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Scaarf 2017-05-16
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看的头晕。。。。。
勿念先生 2017-05-16
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好吧，自己解决了。。。。。
勿念先生 2017-05-15
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二楼是问题，我意思是是这样一个结构list要怎么实现去掉最外层的？
xingyuner2 2017-05-15
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你这个只实现了List<Map<String, List<Map<String, Object>>>>，并没有去掉去掉最外层的list。
勿念先生 2017-05-15
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那个帖子发出来一直报null，帖子发布了，一楼就是问题求大神回复
勿念先生 2017-05-15
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public class Test4 {
public static void main(String[] args){
/*
* 初始的数据结构List<Map<String, List<Map<String, Object>>>>
* 目的：将list里面的list中的每个map每个字段一一对应的相加变成这样的数据结构：Map<String, List<Map<String, Object>>>
* 去掉最外层的list
* 例如:
* [
* {resultList=[{number3=3, number2=2, number1=1}, {number3=6, number2=5, number1=4}, {number3=9, number2=8, number1=7}]},
* {resultList=[{number3=3, number2=2, number1=1}, {number3=6, number2=5, number1=4}, {number3=9, number2=8, number1=7}]},
* {resultList=[{number3=3, number2=2, number1=1}, {number3=6, number2=5, number1=4}, {number3=9, number2=8, number1=7}]}
* ]
* 变成
* {resultList=[{number3=9, number2=8, number1=3}, {number3=18, number2=15, number1=12}, {number3=27, number2=24, number1=21}]}
*
*/
List<Map<String, Object>> list1 = new ArrayList<Map<String, Object>>();
Map<String, Object> map1 = new HashMap<String, Object>();
Map<String, Object> map2 = new HashMap<String, Object>();
Map<String, Object> map3 = new HashMap<String, Object>();
List<Map<String, Object>> paramList1 = new ArrayList<Map<String, Object>>();
Map<String, Object> paramMap1 = new HashMap<String, Object>();
paramMap1.put("number1", 1);
paramMap1.put("number2", 2);
paramMap1.put("number3", 3);
Map<String, Object> paramMap2 = new HashMap<String, Object>();
paramMap2.put("number1", 4);
paramMap2.put("number2", 5);
paramMap2.put("number3", 6);
Map<String, Object> paramMap3 = new HashMap<String, Object>();
paramMap3.put("number1", 7);
paramMap3.put("number2", 8);
paramMap3.put("number3", 9);
paramList1.add(paramMap1);
paramList1.add(paramMap2);
paramList1.add(paramMap3);
map1.put("resultList", paramList1);
map2.put("resultList", paramList1);
map3.put("resultList", paramList1);
list1.add(map1);
list1.add(map2);
list1.add(map3);
System.out.println(list1.toString());
}
}
