feat: add jwt interceptor

luoo_tag/src/main/java/com/luoo/tag/TagApplication.java

@@ -16,7 +16,9 @@ import org.springframework.core.env.Environment;
 import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
 
 import util.IdWorker;
-@SpringBootApplication(scanBasePackages = "com.luoo")
+import util.JwtUtil;
+
+@SpringBootApplication(scanBasePackages = "com.luoo.tag")
 @EnableEurekaClient
 @EnableDiscoveryClient
 @EnableFeignClients
@@ -47,4 +49,9 @@ public class TagApplication {
 		return new IdWorker(1, 1);
 	}
 
+	@Bean
+	public JwtUtil jwtUtil(){
+		return new JwtUtil();
+	}
+
 }

luoo_tag/src/main/java/com/luoo/tag/config/RequestContext.java

@@ -0,0 +1,34 @@
+package com.luoo.tag.config;
+
+import com.luoo.tag.pojo.UserInfo;
+
+import java.util.Objects;
+
+/**
+ * 请求上下文：用户信息
+ */
+public class RequestContext {
+    private final static ThreadLocal<UserInfo> THREAD_LOCAL = new ThreadLocal<>();
+
+    /**
+     * 设置用户信息
+     * @param id 用户ID
+     * @param name 用户名
+     */
+    public static void set(String id, String name) {
+        THREAD_LOCAL.set(UserInfo.builder().id(id).name(name).build());
+    }
+
+    public static UserInfo get() {
+        UserInfo userInfo = THREAD_LOCAL.get();
+        // TODO 测试值
+        if(Objects.isNull(userInfo)) {
+            userInfo = UserInfo.builder().id("1627863701048659968").name("foo").build();
+        }
+        return userInfo;
+    }
+
+    public static void remove() {
+        THREAD_LOCAL.remove();
+    }
+}

luoo_tag/src/main/java/com/luoo/tag/config/WebMvcConfig.java

@@ -1,11 +1,26 @@
 package com.luoo.tag.config;
 
+import com.luoo.tag.interceptor.JwtInterceptor;
+import lombok.RequiredArgsConstructor;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
 import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
 
 @Configuration
+@RequiredArgsConstructor
 public class WebMvcConfig extends WebMvcConfigurationSupport {
+	private final JwtInterceptor jwtInterceptor;
+
+	/**
+	 * 拦截器配置
+	 * @param registry
+	 */
+	protected void addInterceptors(InterceptorRegistry registry) {
+		registry.addInterceptor(jwtInterceptor).
+				//addPathPatterns("/**").
+				excludePathPatterns("/**");
+	}
 	@Override
 	protected void addResourceHandlers(ResourceHandlerRegistry registry) {
 		registry.addResourceHandler("doc.html").addResourceLocations("classpath:/META-INF/resources/");

luoo_tag/src/main/java/com/luoo/tag/interceptor/JwtInterceptor.java

@@ -0,0 +1,48 @@
+package com.luoo.tag.interceptor;
+
+import com.luoo.tag.config.RequestContext;
+import io.jsonwebtoken.Claims;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang.StringUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.lang.Nullable;
+import org.springframework.stereotype.Component;
+import org.springframework.web.servlet.HandlerInterceptor;
+import util.JwtUtil;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+/**
+ * JWT拦截器
+ */
+@Slf4j
+@Component
+@RequiredArgsConstructor
+public class JwtInterceptor implements HandlerInterceptor {
+    private final JwtUtil jwtUtil;
+
+    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception{
+        log.info("JWT拦截器");
+        String authHeader = request.getHeader("Authorization");
+        if(StringUtils.isBlank(authHeader) && !authHeader.startsWith("Bearer ")){
+            return true;
+        }
+
+        try {
+            String token = authHeader.substring(7);
+            Claims claims = jwtUtil.parseJWT(token);
+            RequestContext.set(claims.getId(), claims.getSubject());
+        } catch (Exception e) {
+            throw new RuntimeException("JWT令牌解析异常");
+        }
+
+        return true;
+    }
+
+    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler,
+                                @Nullable Exception ex) throws Exception {
+        RequestContext.remove();
+    }
+}

luoo_tag/src/main/java/com/luoo/tag/pojo/UserInfo.java

@@ -0,0 +1,21 @@
+package com.luoo.tag.pojo;
+
+import lombok.Builder;
+import lombok.Data;
+
+/**
+ * 用户信息
+ */
+@Data
+@Builder
+public class UserInfo {
+    /**
+     * 用户id
+     */
+    private String id;
+
+    /**
+     * 用户名
+     */
+    private String name;
+}