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package com.java1234.interceptor;import com.java1234.util.JwtUtils;
import com.java1234.util.StringUtil;
import io.jsonwebtoken.Claims;
import org.springframework.web.method.HandlerMethod;
import org.springframework.web.servlet.HandlerInterceptor;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;/*** 鉴权拦截器* @author java1234_小锋* @site www.java1234.com* @company Java知识分享网* @create 2021-01-29 14:11*/
public class SysInterceptor implements HandlerInterceptor {@Overridepublic boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {String path=request.getRequestURI();System.out.println(path);if(handler instanceof HandlerMethod){String token = request.getHeader("token");System.out.println("token:"+token);if(StringUtil.isEmpty(token)){System.out.println("token为空！");throw new RuntimeException("签名验证不存在");}else{Claims claims = JwtUtils.validateJWT(token).getClaims();if(claims!=null){System.out.println("验证成功");return true;}else{System.out.println("验证失败");throw new RuntimeException("签名失败");}}}else{return true;}}}

新建WebAppConfigurer

package com.java1234.config;import com.java1234.interceptor.SysInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;/*** @author java1234_小锋 （公众号：java1234）* @site www.java1234.vip* @company 南通小锋网络科技有限公司*/
@Configuration
public class WebAppConfigurer implements WebMvcConfigurer {@Beanpublic SysInterceptor sysInterceptor(){return new SysInterceptor();}@Overridepublic void addInterceptors(InterceptorRegistry registry) {String[] patterns=new String[]{"/user/wxlogin","/image/**"};registry.addInterceptor(sysInterceptor()).addPathPatterns("/**").excludePathPatterns(patterns);}@Overridepublic void addCorsMappings(CorsRegistry registry) {registry.addMapping("/**").allowedOrigins("*").allowCredentials(true).allowedMethods("GET", "HEAD", "POST", "PUT", "DELETE","OPTIONS").maxAge(3600);}
}