Dataweave

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 都包含平台和语言键中的数组 就像这个例子：

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

这是输出预期 text/plain 类型：

{"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"}

每个对象从 Java 到 JSON
每行缩进=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

是否可以在不使用字符串替换的情况下应用它？

Answer 1

因此您可以使用写入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)

或者如果你使用 mule 4.2 你可以直接使用 application/x-ndjson 它应该可以直接工作

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

Dataweave - 每行对象到对象的数组

Dataweave - Array of Objects to Object per line

arrays

tostring

mule