以下是試用報告點贊功能，相同IP1小時內只能點贊一次，每點贊一次點贊數加1，運用ajax方法呼叫介面

HTML:

<span style="font-size:18px;"><span style="font-size:18px;"> <i class="report-icons like-btn">贊：<span class="font-green" id="likeNum">${report.likeCount}</span> <i class="plus">+1</i></i></span></span>
 

javaScript:

<span style="font-size:18px;"><span style="font-size:18px;">//點贊
    $(".like-btn").bind({
        click:function(){
            vote_like();
            $(this).attr("rel",1);
        }
    });

    function vote_like(){
        $.ajax({
            url: "${ROOT}/action/report_like.jsp",
            type: "POST",
            dataType: "json",
            data: {reportId: "${report.reportId}"},
            success: function (json) {
                if (json.status == 1) {
                    var topele=$("#likeNum"),topcurrent = parseInt(topele.text());
                    $(".plus").show(0).stop(true).animate({"top":-18,opacity:0},500,function(){topele.text(topcurrent + 1);});
                } else {
                    alert(json.msg);
                }
            }
        });
    }
</span></span>
 

介面：report_like.jsp

<span style="font-size:18px;"><span style="font-size:18px;"><%@page import="cn.cache.CacheClient"%>
<%@ include file="/common/common_check_login.jsp"%>
<%@ page import="com.alibaba.fastjson.JSONArray"%>
<%@ page import="com.alibaba.fastjson.JSONObject"%>
<%
	long reportId = T.intValue(request.getParameter("reportId"), 0);
	String callback = T.toInput(T.stringValue(request.getParameter("callback"), ""));
	request.setAttribute("callback", callback);
	String method = request.getMethod();
	JSONObject json = new JSONObject();
	if (!method.equalsIgnoreCase("post")) {
		json.put("status", 0);
		json.put("msg", "請用post請求");
	} else {
		if (reportId < 0) {
			json.put("status", 0);
			json.put("msg", "試用報告不存在");
		} else {
			ReportService reportService = ReportService.instance();
			Report report = reportService.find(reportId);
			if (report != null) {
				if (report.getStatus() != ReportEnum.REPORT_NORMAL.getReport()) {
					json.put("status", 0);
					json.put("msg", "不能對未稽核的試用報告點贊。");
				} else {
					String ip = IpUtils.getIp(request);
					int ipAsking = 0;
					String mcKey = "report_like_accountId_" + accountId+ "_reportId_" + reportId + ip;
					CacheClient cacheClient = EnvUtils.getEnv().getBean(CacheClient.class);
					try {
						ipAsking = (Integer) cacheClient.get(mcKey);
					} catch (Exception e) {
						//ignored.
					}
					if (ipAsking == 0) {
						report.setLikeCount(report.getLikeCount() + 1);
						reportService.update(report);
						cacheClient.set(mcKey, 1, T.addHour(T.getNow(), 1));
						json.put("status", 1);
						json.put("count", report.getLikeCount() + "");
						json.put("msg", "點贊一下");
					} else {
						json.put("status", 0);
						json.put("msg", "相同IP一小時內只能點贊一次");
					}
				}
			} else {
				json.put("status", 0);
				json.put("msg", "試用報告不存在");
			}
		}
	}
	if (!T.isBlank(callback)) {
		request.setAttribute("jsonString",
				callback + "(" + json.toJSONString() + ");");
	} else {
		request.setAttribute("jsonString", json.toJSONString());
	}
%>${jsonString}
</span></span>