本文使用springboot+mybatis+SpringSecurity 实现用户权限数据库管理实现用户和角色用数据库存储,而资源(url)和权限的对应采用硬编码配置。 也就是角色可以访问的权限通过硬编码控制。
角色和用户的关系通过数据库配置控制,本文用户和角色的关系是多对多的关系。
SpringSecurity 验证帐号密码
首先在usernamePasswordAuthenticationFilter中来拦截登录请求,并调用AuthenticationManager。AuthenticationManager调用Provider,provider调用userDetaisService来根据username获取真实的数据库信息。 最终验证帐号密码的类是org.springframework.security.authentication.dao.DaoAuthenticationProvider这个流程虽然没多么复杂,但是花费我不少时间给理解到了。。。
本文结构:
- 数据库表设计
- springboot+mybatis 配置
- 业务实现
- springSecurity整合
- 页面实现
- 测试验证
spring security的简单原理:
使用众多的拦截器对url拦截,以此来管理权限。但是这么多拦截器,笔者不可能对其一一来讲,主要讲里面核心流程的两个。
首先,权限管理离不开登陆验证的,所以登陆验证拦截器AuthenticationProcessingFilter要讲; 还有就是对访问的资源管理吧,所以资源管理拦截器AbstractSecurityInterceptor要讲;但拦截器里面的实现需要一些组件来实现,所以就有了AuthenticationManager、accessDecisionManager等组件来支撑。
现在先大概过一遍整个流程:
- 用户登陆,会被AuthenticationProcessingFilter拦截,调用AuthenticationManager的实现,而且AuthenticationManager会调用ProviderManager来获取用户验证信息(不同的Provider调用的服务不同,因为这些信息可以是在数据库上,可以是在LDAP服务器上,可以是xml配置文件上等),如果验证通过后会将用户的权限信息封装一个User放到spring的全局缓存SecurityContextHolder中,以备后面访问资源时使用。
- 访问资源(即授权管理),访问url时,会通过AbstractSecurityInterceptor拦截器拦截,其中会调用FilterInvocationSecurityMetadataSource的方法来获取被拦截url所需的全部权限,在调用授权管理器AccessDecisionManager,这个授权管理器会通过spring的全局缓存SecurityContextHolder获取用户的权限信息,还会获取被拦截的url和被拦截url所需的全部权限,然后根据所配的策略(有:一票决定,一票否定,少数服从多数等),如果权限足够,则返回,权限不够则报错并调用权限不足页面。
本文目录
- 数据库表设计
- 权限表的业务
- springSecurity 配置修改
- 修改home.html 文件
- 修改HomeController.Java文件
- 测试检验
数据库表设计
本文的数据库表为5个分别是: 用户表、角色表、权限表、用户角色中间表、角色权限中间表
初始化数据
注意:Sys_permission 表的url通配符为两颗星,比如说 /user下的所有url,应该写成/user/**; 权限的名字可以随意起名
insert into SYS_USER (id,username, password) values (1,'admin', 'admin');
insert into SYS_USER (id,username, password) values (2,'abel', 'abel');
insert into SYS_ROLE(id,name) values(1,'ROLE_ADMIN');
insert into SYS_ROLE(id,name) values(2,'ROLE_USER');
insert into SYS_ROLE_USER(SYS_USER_ID,ROLES_ID) values(1,1);
insert into SYS_ROLE_USER(SYS_USER_ID,ROLES_ID) values(2,2);
BEGIN;
INSERT INTO `Sys_permission` VALUES ('1', 'ROLE_HOME', 'home', '/', null), ('2', 'ROLE_ADMIN', 'ABel', '/admin', null);
COMMIT;
BEGIN;
INSERT INTO `Sys_permission_role` VALUES ('1', '1', '1'), ('2', '1', '2'), ('3', '2', '1');
COMMIT;
权限表的业务代码
model
Permission.java
package com.us.example.domain;
/** * Created by yangyibo on 17/1/20. */
public class Permission {
private int id;
//权限名称
private String name;
//权限描述
private String descritpion;
//授权链接
private String url;
//父节点id
private int pid;
public int getId() { return id; }
public void setId(int id) { this.id = id; }
public String getName() { return name; }
public void setName(String name) { this.name = name; }
public String getDescritpion() { return descritpion; }
public void setDescritpion(String descritpion) { this.descritpion = descritpion; }
public String getUrl() { return url; }
public void setUrl(String url) { this.url = url; }
public int getPid() { return pid; }
public void setPid(int pid) { this.pid = pid; }
}
mapper
PermissionDao.java
package com.us.example.dao;
import com.us.example.config.MyBatisRepository;
import com.us.example.domain.Permission;
import java.util.List;
/** * Created by yangyibo on 17/1/20. */
public interface PermissionDao {
public List<Permission> findAll();
public List<Permission> findByAdminUserId(int userId);
}
mapper.xml
PermissionDaoMapper.xml
<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.us.example.dao.PermissionDao">
