入门案例
创建一个maven工程
第一步导入pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<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.offcn</groupId>
<artifactId>spring_security_demo</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<webVersion>3.0</webVersion>
<spring.version>4.2.5.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>
<!--框架所需要的jar -->
<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>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</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>
框架所必须的依赖
<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>
第二步配置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"
version="3.0">
<!-- application_security.xml是框架的配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/application_security.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--配置一个springSecurity拦截器,name必须为下面这个-->
<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>
第三步写application_security.xml配置文件
<?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">
<!--favicon.ico被拦截(页头小图标)-->
<http pattern="/favicon.ico" security="none"/>
<http pattern="/login.html" security="none"></http>
<http pattern="/error.html" security="none"></http>
<!--页面拦截的规则-->
<!--是否启用springsecutiry的拦截规则 默认是true,设置为false就会按规则拦截-->
<http use-expressions="false">
<!--当上面设置为true时,写法是下面这种-->
<!--<intercept-url pattern="/**" access="hasRole('ROLE_TEACHER')"/>-->
<!--配置拥有访问权限的用户 角色名称:前缀必须是 ROLE_-->
<intercept-url pattern="/**" access="ROLE_TEACHER"/>
<!--login-page 验证页面 default-target-ur 成功后跳转页面 always-use-default-target一直使用吗?authentication-failure-url 失败跳转页面-->
<form-login login-page="/login.html" default-target-url="/index.html" always-use-default-target="true"
authentication-failure-url="/error.html"></form-login> <!-- 自定义登陆页面 -->
<!--配置的登陆页面-->
<form-login/>
<!-- 防止攻击 -->
<csrf disabled="true"/>
<!-- 注销所需要的 -->
<logout/>
</http>
<!--认证管理器 authentication身份验证 provider提供者 authorities身份确定-->
<authentication-manager>
<authentication-provider>
<user-service>
<!-- 设置登录用户 -->
<user name="guodaxia" authorities="ROLE_TEACHER" password="123456"></user>
</user-service>
</authentication-provider>
</authentication-manager>
</beans:beans>
第四步写页面
login.html
注意:1.用户名name必须是username 2.密码name必须是possword 3.提交地址必须是/login 4.提交方式必须是post
<form action="/login" method="post" >
<table>
<tr>
<td>用户名:</td>
<td>
<input type="text" name="username">
</td>
</tr>
<tr>
<td>密码</td>
<td>
<input type="password" name="password">
</td>
</tr>
<tr>
<td colspan="2"></td>
<td>
<input name="submit" type="submit" value="登陆">
</td>
</tr>
</table>
</form>
成功页面还要失败页面就不写了
将Spring security融入项目中的操作
第一步在web.xml中添加一个过滤器
<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>
第二步写application_security.xml配置文件
<?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">
<!-- 放行静态资源文件,以下是某个项目的例举 -->
<http pattern="/favion.ico" security="none"/>
<http pattern="/login.html" security="none"/>
<http pattern="/css/**" security="none"/>
<http pattern="/img/**" security="none"/>
<http pattern="/js/**" security="none"/>
<http pattern="/plugins/**" security="none"/>
<http use-expressions="false">
<intercept-url pattern="/**" access="ROLE_STU"/>
<!-- login-page指定了登陆页面 -->
<form-login login-page="/login.html" default-target-url="/admin/index.html" authentication-failure-url="/login.html" always-use-default-target="true"></form-login>
<csrf disabled="true"/>
<!--如果使用了frame框架就要设置这个:同源根目录下的放行-->
<headers>
<frame-options policy="SAMEORIGIN"/>
</headers>
<!-- 注销操作 -->
<logout/>
</http>
<!--认证管理器-->
<authentication-manager>
<authentication-provider>
<user-service>
<user name="guodaxia" password="offcn123" authorities="ROLE_STU"/>
<user name="huangdaxia" password="offcn123" authorities="ROLE_STU"/>
<user name="feidaxia" password="offcn123" authorities="ROLE_STU"/>
</user-service>
</authentication-provider>
</authentication-manager>
</beans:beans>
第三步 修改登陆表单的action还要属性名等
注意:登陆访问的接口是/login 注销操作访问的接口是/logout
注销举例:
<a href="../logout" class="btn btn-default btn-flat">注销</a>
内容补充:当你登陆成功后还要获取登陆名信息的话,再写一个接口
@RestController
@RequestMapping("/login")
public class LongController {
@RequestMapping("/name")
public Map name(){
//Context上下文
String name = SecurityContextHolder.getContext().getAuthentication().getName();
Map map = new HashMap();
map.put("loginName",name);
return map;
}
}
自定义认证类
1.写一个类实现UserDetailsService接口
package com.offcn.service;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import java.util.ArrayList;
import java.util.List;
public class UserDetailsServiceImpl implements UserDetailsService {
//UserDetails 认证的一个接口 有一个实现类 User
public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
//自定义一个安全的集合 ROLE_TEACGER 是配置拥有访问权限的用户的角色 GrantedAuthority:权限
List<GrantedAuthority> Granted = new ArrayList<GrantedAuthority>();
//角色名必须是配置文件中已经配置的角色
Granted.add(new SimpleGrantedAuthority("ROLE_SELLER"));
return new User(username,"123",Granted);
//这里写username 表示用户名可以任意 密码是123 就可以通过验证
}
}
2.修改spring-security.xml配置文件
只修改认证管理器
<!--认证管理器-->
<authentication-manager>
<!-- 让它引用认证类 -->
<authentication-provider user-service-ref="userDetailsService">
</authentication-provider>
</authentication-manager>
<!-- 自定义认证类 -->
<beans:bean id="userDetailsService" class="com.offcn.service.UserDetailsServiceImpl"></beans:bean>