wvp-gb28181-pro/src/main/java/com/genersoft/iot/vmp/conf/security/AnonymousAuthenticationEntryPoint.java

package com.genersoft.iot.vmp.conf.security;

import com.alibaba.fastjson.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * 处理匿名用户访问逻辑
 */
@Component
public class AnonymousAuthenticationEntryPoint implements AuthenticationEntryPoint {

    private final static Logger logger = LoggerFactory.getLogger(DefaultUserDetailsServiceImpl.class);

    @Override
    public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException e) {
//        logger.debug("用户需要登录，访问[{}]失败，AuthenticationException=[{}]", request.getRequestURI(), e.getMessage());
        // 允许跨域
        response.setHeader("Access-Control-Allow-Origin", "*");
        // 允许自定义请求头token(允许head跨域)
        response.setHeader("Access-Control-Allow-Headers", "token, Accept, Origin, X-Requested-With, Content-Type, Last-Modified");
        response.setHeader("Content-type", "application/json;charset=UTF-8");
        JSONObject jsonObject = new JSONObject();
        jsonObject.put("code", "-1");
        jsonObject.put("msg", "请登录后重新请求");
        if (request.getRequestURI().contains("api/user/login")){
            jsonObject.put("msg", e.getMessage());
        }
        response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
        try {
            response.getWriter().print(jsonObject.toJSONString());
        } catch (IOException ioException) {
            ioException.printStackTrace();
        }
    }
}