json字符串转list+map
List<HashMap<String,Object>> list = new org.codehaus.jackson.map.ObjectMapper().readValue("[{"cpu":"2核","machineName":"r5.large","memory":"16G","price":35.040008544921875}]", ArrayList.class);
System.out.println(list.get(0).get("machineName")+"");
或者：JSON.parseArray(JSON.toJSONString(map.get("serverNameFilters")), String.class);
你得有更强的学历和技术，才能有这种资本啊，现在基本都得1-3年的吧，你这就三个月实习了，而且写的这么模糊
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