3级联
//引入js文件
<script
src="<%=request.getContextPath()%>/js/getchildren.js"type="text/javascript"charset="utf-8"></script>
ACTION
@SuppressWarnings("unchecked")
publicActionForwardgetProductNodeByAjax(ActionMappingmapping,
ActionFormform,HttpServletRequestaRequest,
HttpServletResponseaResponse)throwsException
{
//设置返回的编码
aResponse.setContentType("text/json;charset=UTF-8");
//得到session
HttpSessionsession=aRequest.getSession();
//得到语种
Stringnls=(String)session.getAttribute(SupportConstants.CFG_NLS);
//查询接口
DDServicedDService=DDFactory.getInstance().getCommonDD();
//取得查询条件
StringproductLine=aRequest.getParameter("productLine");
StringproductFamily=aRequest.getParameter("productFamily");
PrintWriterout=null;
//webservice调用后的json对象
JSONArrayjsonArray=newJSONArray();
try{
if(null!=productLine
&&!"".equals(productLine.trim())
&&(null==productFamily||"".equals(productFamily.trim())))
{
//级联出产品族
ArrayListdList_family=
dDService.getItemsListByName("PRODUCT_FAMILY",productLine,nls);
jsonArray=com.huawei.it.support.poapply.actions.JsonUtil.listToJSONArray(dList_family);
}elseif(null!=productLine&&!"".equals(productLine.trim())
&&null!=productFamily
&&!"".equals(productFamily.trim())){
//级联出产品
ArrayListdList_product=
dDService.getItemsListByName("PRODUCT",productFamily,nls);
jsonArray=com.huawei.it.support.poapply.actions.JsonUtil.listToJSONArray(dList_product);
}
out=aResponse.getWriter();
out.print(jsonArray);
out.flush();
}catch(Exceptione)
{
e.printStackTrace();
throwe;
}finally{
if(null!=out){
out.close();
}
}
returnnull;
}