ule子-映射数组或对象JSON响应

Question

我调用一个在成功的情况下返回json数组的Web服务：

[
  {"name":"a"},
  {"name":"b"}
]

并且在失败的情况下，它返回一个对象：

{
 "status":"Failed",
 "describtion":"Error occured"
}

如何映射两个响应以便处理它们？

Answer 1

您可以根据Web服务响应代码使用不同的转换。

像这样：

<choice> 
  <when expression="#[message.inboundProperties['http.status'] == 200]">
    <!-- transform success response -->
  </when>
  <otherwise>
    <!-- transform failure response -->
  </otherwise>
</choice>

Answer 2

您可以使用

JSONObject json = new JSONObject(yourdata);
String statistics = json.getString("status");

if(status == null){
// Show error message
}else{
  String statistics = json.getString("name");
 }

 Try this. Let me know if it not work. I'll give another solution

Answer 3

在HTTP之后在“转换消息”下面使用，您将获得正确的输出。

%dw 1.0
%output application/json
---
{
    Status:"Success" when payload.status != 'Failed' otherwise "Failure",
    Describtion:payload.describtion when payload.status == 'Failed' otherwise null,
    Data:payload when payload.status != 'Failed' otherwise null
}

之后，您的输出将是

1，成功案例

{
    "Status": "Success",
    "Describtion": null,
    "Data": [
        {
            "name": "a"
        },
        {
            "name": "b"
        }
    ]
}

2.故障案例

{
    "Status": "Failure",
    "Describtion": "Error occured",
    "Data": null
}