spring-security

 

 

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

    <security:global-method-security pre-post-annotations="enabled" jsr250-annotations="enabled" secured-annotations="enabled"></security:global-method-security>

    <!-- 配置不拦截的资源 -->
    <security:http pattern="/login.jsp" security="none"/>
    <security:http pattern="/failer.jsp" security="none"/>
    <security:http pattern="/css/**" security="none"/>
    <security:http pattern="/img/**" security="none"/>
    <security:http pattern="/plugins/**" security="none"/>
    <!--
       配置具体的规则
       auto-config="true" 不用自己编写登录的页面，框架提供默认登录页面
       use-expressions="false"    是否使用SPEL表达式（没学习过）
    -->
    <security:http auto-config="true" use-expressions="true">
        <!-- 配置具体的拦截的规则 pattern="请求路径的规则" access="访问系统的人，必须有ROLE_USER的角色" -->
        <security:intercept-url pattern="/**" access="hasAnyRole('ROLE_USER','ROLE_ADMIN')"/>

        <!-- 定义跳转的具体的页面 -->
        <security:form-login
                login-page="/login.jsp"
                login-processing-url="/login.do"
                default-target-url="/index.jsp"
                authentication-failure-url="/failer.jsp"
                authentication-success-forward-url="/pages/main.jsp"
        />

        <!-- 关闭跨域请求 -->
        <security:csrf disabled="true"/>
        <!-- 退出 -->
        <security:logout invalidate-session="true" logout-url="/logout.do" logout-success-url="/login.jsp"/>

    </security:http>

    <!-- 切换成数据库中的用户名和密码 -->
    <security:authentication-manager>
        <security:authentication-provider user-service-ref="userService">
            <!-- 配置加密的方式-->
            <security:password-encoder ref="passwordEncoder"/>
        </security:authentication-provider>
    </security:authentication-manager>

    <!-- 配置加密类 -->
    <bean id="passwordEncoder" class="org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder"/>
   <!-- <bean id="webexpressionHandler" class="org.springframework.security.web.access.expression.DefaultWebSecurityExpressionHandler" />-->
    <!-- 提供了入门的方式，在内存中存入用户名和密码
    <security:authentication-manager>
       <security:authentication-provider>
          <security:user-service>
             <security:user name="admin" password="{noop}admin" authorities="ROLE_USER"/>
          </security:user-service>
       </security:authentication-provider>
    </security:authentication-manager>
    -->

</beans>

public interface IUserService extends UserDetailsService {

}

@Override
public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
    UserInfo userInfo = null;
    try {
        userInfo = userDao.findByUsername(username);
    } catch (Exception e) {
        e.printStackTrace();
    }
    //处理自己的用户对象封装成UserDetails
    //  User user=new User(userInfo.getUsername(),"{noop}"+userInfo.getPassword(),getAuthority(userInfo.getRoles()));
    User user = new User(userInfo.getUsername(), userInfo.getPassword(), userInfo.getStatus() == 0 ? false : true, true, true, true, getAuthority(userInfo.getRoles()));
    return user;
}

//作用就是返回一个List集合，集合中装入的是角色描述
public List<SimpleGrantedAuthority> getAuthority(List<Role> roles) {

    List<SimpleGrantedAuthority> list = new ArrayList<>();
    for (Role role : roles) {
        list.add(new SimpleGrantedAuthority("ROLE_" + role.getRoleName()));
    }
    return list;
}