spring5_demo1/spring5-auth/spring5-auth-client/src/main/java/com/yaozhitech/spring5/jwt/JWTShiroRealm.java

package com.yaozhitech.spring5.jwt;

import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;

import com.yaozhitech.spring5.dto.UserDto;
import com.yaozhitech.spring5.service.UserService;
import com.yaozhitech.spring5.utils.JwtUtils;


/**
 * 自定义身份认证
 * 基于HMAC（ 散列消息认证码）的控制域
 */

public class JWTShiroRealm extends AuthorizingRealm {

    protected UserService userService;

    public JWTShiroRealm(UserService userService){
        this.userService = userService;
        this.setCredentialsMatcher(new JWTCredentialsMatcher());
    }

    @Override
    public boolean supports(AuthenticationToken token) {
        return token instanceof JWTToken;
    }

    /**
     * 认证信息.(身份验证) : Authentication 是用来验证用户身份
     * 默认使用此方法进行用户名正确与否验证，错误抛出异常即可。
     */
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authcToken) throws AuthenticationException {    
        JWTToken jwtToken = (JWTToken) authcToken;
        String token = jwtToken.getToken();
        
        UserDto user = userService.getJwtTokenInfo(JwtUtils.getUsername(token));
        if(user == null)
            throw new AuthenticationException("token过期，请重新登录");

        SimpleAuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo(user, user.getSalt(), "jwtRealm");

        return authenticationInfo;
    }

    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        return new SimpleAuthorizationInfo();
    }
}