Spring Boot opencsv

编程问答 2022-06-07

问题描述

我正在尝试使用opencsv来解析这样的csv文件：

name,purchase,date
TEST,TEST,2020-10-20T00:37:53.562000000Z
TEST,2020-10-20T00:37:53.562000000Z

我正在尝试按照本教程https://attacomsian.com/blog/spring-boot-upload-parse-csv-file将已解析的数据添加到firebase数据库。这是我的数据课程：

public class Records {
  @CsvBindByName
  private String name;
  @CsvBindByName
  private String purchase;
  @CsvBindByName
  private Timestamp date;

  // get and setters left out for brevity pls comment if needed
}

解析文件时出现此错误：

Exception in thread "pool-6-thread-2" Exception in thread "pool-6-thread-1" Exception in thread "pool-6-thread-4" Exception in thread "pool-6-thread-3" java.lang.RuntimeException: com.opencsv.exceptions.CsvDataTypeMismatchException: Conversion of 2022-10-20T00:37:53.562000000Z to com.google.cloud.Timestamp failed.
    at com.opencsv.bean.concurrent.ProcessCsvLine.run(ProcessCsvLine.java:99)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Caused by: com.opencsv.exceptions.CsvDataTypeMismatchException: Conversion of 2022-10-20T00:37:53.562000000Z to com.google.cloud.Timestamp failed.
    at com.opencsv.bean.ConverterPrimitiveTypes.convertToRead(ConverterPrimitiveTypes.java:128)
    at com.opencsv.bean.BeanFieldSingleValue.convert(BeanFieldSingleValue.java:98)
    at com.opencsv.bean.AbstractBeanField.setFieldValue(AbstractBeanField.java:180)
    at com.opencsv.bean.AbstractMappingStrategy.setFieldValue(AbstractMappingStrategy.java:581)
    at com.opencsv.bean.AbstractMappingStrategy.populateNewBean(AbstractMappingStrategy.java:328)
    at com.opencsv.bean.concurrent.ProcessCsvLine.processLine(ProcessCsvLine.java:128)
    at com.opencsv.bean.concurrent.ProcessCsvLine.run(ProcessCsvLine.java:83)
    ... 3 more
Caused by: org.apache.commons.beanutils.ConversionException: Can't convert value '2022-10-20T00:37:53.562000000Z' to type class com.google.cloud.Timestamp
    at org.apache.commons.beanutils.converters.AbstractConverter.conversionException(AbstractConverter.java:474)
    at org.apache.commons.beanutils.converters.StringConverter.convertToType(StringConverter.java:96)
    at org.apache.commons.beanutils.converters.AbstractConverter.convert(AbstractConverter.java:169)
    at org.apache.commons.beanutils.converters.ConverterFacade.convert(ConverterFacade.java:61)
    at org.apache.commons.beanutils.ConvertUtilsBean.convert(ConvertUtilsBean.java:491)
    at com.opencsv.bean.ConverterPrimitiveTypes.convertToRead(ConverterPrimitiveTypes.java:118)
    ... 9 more

如何解决此错误？我是否需要更改日期列的格式？我从数据库中的记录中复制了日期格式，以便该日期格式应如何存储在数据库中

解决方法

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firebasefirebasejavajavaopencsvspring-boot