js+ajax processes the json object returned by the java background to create a table in a loop

This article mainly introduces the method of js ajax processing the json object returned by the java background to create a table in a loop, involving the javascript operation of the json object to dynamically create the table and the related skills of interacting with the background based on ajax. Friends who need it can refer to it

The example of this article describes the method of js ajax processing the json object returned by the java background to create a table in a loop. Share it with everyone for your reference, the details are as follows:

//注：LO是表格的id； 需要自己创建表头， n行，9列的表格；
var tab_id;
function varify(cardinno) {
tab_id=document.getElementById("Layer1");
displayp();
tab_id.style.display="none";
var url="getRefInfoServlet?cardInNo="+cardinno;
var myAjax=new Ajax.Request(url,{method:'post', parameters:'0', onSuccess:doOnComplete, asynchronous:true});
}
var doOnComplete=function(xml_httpRequest){
var msg=eval(xml_httpRequest.responseText);
var info=msg.length;
var row;
var col;
if(info>0)
{
for(var i=0;i<info;i++){
row = L0.insertRow(L0.rows.length);
row.insertCell(0).innerHTML =" "+msg[i].a;
row.insertCell(1).innerHTML =" "+msg[i].b;
row.insertCell(2).innerHTML =" "+msg[i].c;
row.insertCell(3).innerHTML =" "+msg[i].d;
row.insertCell(4).innerHTML =" "+msg[i].e;
row.insertCell(5).innerHTML =" "+msg[i].f;
row.insertCell(6).innerHTML =" "+msg[i].g;
row.insertCell(7).innerHTML =" "+msg[i].h;
row.insertCell(8).innerHTML =" "+msg[i].i;
row.setAttribute("align", "center");
}
tab_id.style.display="block";
}else{
tab_id.innerHTML="<center>抱歉，该卡未开通，获取不到租还车信息！</center>";
tab_id.style.width = "80%";
  tab_id.style.position = "absolute";//绝对位置显示
tab_id.style.display="block";
}
removep();
}
//遮罩层显示
displayp=function()
{
  var mybg = document.createElement("p");
  mybg.setAttribute("id","mybg");
  mybg.innerHTML="<center>正在处理中, 请稍候<img src=&#39;lib/images/loading.gif&#39;></img></center>";
  mybg.style.width = "100%";
  mybg.style.position = "absolute";//绝对位置显示
  mybg.style.top = "260";
  mybg.style.left = "0";
  mybg.style.zIndex = "100";//z轴位置
  mybg.style.opacity = "0.8";//透明度
  mybg.style.filter = "Alpha(opacity=80)";//滤镜显示透明度
  document.body.appendChild(mybg);
}
//遮罩层移除
removep=function()
{
document.body.removeChild(mybg);
}

Java background storage json object:

/**
* 根据卡内码得到最近的租还车记录
* 返回json对象
* @param cardInNo
* @return
*/
public String getRefInfo(String cardInNo)
{
StringBuffer bf=new StringBuffer(1024);
bf.append("");//sql语句
System.out.println(bf.toString());
/************ 存储json对象***************/
List<JSONObject> jsonList=new ArrayList<JSONObject>();
    try {
    /****************获得判断信息存入数组中*******************/
    String [][] str=getArrayByName(bf.toString());
    if(str!=null){
    for (int i = 0; i < str[0].length; i++) {
    JSONObject returnValue =new JSONObject();
    returnValue.put("a", str[0][i])
    .put("b", str[1][i])
    .put("c", str[2][i].trim().equals("")?"":str[2][i].substring(0, 19))
    .put("d", str[3][i].trim().equals("")?"":str[3][i].substring(0, 19))
    .put("e", str[4][i])
    .put("f", str[5][i])
    .put("g", str[6][i])
    .put("h", str[7][i])
    .put("i", str[8][i]);
    jsonList.add(returnValue);
    }
  }
}catch (Exception e) {
e.printStackTrace();
}
System.out.println(jsonList.toString());
return jsonList.toString();
}

The above is what I compiled for everyone, I hope it will be helpful to everyone in the future.

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