webapp 增加 springmvc框架支持

1.通过maven创建一个webapp项目，并在IDEA 中增加smart tomcat的插件.

2.然后在pom文件中添加springmvc的依赖

<!-- ServletAPI -->

<dependency>

<groupId>javax.servlet</groupId>

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

<version>3.1.0</version>

<scope>provided</scope>

</dependency>

<!-- SpringMVC -->

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-webmvc</artifactId>

<version>5.3.1</version>

</dependency>

<!-- Spring5和Thymeleaf整合包 -->

<dependency>

<groupId>org.thymeleaf</groupId>

<artifactId>thymeleaf-spring5</artifactId>

<version>3.0.12.RELEASE</version>

</dependency>

<!-- 日志 -->

<dependency>

<groupId>ch.qos.logback</groupId>

<artifactId>logback-classic</artifactId>

<version>1.2.3</version>

</dependency>

<!--    json 解析-->

<dependency>

<groupId>com.fasterxml.jackson.core</groupId>

<artifactId>jackson-databind</artifactId>

<version>2.12.1</version>

</dependency>

3.在web.xml文件夹中添加spring 的 filter 和 servlet

<!DOCTYPE web-app PUBLIC

 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"

 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>

  <display-name>Archetype Created Web Application</display-name>

  <!-- 配置SpringMVC的前端控制器，对浏览器发送的请求统一进行处理 -->

  <filter>

    <filter-name>HiddenHttpMethodFilter</filter-name>

    <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>

  </filter>

  <filter-mapping>

    <filter-name>HiddenHttpMethodFilter</filter-name>

    <url-pattern>/*</url-pattern>

  </filter-mapping>

  <servlet>

    <servlet-name>springMVC</servlet-name>

    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

    <!-- 通过初始化参数指定SpringMVC配置文件的位置和名称 -->

<!--    <init-param>-->

<!--      &lt;!&ndash; contextConfigLocation为固定值 &ndash;&gt;-->

<!--      <param-name>contextConfigLocation</param-name>-->

<!--      &lt;!&ndash; 使用classpath:表示从类路径查找配置文件，例如maven工程中的src/main/resources &ndash;&gt;-->

<!--      <param-value>classpath:springMVC-servlet.xml</param-value>-->

<!--    </init-param>-->

    <!--

         作为框架的核心组件，在启动过程中有大量的初始化操作要做

        而这些操作放在第一次请求时才执行会严重影响访问速度

        因此需要通过此标签将启动控制DispatcherServlet的初始化时间提前到服务器启动时

    -->

    <load-on-startup>1</load-on-startup>

  </servlet>

  <servlet-mapping>

    <servlet-name>springMVC</servlet-name>

    <!--

        设置springMVC的核心控制器所能处理的请求的请求路径

        /所匹配的请求可以是/login或.html或.js或.css方式的请求路径

        但是/不能匹配.jsp请求路径的请求

    -->

    <url-pattern>/</url-pattern>

  </servlet-mapping>

  <servlet-mapping>

    <servlet-name>default</servlet-name>

    <url-pattern>*.js</url-pattern>

    <url-pattern>*.css</url-pattern>

    <url-pattern>/assets/*"</url-pattern>

    <url-pattern>/images/*</url-pattern>

  </servlet-mapping>

</web-app>

4.添加springMVC-servlet.xml文件

<?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:context="http://www.springframework.org/schema/context"

       xmlns:jdbc="http://www.springframework.org/schema/jdbc"

       xmlns:jee="http://www.springframework.org/schema/jee"

       xmlns:tx="http://www.springframework.org/schema/tx"

       xmlns:aop="http://www.springframework.org/schema/aop"

       xmlns:mvc="http://www.springframework.org/schema/mvc"

       xmlns:util="http://www.springframework.org/schema/util"

       xmlns:jpa="http://www.springframework.org/schema/data/jpa"

       xsi:schemaLocation="

        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd

        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd

        http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.2.xsd

        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.2.xsd

        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd

        http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd

        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.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-3.2.xsd">

    <!-- 配置controller包所在的位置，需要按项目调整 -->

    <context:component-scan base-package="com.demo.controller"/>

    <!-- 配置Thymeleaf视图解析器 -->

    <bean id="viewResolver" class="org.thymeleaf.spring5.view.ThymeleafViewResolver">

        <property name="order" value="1"/>

        <property name="characterEncoding" value="UTF-8"/>

        <property name="templateEngine">

            <bean class="org.thymeleaf.spring5.SpringTemplateEngine">

                <property name="templateResolver">

                    <bean class="org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver">

                        <!-- 视图前缀 -->

                        <property name="prefix" value="/WEB-INF/templates/"/>

                        <!-- 视图后缀 -->

                        <property name="suffix" value=".html"/>

                        <property name="templateMode" value="HTML5"/>

                        <property name="characterEncoding" value="UTF-8" />

                    </bean>

                </property>

            </bean>

        </property>

    </bean>

    <!-- 开启mvc注解驱动 -->

    <mvc:annotation-driven>

        <mvc:message-converters>

            <!-- 处理响应中文内容乱码 -->

            <bean class="org.springframework.http.converter.StringHttpMessageConverter">

                <property name="defaultCharset" value="UTF-8" />

                <property name="supportedMediaTypes">

                    <list>

                        <value>text/html</value>

                        <value>application/json</value>

                    </list>

                </property>

            </bean>

        </mvc:message-converters>

    </mvc:annotation-driven>

    <mvc:view-controller path="/" view-name="index" />

    <mvc:view-controller path="/adduser" view-name="adduser" />

    <!--

           处理静态资源，例如html、js、css、jpg

          若只设置该标签，则只能访问静态资源，其他请求则无法访问

          此时必须设置<mvc:annotation-driven/>解决问题

    -->

    <mvc:default-servlet-handler/>

    <!--    开启MVC注解渠道-->

    <mvc:annotation-driven />

</beans>

5.添加一个controller的包，并在springMVC-servlet.xml中配置component-scan标签，把包的位置填入。

写一个 controller和requestmap

package com.demo.controller;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

@Controller

public class User {

    @RequestMapping("/index")

    public String getUser(){

        System.out.print("this is get user!");

        return "getUser";

    }

}

然后对应增加一个webapp/WEB-INF/templates/getUser.html

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>getuser</title>

</head>

<body>

this is getUser

</body>

</html>

6.最后的结构：

7.使用tomcat即可本地运行

http://localhost:8080/TestDrools/index

巴特西

webapp 增加 springmvc框架支持

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巴特西

webapp 增加 springmvc框架 支持

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webapp 增加 springmvc框架支持