SpringSecurityOAuth2(3)自定义token信息

OAuth2默认的token返回最多只携带了5个参数（client_credentials模式只有4个没有refresh_token）下面是一个返回示例：

{
    "access_token": "1e93bc23-32c8-428f-a126-8206265e17b2",
    "token_type": "bearer",
    "refresh_token": "0f083e06-be1b-411f-98b0-72be8f1da8af",
    "expires_in": 3599,
    "scope": "auth api"
}

然后我们需要的token可能需要增加username等自定义参数：

{
    "access_token": "1e93bc23-32c8-428f-a126-8206265e17b2",
    "token_type": "bearer",
    "refresh_token": "0f083e06-be1b-411f-98b0-72be8f1da8af",
    "expires_in": 3599,
    "scope": "auth api",
    "username":"username"
}

具体实现自定义token步骤如下：新建一个自定义token信息的新建自定义token返回MyTokenEnhancer实现TokenEnhancer接口重写enhance方法：

/**
 * @Description 自定义token返回值
 * @Author wwz
 * @Date 2019/07/31
 * @Param
 * @Return
 */
public class MyTokenEnhancer implements TokenEnhancer {
    @Override
    public OAuth2AccessToken enhance(OAuth2AccessToken accessToken, OAuth2Authentication authentication) {
        User user = (User) authentication.getPrincipal();
        final Map<String, Object> additionalInfo = new HashMap<>();
        additionalInfo.put("username", user.getUsername());
        ((DefaultOAuth2AccessToken) accessToken).setAdditionalInformation(additionalInfo);
        return accessToken;
    }
}

然后在认证服务配置AuthorizationServerEndpointsConfigurer中加上 MyTokenEnhancer。这里划重点因为我这里指定了了defaultTokenServices()所以得在这个方法里加上配置 SpringSecurityOAuth2(3)自定义token信息