使用注解生成SpringMVC程序

柔光的暖阳◎ 2022-11-08 05:55 106阅读 0赞

## 1.创建一个工程 ##

## 2.点击web框架支持 ##

![在这里插入图片描述][2021031308364485.png]  
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## 3.点击项目结构，看看WEB-FIN文件包下有没有lib包，没有则加上，并把依赖导入。 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTcyMzAwMw_size_16_color_FFFFFF_t_70 1]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTcyMzAwMw_size_16_color_FFFFFF_t_70 2]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTcyMzAwMw_size_16_color_FFFFFF_t_70 3]  
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## 4.配置web.xml ##

1.注册前台控制器DispatcherServlet  
2.关联springMVC的配置文件  
3.设置启动级别1  
4.设置映射路径

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
             version="4.0">
    
        <servlet>
    
            <servlet-name>springmvc</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    
            <init-param>
                <param-name>contextConfigLocation</param-name>
                <param-value>classpath:springmvcServlet.xml</param-value>
            </init-param>
    
            <load-on-startup>1</load-on-startup>
        </servlet>
    
        <servlet-mapping>
            <servlet-name>springmvc</servlet-name>
            <url-pattern>/</url-pattern>
        </servlet-mapping>
    </web-app>

## 5.添加springmvc配置文件 ##

1.开启自动扫描包，让指定包下的注解生效  
2.让springmvc不处理静态资源（.css .js .html等）  
3.开启处理器映射启(HandlerMapping)，处理器适配器(HandlerAdapater)注解驱动  
4.配置视图解析器

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
           xmlns:context="http://www.springframework.org/schema/context"
           xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:util="http://www.springframework.org/schema/util"
           xsi:schemaLocation="http://www.springframework.org/schema/beans
                         http://www.springframework.org/schema/beans/spring-beans.xsd
                         http://www.springframework.org/schema/context
                         http://www.springframework.org/schema/context/spring-context.xsd
                         http://www.springframework.org/schema/aop
                         http://www.springframework.org/schema/aop/spring-aop.xsd
                         http://www.springframework.org/schema/mvc
      					 http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
    
        <context:component-scan base-package="com.zhu.controller"></context:component-scan>
    
    
        <mvc:default-servlet-handler></mvc:default-servlet-handler>
    
    
        <mvc:annotation-driven></mvc:annotation-driven>
    
    
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    
            <property name="prefix" value="WEB-INF/jsp/"></property>
    
            <property name="suffix" value=".jsp"></property>
        </bean>
        
    </beans>

## 6.创建自动扫描包路径对应的包 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTcyMzAwMw_size_16_color_FFFFFF_t_70 7]

## 7.创建视图解析器前缀路径的包 ##

![在这里插入图片描述][20210313091643855.png]

## 8.创建Controller ##

![在这里插入图片描述][20210313092703845.png]

package com.zhu.controller;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    @Controller
    public class HelloController {
        
    //    访问地址
        @RequestMapping("/hello")
        public String hello(Model model){
        
    
    //        封装数据，model添加的属性，可以在jsp页面直接获取。
            model.addAttribute("msg","你好springmvc");
    
    //        返回jsp页面的名称,会被视图解析器处理
            return "hello";
        }
    }

## 9.启动Tomcat即可 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTcyMzAwMw_size_16_color_FFFFFF_t_70 8]

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[20210313091643855.png]: /images/20221023/de8dc63bc8ce4b22921ab30322be8e49.png
[20210313092703845.png]: /images/20221023/3ee691f5f8c4454f8842136f6c4d295e.png
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