Question

我正在尝试将JSON数据解析为变量格式

[
  {
    "Name" : "a",
    "Value" : "1"
  },
  {
    "Name" : "b",
    "Value" : "2"
  },
  {
    "Name" : "c",
    "Value" : "3"
  }
]

输出应该像

a=1
b=2
c=3

这是我尝试过的，但它没有给出预期的结果：

jq '.[].Value' file.txt

Answer 1

由于您只打印出两个值，因此直接打印字符串可能会更容易。

$ jq -r '.[] | "\(.Name)=\(.Value)"' file.txt

Answer 2

您可以使用以下jq命令：

jq -r '.[]|[.Name,.Value]|join("=")' file.json

输出：

a=1
b=2
c=3

Answer 3

使用jq 'map({(.Name):.Value})|add|.//={}' < data.json：

{
  "a": "1",
  "b": "2",
  "c": "3"
}

产地：

jq

如果你有from_entries版本1.5+，则可以使用private boolean checkAndRequestPermissions() { int permissionSendMessage = ContextCompat.checkSelfPermission(this, Manifest.permission.READ_CONTACTS); int locationPermission = ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION); List<String> listPermissionsNeeded = new ArrayList<>(); if (locationPermission != PackageManager.PERMISSION_GRANTED) { listPermissionsNeeded.add(Manifest.permission.ACCESS_FINE_LOCATION); } if (permissionSendMessage != PackageManager.PERMISSION_GRANTED) { listPermissionsNeeded.add(Manifest.permission.READ_CONTACTS); } if (!listPermissionsNeeded.isEmpty()) { ActivityCompat.requestPermissions(this, listPermissionsNeeded.toArray(new String[listPermissionsNeeded.size()]),REQUEST_ID_MULTIPLE_PERMISSIONS); return false; } return true; } @Override public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) { Log.d(TAG, "Permission callback called-------"); switch (requestCode) { case REQUEST_ID_MULTIPLE_PERMISSIONS: { Map<String, Integer> perms = new HashMap<>(); // Initialize the map with both permissions perms.put(Manifest.permission.READ_CONTACTS, PackageManager.PERMISSION_GRANTED); perms.put(Manifest.permission.ACCESS_FINE_LOCATION, PackageManager.PERMISSION_GRANTED); // Fill with actual results from user if (grantResults.length > 0) { for (int i = 0; i < permissions.length; i++) perms.put(permissions[i], grantResults[i]); // Check for both permissions if (perms.get(Manifest.permission.READ_CONTACTS) == PackageManager.PERMISSION_GRANTED && perms.get(Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) { Log.d(TAG, "contacts & location services permission granted"); // process the normal flow //else any one or both the permissions are not granted } else { Log.d(TAG, "Some permissions are not granted ask again "); //permission is denied (this is the first time, when "never ask again" is not checked) so ask again explaining the usage of permission // // shouldShowRequestPermissionRationale will return true //show the dialog or snackbar saying its necessary and try again otherwise proceed with setup. if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.SEND_SMS) || ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.ACCESS_FINE_LOCATION)) { showDialogOK("Contacts and Location Services Permission required for this app", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { switch (which) { case DialogInterface.BUTTON_POSITIVE: checkAndRequestPermissions(); break; case DialogInterface.BUTTON_NEGATIVE: // proceed with logic by disabling the related features or quit the app. break; } } }); } //permission is denied (and never ask again is checked) //shouldShowRequestPermissionRationale will return false else { Toast.makeText(this, "Go to settings and enable permissions", Toast.LENGTH_LONG) .show(); // //proceed with logic by disabling the related features or quit the app. } } } } } }代替。

Answer 4

这样做

python3 -c 'import json; print("\n".join(["{}={}".format(x["Value"], x["Name"]) for x in json.load(open("file.json"))]))'

结果

a=1
b=2
c=3

将JSON数据解析为变量赋值格式

4 个答案: