网上下载了demo，里面是根据code==200来判断的，我的code也是200，拼接地址还是显示不了，
下面是complete打印的Log信息：
key: 94c2bca90f9ef38e1464771235992,info: {ver:7.2.0,ResponseInfo:1464771236008538,status:200, reqId:dEwAAP9I1uCu6VMU, xlog:s.ph;s.put.tw;s.put.tr:2;s.put.tw;s.put.tr:3;s.ph;s.put.tw;s.put.tr:3;s.ph;PFDS:4;PFDS:8;PFDS:9;rs20_1.sel/not found;rs19_1.sel/not found;rdb.g/no such key;DBD/404;v4.get:3/Document not found;rs20_1.ins;qtbl.ins:5;mc.s;RS:6;rs.put:7;rs-upload.putFile:19;UP:21, xvia:, host:upload.qiniu.com, path:/, ip:/219.135.102.34:80, port:80, duration:5.000000 s, time:1464771241, sent:0,error:null}, response: {"hash":"FogwJy-eWgIWkFTr5Jqtw3gZeIkW","key":"94c2bca90f9ef38e1464771235992"}