我有一个对象数组

[
  {
    id: '1109',
    year: 2022,
    amount: 558270
  },
  {
    id: '1109',
    year: 2022,
    amount: 22842680
  },
  {
    id: '1109',
    year: 2021,
    amount: 32342
  },
  {
    id: '1109',
    year: 2020,
    amount: 323111
  }
],
[
  {
    id: '197',
    year: 2019,
    amount: 9000
  },
  {
    id: '197',
    year: 2023,
    amount: 3000
  },
  {
    id: '197',
    year: 2019,
    amount: 2000
  },
  {
    id: '197',
    year: 2020,
    amount: 1000
  }
]

字符串
我尝试做的是添加相同year的amount，并将它们添加到新的year中。
我现在做的哪些是

def newVal = [:]
def arr = []
for(int ii=0 ; ii< arr.size(); ii++){
          for(int jj=1 ; jj < arr.size(); jj++){
              if(arr[ii].year == arr[jj].year){
                  newVal.put("id", arr[i].id)
                  newVal.put("year", arr[ii].year)
                  newVal.put("amount", arr[ii].amount + arr[jj].amount)
                  arr.add(newVal)
              }
          }
      }

型
这是我的输出

[
  { id: '1109', year: 2022, amount: 23400950 },
  { id: '1109', year: 2022, amount: 45685360 },
  { id: '1109', year: 2021, amount: 64684 },
  { id: '1109', year: 2020, amount: 646222 }
]
[
  { id: '197', year: 2019, amount: 11000 },
  { id: '197', year: 2023, amount: 6000 },
  { id: '197', year: 2019, amount: 4000 },
  { id: '197', year: 2020, amount: 2000 }
]

型
期望输出

[
  {
    id: '1109',
    year: 2022,
    amount: 23400950
  },
  {
    id: '1109',
    year: 2021,
    amount: 32342
  },
  {
    id: '1109',
    year: 2020,
    amount: 323111
  }
],
[
  {
    id: '197',
    year: 2019,
    amount: 11000
  },
  {
    id: '197',
    year: 2023,
    amount: 3000
  },
  {
    id: '197',
    year: 2020,
    amount: 1000
  }
]

型