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if(provincenameValue!=""){
$.post("ChainSelect",{keyword:provincenameValue,type:"top"},function(data){if(data.length!=0){
for(var i=0;i<data.length;i++){
$("<option value='"+data[i]+"'>"+"</option>").appendTo(citySelect);
}
ChainSelect Servlet代码是这样写的:JSONArray data = new JSONArray();
JSONObject member = null;
String type=request.getParameter("type");
String provincenameValue=request.getParameter("keyword");
if(type=="top"){
if(provincenameValue=="湖南"){
member=JSONObject.fromObject("常德");
data.add(member);
member=null;
member=JSONObject.fromObject("长沙");
}
PrintWriter pw = response.getWriter();
pw.print(data.toString());
pw.close();
不晓得是哪里错了,硬是没有效果,希望各位楼主,赐教!