springMVC-java简单配置-不要web.xml

项目结构

image.png

pom文件

<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.ghg</groupId>
    <artifactId>msp02</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <version.jdk>1.7</version.jdk>
        <version.springframework>4.2.9.RELEASE</version.springframework>
        <version.servlet>3.1.0</version.servlet>
        <version.jsp>2.2.1-b03</version.jsp>
        <version.jstl>1.2</version.jstl>
    </properties>


    <dependencies>
        <!-- jstl -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>${version.jstl}</version>
        </dependency>
        <!-- jsp -->
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>${version.jsp}</version>
            <scope>provided</scope>
        </dependency>
        <!-- servlet -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>${version.servlet}</version>
            <scope>provided</scope>
        </dependency>
        <!-- junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
        <!--spring start -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${version.springframework}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${version.springframework}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${version.springframework}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${version.springframework}</version>
            <scope>test</scope>
        </dependency>
        <!--spring end -->

        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.7</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>6.0.8.Final</version>
        </dependency>
    </dependencies>


    <build>
        <finalName>msp02</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.7.0</version>
                <configuration>
                    <target>${version.jdk}</target>
                    <source>${version.jdk}</source>
                    <encoding>${project.build.sourceEncoding}</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>3.2.0</version>
            </plugin>

            <plugin>
                <groupId>org.eclipse.jetty</groupId>
                <artifactId>jetty-maven-plugin</artifactId>
                <version>9.4.9.v20180320</version>
                <configuration>
                    <scanIntervalSeconds>10</scanIntervalSeconds>
                    <webApp>
                        <contextPath>/msp02</contextPath>
                    </webApp>
                    <httpConnector>
                        <port>9091</port>
                    </httpConnector>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

SpittrWebAppInitializer代替web.xml

package com.ghg.msp02.init;

import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

import com.ghg.msp02.config.RootConfig;
import com.ghg.msp02.config.WebConfig;

public class SpittrWebAppInitializer  extends AbstractAnnotationConfigDispatcherServletInitializer{

    @Override
    protected Class<?>[] getRootConfigClasses() {
        
        return new Class<?>[] {RootConfig.class};
    }

    /**
     * 配置类
     */
    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class<?>[] {WebConfig.class};
    }
    /**
     * url-partten
     */
    @Override
    protected String[] getServletMappings() {
        return new String[] {"/"};
    }

}

RootConfig

package com.ghg.msp02.config;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.ComponentScan.Filter;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.FilterType;

@Configuration
@ComponentScan(basePackages= {"com.ghg.msp02"},
excludeFilters= {
        @Filter(type=FilterType.ANNOTATION,value=EnableWebMvc.class)
})
public class RootConfig {

}

WebConfig

package com.ghg.msp02.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.InternalResourceViewResolver;

@Configuration
@EnableWebMvc
@ComponentScan(basePackages= {"com.ghg.msp02"})
public class WebConfig extends WebMvcConfigurerAdapter {

    
    /**
     * 配置JSP视图解析器
    * @Title: viewResolver
    * @Description: TODO(这里用一句话描述这个方法的作用)
    * @param @return    设定文件
    * @return ViewResolver    返回类型
    * @throws
     */
    @Bean
    public ViewResolver viewResolver() {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/WEB-INF/view/");
        resolver.setSuffix(".jsp");
        
        resolver.setExposeContextBeansAsAttributes(true);
        return resolver;
    }
    
    
    
    /**
     * 配置静态资源处理
     */
    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }
}