wxml代碼
<!--index.wxml--> <view class="container"> <view class="section"> <view class="section__title">日期選擇器</view> <picker mode="date" value="{{date}}" start="2015-09-01" end="2017-09-01" bindchange="bindDateChange"> <view class="picker"> 當前選擇: {{date}} </view> </picker> <button id="btn" bindtap="abc" >提交</button> <view>返回的值:<text>{{date2}}</text></view> </view> </view>
index.js代碼
abc: function (e) {//該函數用於和后台交互
var that = this;
wx.request({
url: 'https://www.kjch.xyz/data/Data', //僅為示例，並非真實的接口地址
data: {
date:this.date,
},
header: {
'content-type': 'application/json' // 默認值
},
success(res) {
console.log(res.data)
//var date = new Date(res.data);
//var abc = format.formatTime(res.data.expirationDate, 'Y/M/D');
console.log(res.data);
//if(this.data!=""){
that.setData({
date2: res.data
})
// }
}
})
},
JAVA代碼
// 跨域
response.setHeader("Access-Control-Allow-Origin", "*");
String date = request.getParameter("date");//接受傳入的字符串類型日期
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");格式化日期類型
System.out.println(date);
//如果傳入的值為空則新建一個Date對象
if (date == "undefined" || date == null || date == "") {
date = sdf.format(new Date());
}
JsonUtil.printJson(response, date);
JAVA 轉Json代碼
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public
static
void
printJson(HttpServletResponse response, Object obj)
throws
IOException {
// 返回數據，返回數據類型是json
response.setContentType(
"application/json"
);
// 返回數據編碼UTF-8
response.setCharacterEncoding(
"UTF-8"
);
// 返回數據，通過gson將數據返回給Ajax 通過gson工具提高工作效率
response.getWriter().write(
new
Gson().toJson(obj));
}
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