springMVC-搭建springMVC环境-Java-xml混合方式

雨点打透心脏的1/2处 2023-06-28 06:17 62阅读 0赞

**1 maven依赖**  
spring-beans/spring-core /spring-context/spring-context\_support/spring-web/spring-webmvc  
javax.servlet.javax.servlet-api-3.1.0

**2配置文件**  
web.xml

<?xml version="1.0" encoding="UTF-8" ?>
    <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
                http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
        <context-param>
            <param-name>contextClass</param-name>
            <param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext</param-value>
        </context-param>
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>config.RootConfig</param-value>
        </context-param>
        <servlet>
            <servlet-name>appServlet</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
            <init-param>
                <param-name>contextClass</param-name>
                <param-value>org.springframework.web.context.support.AnnotationConfigWebApplicationContext</param-value>
            </init-param>
            <init-param>
                <param-name>contextConfigLocation</param-name>
                <param-value>config.WebConfig</param-value>
            </init-param>
            <load-on-startup>1</load-on-startup>
        </servlet>
        <servlet-mapping>
            <servlet-name>appServlet</servlet-name>
            <url-pattern>/</url-pattern>
        </servlet-mapping>
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
    </web-app>

**RootConfig.java**

import org.springframework.context.annotation.ComponentScan;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.context.annotation.FilterType;
    import org.springframework.web.servlet.config.annotation.EnableWebMvc;
    
    @Configuration
    @ComponentScan(basePackages = {"web"},excludeFilters = {@ComponentScan.Filter(type = FilterType.ANNOTATION,value = EnableWebMvc.class)})
    public class RootConfig {
    
    }

**WebConfig.java**

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("web")
    public class WebConfig extends WebMvcConfigurerAdapter{
    
        @Bean
        public ViewResolver viewResolver(){
            InternalResourceViewResolver resolver = new InternalResourceViewResolver();
            resolver.setPrefix("/WEB-INF/views/");
            resolver.setSuffix(".html");
            resolver.setExposeContextBeansAsAttributes(true);
            return resolver;
        }
    
        @Override
        public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer){
            configurer.enable();
        }
    }

**3 一个简单的controller**

import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    @Controller
    @RequestMapping(value = "/test")
    public class HomeController {
    
        @RequestMapping(value = "/hello")
        public String hello(){
            return "index";
        }
    
    }

**4 前端页面**

<!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <body>
        hello afdasfddas dfasfdasfadsfd ffffffffff
    </body>
    </html>

**5项目结构**

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L211c2lfbQ_size_16_color_FFFFFF_t_70]

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