<select id="findAll" resultType="com.us.example.domain.Permission">
SELECT * from Sys_permission ;
</select>
<select id="findByAdminUserId" parameterType="int" resultType="com.us.example.domain.Permission">
select p.* from Sys_User u LEFT JOIN sys_role_user sru on u.id=
sru.Sys_User_id LEFT JOIN Sys_Role r on sru.Sys_Role_id=r.id LEFT JOIN
Sys_permission_role spr on spr.role_id=r.id LEFT JOIN Sys_permission p on p.id
=spr.permission_id where u.id=#{userId}
</select>
</mapper>
springSecurity 配置修改
修改 WebSecurityConfig.java
package com.us.example.config;
import com.us.example.service.CustomUserService;
import com.us.example.service.MyFilterSecurityInterceptor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.web.access.intercept.FilterSecurityInterceptor;
/** * Created by yangyibo on 17/1/18. */
@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
@Autowired
private MyFilterSecurityInterceptor myFilterSecurityInterceptor;
@Bean
UserDetailsService customUserService(){
//注册UserDetailsService 的bean
return new CustomUserService();
}
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(customUserService());
//user Details Service验证
}
@Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests()
.anyRequest().authenticated() //任何请求,登录后可以访问
.and() .formLogin()
.loginPage("/login") .failureUrl("/login?error") .permitAll() //登录页面用户任意访问
.and() .logout().permitAll(); //注销行为任意访问
http.addFilterBefore(myFilterSecurityInterceptor, FilterSecurityInterceptor.class);
}
}
修改CustomUserService
package com.us.example.service;
import com.us.example.dao.PermissionDao;
import com.us.example.dao.UserDao;
import com.us.example.domain.Permission;
import com.us.example.domain.SysRole;
import com.us.example.domain.SysUser;
import org.springframework.beans.factory.annotation.Autowired;
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 org.springframework.stereotype.Service;
import java.util.ArrayList;
import java.util.List;
/** * Created by yangyibo on 17/1/18. */
@Service
public class CustomUserService implements UserDetailsService {
//自定义UserDetailsService 接口
@Autowired
UserDao userDao;
@Autowired
PermissionDao permissionDao;
public UserDetails loadUserByUsername(String username) {
SysUser user = userDao.findByUserName(username);
if (user != null) {
List<Permission> permissions = permissionDao.findByAdminUserId(user.getId());
List<GrantedAuthority> grantedAuthorities = new ArrayList <>();
for (Permission permission : permissions) {
if (permission != null && permission.getName()!=null) {
GrantedAuthority grantedAuthority = new SimpleGrantedAuthority(permission.getName());
//1:此处将权限信息添加到 GrantedAuthority 对象中,在后面进行全权限验证时会使用GrantedAuthority 对象。
grantedAuthorities.add(grantedAuthority);
}
}
return new User(user.getUsername(), user.getPassword(), grantedAuthorities);
} else {
throw new UsernameNotFoundException("admin: " + username + " do not exist!");
}
}
}
新增MyAccessDecisionManager
package com.us.example.service;
import org.springframework.security.access.AccessDecisionManager;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.access.ConfigAttribute;
import org.springframework.security.authentication.InsufficientAuthenticationException;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.stereotype.Service;
import java.util.Collection;
import java.util.Iterator;
/**
* Created by yangyibo on 17/1/19.
