hadoop委以

hadoop依赖

hadoop-common包依赖了servlet-api, jasper-runtime等可能与当前环境冲突的jar包，由于这些都是通过依赖关系链产生的关系，所以非常不容易被察觉。

 

 

<dependency>      <groupId>org.apache.hadoop</groupId>      <artifactId>hadoop-common</artifactId>      <version>2.2.0</version>      <exclusions>          <exclusion>              <artifactId>servlet-api</artifactId>              <groupId>javax.servlet</groupId>          </exclusion>          <exclusion>              <artifactId>jasper-compiler</artifactId>              <groupId>tomcat</groupId>          </exclusion>          <exclusion>              <artifactId>jasper-runtime</artifactId>              <groupId>tomcat</groupId>          </exclusion>          <exclusion>              <artifactId>jsp-api</artifactId>              <groupId>javax.servlet.jsp</groupId>          </exclusion>      </exclusions>  </dependency>    <dependency>      <groupId>org.apache.hadoop</groupId>      <artifactId>hadoop-hdfs</artifactId>      <version>2.2.0</version>      <exclusions>          <exclusion>              <artifactId>servlet-api</artifactId>              <groupId>javax.servlet</groupId>          </exclusion>      </exclusions>  </dependency>