权限框架springSecurity的入门(一)

目前有了解到的权限框架有springSecurity和shiro两种,先做一个关于springSecurity的简单demo,后面再将shiro的补充上:

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。

1.pom.xml的配置

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.springsecurity</groupId>
	<artifactId>springsecurity</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>war</packaging>

	<properties>
		<spring.version>4.2.4.RELEASE</spring.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context-support</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.security</groupId>
			<artifactId>spring-security-web</artifactId>
			<version>4.1.0.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.security</groupId>
			<artifactId>spring-security-config</artifactId>
			<version>4.1.0.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>servlet-api</artifactId>
			<version>2.5</version>
			<scope>provided</scope>
		</dependency>
	</dependencies>



	
	<build>
		<plugins>
			<plugin>
				<groupId>org.apache.tomcat.maven</groupId>
				<artifactId>tomcat7-maven-plugin</artifactId>
				<version>2.2</version>
				<configuration> 
 	 	 	 	 	<!-- 指定端口 --> 
 	 	 	 	 	<port>9090</port> 
 	 	 	 	 	<!-- 请求路径 --> 
 	 	 	 	 	<path>/</path> 
 	 	 	 	</configuration> 
			</plugin>

			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.2</version>
			</plugin>
		</plugins>
	</build>
</project>

2.web.xml文件的配置:

<?xml version="1.0" encoding="UTF-8"?> 
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
 	xmlns="http://java.sun.com/xml/ns/javaee" 
 	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
 	version="2.5">  	 
    <context-param> 
 	 	<param-name>contextConfigLocation</param-name> 
 	 	<param-value>classpath:spring-security.xml</param-value> 
 	 </context-param> 
 	 <listener>
 	 <listener-class> 
 	 	 	org.springframework.web.context.ContextLoaderListener 
 	 	</listener-class> 
 	 </listener>  
 	 <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>  
</web-app>

3.spring-security.xml文件的配置及配置说明:

<?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.xsd 
 	 	 	 	 	 	http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd">  
 	
 	<!-- 设置不拦截页面 -->
 	<http pattern="/login.html" security="none"></http>
 	<http pattern="/login_error.html" security="none"></http>
 	
 	
 	
 	<!-- 页面拦截规则 -->
 	<http use-expressions="false">
 	<!-- intercept-url表示拦截的页面, -->
 		<intercept-url pattern="/**" access="ROLE_USER" />
 		<!--/**表示该目录下和子目录下的资源 -->
 		<!--配置了form-login 才可以设置access为"ROLE_USER",否则就要配置为access="hasRole('ROLE_USER')" -->	
 		<form-login login-page="/login.html" default-target-url="/index.html" 
 		authentication-failure-url="/login_error.html"/>
 		<!-- 
 		login-page：指定登录页面。 
 		authentication-failure-url：指定了身份验证失败时跳转到的页面。 
 		default-target-url：指定了成功进行身份验证和授权后默认呈现给用户的页面。 
                csrf disabled="true"  关闭 csrf ,如果不加会出现错误 
                -->
 		<csrf disabled="true"/>
 	</http>
 	
 	<!-- 认证管理器 -->
 	<authentication-manager>
 		<authentication-provider>
 			<user-service>
 				<user name="admin" password="123456" authorities="ROLE_USER"/>
 			</user-service>
 		</authentication-provider>
 	</authentication-manager>
</beans:beans>

4.登陆页面:

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>登陆</title>
</head>
<body>
<form action="/login" method="post">
	<table>
	  <tr>
	  	<td>用户名</td>
	  	<td><input type="text" name="username" value=''></td>
	  </tr>
	   <tr>
	  	<td>密码</td>
	  	<td><input type="password" name="password" value=''></td>
	  </tr>
	   <tr>
	  	<td colspan='2'><input name='submit' type='submit' value='登陆'></td>
	  </tr>	  
	</table>
</form>

</body>
</html>

将包结构贴上:

说明:

1.如果用户名和密码正确就会跳转导登陆成功index.html页面,

2.如果用户名和密码正确就会跳转导登陆login_error.html页面

补充:一般用户名和密码不会固定死,需要从数据库中查询,需要在service层实现UserDetailSerive接口,重写方法loadUserByUsername方法.完成调用dao层实现和数据库的交互.

权限框架springSecurity的入门(一)

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