Apache kafka 将JSON转换为Avro失败：将JSON转换为Avro失败：未知联合分支
我试图使用Kafka rest服务将JSON序列化为Avro对象，向Kafka主题发送JSON消息，但Kafka rest无法接受JSON消息，错误如下：Apache kafka 将JSON转换为Avro失败：将JSON转换为Avro失败：未知联合分支,apache-kafka,avro,confluent-schema-registry,Apache Kafka,Avro,Confluent Schema Registry,我试图使用Kafka rest服务将JSON序列化为Avro对象，向Kafka主题发送JSON消息，但Kafka rest无法接受JSON消息，错误如下： Conversion of JSON to Avro failed: Failed to convert JSON to Avro: Unknown union branch postId 我怀疑我使用的Avro模式存在问题，因为它是一种带有可空字段的嵌套记录类型 Avro模式： { "type": "record", "name"
Conversion of JSON to Avro failed: Failed to convert JSON to Avro: Unknown union branch postId
{
"type": "record",
"name": "ExportRequest",
"namespace": "com.example.avro.model",
"fields": [
{
"name": "context",
"type": {
"type": "map",
"values": {
"type": "string",
"avro.java.string": "String"
},
"avro.java.string": "String"
}
},
{
"name": "exportInfo",
"type": {
"type": "record",
"name": "ExportInfo",
"fields": [
{
"name": "exportId",
"type": {
"type": "string",
"avro.java.string": "String"
}
},
{
"name": "exportType",
"type": {
"type": "string",
"avro.java.string": "String"
}
},
{
"name": "exportQuery",
"type": {
"type": "record",
"name": "ExportQuery",
"fields": [
{
"name": "postExport",
"type": [
"null",
{
"type": "record",
"name": "PostExport",
"fields": [
{
"name": "postId",
"type": {
"type": "string",
"avro.java.string": "String"
}
},
{
"name": "isCommentIncluded",
"type": "boolean"
}
]
}
],
"default": null
},
{
"name": "feedExport",
"type": [
"null",
{
"type": "record",
"name": "FeedExport",
"fields": [
{
"name": "accounts",
"type": {
"type": "array",
"items": {
"type": "string",
"avro.java.string": "String"
}
}
},
{
"name": "recordTypes",
"type": {
"type": "array",
"items": {
"type": "string",
"avro.java.string": "String"
}
}
},
{
"name": "actions",
"type": {
"type": "array",
"items": {
"type": "string",
"avro.java.string": "String"
}
}
},
{
"name": "contentTypes",
"type": {
"type": "array",
"items": {
"type": "string",
"avro.java.string": "String"
}
}
},
{
"name": "startDate",
"type": "long"
},
{
"name": "endDate",
"type": "long"
},
{
"name": "advancedSearch",
"type": [
"null",
{
"type": "record",
"name": "AdvancedSearchExport",
"fields": [
{
"name": "allOfTheWords",
"type": {
"type": "array",
"items": {
"type": "string",
"avro.java.string": "String"
}
}
},
{
"name": "anyOfTheWords",
"type": {
"type": "array",
"items": {
"type": "string",
"avro.java.string": "String"
}
}
},
{
"name": "noneOfTheWords",
"type": {
"type": "array",
"items": {
"type": "string",
"avro.java.string": "String"
}
}
},
{
"name": "hashtags",
"type": {
"type": "array",
"items": {
"type": "string",
"avro.java.string": "String"
}
}
},
{
"name": "keyword",
"type": {
"type": "string",
"avro.java.string": "String"
}
},
{
"name": "exactPhrase",
"type": {
"type": "string",
"avro.java.string": "String"
}
}
]
}
],
"default": null
}
]
}
],
"default": null
}
]
}
}
]
}
}
]
}
{
"context": {
"user_id": "1",
"group_id": "1",
"organization_id": "1"
},
"exportInfo": {
"exportId": "93874dd7-35d7-4f1f-8cf8-051c606d920b",
"exportType": "json",
"exportQuery": {
"postExport": {
"postId": "dd",
"isCommentIncluded": false
},
"feedExport": {
"accounts": [
"1677143852565319"
],
"recordTypes": [],
"actions": [],
"contentTypes": [],
"startDate": 0,
"endDate": 0,
"advancedSearch": {
"allOfTheWords": [
"string"
],
"anyOfTheWords": [
"string"
],
"noneOfTheWords": [
"string"
],
"hashtags": [
"string"
],
"keyword": "string",
"exactPhrase": "string"
}
}
}
}
}
如果有人能帮助我了解问题所在，我将不胜感激。您的JSON和Avro看起来都不错 您正面临这个问题，因为JSON不符合 因此，如果您相应地转换JSON，它将以某种方式如下所示
{
"context": {
"user_id": "1",
"group_id": "1",
"organization_id": "1"
},
"exportInfo": {
"exportId": "93874dd7-35d7-4f1f-8cf8-051c606d920b",
"exportType": "json",
"exportQuery": {
"postExport": {
"com.example.avro.model.PostExport": {
"postId": "dd",
"isCommentIncluded": false
}
},
"feedExport": {
"com.example.avro.model.FeedExport": {
"accounts": [
"1677143852565319"
],
"recordTypes": [],
"actions": [],
"contentTypes": [],
"startDate": 0,
"endDate": 0,
"advancedSearch": {
"com.example.avro.model.AdvancedSearchExport": {
"allOfTheWords": [
"string"
],
"anyOfTheWords": [
"string"
],
"noneOfTheWords": [
"string"
],
"hashtags": [
"string"
],
"keyword": "string",
"exactPhrase": "string"
}
}
}
}
}
}
}
JSON和Avro看起来都不错 您正面临这个问题，因为JSON不符合 因此，如果您相应地转换JSON，它将以某种方式如下所示
{
"context": {
"user_id": "1",
"group_id": "1",
"organization_id": "1"
},
"exportInfo": {
"exportId": "93874dd7-35d7-4f1f-8cf8-051c606d920b",
"exportType": "json",
"exportQuery": {
"postExport": {
"com.example.avro.model.PostExport": {
"postId": "dd",
"isCommentIncluded": false
}
},
"feedExport": {
"com.example.avro.model.FeedExport": {
"accounts": [
"1677143852565319"
],
"recordTypes": [],
"actions": [],
"contentTypes": [],
"startDate": 0,
"endDate": 0,
"advancedSearch": {
"com.example.avro.model.AdvancedSearchExport": {
"allOfTheWords": [
"string"
],
"anyOfTheWords": [
"string"
],
"noneOfTheWords": [
"string"
],
"hashtags": [
"string"
],
"keyword": "string",
"exactPhrase": "string"
}
}
}
}
}
}
}