maven3使用junit4时需指定org.apache.maven.surefire为surefire-junit47
maven3使用junit4时需指定
org.apache.maven.surefire为surefire-junit47,不然会报如下异常：

<build>  <plugins>    <plugin>    <groupId>org.apache.maven.plugins</groupId>    <artifactId>maven-surefire-plugin</artifactId>    <version>2.12</version>    <dependencies>      <dependency>        <groupId>org.apache.maven.surefire</groupId>        <artifactId>surefire-junit47</artifactId>        <version>2.12</version>      </dependency>    </dependencies>   </plugin>  </plugins>  </build>