ajax

ajax后台的集中处理方法:

jquery方法:

function doDel(){
	  $.ajax({
		   type: "POST",            
		   url: "<%=root%>/transfer_doDeleBankInfo,
				success : function(data) {//将数据写入页面
					alert(data);
				}
			});
}

方法一:

public String doDeleBankInfo(){//ajax
		HttpServletResponse res = ServletActionContext.getResponse();
		res.reset();
		res.setContentType("text/html;charset=utf-8");
		PrintWriter pw;
		try {
			pw = res.getWriter();
			int num=;//处理逻辑
			String json = JSONArray.fromObject(num).toString();//返回值
			pw.print(json);
			pw.flush();
			pw.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return null;
	}

方法二:

public String doJudge(){
		JSONObject json = new JSONObject();
		String card=tWealTransferService.doJudge(cardNo);
		if(null==card||"".equals(card)){
			json.put("flag",1);
		}else{
			json.put("flag",2);
		}
		ResponseHandler.resWithJson(ServletActionContext.getResponse(),
				json.toString());
		return null;
	}

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