/**
* 根據(jù)品牌id動態(tài)加載標的物
* @return
* @throws DataBaseException
* @throws IOException
*/
public String loadModel() throws DataBaseException, IOException{
HttpServletRequest request=ServletActionContext.getRequest();
HttpServletResponse response=ServletActionContext.getResponse();

response.setContentType("application/x-javascript;charset=UTF-8");
PrintWriter out = response.getWriter();

String brandId = request.getParameter("brandId");
List phones = this.phoneService.queryMobilByBrandId(Integer.parseInt(brandId));
if(phones!=null&&phones.size()>0){
//把集合對象轉(zhuǎn)換為json對象
JSONArray json=JSONArray.fromObject(phones);
out.println(json.toString());
out.close();
}else{
out.println("[{id:0,model:'請選擇'}]");
out.close();
}
return SUCCESS;
}

????????????

???

?????????????

function loadPhone(value){
alert(value);
$.ajax({
type: "post",
url: "supply!loadPhone.do",
data: ({brandId: value}),
success: function(data){
var objs=eval("("+data+")");
var $phone=$("#phone");
$phone.empty();
//$phone.append("<option value='0'>..請選擇..</option>");
for(var i=0;i<objs.length;i++){
$phone.append("<option value='"+objs[i].id+"'>"+objs[i].model+"</option>");
}
}
});
}

????????

???

<select id="brand" name="brandId" onchange="loadPhone(this.options[this.options.selectedIndex].value)">

轉(zhuǎn)載于:https://www.cnblogs.com/linjiqin/archive/2011/08/16/2140361.html

超強干貨來襲 云風專訪：近40年碼齡，通宵達旦的技術人生

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