How to traverse the java array passed to jsp

How to pass the java array to jsp to implement traversal: first use Jquery's Ajax to interact with the data; then take out the Java array data and use [$.each()] or for loop to traverse; finally put the data into Just display the specified location in the JSP page.

#When I was working on a small project today, I encountered the problem of traversing the list array transmitted from the background. Since I have never done this before, I just found it online. After checking,

Here we use Jquery to traverse the array, because Jquery is simpler than js writing.

Recommended course: Java Tutorial.

made the following summary:

1. The data format transmitted from the background is as follows:

 [{"askId":7,"timestart":"2017/05/11","timeend":"2017/05/14","askType":"事假","studentPhone":"18131371836","askReason":"哈哈哈","yearClass":"###","studentName":"####"}]

2 There are two main ways to traverse an array in jqury

The first way to traverse an array and display it to the front page is:

$(document).ready(function(){
        $.ajax({
            url:'headTeacherCheckStudentAsk.html?wechat=weixin',
            ansyc:'false',
            type:'Post',
            dataType:'json',
            success:function(data){
                  alert(data);
                 //注意：当data是json字符串时，需要将data转化成json对象
                 for(var i=0;i<data.length;i++){
                     //访问每一个的属性，根据属性拿到值
                        alert(data[i].studentName);
                         //将拿到的值显示到jsp页面
                        $('#studentName').val(data[i].studentName);
                    }
            }, error: function (data) {
                alert("error:" + JSON.stringify(data));
            }
        });

The second method of traversing the array and displaying it on the front page is:

$(document).ready(function(){
        $.ajax({
            url:'headTeacherCheckStudentAsk.html?wechat=weixin',
            ansyc:'false',
            type:'Post',
           /*  data:StudentWechatAsk, */
            dataType:'json',
            success:function(data){
                alert(data);
                 //注意：当data是json字符串时，需要将data转化成json对象
                   $.each(data, function (i, item) {
                       //访问每一个的属性，根据属性拿到值
                        alert(item.studentName);
                        //将拿到的值显示到jsp页面
                        $('#studentName').val(item.studentName);
                    });

            }, error: function (data) {
                alert("error:" + JSON.stringify(data));
            }
        });

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