*/
@Service
public class MyAccessDecisionManager implements AccessDecisionManager {
// decide 方法是判定是否拥有权限的决策方法,
//authentication 是释CustomUserService中循环添加到 GrantedAuthority 对象中的权限信息集合.
//object 包含客户端发起的请求的requset信息,可转换为 HttpServletRequest request = ((FilterInvocation) object).getHttpRequest();
//configAttributes 为MyInvocationSecurityMetadataSource的getAttributes(Object object)这个方法返回的结果,此方法是为了判定用户请求的url 是否在权限表中,如果在权限表中,则返回给 decide 方法,用来判定用户是否有此权限。如果不在权限表中则放行。
@Override
public void decide(Authentication authentication, Object object, Collection<ConfigAttribute> configAttributes) throws AccessDeniedException, InsufficientAuthenticationException {
if(null== configAttributes || configAttributes.size() <=0) {
return;
}
ConfigAttribute c;
String needRole;
for(Iterator<ConfigAttribute> iter = configAttributes.iterator(); iter.hasNext(); ) {
c = iter.next();
needRole = c.getAttribute();
for(GrantedAuthority ga : authentication.getAuthorities()) {//authentication 为在注释1 中循环添加到 GrantedAuthority 对象中的权限信息集合
if(needRole.trim().equals(ga.getAuthority())) {
return;
}
}
}
throw new AccessDeniedException("no right");
}
@Override
public boolean supports(ConfigAttribute attribute) {
return true;
}
@Override
public boolean supports(Class<?> clazz) {
return true;
}
}
新增 MyFilterSecurityInterceptor
package com.us.example.service;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.access.SecurityMetadataSource;
import org.springframework.security.access.intercept.AbstractSecurityInterceptor;
import org.springframework.security.access.intercept.InterceptorStatusToken;
import org.springframework.security.web.FilterInvocation;
import org.springframework.security.web.access.intercept.FilterInvocationSecurityMetadataSource;
import org.springframework.stereotype.Service;
import java.io.IOException;
/**
* Created by yangyibo on 17/1/19.
*/
@Service
public class MyFilterSecurityInterceptor extends AbstractSecurityInterceptor implements Filter {
@Autowired
private FilterInvocationSecurityMetadataSource securityMetadataSource;
@Autowired
public void setMyAccessDecisionManager(MyAccessDecisionManager myAccessDecisionManager) {
super.setAccessDecisionManager(myAccessDecisionManager);
}
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
FilterInvocation fi = new FilterInvocation(request, response, chain);
invoke(fi);
}
public void invoke(FilterInvocation fi) throws IOException, ServletException {
//fi里面有一个被拦截的url
//里面调用MyInvocationSecurityMetadataSource的getAttributes(Object object)这个方法获取fi对应的所有权限
//再调用MyAccessDecisionManager的decide方法来校验用户的权限是否足够
InterceptorStatusToken token = super.beforeInvocation(fi);
try {
//执行下一个拦截器
fi.getChain().doFilter(fi.getRequest(), fi.getResponse());
} finally {
super.afterInvocation(token, null);
}
}
@Override
public void destroy() {
}
@Override
public Class<?> getSecureObjectClass() {
return FilterInvocation.class;
}
@Override
public SecurityMetadataSource obtainSecurityMetadataSource() {
return this.securityMetadataSource;
}
}
新增 MyInvocationSecurityMetadataSourceService
package com.us.example.service;
import com.us.example.dao.PermissionDao;
import com.us.example.domain.Permission;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.access.ConfigAttribute;
import org.springframework.security.access.SecurityConfig;
import org.springframework.security.web.FilterInvocation;
import org.springframework.security.web.access.intercept.FilterInvocationSecurityMetadataSource;
import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
import org.springframework.stereotype.Service;
import javax.servlet.http.HttpServletRequest;
import java.util.*;
/**
* Created by yangyibo on 17/1/19.
