springSecurity入门小demo--配置文件xml的方式
本例子只是一个最最最简单的入门demo，重点讲解xml的配置参数的意思和遇到的坑，主要的功能有：
- 自定义登录页面，错误页面
- 配置角色
- csrf-403报错解决方法（加上一行代码配置就ok）
- 后台iframe框架页面不显示问题解决
- 登出功能
pom.xml
<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>cn.itcast.demo</groupId>
<artifactId>spring-security-demo</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>
<!-- 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>
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>首页</title>
</head>
<body>
欢迎进入神奇的spring security世界~~~
</body>
</html>
login.html (这个有坑，字段必须是username和password，必须post提交，必须接口是/login)
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>登陆</title> </head> <body> --欢迎的登陆我的系统-- <form action="/login" method="post"> 用户名：<input name="username"><br> 密码：<input name="password"><br> <button>登陆</button> </form> </body> </html>
login_error.html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>首页</title>
</head>
<body>
用户名或密码错误~~~
</body>
</html>
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: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"> <!-- 设置页面不登陆也可以访问 --> <http pattern="/login.html" security="none"></http> <http pattern="/login_error.html" security="none"></http> <!-- 页面的拦截规则 use-expressions:是否启动SPEL表达式 默认是true --> <http use-expressions="false"> <!-- 当前用户必须有ROLE_USER的角色 才可以访问根目录及所属子目录的资源 --> <intercept-url pattern="/**" access="ROLE_USER"/> <!-- 开启表单登陆功能 --> <form-login login-page="/login.html" default-target-url="/index.html" authentication-failure-url="/login_error.html"/> <csrf disabled="true"/> <!-- 如果是后台框架，一般都是用iframe框架嵌套的，security默认不支持这种，需要加上这个参数，页面才会正确显示出来 --> <headers> <frame-options policy="SAMEORIGIN"/> </headers> <!-- 登出添加这一行代码就ok --> <logout/> </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>
注意：use-expressions默认是true，如果我们不关闭的话，那么我们下面自定义访问权限就必须这样写<intercept-url pattern="/**" access="hasRole('ROLE_USER')"/> 很麻烦
如果出现csrf错误的话，就加上这句话<csrf disabled="true"/>
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_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>
注意：springSecurityFilterChain必须这个名字。
