iailab-framework/iailab-common-security/src/main/java/com/iailab/framework/security/core/handler/AuthenticationEntryPointImpl.java

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package com.iailab.framework.security.core.handler;

import com.iailab.framework.common.exception.enums.GlobalErrorCodeConstants;
import com.iailab.framework.common.pojo.CommonResult;
import com.iailab.framework.common.util.servlet.ServletUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.security.web.access.ExceptionTranslationFilter;

import javax.servlet.FilterChain;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import static com.iailab.framework.common.exception.enums.GlobalErrorCodeConstants.UNAUTHORIZED;

/**
 * 访问一个需要认证的 URL 资源，但是此时自己尚未认证（登录）的情况下，返回 {@link GlobalErrorCodeConstants#UNAUTHORIZED} 错误码，从而使前端重定向到登录页
 *
 * 补充：Spring Security 通过 {@link ExceptionTranslationFilter#sendStartAuthentication(HttpServletRequest, HttpServletResponse, FilterChain, AuthenticationException)} 方法，调用当前类
 *
 * @author ruoyi
 */
@Slf4j
@SuppressWarnings("JavadocReference") // 忽略文档引用报错
public class AuthenticationEntryPointImpl implements AuthenticationEntryPoint {

    @Override
    public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException e) {
        log.debug("[commence][访问 URL({}) 时，没有登录]", request.getRequestURI(), e);
        // 返回 401
        ServletUtils.writeJSON(response, CommonResult.error(UNAUTHORIZED));
    }

}