spring mvc 引入swagger2.4后，junit测试异常

spring版本为<spring.version>4.2.5.RELEASE</spring.version>
解决办法：
单元测试中加入注解@WebAppConfiguration

@RunWith(SpringJUnit4ClassRunner.class)@WebAppConfiguration@ContextConfiguration(locations = "classpath:applicationContext.xml")public class MatchTest extends AbstractJUnit4SpringContextTests{｝

pom.xml中引入高版本的servlet：

<dependency>    <groupId>javax.servlet</groupId>    <artifactId>javax.servlet-api</artifactId>    <version>3.0.1</version></dependency>