finish basic jwt func

whycxzp

2021-01-20 129bc8f0c9bce0306aa99fafde97689f645dbbb5

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package com.whyc.filter;
 
import com.google.gson.Gson;
import com.google.gson.JsonObject;
import com.whyc.constant.SuperConstant;
import com.whyc.dto.Response;
import com.whyc.manager.JWTManager;
import lombok.extern.slf4j.Slf4j;
import org.apache.shiro.web.filter.authc.FormAuthenticationFilter;
import org.apache.shiro.web.util.WebUtils;
import org.json.JSONObject;
import org.springframework.util.StringUtils;
 
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
 
/**
 * 登录验证过滤器
 */
@Slf4j
public class JwtAuthcFilter extends FormAuthenticationFilter {
    private JWTManager jwtManager;
 
    public JwtAuthcFilter(JWTManager jwtManager) {
        this.jwtManager = jwtManager;
    }
 
    @Override
    protected boolean isAccessAllowed(ServletRequest request, ServletResponse response, Object mappedValue) {
        log.debug("是否允许访问 方法执行了");
        String jwt = WebUtils.toHttp(request).getHeader(SuperConstant.AUTHORIZATION);
        if(!StringUtils.isEmpty(jwt)) {
            boolean verifyToken = jwtManager.verifyToken(jwt,request);
            if (verifyToken) {
                return super.isAccessAllowed(request, response, mappedValue);
            } else {
                return false;
            }
        }
        //不存在则走原始校验
        return super.isAccessAllowed(request, response, mappedValue);
    }
 
    /**
     * 访问拒绝时调用
     * @param request
     * @param response
     * @return
     * @throws Exception
     */
    @Override
    protected boolean onAccessDenied(ServletRequest request, ServletResponse response) throws Exception {
        log.debug("访问被拒绝了");
        String jwt = WebUtils.toHttp(request).getHeader(SuperConstant.AUTHORIZATION);
        if(!StringUtils.isEmpty(jwt)){
            Response myResponse = new Response().set(1,"未登录或者登录超时");
            response.setCharacterEncoding("UTF-8");
            response.setContentType("application/json;charset=utf-8");
            Gson gson = new Gson();
            response.getWriter().write(gson.toJson(myResponse));
            return false;
        }
        return super.onAccessDenied(request, response);
    }
}