The POM for xxxx is missing, no dependency information available
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很久以前用Maven的时候基本都是一个工程，后来感觉太落伍了，就根据geoserver源码开始分模块对功能进行优化。后来有个新来的同事也碰到了这个问题，我就给他解决一下，顺便把以前的心得记录一下，日子久了，什么都容易忘。
用maven搭建多模块工程，这个过程我就不再赘述了，网上大把的帖子。这里引用一个感觉还不错：
http://www.cnblogs.com/quanyongan/archive/2013/05/28/3103243.html（转载借用）
首先建好工程，如图，一个父工程，三个子模块：qgg-web依赖qgg-core和qggservice
如果你要是在qgg-web上启动程序，就会报错，如下图
[WARNING] The POM for com.sdzx:qgg-core:jar:0.0.1-SNAPSHOT is missing, no dependency information available
[WARNING] The POM for com.sdzx:qgg-service:jar:0.0.1-SNAPSHOT is missing, no dependency information available
为什么呢，是你的用法错误，你这这里折腾一百回也会错误。有人说在只要把三个子模块mvn install一下就没有错误了，这就又衍生了一个问题，就是你在修改qgg-core以后，在qgg-web中引用qgg-core的类就会发生“找不到某个类或者找不到某个方法的错误。
正确的用法是在父工程的pom.xml上执行程序，如图
执行成功
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