一、jackson 基础测试(简单对象反序列化)结果为:{userid:c4764ef5234440c0a5ce35ce24f0b94d,username:null,password:null,link:null,createTime:1496392724773,timestamp:1496392724773}{userid:c4764ef5234440c0a5ce35ce24f0b94d,username:null,password:null,link:null,createTime:1496392724773,timestamp:1496392724773}二、jackson 基础测试(list反序列化)结果为:[{userid:bec82f06ca3e426cb493f7ee06ca9a33,username:null,password:null,link:null,createTime:1496393056593,timestamp:1496393056593},{userid:bec82f06ca3e42