javascript - 如何使用 Ajax 将数组值从 Javascript 格式化为 Java Servlet

Question

我需要你的帮助。

我使用 AJAX 将这个数组从 Javascript 传递到 Java Servlet。

Javascript 和 AJAX 片段代码:

var BuildingNo = [];

$(xml).find('BUILDING').each(function(){
    BuildingNo.push($.trim(this).children('BuildingNo').text());
}

传递给 Java Servlet 之前的 BuildingNo 值。

alert(BuildingNo);
// 00101,00102,00103,00104,00105 

当我通过 Ajax 将 BuildingNo 传递给 Java Servlet 时，JSON.stringify(BuildingNo) 的值。

data: { BuildingNo : JSON.stringify(BuildingNo) },

alert(JSON.stringify(BuildingNo));
// ["00101","00102","00103","00104","00105"] 

这是我用来将 BuildingNo 传递到 oldBuilding 列表的 Java Servlet 片段代码。

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws (ServletException, IOException {

List <String> oldBuildingList = Arrays.asList(request.getParameter("BuildingNo");

logger.info(oldBuildingList);

// [["00101","00102","00103","00104","00105"]] -- This is a wrong format.

//I have a Java code here which captures a new list of BuildingNo from another service.

List <String> newBuildingList = new ArrayList <String>();
logger.info(newBuildingList.toString());

// [00106,00107,00108,00109,00110] -- This should be the correct format of oldBuildingList.

}

如何使用 oldBuildingList 获得相同格式的 newBuildingList？

Answer 1

不要字符串化，只是保留为 data: { BuildingNo : BuildingNo }

以及在 Java Servlet 中 List <String> oldBuildingList = Arrays.asList(request.getParameterValues("BuildingNo[]");