优化security异常处理， token失效返回401， 其它返回500

mall-ebtp-cloud-security-starter/src/main/java/com/chinaunicom/mall/ebtp/cloud/security/starter/UserAuthenticationEntryPoint.java

@@ -9,6 +9,7 @@ import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
+import org.apache.commons.lang3.StringUtils;
 import org.springframework.http.HttpStatus;
 import org.springframework.security.core.AuthenticationException;
 import org.springframework.security.web.AuthenticationEntryPoint;
@@ -25,12 +26,12 @@ public class UserAuthenticationEntryPoint implements AuthenticationEntryPoint {
 	@Override
 	public void commence(HttpServletRequest request, HttpServletResponse response,
 			AuthenticationException authException) throws IOException, ServletException {
-		response.setStatus(HttpStatus.UNAUTHORIZED.value());
 		response.setContentType("application/json;charset=utf-8");
 
 		String code = (String) request.getSession().getAttribute("code");
 
-		Map<String, Object> map = adapterException(code);
+		Map<String, Object> map = adapterException(StringUtils.defaultIfBlank(code, "System Generic Error"), response);
+		map.put("success", "false");
 		map.put("path", request.getServletPath());
 		map.put("timestamp", String.valueOf(new Date().getTime()));
 
@@ -44,28 +45,28 @@ public class UserAuthenticationEntryPoint implements AuthenticationEntryPoint {
 	/**
 	 * @param code
 	 */
-	private Map<String, Object> adapterException(String code) {
-		if ("90403".equals(code)) {
-			return accessDenidedException(code);
+	private Map<String, Object> adapterException(String code, HttpServletResponse response) {
+		switch (code) {
+		case "90403":
+			return accessDenidedException(code, response);
+		case "90500":
+			return remoteTimeoutException(code, response);
+		default:
+			return globalException(code, response);
 		}
-
-		if ("90500".equals(code)) {
-			return remoteTimeoutException(code);
-		}
-
-		return globalException(code);
 	}
 
 	/**
-	 * token 失效异常
+	 * token 已失效
 	 * 
 	 * @param code
 	 * @return
 	 */
-	private Map<String, Object> accessDenidedException(String code) {
+	private Map<String, Object> accessDenidedException(String code, HttpServletResponse response) {
+		response.setStatus(HttpStatus.UNAUTHORIZED.value());
+
 		Map<String, Object> map = new HashMap<>();
 		map.put("code", code);
-		map.put("success", "false");
 		map.put("message", "登录已超期");
 
 		return map;
@@ -77,11 +78,12 @@ public class UserAuthenticationEntryPoint implements AuthenticationEntryPoint {
 	 * @param code
 	 * @return
 	 */
-	private Map<String, Object> remoteTimeoutException(String code) {
+	private Map<String, Object> remoteTimeoutException(String code, HttpServletResponse response) {
+		response.setStatus(HttpStatus.INTERNAL_SERVER_ERROR.value());
+
 		Map<String, Object> map = new HashMap<>();
 		map.put("code", code);
-		map.put("success", "false");
-		map.put("message", "token验证失败");
+		map.put("message", "网络繁忙，请稍后再试");
 
 		return map;
 	}
@@ -89,10 +91,11 @@ public class UserAuthenticationEntryPoint implements AuthenticationEntryPoint {
 	/**
 	 * @return
 	 */
-	private Map<String, Object> globalException(String code) {
+	private Map<String, Object> globalException(String code, HttpServletResponse response) {
+		response.setStatus(HttpStatus.UNAUTHORIZED.value());
+
 		Map<String, Object> map = new HashMap<>();
-		map.put("code", 500);
-		map.put("success", "false");
+		map.put("code", -1);
 		map.put("message", code);
 
 		return map;

mall-ebtp-cloud-security-starter/src/main/java/com/chinaunicom/mall/ebtp/cloud/security/starter/client/UserCenterClient.java

@@ -4,6 +4,7 @@ import org.springframework.cloud.openfeign.FeignClient;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 
+import com.chinaunicom.mall.ebtp.cloud.security.starter.config.FeignClientConfiguration;
 import com.chinaunicom.mall.ebtp.cloud.security.starter.entity.SecurityUser;
 import com.chinaunicom.mall.ebtp.cloud.security.starter.fallback.UserCenterClientFallback;
 
@@ -12,7 +13,7 @@ import com.chinaunicom.mall.ebtp.cloud.security.starter.fallback.UserCenterClien
  * 
  * @author Ajaxfan
  */
-@FeignClient(name = "${mall-ebtp.userinfo.id}", fallback = UserCenterClientFallback.class)
+@FeignClient(name = "${mall-ebtp.userinfo.id}", fallback = UserCenterClientFallback.class, configuration = FeignClientConfiguration.class)
 public interface UserCenterClient {
 
 	/**

mall-ebtp-cloud-security-starter/src/main/java/com/chinaunicom/mall/ebtp/cloud/security/starter/config/FeignClientConfiguration.java

@@ -0,0 +1,55 @@
+package com.chinaunicom.mall.ebtp.cloud.security.starter.config;
+
+import static feign.FeignException.errorStatus;
+
+import java.util.Calendar;
+import java.util.Date;
+import java.util.GregorianCalendar;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import feign.FeignException;
+import feign.Logger;
+import feign.RetryableException;
+import feign.codec.ErrorDecoder;
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+@Configuration
+public class FeignClientConfiguration {
+
+	@Bean
+	public Logger.Level feignLoggerLevel() {
+		return Logger.Level.BASIC;
+	}
+
+	@Bean
+	public ErrorDecoder errorDecoder() {
+		return (methodKey, response) -> {
+			FeignException exception = errorStatus(methodKey, response);
+
+			log.error("error message: {}", exception.getMessage());
+
+			int status = response.status();
+
+			if (status >= 400 && status <= 500) {// 客户端异常，启用feign的重试机制
+				return new RetryableException(response.status(), exception.getMessage(),
+						response.request().httpMethod(), exception, retryAfter(), response.request());
+			}
+			return exception;
+		};
+	}
+
+	/**
+	 * 延迟 n 秒后重试
+	 * 
+	 * @return
+	 */
+	private Date retryAfter() {
+		Calendar cal = GregorianCalendar.getInstance();
+
+		return cal.getTime();
+	}
+
+}

mall-ebtp-cloud-security-starter/src/main/java/com/chinaunicom/mall/ebtp/cloud/security/starter/fallback/UserCenterClientFallback.java

@@ -5,11 +5,15 @@ import org.springframework.stereotype.Component;
 import com.chinaunicom.mall.ebtp.cloud.security.starter.client.UserCenterClient;
 import com.chinaunicom.mall.ebtp.cloud.security.starter.entity.SecurityUser;
 
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
 @Component
 public class UserCenterClientFallback implements UserCenterClient {
 
 	@Override
 	public SecurityUser getUserInfo() {
+		log.info("remote access timeout.");
 		return null;
 	}