web.xml进行拦截配置
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<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>
拦截
<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>
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springecurity配置文件
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<?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">
<!-- 配置 favicon.ico 不进行安全拦截-->
<http pattern="/favicon.ico" security="none"/>
<!-- 以下页面不被拦截 -->
<http pattern="/login.html" security="none"></http>
<http pattern="/css/**" security="none"></http>
<http pattern="/img/**" security="none"></http>
<http pattern="/js/**" security="none"></http>
<http pattern="/plugins/**" security="none"></http>
<!-- 页面拦截规则 -->
<http use-expressions="false">
<intercept-url pattern="/**" access="ROLE_ADMIN" />
<form-login login-page="/login.html"
default-target-url="/admin/index.html"
authentication-failure-url="/login.html"always-use-default-target="true"/>
<csrf disabled="true"/>
<headers>
<frame-options policy="SAMEORIGIN"/>
</headers>
</http>
<!-- 认证管理器 -->
<authentication-manager>
<authentication-provider>
<user-service>
//直接配置
<user name="admin" password="123456"
authorities="ROLE_ADMIN"/>
<user name="sunny" password="offcn123"
authorities="ROLE_ADMIN"/>
</user-service>
</authentication-provider>
</authentication-manager>
</beans:beans>
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获取名字
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String name=SecurityContextHolder.getContext().getAuthentication().getName();
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public class UserDetailsServiceImpl implements UserDetailsService {
@Override
public UserDetails loadUserByUsername(String username) throws
UsernameNotFoundException {
List<GrantedAuthority> grantedAuths = new ArrayList<GrantedAuthority>();
grantedAuths.add(new SimpleGrantedAuthority("ROLE_SELLER"));
//返回
//return new User(username,"123456", grantedAuths);
//或者道数据库查询
//得到对象
TbSeller seller = sellerService.findOne(username);
if(seller!=null){
if(seller.getStatus().equals("1")){
return new User(username,seller.getPassword(),grantAuths);
}else{
return null;
}
}
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<!-- 认证管理器 -->
<authentication-manager>
<authentication-provider user-service-ref="userDetailService">
</authentication-provider>
</authentication-manager>
<!-- 定义自定义认证类 -->
<beans:bean id="userDetailService"
class="com.offcn.service.UserDetailsServiceImpl"></beans:bean>
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原文：https://www.cnblogs.com/meani/p/12712870.html