Maven：程序包org.apache.log4j不存在问题处理

 1 <dependency>  
 2        <groupId>log4j</groupId>  
 3        <artifactId>log4j</artifactId>  
 4        <version>1.2.15</version>  
 5        <exclusions>  
 6          <exclusion>  
 7            <groupId>javax.mail</groupId>  
 8            <artifactId>mail</artifactId>  
 9          </exclusion>  
10          <exclusion>  
11            <groupId>javax.jms</groupId>  
12            <artifactId>jms</artifactId>  
13          </exclusion>  
14          <exclusion>  
15            <groupId>com.sun.jdmk</groupId>  
16            <artifactId>jmxtools</artifactId>  
17          </exclusion>  
18          <exclusion>  
19            <groupId>com.sun.jmx</groupId>  
20            <artifactId>jmxri</artifactId>  
21          </exclusion>  
22        </exclusions>  
23        <scope>compile</scope>  
24      </dependency> 
25      
26 注意log4j的scope为<scope>compile</scope>