Question

我想使用Jolt处理器实现JSON转换我的json中有null的字段，我想删除所有这些字段

{............... ＆＃34; myValue＆＃34;：345，＆＃34; colorValue＆＃34;：null，＆＃34; degreeDayValue＆＃34;：null，＆＃34; depthValue＆＃34;：null，＆＃34; distanceValue＆＃34;：null ....... ....}

只保留myValue字段......

我可以通过移除操作来实现这一点吗？最好的祝福菲尔

Answer 1

这是可能的，只是不容易或直截了当。需要两个步骤。

规格

public void onCreate(Bundle savedInstanceState){

super.onCreate(savedInstanceState);
setContentView(R.layout.main);

mButton = (Button)findViewById(R.id.button);
mEdit   = (EditText)findViewById(R.id.edittext);

mButton.setOnClickListener(
    new View.OnClickListener()
    {
        public void onClick(View view)
        {
            Log.v("EditText", mEdit.getText().toString());
        }
    });}

可生产

[
  {
    "operation": "default",
    "spec": {
      // for all keys that have a null value
      //  replace that null value with a placeholder
      "*": "PANTS"
    }
  },
  {
    "operation": "shift",
    "spec": {
      // match all keys
      "*": {
        // if the value of say "colorValue" is PANTS
        //  then, match but do nothing.
        "PANTS": null,
        // otherwise, any other values are ok
        "*": {
          // "recreate" the key and the non-PANTS value
          // Write the value from 2 levels up the tree the "@1"
          //  to the key from 3 levels up the tree => "&2".
          "@1": "&2"
        }
      }
    }
  }
]

Answer 2

要从内部数组中删除null，请在末尾使用以下代码

{
    "operation": "modify-overwrite-beta",
    "spec": {
      "*": "=recursivelySquashNulls"
    }
}

Jolt删除所有空值

2 个答案: