自己写个jsonp例子

服务器端代码：

/**
	 * 返回jsonp测试
	 * @return
	 * @throws Exception
	 */
	public View getJson() throws Exception {
		
		String action = StringUtil.dealParam(request.getParameter("callback"));
		
		Map<String, Object> data = new HashMap<String, Object>();
		
		if (action.equals("getUserinfo")) {
			data.put("name", "zheng");
			data.put("sex", "1");
			data.put("phone", "13987654321");
		}
		
		return new TextView(action + "(" + new JsonView(data) + ")");
	}

前段js代码：

$(function() {
		var url = "http://192.168.1.23:8888/ad/getJson";
		$.ajax({
			dataType: "jsonp", 
			jsonp:"callback",
			jsonpCallback : "getUserinfo",
			url: url,
			success: function (json) {
				alert(json.name);
			},
			error: function (xhr, status, ex) {
				
			}
		});
	});