极光IM 调用获取消息接口报错com.google.gson.JsonSyntaxException: java.lang.NumberFormatException

调用消息接口报错 求解是啥问题？：

操作步骤：
1、定义这个方法 获取历史消息

2、然后进行本地调用：
http://localhost:8089/jiguang/get_history_message?count=1&begin_time=2019-08-27 15:00:00&end_time=2019-08-28 18:00:100

查了下数据是这样的格式：
{
"total": 77,
"cursor": "14919FF5BCE7A7770C1E8F551E46B5D6",
"count": 1,
"messages": [{
"from_type": "user",
"from_id": "15158152867",
"target_appkey": "578196a7859edc18357d698f",
"set_from_name": 0,
"create_time": 1566967626852,
"target_name": "nickname",
"from_appkey": "578196a7859edc18357d698f",
"target_type": "single",
"from_platform": "web",
"target_id": "test0022",
"sui_mtime": 1566813517,
"from_name": "15158152867",
"version": 1,
"msg_body": {
"text": "111"
},
"msg_type": "text",
"msgid": 4639061411,
"msg_ctime": 1566967627035,
"msg_level": 0
}]
}