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[英]How to fix Error:java.lang.IllegalStateException: Expected BEGIN_ARRAY but was STRING at line 1 column 1 path $
[英]How to fix java.lang.IllegalStateException: Expected BEGIN_ARRAY but was STRING in cmd windows Gson, Apache Spark
我有這段代碼:
File jsonFile = Paths.get(jsonPath).toFile();
BufferedReader bufferedReader = new BufferedReader(new FileReader(jsonFile));
Type collectionType = new TypeToken<List<Pattern>>(){}.getType();
List<Pattern> listPatterns = new Gson().fromJson(bufferedReader, collectionType);
當我在IntelliJ上運行它時,它獲得了成功,但是在構建為jar文件並在Windows CMD中通過Spark-submit運行后得到了錯誤:
spark-submit --class com.bigdata.main.Application --master local[1] target\extraction.jar
錯誤:
Exception in thread "main" com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was STRING at line 1 column 1
at com.google.gson.Gson.fromJson(Gson.java:815)
at com.google.gson.Gson.fromJson(Gson.java:768)
at com.bigdata.main.Application.main(Application.java:42)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.spark.deploy.JavaMainApplication.start(SparkApplication.scala:52)
at org.apache.spark.deploy.SparkSubmit.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:849)
at org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:167)
at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:195)
at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:86)
at org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:924)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:933)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was STRING at line 1 column 1
at com.google.gson.stream.JsonReader.beginArray(JsonReader.java:338)
at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:79)
at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:60)
at com.google.gson.Gson.fromJson(Gson.java:803)
... 14 more
我的json文件在IntelliJ和Centos linux命令中運行正常,但是在Windows上運行時出現錯誤。
Json內容:
[
{
"bankName": "Bank1",
"Patterns": [
{
"category": "daily",
"type": "",
"pattern": "pattern_regex_1"
}
]
},
{
"bankName": "Bank2",
"Patterns": [
{
"category": "daily",
"type": "",
"pattern": "pattern_regex_2"
},
{
"category": "daily",
"type": "",
"pattern": "pattern_regex_3"
},
{
"category": "visa",
"type": "",
"pattern": "pattern_regex_4"
},
{
"category": "visa",
"type": "",
"pattern": "pattern_regex_5"
}
]
}
]
感謝您的支持!
謝謝@vatsalmevada先生,因為他給了我正確的答案!
采用:
String text = new String(Files.readAllBytes(Paths.get("file")), StandardCharsets.UTF_8);
轉換
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