谷歌访问助手：                 https://github.com/haotian-wang/google-access-helper

菜鸟教程：                         http://www.runoob.com/

centos下载：                     http://mirror.centos.org/

计算机基础：                      http://www.study-area.org/compu/compu.htm

网络基础：                         http://www.study-area.org/network/network.htm

maven资源库查询：         http://mvnrepository.com/artifact/com.amazonaws/aws-java-sdk-s3/1.11.311

提问技巧：                          http://phorum.vbird.org/viewtopic.php?t=96

在线接口测试工具：           http://www.atool.org/httptest.php?body_params=on&body_headers=on

备用在线接口测试：           https://www.36nu.com/apiTest

jpa中文官方文档：             https://wenku.baidu.com/view/8b7e9e4d2b160b4e767fcf24.html

hibernate中文官方文档：  http://docs.jboss.org/hibernate/core/3.6/reference/zh-CN/html_single/

zabbix官方文档：              https://www.zabbix.com/documentation/2.4/manual/installation/install_from_packages

springboot生成工具：      http://start.spring.io/

Linux中文在线文档：        http://linux.51yip.com/

在线cron表达式：             http://cron.qqe2.com/