添加guava 依赖

pom.xml

@@ -281,7 +281,11 @@
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
-
+		<dependency>
+			<groupId>com.google.guava</groupId>
+			<artifactId>guava</artifactId>
+			<version>20.0</version>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework.cloud</groupId>
 			<artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
@@ -290,6 +294,10 @@
 					<groupId>commons-lang</groupId>
 					<artifactId>commons-lang</artifactId>
 				</exclusion>
+				<exclusion>
+					<artifactId>guava</artifactId>
+					<groupId>com.google.guava</groupId>
+				</exclusion>
 			</exclusions>
 		</dependency>
 	</dependencies>