解决springboot集成activiti7工作流权限认证问题

旧城等待， 2024-04-06 12:24 177阅读 0赞

#### springboot集成activiti7工作流权限认证问题 ####

如果你的登录不是用的security方式， 集成后会有权限认证的问题，因为activiti7自带spring-security

代码  
1、重写security 的UserDetailsService方法

package com.xxx.activiti.config;
    
    import com.xxx.common.core.constant.SecurityConstants;
    import com.xxx.system.api.model.LoginUser;
    import com.xxx.system.api.system.RemoteUserService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.security.core.authority.SimpleGrantedAuthority;
    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.List;
    import java.util.Set;
    import java.util.stream.Collectors;
    
    @Service
    public class UserDetailsServiceImpl implements UserDetailsService {
        
    
        @Autowired
        private RemoteUserService remoteUserService;
    
        @Override
        public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        
            LoginUser user = remoteUserService.getUserInfo(username, SecurityConstants.INNER).getData();
            return createLoginUser(user);
        }
    
        public UserDetails createLoginUser(LoginUser user) {
        
            Set<String> postCode = user.getPostCode();
            postCode = postCode.parallelStream().map( s ->  "GROUP_" + s).collect(Collectors.toSet());
            postCode.add("ROLE_ACTIVITI_USER");
            List<SimpleGrantedAuthority> collect = postCode.stream().map(s -> new SimpleGrantedAuthority(s)).collect(Collectors.toList());
            return new User(user.getPermissions(), collect, user.getSysUser());
        }
    }

2、给auth赋值

package com.xxx.activiti.config;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.security.core.Authentication;
    import org.springframework.security.core.GrantedAuthority;
    import org.springframework.security.core.context.SecurityContextHolder;
    import org.springframework.security.core.context.SecurityContextImpl;
    import org.springframework.security.core.userdetails.UserDetails;
    import org.springframework.stereotype.Component;
    import javax.security.auth.Subject;
    import java.util.Collection;
    
    @Component
    public class SecurityActivitiUtil {
        
    
        @Autowired
        private UserDetailsServiceImpl userDetailsService;
    
        public void logInAs(String username) {
        
            UserDetails user = userDetailsService.loadUserByUsername(username);
            if (user == null) {
        
                throw new IllegalStateException("User " + username + " doesn't exist, please provide a valid user");
            }
    
            Authentication authentication = new Authentication() {
        
                @Override
                public String getName() {
        
                    return user.getUsername();
                }
    
                @Override
                public boolean implies(Subject subject) {
        
                    return false;
                }
    
                @Override
                public Collection<? extends GrantedAuthority> getAuthorities() {
        
                   // Set<String> postCode = user.getPostCode();
                    //List<SimpleGrantedAuthority> collect = postCode.stream().map(s -> new SimpleGrantedAuthority(s)).collect(Collectors.toList());
                    return user.getAuthorities();
                }
    
                @Override
                public Object getCredentials() {
        
                    return user.getPassword();
                }
    
                @Override
                public Object getDetails() {
        
    
                    return user;
                }
    
                @Override
                public Object getPrincipal() {
        
    
                    return user;
                }
    
                @Override
                public boolean isAuthenticated() {
        
                    return true;
                }
    
                @Override
                public void setAuthenticated(boolean b) throws IllegalArgumentException {
        
    
                }
            };
    
            SecurityContextImpl securityContext = new SecurityContextImpl();
            securityContext.setAuthentication(authentication);
            SecurityContextHolder.setContext(securityContext);
            org.activiti.engine.impl.identity.Authentication.setAuthenticatedUserId(username);
        }
    }

3、在每次调用工作流的方法前调用

SysUser sysUser= SecurityUtils.getLoginUser().getSysUser();
            //activiti7 权限认证
            securityActivitiUtil.logInAs(sysUser.getUserName());

4、另外说一下 remoteUserService.getUserInfo大致内容：  
主要是通过username获取用户信息，最重要的是包括roles集合：

/**
         * 获取当前用户信息
         */
        @InnerAuth
        @GetMapping("/info/{username}")
        public R<LoginUser> info(@PathVariable("username") String username)
        {
        
            SysUser sysUser = userService.selectUserByUserName(username);
            if (StringUtils.isNull(sysUser))
            {
        
                return R.fail("用户名或密码错误");
            }
            // 角色集合
            Set<String> roles = permissionService.getRolePermission(sysUser.getUserId());
            // 权限集合
            Set<String> permissions = permissionService.getMenuPermission(sysUser.getUserId());
            Set<String> postCode = postService.selectPostCodeByUserId(sysUser.getUserId());
            postCode = postCode.parallelStream().map( s ->  "GROUP_" + s).collect(Collectors.toSet());
            LoginUser sysUserVo = new LoginUser();
            sysUserVo.setSysUser(sysUser);
            sysUserVo.setRoles(roles);
            sysUserVo.setPermissions(permissions);
            sysUserVo.setPostCode(postCode);
            return R.ok(sysUserVo);
        }

**如果有人用过security做登录权限验证，那么这个问题很简单**