<div class="row">
                    <div class="col-md-3">
                        <div class="form-group">
                            <label class="control-label">分支机构所在省</label>
                            <div class="controls">
                                <%--     <s:select name="branchProvince" list="regionProvinceMap" requiredLabel="true" /> --%>
                                <s:textfield name="masterBranch.branchProvince"
                                    requiredLabel="true" />
                            </div>
                        </div>
                    </div>
                    <div class="col-md-3">
                        <div class="form-group">
                            <label class="control-label">所在市</label>
                            <div class="controls">
                                <s:textfield name="masterBranch.branchCity" requiredLabel="true" />
                            </div>
                        </div>
                    </div>

                    <div class="col-md-3">
                        <div class="form-group">
                            <label class="control-label">所在区县</label>
                            <div class="controls">
                                <s:textfield name="masterBranch.branchCounty"
                                    requiredLabel="true" />
                            </div>
                        </div>
                    </div>

                    <div class="col-md-3">
                        <div class="form-group">
                            <label class="control-label">详细地址</label>
                            <div class="controls">
                                <s:textfield name="masterBranch.branchAddres"
                                    requiredLabel="true" />
                            </div>
                        </div>
                    </div>
                </div>





var $branchProvince = $form
                                    .find("input[name='masterBranch.branchProvince']");
                            var $branchCity = $form
                                    .find("input[name='masterBranch.branchCity']");
                            var $branchCounty = $form
                                    .find("input[name='masterBranch.branchCounty']");

                            $branchProvince
                                    .select2({
                                        placeholder : "选择所在省",
                                        allowClear : true,
                                        minimumInputLength : 0,
                                        multiple : false,
                                        ajax : {
                                            url : WEB_ROOT
                                                    + "/sys/data-dict!findByPrimaryKey.json?primaryKey=ADMINISTRATIVE_REGION_CN",
                                            dataType : 'json',
                                            data : function(term, page) {
                                                return {
                                                    q : term
                                                };
                                            },
                                            results : function(data, page) {
                                                var rst = [];
                                                // 修改成合适的数据格式 [{id:text}]
                                                $.each(data, function(i, n) {
                                                    rst.push({
                                                        id : i,
                                                        text : n
                                                    });
                                                });
                                                return {
                                                    results : rst
                                                };
                                            }
                                        }
                                    });

                            $branchCity
                                    .select2({
                                        placeholder : "选择城市",
                                        allowClear : true,
                                        minimumInputLength : 0,
                                        multiple : false,
                                        ajax : {
                                            url : function() {
                                                var val = $branchProvince
                                                        .select2("val");
                                                if (val == '') {
                                                    return '#';
                                                }
                                                return WEB_ROOT
                                                        + "/sys/data-dict!findByPrimaryKey.json?primaryKey="
                                                        + val;
                                            },
                                            dataType : 'json',
                                            data : function(term, page) {
                                                return {
                                                    q : term
                                                };
                                            },
                                            results : function(data, page) {
                                                var rst = [];
                                                // 修改成合适的数据格式 [{id:text}]
                                                $.each(data, function(i, n) {
                                                    rst.push({
                                                        id : i,
                                                        text : n
                                                    });
                                                });
                                                return {
                                                    results : rst
                                                };
                                            }
                                        }
                                    });

                            $branchCounty
                                    .select2({
                                        placeholder : "选择区县",
                                        allowClear : true,
                                        minimumInputLength : 0,
                                        multiple : false,
                                        ajax : {
                                            url : function() {
                                                var val = $branchCity
                                                        .select2("val");
                                                if (val == '') {
                                                    return '#';
                                                }
                                                return WEB_ROOT
                                                        + "/sys/data-dict!findByPrimaryKey.json?primaryKey="
                                                        + val;
                                            },
                                            dataType : 'json',
                                            data : function(term, page) {
                                                return {
                                                    q : term
                                                };
                                            },
                                            results : function(data, page) {
                                                var rst = [];
                                                // 修改成合适的数据格式 [{id:text}]
                                                $.each(data, function(i, n) {
                                                    rst.push({
                                                        id : i,
                                                        text : n
                                                    });
                                                });
                                                return {
                                                    results : rst
                                                };
                                            }
                                        }
                                    });

                            $branchProvince.on("change", function(e) {
                                // alert("change "+JSON.stringify({val:e.val,
                                // added:e.added, removed:e.removed}));
                                $branchCity.select2('val', '');
                                $branchCounty.select2('val', '');
                            }).on("select2-removed", function(e) {
                                // alert("change "+JSON.stringify({val:e.val,
                                // added:e.added, removed:e.removed}));
                                $branchCity.select2('val', '');
                                $branchCounty.select2('val', '');
                            });

                            $branchCity.on("change", function(e) {
                                // alert("change "+JSON.stringify({val:e.val,
                                // added:e.added, removed:e.removed}));
                                $branchCounty.select2('val', '');
                            }).on("select2-removed", function(e) {
                                // alert("change "+JSON.stringify({val:e.val,
                                // added:e.added, removed:e.removed}));
                                $branchCounty.select2('val', '');
                            });

                        }
                    });

待续