <packaging>war</packaging>

    <dependencies>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-webmvc</artifactId>

            <version>5.1.3.RELEASE</version>

        </dependency>

        <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->

        <dependency>

            <groupId>javax.servlet</groupId>

            <artifactId>javax.servlet-api</artifactId>

            <version>4.0.1</version>

            <!--打包的时候排除-->

            <scope>provided</scope>

        </dependency>

    </dependencies>

</project>

57.2 自定义 WebApplicationContext

/**

 * @Description web 容器启动的时候 调用方法来初始化容器以及前端控制器

 */

public class WebApplicationContext extends AbstractAnnotationConfigDispatcherServletInitializer {

    /**

     * 获取根容器的配置类

     *

     * @return

     */

    @Override

    protected Class<?>[] getRootConfigClasses() {

        return new Class[]{RootConfig.class};

    }

    /**

     * 获取web容器的配置文件

     *

     * @return

     */

    @Override

    protected Class<?>[] getServletConfigClasses() {

        return new Class[]{AppConfig.class};

    }

    /**

     * 获取servlet 映射信息

     * / : 拦截所有资源  但不包括  *.jsp

     * /* : 拦截所有资源  包括  *.jsp

     * <p>

     * jsp 页面是tomcat的jsp引擎解析的

     *

     * @return

     */

    @Override

    protected String[] getServletMappings() {

        return new String[]{"/"};

    }

}

57.3 AppConfig and RootConfig

//  不扫描 controller  父容器

@ComponentScan(value = "com.hw",

excludeFilters = {@ComponentScan.Filter(type = FilterType.ANNOTATION, classes = {Controller.class})})

public class RootConfig {

}

// spring mvc 只扫描 controller   子容器

@ComponentScan(value = "com.hw",

        useDefaultFilters = false,

        includeFilters = {@ComponentScan.Filter(type = FilterType.ANNOTATION, classes = {Controller.class})})

public class AppConfig {

}

巴特西

57、springmvc-整合

57、springmvc-整合

57.1 创建Spring MVC Annotation项目

57.2 自定义 WebApplicationContext

57.3 AppConfig and RootConfig

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