网络请求框架

NoHttp: http://blog.youkuaiyun.com/zl18603543572/article/details/51790169

                http://www.oschina.net/p/nohttp

OkHttp: http://blog.youkuaiyun.com/zl18603543572/article/details/51773376

                http://blog.youkuaiyun.com/lmj623565791/article/details/47911083

Volley: http://blog.youkuaiyun.com/zl18603543572/article/details/51804704

              http://www.kwstu.com/ArticleView/kwstu_20144118313429

AsyncHttp：http://www.cnblogs.com/angeldevil/p/3729808.html

Retrofit：http://blog.youkuaiyun.com/duanyy1990/article/details/52139294

HttpUrlConnection、HttpClient、AsyncHttpClient、Volley、okHttp、Retrofit的使用方法和比较：http://www.cnblogs.com/changyaohua/p/4992987.html