html+js
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous"/>
<script src="https://cdn.bootcss.com/jquery/1.12.4/jquery.min.js"></script>
<script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
</head> <body>
<div class="jumbotron">
<div class="container">
<div class="form-group" id="mychart1-dq">
<label for="" class="col-sm-2 control-label">省份名称：</label>
<div class="col-sm-2" style="padding-bottom: 5px;">
<select class="form-control" name="PROVINCE_ID" id="PROVINCE_ID">
<option value=''>请选择...</option>
</select>
</div>
<label for="" class="col-sm-2 control-label">县市名称：</label>
<div class="col-sm-2" style="padding-bottom: 5px;">
<select class="form-control" name="PREFECTURE_ID" id="PREFECTURE_ID">
<option value=''>请选择...</option>
</select>
</div>
<label for="" class="col-sm-2 control-label">乡村名称：</label>
<div class="col-sm-2" style="padding-bottom: 5px;">
<select class="form-control" name="TOWNSHIP_ID" id="TOWNSHIP_ID">
<option value=''>请选择...</option>
</select>
</div>
</div>
</div>
</div>
</body>
</html>
<script type="text/javascript" >
//省市三级联动
$(function(){
$("#dqjz").each(function(){
var url = reqprojectname_w+'infofind/findDq';
var dzJson;
var dz_html="";
var oDzlx = $("#PROVINCE_ID");
var oYkzl = $("#PREFECTURE_ID");
var oYkzl2 = $("#TOWNSHIP_ID");
//console.log(dzJson);
var dzlx = function(){
if( typeof(dzJson) == "undefined" || dzJson.length == 0 ){
dz_html+="<option value=''>请选择...</option>";
}else{
$.each(dzJson,function(i,v){
dz_html+="<option value='"+v.k+"' >"+v.n+"</option>";
});
}
oDzlx.html(dz_html);
ykzl();
};
var ykzl = function(){
dz_html = "";
var n = oDzlx.get(0).selectedIndex;
if( typeof(dzJson) == "undefined" || typeof(dzJson[n]) == "undefined" ||typeof(dzJson[n].list) == "undefined" ){
dz_html+="<option value=''>请选择...</option>";
}else{
$.each(dzJson[n].list,function(i,v){
dz_html+="<option value='"+v.k+"'>"+v.n+"</option>";
});
}
oYkzl.html(dz_html);
ykzl2();
};
//赋值县
var ykzl2 = function(){
dz_html = "";
var m = oDzlx.get(0).selectedIndex;
var n = oYkzl.get(0).selectedIndex;
if(typeof(dzJson[m]) == "undefined" || typeof(dzJson[m].list[n]) == "undefined" || typeof(dzJson[m].list[n].list) == "undefined"){
dz_html+="<option value=''>请选择...</option>";
}else{
$.each(dzJson[m].list[n].list,function(i,v){
dz_html+="<option value='"+v.k+"'>"+v.n+"</option>";
});
oYkzl2.html(dz_html);
};
};
oDzlx.change(function(){
ykzl();
});
oYkzl.change(function(){
ykzl2();
});
//获取json数据
$.getJSON(url,function(data){
//地区
dzJson = data.list;
dzlx();
});
}); }); </script>
java接口数据处理
/**
* 加载地区
* @param req
* @param res
*/
@RequestMapping("findDq")
public void findDq(HttpServletRequest req, HttpServletResponse res) {
Map<String,Object> map = new HashMap<String, Object>(); JvmInfo jvm = JvmInfo.getIntence();
List<KeyAndValue> list = jvm.getDqList();
if( list == null || list.isEmpty()){
list = new ArrayList<KeyAndValue>();
//第三级（数据组成自行实现）
List<DqxzmcModel> dqxzListModel = dqxzmcService.findList();
Map<Integer, List<KeyAndValue>> dqxzmap = new HashMap<Integer, List<KeyAndValue>>();
if(dqxzListModel != null && dqxzListModel.size()>0){
for (DqxzmcModel d : dqxzListModel) {
List<KeyAndValue> dzlist = dqxzmap.get(d.getCITY_ID());
if( dzlist == null ){
dzlist = new ArrayList<KeyAndValue>();
dqxzmap.put(d.getCITY_ID(), dzlist);
}
KeyAndValue kv = new KeyAndValue();
kv.setK(d.getIdStr());
kv.setN(d.getTOWN_NAME());
dzlist.add(kv);
}
}
//第二级（数据组成自行实现）
List<DqxsmcModel> dqxsListModel = dqxsmcService.findList();
Map<Integer, List<KeyAndValue>> dqxsmap = new HashMap<Integer, List<KeyAndValue>>();
if(dqxsListModel != null && dqxsListModel.size()>0){
for (DqxsmcModel d : dqxsListModel) {
List<KeyAndValue> dzlist = dqxsmap.get(d.getPROVINCE_ID());
if( dzlist == null ){
dzlist = new ArrayList<KeyAndValue>();
dqxsmap.put(d.getPROVINCE_ID(), dzlist);
}
KeyAndValue kv = new KeyAndValue();
kv.setK(d.getIdStr());
kv.setN(d.getCITY_NAME());
List<KeyAndValue> childList = dqxzmap.get(d.getID());
if( childList != null && childList.size()>0){
kv.addLists(childList);
}
dzlist.add(kv);
}
}
//第一级（数据组成自行实现）
List<DqsfmcModel> dqsfLstModel = dqsfmcService.findList();
if(dqsfLstModel != null && dqsfLstModel.size()>0){
for (DqsfmcModel d : dqsfLstModel) {
KeyAndValue kv = new KeyAndValue();
kv.setK(d.getIdStr());
kv.setN(d.getPROVINCE_NAME());
List<KeyAndValue> childList = dqxsmap.get(d.getID());
if( childList != null && childList.size()>0){
kv.addLists(childList);
}
list.add(kv);
}
} }
map.put("list", list);
CtrlUtils.putJSON(map, res);
}