添加httpmime依赖

pom.xml

@@ -58,6 +58,11 @@
 
 	<dependencies>
 		<dependency>
+			<groupId>org.apache.httpcomponents</groupId>
+			<artifactId>httpmime</artifactId>
+			<version>4.3.2</version>
+		</dependency>
+		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>