1. http://blog.csdn.net/attilax/article/details/25567475
2. https://wenku.baidu.com/view/6a4d1b207275a417866fb84ae45c3b3567ecddd8.html
3. http://www.cnblogs.com/littleatp/p/4815921.html
barcode4j用法
原文：http://www.cnblogs.com/alisonGavin/p/7508007.html
