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初识Spring security-无Security的SpringMVC
百度百科定义: Spring Security是一个能够为基于Spring的企业应用系统提供声明式的安全访问控制解决方案的安全框架。它提供了一组可以在Spring应用上下文中配置的Bean，充分利用了Spring IoC，DI（控制反转Inversion of Control ,DI:Dependency Injection 依赖注入）和AOP（面向切面编程）功能，为应用系统提供声明式的安全访问控制功能，减少了为企业系统安全控制编写大量重复代码的工作。
开始第一个示例吧。
首先，新建一个基于Spring MVC的web项目
目录结构如图
maven项目添加依赖包，主要包括Spring，SpringMVC和thymeleaf模板
<dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.2.1.RELEASE</version></dependency><dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.2.1.RELEASE</version></dependency><dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.2.1.RELEASE</version></dependency><dependency> <groupId>org.thymeleaf</groupId> <artifactId>thymeleaf-spring4</artifactId> <version>3.0.2.RELEASE</version> </dependency>
配置xml文件：
1、web.xml文件
<?xml version="1.0" encoding="UTF-8"?><web-app version="3.0" 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_3_0.xsd"> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- Spring MVC --> <!-- springMVC的配置文件默认会去WEB-INF下寻找 servletName-servlet.xml 文件 --> <servlet> <servlet-name>mvc-dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>mvc-dispatcher</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- Loads Spring Security config file --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/spring-security.xml</param-value> </context-param></web-app>
采用spring的话，必须配置contextConfigLocation指定spring的配置文件
2、spring-security.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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"></beans>
暂时为空配置
3、mvc-dispatcher-servlet.xml
<?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" 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"> <context:component-scan base-package="com.petter"/> <!--<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="http://www.mamicode.com/WEB-INF/pages/"/> <property name="suffix" value="http://www.mamicode.com/.html"/> </bean>--> <bean id="templateResolver" class="org.thymeleaf.spring4.templateresolver.SpringResourceTemplateResolver"> <property name="prefix" value="/WEB-INF/pages/" /> <property name="suffix" value=".html"/> <property name="templateMode" value="HTML"/> <property name="cacheable" value="false"/> <!-- 解决中文乱码 --> <property name="characterEncoding" value="UTF-8"/> </bean> <bean id="templateEngine" class="org.thymeleaf.spring4.SpringTemplateEngine"> <property name="templateResolver" ref="templateResolver"/> </bean> <bean class="org.thymeleaf.spring4.view.ThymeleafViewResolver"> <property name="templateEngine" ref="templateEngine"/> <!-- 解决中文乱码 --> <property name="characterEncoding" value="UTF-8"/> </bean></beans>
注意这里面的配置是SpringMVC和thymeleaf的整合配置
编写HelloController
package com.petter.web;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.servlet.ModelAndView;/** * @author hongxf * @since 2017-03-03 13:48 */@Controllerpublic class HelloController { @RequestMapping(value = "/welcome", method = RequestMethod.GET) public ModelAndView welcomePage() { ModelAndView model = new ModelAndView(); model.addObject("title", "Spring Security Hello World"); model.addObject("message", "This is welcome page !"); model.setViewName("hello"); return model; }}
编写Hello.html
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"><head> <meta charset="UTF-8" /> <title>hello</title></head><body> <h1 th:text="|标题: ${title}|">Title : XXX</h1> <h1 th:text="|信息: ${message}|">Message : XXX</h1></body></html>
运行应用：访问http://localhost:8080/welcome，结果如下
初识Spring security-无Security的SpringMVC
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