velocity.js 与json键值对问题

1. 数据库中存了一个json格式的字符串

 

{"1":"Disagree","2":"aSomewhat agree","3":"Somewhat disagree","4":"Agree","5":"Strongly disagree","6":"Strongly agree","7":"Neither agree nor disagree"}

2. 用velocity从后台取出之后,想之前在<body>标签里面直接调用

#set($labels = {"1":"Disagree","2":"aSomewhat agree","3":"Somewhat disagree","4":"Agree","5":"Strongly disagree","6":"Strongly agree","7":"Neither agree nor disagree"})
#foreach($!jsonKey in $labels.entrySet())
<div class = "col-sm-6" onmouseover="mouseOver()" onmouseout="mouseOut()">
	<label for="$!{jsonKey.value}" >$!{jsonKey.key}</label>
	<input id="$!{jsonKey.value}" type="radio"   name="$!{question.question}" value="$! 
          {jsonKey.value}" class="ng-pristine ng-untouched ng-empty ng-invalid ng-invalid- 
           required">
	<label for="$!{jsonKey.value}">$!{jsonKey.value} </label>
</div>
#end

3. 因为$labels里面的是json格式,因此需要利用map进行取值

4. 遍历json

#foreach($!jsonKey in $labels.entrySet())

5. 键值对

取键:$!jsonKey.key

取值:$!jsonKey.value

 

velovity中$后面有一个英文的叹号,是强制转换符,若内容为空,显示为空

 

如果说entrySet()里面是没有值的,注意!!! 一定是后台传过来的时候,格式不对

评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值