*/
@Service
public class MyInvocationSecurityMetadataSourceService implements
FilterInvocationSecurityMetadataSource {
@Autowired
private PermissionDao permissionDao;
private HashMap<String, Collection<ConfigAttribute>> map =null;
/**
* 加载权限表中所有权限
*/
public void loadResourceDefine(){
map = new HashMap<>();
Collection<ConfigAttribute> array;
ConfigAttribute cfg;
List<Permission> permissions = permissionDao.findAll();
for(Permission permission : permissions) {
array = new ArrayList<>();
cfg = new SecurityConfig(permission.getName());
//此处只添加了用户的名字,其实还可以添加更多权限的信息,例如请求方法到ConfigAttribute的集合中去。此处添加的信息将会作为MyAccessDecisionManager类的decide的第三个参数。
array.add(cfg);
//用权限的getUrl() 作为map的key,用ConfigAttribute的集合作为 value,
map.put(permission.getUrl(), array);
}
}
//此方法是为了判定用户请求的url 是否在权限表中,如果在权限表中,则返回给 decide 方法,用来判定用户是否有此权限。如果不在权限表中则放行。
@Override
public Collection<ConfigAttribute> getAttributes(Object object) throws IllegalArgumentException {
if(map ==null) loadResourceDefine();
//object 中包含用户请求的request 信息
HttpServletRequest request = ((FilterInvocation) object).getHttpRequest();
AntPathRequestMatcher matcher;
String resUrl;
for(Iterator<String> iter = map.keySet().iterator(); iter.hasNext(); ) {
resUrl = iter.next();
matcher = new AntPathRequestMatcher(resUrl);
if(matcher.matches(request)) {
return map.get(resUrl);
}
}
return null;
}
@Override
public Collection<ConfigAttribute> getAllConfigAttributes() {
return null;
}
@Override
public boolean supports(Class<?> clazz) {
return true;
}
}
修改home.html 文件
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org"
xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity4">
<head>
<meta content="text/html;charset=UTF-8"/>
<title sec:authentication="name"></title>
<link rel="stylesheet" th:href="@{css/bootstrap.min.css}" />
<style type="text/css">
body {
padding-top: 50px;
}
.starter-template {
padding: 40px 15px;
text-align: center;
}
</style>
</head>
<body>
<nav class="navbar navbar-inverse navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<a class="navbar-brand" href="#">Spring Security演示</a>
</div>
<div id="navbar" class="collapse navbar-collapse">
<ul class="nav navbar-nav">
<li><a th:href="@{/}"> 首页 </a></li>
<li><a th:href="@{/admin}"> admin </a></li>
</ul>
</div><!--/.nav-collapse -->
</div>
</nav>
<div class="container">
<div class="starter-template">
<h1 th:text="${msg.title}"></h1>
<p class="bg-primary" th:text="${msg.content}"></p>
<div sec:authorize="hasRole('ROLE_HOME')"> <!-- 用户类型为ROLE_ADMIN 显示 -->
<p class="bg-info" th:text="${msg.etraInfo}"></p>
</div>
<div sec:authorize="hasRole('ROLE_ADMIN')"> <!-- 用户类型为ROLE_ADMIN 显示 -->
<p class="bg-info">恭喜您,您有 ROLE_ADMIN 权限 </p>
</div>
<form th:action="@{/logout}" method="post">
<input type="submit" class="btn btn-primary" value="注销"/>
</form>
</div>
</div>
</body>
</html>
修改HomeController.java 文件
package com.us.example.controller;
import com.us.example.domain.Msg;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
/**
* Created by yangyibo on 17/1/18.
