簡體   English   中英

處理Ajax和Java Servlet之間的請求和響應

[英]Handle request and response between ajax and java servlet

我正在嘗試處理ajax和servlet之間的請求/響應:用戶單擊Google地圖標記,然后通過ajax使用其ID調用相對於標記的注釋。

這應該是Ajax代碼

 function infoCallback(infowindow, marker) {
    return function() {
        $.ajax({
            type: 'POST',
            url: 'commentListener',
            data: {
                id: marker.id,
                comment:$('#comment').val()
            },
            success:function(data){
                var comment = $('#output').html(data);
                infowindow.setContent(comment);
                infowindow.open(map, marker);
            }
        });
    };
}

這應該是Servlet代碼

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    long id = Long.parseLong(request.getParameter("id"));
    String comment = //comment relative to the id
    /*Way to send the comment to the infowindow*/
    response.getWriter().write("{comment:"+comment+"}");
}

對不起,如果還不清楚的話!

(由OP在問題編輯中回答。轉換為社區Wiki答案。請參閱無答案的問題,但問題已在評論中解決(或擴展為聊天)

OP寫道:

解決了

使用PrintWriter

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    long id = Long.parseLong(request.getParameter("id"));
    String comment = //get comment by id
    try {  
        PrintWriter out;
        out = response.getWriter();  
        out.print(comment);
    } catch (IOException e) {  
        e.printStackTrace();  
    }
}

這是阿賈克斯

function infoCallback(infowindow, marker) {
    return function() {
        $.ajax({
            type: 'POST',
            url: 'commentListener',
            data: {
                id: marker.id,
            },
            success:function(result){
                infowindow.setContent(result);
                infowindow.open(map, marker);
            }
        });
    };
}

暫無
暫無

聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.

 
粵ICP備18138465號  © 2020-2024 STACKOOM.COM