将 JSON 数组转换为对象数组 - Apache camel

Question

[
  {
    "Name": "ABC", 
    "ID": 1,
    "StartDate": 1444845395112,
    "EndDate": null,
    "ValueAction": null,
    "ValueSource": "lmn"
  }, 
  {
    "Name": "PQR", 
    "ID": 2,
    "StartDate": 1444845395119,
    "EndDate": 1446845395119,
    "ValueAction": null,
    "ValueSource": null
  }, 
  {
    "Name": "XYZ", 
    "ID": 3,
    "StartDate": null,
    "EndDate": null,
    "ValueAction": "qwe",
    "ValueSource": "lmn"
  }
]

如何使用 'groovy script/java'

拆分从此 json 创建对象数组如果 StartDate 为 null，

[Name, ID, ValueAction, ValueSource] 这里 ValueAction/ValueSource 应该为 null。所以数组应该是这样的。

 [[ABC,1, , lmn],[PQR,2, , ],[XYZ,3, , ]]

Answer 1

import groovy.json.*

def json = new JsonSlurper().parseText '''[
  {
    "Name": "ABC",
    "ID": 1,
    "StartDate": 1444845395112,
    "EndDate": null,
    "ValueAction": null,
    "ValueSource": "lmn"
  },
  {
    "Name": "PQR",
    "ID": 2,
    "StartDate": 1444845395119,
    "EndDate": 1446845395119,
    "ValueAction": null,
    "ValueSource": null
  },
  {
    "Name": "XYZ",
    "ID": 3,
    "StartDate": null,
    "EndDate": null,
    "ValueAction": "qwe",
    "ValueSource": "lmn"
  }
]
'''

def res = json.findResults{ it.StartDate ? [ it.Name, it.ID, it.ValueAction ?: '', it.ValueSource ] : null }

assert res.toString() == '[[ABC, 1, , lmn], [PQR, 2, , null]]'

下次请 post 有效 JSON.

将 JSON 数组转换为对象数组 - Apache camel

Convert JSON array to Object Array - Apache camel

java

arrays

groovy

json

apache-camel