我有这么一个json字符串通过fastjson的parse方法接的
我有什么办法遍历他们并且我要用对应的每个(edyear-bgyear)*money
然后累加
{"bgyear1":"2019","edyear2":"2019","edyear3":"2019","edyear1":"2019","Money3":"33333","Money1":"11111","Money2":"2222","bgyear2":"2019","bgyear3":"2019"}
我有这么一个json字符串通过fastjson的parse方法接的
我有什么办法遍历他们并且我要用对应的每个(edyear-bgyear)*money
然后累加
{"bgyear1":"2019","edyear2":"2019","edyear3":"2019","edyear1":"2019","Money3":"33333","Money1":"11111","Money2":"2222","bgyear2":"2019","bgyear3":"2019"}
如上图,代码如下
//1、定义json数据
String json="{\"bgyear1\":\"2019\",\"edyear2\":\"2019\",\"edyear3\":\"2019\",\"edyear1\":\"2019\",\"Money3\":\"33333\",\"Money1\":\"11111\",\"Money2\":\"2222\",\"bgyear2\":\"2019\",\"bgyear3\":\"2019\"}";
//2、解析
JSONObject jsonObject= JSONObject.parseObject(json);
Map<String,Integer> resMap=new HashMap<>();
//3、从1开始,依次循环取出json中字段
for(int i=1;;i++){
Integer edyear = jsonObject.getInteger("edyear"+i);
Integer bgyear = jsonObject.getInteger("bgyear"+i);
Integer money = jsonObject.getInteger("Money"+i);
//3.1、如果任一字段为null,则打断循环
if(edyear==null||bgyear==null||money==null){
break;
}
//3.2、添加结果
resMap.put("res"+i,(edyear-bgyear)*money);
}
//4、打印结果(注意此处使用的是jdk1.8语法lambda表达式)
resMap.forEach((k,v)->{
System.out.println(k+":"+v);
});