合并两个数组并覆盖值 |数据编织答案

【问题标题】：Merge two arrays and overwrite values | Dataweave合并两个数组并覆盖值 |数据编织
【发布时间】：2022-11-02 18:13:56
【问题描述】：

我有将全局数组与另一个自定义数组合并的情况，或者如果名称相同，请使用自定义值。

全球的：

{
  "connections": [
   {
    "name": "Test SFTP",
    "type": "SFTP",
    "user": "sftpuser",
    "password": "password",
    "server": "127.0.0.1",
    "port": 22,
   },
   {
    "name": "Test FTP",
    "type": "FTP",
    "user": "ftpuser",
    "password": "password",
    "server": "127.0.0.1",
    "port": 21,
   }
 ]
}

风俗：

{
  "connections": [
   {
    "name": "Test SFTP",
    "user": "sftpuser1",
    "password": "password1",
    "server": "127.0.0.2",
   },

   {
    "name": "Test FTPS",
    "type": "FTPS",
    "user": "ftpsuser",
    "password": "password",
    "server": "127.0.0.1",
    "port": 990,
   }
 ]
}

预期的：

{
  "connections": [
   {
    "name": "Test SFTP",
    "type": "SFTP",
    "user": "sftpuser1",
    "password": "password1",
    "server": "127.0.0.2",
    "port": 22,
   },
   {
    "name": "Test FTP",
    "type": "FTP",
    "user": "ftpuser",
    "password": "password",
    "server": "127.0.0.1",
    "port": 21,
   },
   {
    "name": "Test FTPS",
    "type": "FTPS",
    "user": "ftpsuser",
    "password": "password",
    "server": "127.0.0.1",
    "port": 990,
   }
 ]
}

全局将始终具有所有字段，但自定义可以具有名称+只有一个字段来覆盖全局。

稍后我将验证 json 是否正常，但现在我只需要合并和覆盖。

谢谢，伊万

【问题讨论】：

标签： arrays dataweave

【解决方案1】：

下面的脚本会帮助你。

%dw 2.0
output application/json
import * from dw::core::Arrays

var global = {
  "connections": [
   {
    "name": "Test SFTP",
    "type": "SFTP",
    "user": "sftpuser",
    "password": "password",
    "server": "127.0.0.1",
    "port": 22,
   },
   {
    "name": "Test FTP",
    "type": "FTP",
    "user": "ftpuser",
    "password": "password",
    "server": "127.0.0.1",
    "port": 21,
   }
 ]
}
var custom  = {
  "connections": [
   {
    "name": "Test SFTP",
    "user": "sftpuser1",
    "password": "password1",
    "server": "127.0.0.2",
   },

   {
    "name": "Test FTPS",
    "type": "FTPS",
    "user": "ftpsuser",
    "password": "password",
    "server": "127.0.0.1",
    "port": 990,
   }
 ]
}
---
((outerJoin(global.connections, custom.connections, (g) -> g.name, (c) -> c.name) )map  ( (($.r default {}) ++ ($.l default {})))) map ($ distinctBy $$ )

【讨论】：