*/
@Controller
public class HomeController {
@RequestMapping("/")
public String index(Model model){
Msg msg = new Msg("测试标题","测试内容","欢迎来到HOME页面,您拥有 ROLE_HOME 权限");
model.addAttribute("msg", msg);
return "home";
}
@RequestMapping("/admin")
@ResponseBody
public String hello(){
return "hello admin";
}
}
测试检验
启动访问 http://localhost:8080/ 到登录页面
由于数据库的配置 admin 用户拥有 访问 home和admin 页面的权限。 abel 用户只有访问 home 的权限
使用admin 登录
参考资料: http://www.tuicool.com/articles/jq6fuur#c-23220 http://blog.csdn.net/u012367513/article/details/38866465
题外篇
记录下耗费我两天时间的一个问题
sec:authorize="hasRole('ROLE_ADMIN')"无作用的问题
查了很多资料都没有定位到问题
我的环境准备,首先,加入ThymeleafSecurity4依赖,如下:
<dependency>
<groupId>org.thymeleaf.extras</groupId>
<artifactId>thymeleaf-extras-springsecurity4</artifactId>
</dependency>
然后在页面文件中引入thymeleaf security
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:th="http://www.thymeleaf.org"
xmlns:sec="http://www.thymeleaf.org/extras/spring-security">
此时,在需要的地方同时增加以下两处sec:authorize标签
<li sec:authorize="hasRole('ROLE_ADMIN')">
This will only be displayed if authenticated user has role ROLE_ADMIN.
</li>
<li sec:authorize="hasAuthority('admin')">
This will only be displayed if authenticated user has role ROLE_ADMIN.
</li>
数据库中的role和permission
开始调试分析问题
查看thymeleaf security代码,发现上述标签的显示与否是由这个地方控制,AuthorizeAttrProcessor类中的isVisible方法
@Override
protected boolean isVisible(final Arguments arguments, final Element element,
final String attributeName) {
final String attributeValue = element.getAttributeValue(attributeName);
if (attributeValue == null || attributeValue.trim().equals("")) {
return false;
}
final IContext context = arguments.getContext();
if (!(context instanceof IWebContext)) {
throw new ConfigurationException(
"Thymeleaf execution context is not a web context (implementation of " +
IWebContext.class.getName() + ". Spring Security integration can only be used in " +
"web environements.");
}
final IWebContext webContext = (IWebContext) context;
final HttpServletRequest request = webContext.getHttpServletRequest();
final HttpServletResponse response = webContext.getHttpServletResponse();
final ServletContext servletContext = webContext.getServletContext();
final Authentication authentication = AuthUtils.getAuthenticationObject();
if (authentication == null) {
return false;
}
return AuthUtils.authorizeUsingAccessExpression(
arguments, attributeValue, authentication, request, response, servletContext);
}
进一步分析代码,发现调用到了AuthUtils中的authorizeUsingAccessExpression方法
public static boolean authorizeUsingAccessExpression(
final IProcessingContext processingContext,
final String accessExpression, final Authentication authentication,
final HttpServletRequest request, final HttpServletResponse response,
final ServletContext servletContext) {
/*省略无关代码*/
if (ExpressionUtils.evaluateAsBoolean(expressionObject, wrappedEvaluationContext)) {
if (logger.isTraceEnabled()) {
logger.trace("[THYMELEAF][{}] Checked authorization using access expression \"{}\" for user \"{}\". Access GRANTED.",
new Object[] {TemplateEngine.threadIndex(), accessExpression, (authentication == null? null : authentication.getName())});
}
return true;
}
if (logger.isTraceEnabled()) {
logger.trace("[THYMELEAF][{}] Checked authorization using access expression \"{}\" for user \"{}\". Access DENIED.",
new Object[] {TemplateEngine.threadIndex(), accessExpression, (authentication == null? null : authentication.getName())});
}
return false;
public final class ExpressionUtils {
public static boolean evaluateAsBoolean(Expression expr, EvaluationContext ctx) {
try {
return ((Boolean) expr.getValue(ctx, Boolean.class)).booleanValue();
