springMVC中ajax的实现

function addDebtResult(){
var repayIds=$("#repayIds").val();
var lateFeeDay=$("#repayIds1").val();
var subAdminId1=$("#subAdminId1").val();
if(subAdminId1==null||subAdminId1==""){
alert("未选择催收人员！");
return;
}

$('#bt_flash').attr('data-dismiss', 'modal');

$.ajax({
type: "post",
timeout: 30000,
async: false,
cache: false,
data:{
"repayIds":repayIds,
"lateFeeDay":lateFeeDay,
"subAdminId":subAdminId1,
},
url: "${ctx}/postLoanManageController/addTaskAllocat",
success: function(data){
if(data==1){

location.reload();
alert("添加成功！");

}else if(data==3){
alert("请登录！");
window.location.href="${ctx}/admin";
}else{
alert("添加失败");
}

}

});
}

//催收管理：任务分配-添加分配记录
@ResponseBody
@RequestMapping(value="/addTaskAllocat",produces="application/json;charset=UTF-8")
public int addTaskAllocat(String repayIds,String lateFeeDay, String subAdminId,HttpServletRequest request){
logBefore(logger,"催收管理：任务分配-添加分配记录");
Admin admin=getCurrentAdmin(request);
if(admin==null){
return 0;
}
int flag = postLoanManageService.addTaskAllocat( repayIds, lateFeeDay, subAdminId,admin);
logAfter(logger);
return flag;
}

List<Province> province= loginService.getProvinceByAreaId(areaId);

返回List对象：JSONArray provinceJson=JSONArray.fromObject(province);

返回对象： JSONObject userJson=JSONObject.fromObject(resultInfo);