js怎样获得后台Model中的值

发布网友 发布时间：2022-04-29 13:58

我来回答

共2个回答

热心网友 时间：2022-04-29 15:20

获取id   ${user.id}

获取name ${user.name}

获取company ${user.company}

JS中直接从java后台获得对象的值（数组的值）

这里举得例子是：JS直接从后台Contorller中（SpringMVC中的model中）获得数值的值

Contorller 此处将 talentIntegralRecordsDay talentIntegralRecordsIntegral 两个数组用JSON.toJSONString()封装。

@SuppressWarnings("deprecation")

@RequestMapping("/integralParadise")    public ModelAndView Welcome(HttpServletRequest request){

Users user = userService.currentUser(request);    

user.getTalentUser().getIntegral();

System.out.println(user.getTime().getDate());

TalentIntegralRecord[] signInTalentIntegralRecords= wechatIntegralService.getUserSignInTalentIntegralRecords(user.getId());        int size = signInTalentIntegralRecords.length;        int[] talentIntegralRecordsDay = new int[size];

Long[] talentIntegralRecordsIntegral = new Long[size];        for(int i=0;i<signInTalentIntegralRecords.length;i++){

talentIntegralRecordsDay[i]=signInTalentIntegralRecords[i].getOperatorTime().getDate();

talentIntegralRecordsIntegral[i]=signInTalentIntegralRecords[i].getIntegral();

}

Map<String,Object> map = new HashMap<String,Object>();

map.put("talentIntegralRecordsDay", JSON.toJSONString(talentIntegralRecordsDay));

map.put("talentIntegralRecordsIntegral", JSON.toJSONString(talentIntegralRecordsIntegral));        return new ModelAndView("wechat/integralParadise/rili",map);

}

前台JSP 因为用到两个数组数据的JS代码为页面引用的JS代码所以要在页面中先声明获得后台两个数组（这段JS代码应在引用的JS文件前面）

<script type="text/javascript"> 

$(document).ready(function(){

window.talentIntegralRecordsDay = ${talentIntegralRecordsDay};

window.talentIntegralRecordsIntegral = ${talentIntegralRecordsIntegral};

});</script>

引用的JS文件 开始就获得了两个数组的值

$(function() {    var signFun = function() {        

var dateArray = window.talentIntegralRecordsDay;// 假设已经签到的

var talentIntegralRecordsIntegral = window.talentIntegralRecordsIntegral;        var $dateBox = $("#js-qian-list"),

$currentDate = $(".current-date"),

$qianBnt = $("#js-just-qian"),

_html = '',

_handle = true,

myDate = new Date();

$currentDate.text(myDate.getFullYear() + '年' + parseInt(myDate.getMonth() + 1) + '月' + myDate.getDate() + '日');        var monthFirst = new Date(myDate.getFullYear(), parseInt(myDate.getMonth()), 1).getDay();        var d = new Date(myDate.getFullYear(), parseInt(myDate.getMonth() + 1), 0);        var totalDay = d.getDate(); //获取当前月的天数

for (var i = 0; i < 42; i++) {

_html += ' <li><div class="qian-icon"></div></li>'

}

$dateBox.html(_html) //生成日历网格

var $dateLi = $dateBox.find("li");        for (var i = 0; i < totalDay; i++) {

$dateLi.eq(i + monthFirst).addClass("date" + parseInt(i + 1));            for (var j = 0; j < dateArray.length; j++) {                if (i == dateArray[j]) {

$dateLi.eq(i).addClass("qian");                    var integral;                    if(talentIntegralRecordsIntegral[j]==0){

integral="大转盘";

}else{

integral="+"+talentIntegralRecordsIntegral[j];

}

$dateLi.eq(i).find("div").text(integral);

}

}

} //生成当月的日历且含已签到

$(".date" + myDate.getDate()).addClass('able-qian');

$dateBox.on("click", "li", function() {                if ($(this).hasClass('able-qian') && _handle) {

$(this).addClass('qian');

qianFun();

}

热心网友 时间：2022-04-29 16:38

追答跟踪一下源码，应该能从request或者session取出，el不挺好用的嘛