详解Spring Security 简单配置

开发环境

1. maven
2. idea
3. jdk 1.8
4. tomcat 8

配置spring mvc + spring security

pom.xml

 <properties>
  <spring.version>4.3.8.RELEASE</spring.version>
  <spring-sercurity.version>4.2.2.RELEASE</spring-sercurity.version>
 </properties>

 <dependencies>
  <!-- Spring 4 dependencies -->

  <dependency>
   <groupId>org.springframework</groupId>
   <artifactId>spring-context</artifactId>
   <version>${spring.version}</version>

  </dependency>

  <dependency>
   <groupId>org.springframework</groupId>
   <artifactId>spring-webmvc</artifactId>
   <version>${spring.version}</version>
  </dependency>

  <!-- Spring Security -->
  <dependency>
   <groupId>org.springframework.security</groupId>
   <artifactId>spring-security-core</artifactId>
   <version>${spring-sercurity.version}</version>
  </dependency>

  <dependency>
   <groupId>org.springframework.security</groupId>
   <artifactId>spring-security-web</artifactId>
   <version>${spring-sercurity.version}</version>
  </dependency>

  <dependency>
   <groupId>org.springframework.security</groupId>
   <artifactId>spring-security-config</artifactId>
   <version>${spring-sercurity.version}</version>
  </dependency>
 </dependencies>

spring mvc 使用的是4.3.8版本，spring security 使用的是4.2.2版本。

spring-mvc-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:context="http://www.springframework.org/schema/context"
  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-4.0.xsd
  http://www.springframework.org/schema/context
  http://www.springframework.org/schema/context/spring-context-4.0.xsd">

 <context:component-scan base-package="com.controller" />

 <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
  <property name="prefix">
   <value>/WEB-INF/pages/</value>
  </property>
  <property name="suffix">
   <value>.jsp</value>
  </property>
 </bean>
</beans>

spring-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:p="http://www.springframework.org/schema/p"
  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
   http://www.springframework.org/schema/security
    http://www.springframework.org/schema/security/spring-security.xsd">

 <http auto-config="true" >
  <intercept-url pattern="/**" access="hasRole('ROLE_USER')"/>
 </http>

 <authentication-manager>
  <authentication-provider>
   <user-service>
    <user name="admin" password="123456" authorities="ROLE_USER"/>
   </user-service>
  </authentication-provider>
 </authentication-manager>
</beans:beans>

web.xml

<?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_3_0.xsd"
   id="WebApp_ID" version="3.0">
 <display-name>Archetype Created Web Application</display-name>

 <listener>
  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
 </listener>

 <context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>
   classpath:spring-mvc-servlet.xml,
   classpath:spring-security.xml
  </param-value>
 </context-param>

 <!-- spring mvc -->
 <servlet>
  <servlet-name>spring-mvc</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  <init-param>
   <param-name>contextConfigLocation</param-name>
   <param-value>classpath*:spring-mvc-servlet.xml</param-value>
  </init-param>
  <load-on-startup>1</load-on-startup>
 </servlet>
 <servlet-mapping>
  <servlet-name>spring-mvc</servlet-name>
  <url-pattern>/</url-pattern>
 </servlet-mapping>

 <!-- spring security -->
 <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>

 <welcome-file-list>
  <welcome-file>index.jsp</welcome-file>
 </welcome-file-list>
</web-app>

测试

spring会拦截所有请求，如果没有登录，则系统会跳转到spring security默认的登录页面。

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