Question

我的输入是一个Array of Java Objects：

[{"name"="Demo","platform"=[{"id"="1","value"="ios"},{"id"="2","value"="android"}],"language"=[{"id"="1","value"="eng"}],"date"="20/05/2018"}, {"name"="Kernel","platform"=[{"id"="1","value"="macos"},{"id"="2","value"="linux"}],"language"=[{"id"="1","value"="ger"}],"date"="20/05/2018"}]

每个Java Object 包含平台和语言键中的数组，例如以下示例：

{"name"="Demo","platform"=[{"id"="1","value"="ios"},{"id"="2","value"="android"}],"language"=[{"id"="1","value"="eng"}],"date"="20/05/2018"}

这是在text/plain类型中预期的输出：

{"name":"Demo","platform":[{"id":"1","value":"ios"},{"id":"2","value":"android"}],"language":[{"id":"1","value":"eng"}],"date":"20/05/2018"}
{"name":"Kernel","platform":[{"id":"1","value":"macos"},{"id":"2","value":"linux"}],"language":[{"id":"1","value":"ger"}],"date":"20/05/2018"}

从Java到JSON的每个对象
Indent = false
对象之间没有括号或逗号。每行每个对象
不得影响平台和语言键数组

是否可以在不必使用String replace的情况下应用此功能？

Answer 1

因此，您可以使用write函数将每个元素转换为application / json，并使用writer属性indent = false

%dw 2.0
output text/plain
---
payload map ((item, index) -> write(item, "application/json", {indent: false})) reduce ((item, accumulator) -> item ++ "\n" ++ accumulator)

或者，如果您使用的是m子4.2，则可以直接使用application/x-ndjson，它应该可以直接使用

%dw 2.0
output application/x-ndjson
---
payload

Dataweave-每行对象到对象的数组

1 个答案: