1. SpringSecurity框架入门 1.1 SpringSecurity简介 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。 1.2 SpringSecurity入门小 Demo 1.2.1 最简单 Demo (1)创建工程 spring-security-demo ,pom.xml 内容
<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 [url=http://maven.apache.org/maven-v4_0_0.xsd]http://maven.apache.org/maven-v4_0_0.xsd[/url]">
 
<modelVersion>4.0.0</modelVersion>
 
<groupId>cn.itcast.demo</groupId>
 
<artifactId>spring-security-demo</artifactId>
<packaging>war</packaging>
 
 
<version>0.0.1-SNAPSHOT</version>
 
 
<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>
 
<!-- java 编译插件 -->
 
<plugin>
 
 
<groupId>org.apache.maven.plugins</groupId>
 
 
<artifactId>maven-compiler-plugin</artifactId>
 
<version>3.2</version>
 
 
<configuration>
 
 
<source>1.7</source>
 
 
<target>1.7</target>
 
 
<encoding>UTF-8</encoding>
 
 
</configuration>
 
 
</plugin>
 
 
<plugin>
 
 
<groupId>org.apache.tomcat.maven</groupId>
 
 
<artifactId>tomcat7-maven-plugin</artifactId>
<configuration>
 
<!-- 指定端口 -->
 
<port>9090</port>
 
<!-- 请求路径 -->
 
<path>/</path>
 
 
</configuration>
 
 
</plugin>
 
 
</plugins>
 
 
</build>
 
 
</project>