}
catch (EvaluationException e) {
throw new IllegalArgumentException("Failed to evaluate expression '"
+ expr.getExpressionString() + "'", e);
}
}
}
然后到了SpelExpression中的getValue方法
@SuppressWarnings("unchecked")
@Override
public <T> T getValue(Object rootObject, Class<T> expectedResultType) throws EvaluationException {
if (this.compiledAst != null) {
try {
Object result = this.compiledAst.getValue(rootObject, null);
if (expectedResultType == null) {
return (T)result;
}
else {
return ExpressionUtils.convertTypedValue(getEvaluationContext(), new TypedValue(result), expectedResultType);
}
}
catch (Throwable ex) {
// If running in mixed mode, revert to interpreted
if (this.configuration.getCompilerMode() == SpelCompilerMode.MIXED) {
this.interpretedCount = 0;
this.compiledAst = null;
}
else {
// Running in SpelCompilerMode.immediate mode - propagate exception to caller
throw new SpelEvaluationException(ex, SpelMessage.EXCEPTION_RUNNING_COMPILED_EXPRESSION);
}
}
}
ExpressionState expressionState = new ExpressionState(getEvaluationContext(), toTypedValue(rootObject), this.configuration);
********TypedValue typedResultValue = this.ast.getTypedValue(expressionState);***********
checkCompile(expressionState);
return ExpressionUtils.convertTypedValue(expressionState.getEvaluationContext(), typedResultValue, expectedResultType);
}
问题出在加*号的一行,返回的对象内容为
false, Boolean
经过反复调试,尝试了sec:authorize="hasRole('ROLE_ADMIN')"、sec:authorize="hasRole('ADMIN')"、sec:authorize="ROLE_ADMIN"等多种组合方式,发现没有任何变化。
然后无意中看到了一篇文章,上面提到了sec:authorize="hasAuthority('ROLE_ADMIN')",尝试后发现生效。此时说明整体thymeleaf security配置是没有任何问题的,问题出在哪里?
进一步分析发现hasAuthority判定的是CustomUserService.java的loadUserByUsername方法返回的grantedAuthorities值。
public UserDetails loadUserByUsername(String username) {
SysUser user = userDao.findByUserName(username);
if (user != null) {
List<Permission> permissions = permissionDao.findByAdminUserId(user.getId());
List<GrantedAuthority> grantedAuthorities = new ArrayList <>();
for (Permission permission : permissions) {
if (permission != null && permission.getName()!=null) {
GrantedAuthority grantedAuthority = new SimpleGrantedAuthority(permission.getName());
//1:此处将权限信息添加到 GrantedAuthority 对象中,在后面进行全权限验证时会使用GrantedAuthority 对象。
grantedAuthorities.add(grantedAuthority);
}
}
return new User(user.getUsername(), user.getPassword(), grantedAuthorities);
} else {
throw new UsernameNotFoundException("admin: " + username + " do not exist!");
}
}
查看代码,发现此处只给增加了perimission,而没有增加role,根据这种猜想调试验证,果然如此,OK,修改代增加role,至此问题解决。
修改后的代码
public UserDetails loadUserByUsername(String username) {
SysUserBO user = sysUserService.getUserBO(username);
if (user != null) {
List<GrantedAuthority> grantedAuthorities = new ArrayList<>();
// 用于添加用户的权限。只要把用户权限添加到authorities 就万事大吉。
SysRoleBO role = user.getRoleBO();
if(null != role){
grantedAuthorities.add(new SimpleGrantedAuthority(role.getName()));
}
// 获取角色所拥有的所有权限,并添加到authorities
List<SysPermission> permissions = role.getPermissions();
for (SysPermission permission : permissions) {
if (permission != null && permission.getName() != null) {
// 1:此处将权限信息添加到 GrantedAuthority
// 对象中,在后面进行全权限验证时会使用GrantedAuthority 对象。
grantedAuthorities.add(new SimpleGrantedAuthority(permission.getName()));
}
}
return new User(user.getUsername(), user.getPassword(), grantedAuthorities);
} else {
throw new UsernameNotFoundException("admin: " + username + " do not exist!");
}
}
结论
- hasRole('ROLE_ADMIN')无效的问题,在于grantedAuthorities中不存在role值,同理如果不存在permission值,那么hasAuthority将会无效。
- spring security在处理role和permission的值时,默认会区ROLE_作为role的前缀。此处需要特别留意。
问题搞定,下班O(∩_∩)O哈哈~