Maven 仓库中没有 Hadoop 的源代码包，网络上也找不到可以直接用的，于是在官网下载整个Hadoop-1.2.1 包，提取出相应的源代码，打包后丢给 Eclipse ，仍然无法显示（奇怪，）。
解决步骤：
1，Eclipse 新建 Maven 项目，groupId 随意（建议不要为 org.apache.hadoop），artifactId 为 hadoop-core， 版本 1.2.1， package 为 jar
2，把Hadoop 源码放入 src/main/java 中
3，编辑pom.xml，引入依赖（详见下文）
4，编辑pom.xml，添加相应插件（javaDoc 和 source)
5，mvn install
6，更新相关项目对Hadoop 的引用
7，发布时记得改回来：）
抛砖引玉，如果有更好的解决麻烦告知，先谢过。
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.yourcomany</groupId> <artifactId>hadoop-core</artifactId> <version>1.2.1</version> <dependencies> <dependency> <groupId>commons-cli</groupId> <artifactId>commons-cli</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>xmlenc</groupId> <artifactId>xmlenc</artifactId> <version>0.52</version> </dependency> <dependency> <groupId>com.sun.jersey</groupId> <artifactId>jersey-core</artifactId> <version>1.8</version> </dependency> <dependency> <groupId>com.sun.jersey</groupId> <artifactId>jersey-json</artifactId> <version>1.8</version> </dependency> <dependency> <groupId>com.sun.jersey</groupId> <artifactId>jersey-server</artifactId> <version>1.8</version> </dependency> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.1</version> </dependency> <dependency> <groupId>commons-httpclient</groupId> <artifactId>commons-httpclient</artifactId> <version>3.0.1</version> </dependency> <dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> <version>1.4</version> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-math</artifactId> <version>2.1</version> </dependency> <dependency> <groupId>commons-configuration</groupId> <artifactId>commons-configuration</artifactId> <version>1.6</version> </dependency> <dependency> <groupId>commons-net</groupId> <artifactId>commons-net</artifactId> <version>1.4.1</version> </dependency> <dependency> <groupId>org.mortbay.jetty</groupId> <artifactId>jetty</artifactId> <version>6.1.26</version> </dependency> <dependency> <groupId>org.mortbay.jetty</groupId> <artifactId>jetty-util</artifactId> <version>6.1.26</version> </dependency> <dependency> <groupId>tomcat</groupId> <artifactId>jasper-runtime</artifactId> <version>5.5.12</version> </dependency> <dependency> <groupId>tomcat</groupId> <artifactId>jasper-compiler</artifactId> <version>5.5.12</version> </dependency> <dependency> <groupId>org.mortbay.jetty</groupId> <artifactId>jsp-api-2.1</artifactId> <version>6.1.14</version> </dependency> <dependency> <groupId>org.mortbay.jetty</groupId> <artifactId>jsp-2.1</artifactId> <version>6.1.14</version> </dependency> <dependency> <groupId>commons-el</groupId> <artifactId>commons-el</artifactId> <version>1.0</version> </dependency> <dependency> <groupId>net.java.dev.jets3t</groupId> <artifactId>jets3t</artifactId> <version>0.6.1</version> </dependency> <dependency> <groupId>hsqldb</groupId> <artifactId>hsqldb</artifactId> <version>1.8.0.10</version> </dependency> <dependency> <groupId>oro</groupId> <artifactId>oro</artifactId> <version>2.0.8</version> </dependency> <dependency> <groupId>org.eclipse.jdt</groupId> <artifactId>core</artifactId> <version>3.1.1</version> </dependency> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-mapper-asl</artifactId> <version>1.8.8</version> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> <scope>provided</scope> </dependency> <dependency> <groupId>commons-net</groupId> <artifactId>commons-net</artifactId> <version>3.3</version> <scope>provided</scope> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.5</version> <scope>provided</scope> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-daemon</artifactId> <version>1.0.9</version> <scope>provided</scope> </dependency> <dependency> <groupId>org.apache.mahout.kosmofs</groupId> <artifactId>kfs</artifactId> <version>0.3</version> <scope>provided</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.7</source> <target>1.7</target> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-javadoc-plugin</artifactId> <executions> <execution> <id>attach-javadocs</id> <goals> <goal>jar</goal> </goals> </execution> </executions> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-source-plugin</artifactId> <executions> <execution> <id>attach-sources</id> <goals> <goal>jar</goal> </goals> </execution> </executions> </plugin> </plugins> </build></project>