spring-security配置文件

<?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">

    <!-- 配置不拦截的资源 -->
    <security:http pattern="/pages/login.jsp" security="none"/>
    <security:http pattern="/pages/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="false">
        <!-- 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="ROLE_USER,ROLE_ADMIN"/>

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

    <!-- 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>

spring-security.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">

  <!-- 配置加载类路径的配置文件 -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath*:applicationContext.xml,classpath*:spring-security.xml</param-value>
  </context-param>

  <!-- 配置监听器 -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>


  <!-- 前端控制器（加载classpath:springmvc.xml 服务器启动创建servlet） -->
  <servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- 配置初始化参数，创建完DispatcherServlet对象，加载springmvc.xml配置文件 -->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath*:springmvc.xml</param-value>
    </init-param>
    <!-- 服务器启动的时候，让DispatcherServlet对象创建 -->
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>

  <!-- 解决中文乱码过滤器 -->
  <filter>
    <filter-name>characterEncodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>characterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
<!--权限过滤器-->
  <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>

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

web.xml

package com.itheima.service.impl;

import com.itheima.dao.UserDao;
import com.itheima.service.UserService;
import com.ithiema.domain.Role;
import com.ithiema.domain.UserInfo;
import org.springframework.beans.factory.annotation.Autowired;
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.UsernameNotFoundException;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.ArrayList;
import java.util.List;

@Service("userService")
@Transactional
public class UserServiceImpl implements UserService {
    @Autowired
    private UserDao userDao;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        UserInfo userInfo = userDao.findByUsername(username);
        List<Role> roles = userInfo.getRoles();
        List<SimpleGrantedAuthority> authorityList = getAuthority(roles);
        User user = new User(userInfo.getUsername(),
                "{noop}"+userInfo.getPassword(),
                userInfo.getStatus() == 0 ? false : true,
                true,
                true,
                true,
                authorityList);

        return user;
    }

    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;
    }
}

UserServiceImpl.java

package com.itheima.service;

import org.springframework.security.core.userdetails.UserDetailsService;

public interface UserService extends UserDetailsService {

}

UserServiceImpl

spring-security配置文件

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