function getMiaoshaPath(){
$.ajax({
url: '/miaosha/generate_path', // 调用后台接口获取秒杀接口的入口地址
type: "GET",
data: {//post提交表单的时候，url参数可以放在data中
goodsId: $("#goodsId").val()
},
success:function(data){
if(data.code == 0){
doMiaosha(data.data);//相当于是产生的uuid（ 获取到的秒杀接口的入口地址）
}else{
}
},
error:function(){
layer.msg("客户端请求有误");
}
});
}
function doMiaosha(uuidPath){//秒杀的时候，需要向服务端传递参数
$.ajax({
url: "/miaosha/" + uuidPath + "/do_miaosha", //进行秒杀
type: "POST",
data: {//post提交表单的时候，url参数可以放在data中
goodsId: $("#goodsId").val()
},
success:function(data){//成功的时候会有一个回调，data是返回的数据，该数据应该是一个对象类型，或字典类型
if(data.code == 0){
/* render(data.data);//这里需要一个渲染页面的函数 render */
//window.location.href="/order_detail.htm?orderId=" + data.data.id;
getMiaoshaResult($("#goodsId").val());
}else{
layer.msg(data.msg);
}
},
error:function(){
layer.msg("客户端请求有误");
}});
}
后台接口：
@RequestMapping(value="/generate_path", method=RequestMethod.GET)
@ResponseBody
public Result<String> generate_path(MiaoshaUser user, @RequestParam("goodsId")long goodsId) {if(user == null){
return Result.error(CodeMsg.SESSION_ERROR);
}
String genPath = miaoshaService. createPath(user, goodsId);//产生并存入到redis数据库中
return Result.success(genPath);
}
@RequestMapping(value="/{uuidPath}/do_miaosha", method=RequestMethod.POST)
@ResponseBody
public Result<Integer> miaosha(MiaoshaUser user, @RequestParam("goodsId")long goodsId,@PathVariable("uuidPath")String path) {
//RequestParam可以把保单隐含提交的input标签对应name属性的元素取出
if(user == null){
return Result.error(CodeMsg.SESSION_ERROR);
}
boolean pass = miaoshaService.verifyPath(user, goodsId, path);
if(!pass){
return Result.error(CodeMsg.REQUEST_ILLEGAL);
}
//判断内存标记
boolean over = isOverMap.get(goodsId);
if(over){
return Result.error(CodeMsg.MIAO_SHA_OVER);
}
MiaoshaService：
public String createPath(MiaoshaUser user, long goodsId) {
String str = MD5Util.md5(UUIDUtil.uuid() + "123456");
redisService.set(MiaoshaKey.getMiaoshaPath, "" + user.getId() + "_" + goodsId, str);
return str;
}
public boolean verifyPath(MiaoshaUser user, long goodsId, String path) {
if(user == null || path == null){
return false;
}
String uuidRedisPath = redisService.get(MiaoshaKey.getMiaoshaPath, "" + user.getId() + "_" + goodsId, String.class);
if(uuidRedisPath.equals(path)){
return true;
}
return false;
}