缺少commons-fileupload依赖:
解决办法:
第一步:在父工程中声明依赖:
<properties>
<junit.version>4.10</junit.version>
<spring.version>4.1.0.RELEASE</spring.version>
<mybatis.version>3.2.8</mybatis.version>
<mybatis.spring.version>1.2.2</mybatis.spring.version>
<mybatis.paginator.version>1.2.15</mybatis.paginator.version>
<mysql.version>5.1.32</mysql.version>
<slf4j.version>1.6.4</slf4j.version>
<jackson.version>2.3.0</jackson.version>
<druid.version>1.0.9</druid.version>
<httpclient.version>4.5.3</httpclient.version>
<jstl.version>1.2</jstl.version>
<servlet-api.version>2.5</servlet-api.version>
<jsp-api.version>2.0</jsp-api.version>
<joda-time.version>2.5</joda-time.version>
<commons-lang3.version>3.3.2</commons-lang3.version>
<commons-io.version>1.3.2</commons-io.version>
<commons-fileupload.version>1.3</commons-fileupload.version>
</properties>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${commons-fileupload.version}</version>
</dependency>
第二步:在web工程导入依赖:
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-fileupload</artifactId>
</dependency>