AJAX 后台返回多种数据

时间:2021-05-20 15:19:53

前台ajax(jsp文件):

(1)

    $.ajax({
type: "POST",
url: "/dragable/demo/finishTopo",
async:true,
data: {json: "testDiv",name:"json"},
dataType: "json",
// dataType: "text",
success: function(data){
alert(data.list + data.total);
},
error: function(e) {
alert(e);
}
});

(2)

$.ajax({
type: "POST",
url: "/dragable/demo/finishTopo",
async:true,
data: {json: "testDiv",name:"json"},
//dataType: "json",
dataType: "text",
success: function(data){
data = data.replace(/'/g, '"');//将所有'替换成"
var jspare = JSON.parse(data);
alert(jspare.root[0].value);
},
error: function(e) {
alert(e);
}
});

后台(java文件):

(1)

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// TODO Auto-generated method stub
PrintWriter out = response.getWriter();
JSONObject json1;
Map<String, Object> map = new HashMap<String, Object>();
map.put("total", 56);
map.put("list", "listjipa");
json1 = JSONObject.fromObject(map); out.print(json1.toString());
out.close();
}

(2)

     StringBuilder str = new StringBuilder();
str.append("{'root':[{'name':6101,'value':'北京市'}, {'name':6201,'value':'福州市'},{'name':6102,'value':'天津市'}]}"); out.print(str.toString());
out.close();