- 环境： MacOS + IntelliJ IDEA 2019.3.1 (Ultimate Edition)
基于Spring实战 - 实现自动登录的功能，整合Spring MVC
1、在pom.xml中增加spring-webmvc依赖
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.2.2.RELEASE</version>
</dependency>
2、配置Web.xml
- CharacterEncodingFilter 配置字符集过滤器，用于解决中文编码问题
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
- DispatherServlet 配置Spring的Servlet分发器处理所有HTTP的请求和响应。
<servlet>
<servlet-name>springServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
3、配置Spring MVC
<?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:mvc="http://www.springframework.org/schema/mvc"
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/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<description>Spring MVC Configuration</description>
<!-- 加载配置文件 -->
<context:property-placeholder ignore-unresolvable="true" location="classpath:cats.properties"/>
<!-- 使用Annotation自动注册Bean，只扫描@Controller -->
<context:component-scan base-package="com.codeonline.cats" use-default-filters="false" >
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!-- 支持注解映射 -->
<mvc:annotation-driven />
<!-- 定义视图文件解析 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="${web.view.prefix}"></property>
<property name="suffix" value="${web.view.suffix}"></property>
</bean>
<!-- 静态资源文件扫描 -->
<mvc:resources mapping="/static/**" location="/static/" cache-period="31536000"/>
</beans>
4、在resources 目录下创建cats.properties
web.view.prefix=/WEB-INF/views
web.view.suffix=.jsp
5、在spring-context中去掉对@Controller 的扫描
<!-- 扫描指定包中使用注解的类 排除对注释@Controller的扫描-->
<context:component-scan base-package="com.codeonline.cats">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
6、在Controller 文件夹下创建MyController
package com.codeonline.cats.web.controller;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
/**
* @author 码出高薪
* @Desc. 登录控制
* @date 2020/1/12 04:57
*/
@Controller
public class LoginController {
private Logger logger = LoggerFactory.getLogger(LoginController.class);
@RequestMapping(value ={" ","login"}, method = RequestMethod.GET)
public String login(){
return "/login";
}
}
7、在WEB-INF/views目录下创建login.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>码出高薪</title>
</head>
<body>
登录成功
</body>
</html>
8、查看整合Spring MVC 效果
整合Spring MVC 效果.png
