Spring Security简单入门

1. 加入spring + spring security 相关 jar 包

配置：applicationContext-security.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/security"
xmlns:beans="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-3.0.xsd
http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.1.xsd">
<!-- http请求映射配置 -->
<http auto-config="true">
<intercept-url pattern="/admin.jsp" access="ROLE_ADMIN"/>
<intercept-url pattern="/user.jsp" access="ROLE_USER"/>
</http>

<!-- 权限认证管理 -->
<authentication-manager>
<authentication-provider>
<!-- <jdbc-user-service data-source-ref="dataSource"/>-->
<!-- 自定义用户 -->
<user-service>
<user name="admin" password="admin" authorities="ROLE_ADMIN" />
<user name="user" password="user" authorities="ROLE_USER" />
</user-service>
</authentication-provider>
</authentication-manager>
</beans:beans>

 3.配置 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">
<!-- 	配置spring初始化参数 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath:applicationContext*.xml
</param-value>
</context-param>
<!--     配置spring security 过滤器 -->
<filter>
<filter-name>springSecurityFilterChain</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
<filter-name>springSecurityFilterChain</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--     配置spring监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--     配置spring mvc 可选、struts2也可以 -->
<servlet>
<servlet-name>bank</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:bank-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>bank</servlet-name>
<url-pattern>*.html</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>

</web-app>

 4.访问 ： 127.0.0.1:8080/security/admin.jsp

       自动会跳转登录页面，输入对应的账号密码就访问可以了

恭喜你，已经进入了第一步学习