Maven搭建hadoop环境报Missing artifact jdk.tools:jdk.tools:jar:1.6

原文地址：http://blog.csdn.net/honglei915/article/details/38087959

Maven引入Hadoop依赖报错：Missing artifact jdk.tools:jdk.tools:jar:1.6

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1. <dependency>  
2.     <groupId>org.apache.hadoop</groupId>  
3.     <artifactId>hadoop-mapreduce-client-core</artifactId>  
4.     <version>2.4.0</version>              
5. </dependency>  

原因是缺少tools.jar的依赖，tools.jar在jdk的安装目录中提供了，所以改成如下形式解决此问题：

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1. <dependency>  
2.     <groupId>org.apache.hadoop</groupId>  
3.     <artifactId>hadoop-mapreduce-client-core</artifactId>  
4.     <version>2.4.0</version>  
5.     <exclusions>  
6.         <exclusion>  
7.             <groupId>jdk.tools</groupId>  
8.             <artifactId>jdk.tools</artifactId>  
9.         </exclusion>  
10.     </exclusions>  
11. </dependency>  
12. <dependency>  
13.     <groupId>jdk.tools</groupId>  
14.     <artifactId>jdk.tools</artifactId>  
15.     <version>1.6</version>  
16.     <scope>system</scope>  
17.     <systemPath>${JAVA_HOME}/lib/tools.jar</systemPath>  
18. </dependency>