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@@ -0,0 +1,136 @@
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+package com.gyee.table.jwt.filter;
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+
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+import com.alibaba.fastjson.JSON;
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+import com.auth0.jwt.exceptions.JWTVerificationException;
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+import com.auth0.jwt.exceptions.TokenExpiredException;
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+import com.gyee.table.jwt.auth.JwtToken;
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+import com.gyee.table.utils.StringUtil;
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+import com.gyee.table.vo.AjaxResult;
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+import org.apache.shiro.authc.AuthenticationException;
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+import org.apache.shiro.web.filter.AccessControlFilter;
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+import org.apache.shiro.web.util.WebUtils;
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+import org.slf4j.Logger;
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+import org.slf4j.LoggerFactory;
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+import org.springframework.http.HttpStatus;
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+import org.springframework.web.bind.annotation.RequestMethod;
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+
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+import javax.servlet.ServletRequest;
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+import javax.servlet.ServletResponse;
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+import javax.servlet.http.HttpServletRequest;
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+import javax.servlet.http.HttpServletResponse;
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+import java.io.IOException;
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+import java.io.PrintWriter;
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+
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+/**
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+ * jwt 自定义拦截器
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+ *
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+ * @author ruoyi
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+ */
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+public class JwtFilter extends AccessControlFilter
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+{
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+ private static final Logger LOGGER = LoggerFactory.getLogger(JwtFilter.class);
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+
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+ private static final String AUTHZ_HEADER = "token";
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+
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+ private final ThreadLocal<String> MSG_HOLDER = new ThreadLocal<>();
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+
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+ @Override
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+ public boolean onPreHandle(ServletRequest request, ServletResponse response, Object mappedValue) throws Exception
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+ {
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+ return super.onPreHandle(request, response, mappedValue);
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+ }
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+
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+ @Override
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+ protected boolean isAccessAllowed(ServletRequest request, ServletResponse response, Object mappedValue) throws Exception
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+ {
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+ return this.executeLogin(request, response);
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+ }
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+
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+ /**
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+ * 执行登录方法(UserRealm判断,异常返回false)
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+ */
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+ protected boolean executeLogin(ServletRequest request, ServletResponse response) throws Exception
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+ {
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+ String token = WebUtils.toHttp(request).getHeader(AUTHZ_HEADER);
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+ if (StringUtil.isEmpty(token))
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+ {
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+ MSG_HOLDER.set("消息头不正确,header需要携带token参数");
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+ return false;
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+ }
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+ try
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+ {
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+ // 断是否有权限
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+ JwtToken jwtToken = new JwtToken(token);
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+ this.getSubject(request, response).login(jwtToken);
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+ return true;
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+ }
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+ catch (AuthenticationException e)
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+ {
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+ if (e.getCause() instanceof TokenExpiredException)
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+ {
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+ MSG_HOLDER.set("token已过期");
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+ }
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+ else if (e.getCause() instanceof JWTVerificationException)
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+ {
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+ MSG_HOLDER.set("用户密码错误");
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+ }
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+ else
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+ {
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+ MSG_HOLDER.set("用户信息验证失败:" + e.getMessage());
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+ }
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+ return false;
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+ }
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+ }
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+
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+ /**
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+ * 请求前处理,处理跨域
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+ */
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+ @Override
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+ protected boolean preHandle(ServletRequest request, ServletResponse response) throws Exception
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+ {
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+ HttpServletRequest httpServletRequest = (HttpServletRequest) request;
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+ HttpServletResponse httpServletResponse = (HttpServletResponse) response;
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+ httpServletResponse.setHeader("Access-control-Allow-Origin", httpServletRequest.getHeader("Origin"));
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+ httpServletResponse.setHeader("Access-Control-Allow-Methods", "GET,POST,OPTIONS,PUT,DELETE");
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+ httpServletResponse.setHeader("Access-Control-Allow-Headers", httpServletRequest.getHeader("Access-Control-Request-Headers"));
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+ // 跨域时,option请求直接返回正常状态
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+ if (httpServletRequest.getMethod().equals(RequestMethod.OPTIONS.name()))
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+ {
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+ httpServletResponse.setStatus(HttpStatus.OK.value());
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+ return false;
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+ }
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+ return super.preHandle(request, response);
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+ }
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+
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+ /**
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+ * 异常处理
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+ */
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+ @Override
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+ protected boolean onAccessDenied(ServletRequest request, ServletResponse response) throws Exception
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+ {
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+ this.jwtFail(request, response, 401, "对不起,您无权限进行操作!");
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+ return false;
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+ }
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+
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+ /**
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+ * 认证失败,异常返回
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+ */
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+ protected void jwtFail(ServletRequest request, ServletResponse response, int code, String message)
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+ {
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+ HttpServletResponse httpResponse = WebUtils.toHttp(response);
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+ String contentType = "application/json;charset=UTF-8";
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+ httpResponse.setStatus(401);
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+ httpResponse.setContentType(contentType);
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+ try
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+ {
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+ String msg = StringUtil.isNotEmpty(MSG_HOLDER.get()) ? MSG_HOLDER.get() : message;
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+ AjaxResult ajaxResult = new AjaxResult().put(AjaxResult.CODE_TAG, code).put(AjaxResult.MSG_TAG, msg);
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+ PrintWriter printWriter = httpResponse.getWriter();
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+ printWriter.append(JSON.toJSONString(ajaxResult));
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+ }
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+ catch (IOException e)
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+ {
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+ LOGGER.error("sendChallenge error,can not resolve httpServletResponse");
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+ }
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+ }
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+}
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