使用Java将.csv文件解析为xml

Question

大家好，我正在尝试制作一个程序来转换.csv文件中的数据，构建.csv文件的DOM表示形式，然后将其输出到xml文件中。

目前，我正在使用下面的代码来解析.csv文件，但是我不确定如何获取这些信息并构建DOM表示形式。 我已经阅读并遇到了“ jaxb”，但似乎

.csv文件信息

QUESTIONS,Comment,Yes,Comment,No,Comment,Sit,Comment,Stand,Comment,Blank,Comment,Optional,Comment
Is there free circulation of air through and about the building in which you work?,a,468,,249,,,,,,93,,,
"Are there offensive odors in the rooms occupied by employees; if so, from what causes?",b,342,,233,,,,,,235,,,
Are there facilities for washing?,c,460,,124,,,,,,226,,,
"Are seats provided, as prescribed by law?",,320,,192,,,,,,298,,,
Are employees furnished with pure drinking water?,d,527,,102,,,,,,181,,,
Does the work require the employees to stoop over?,,587,,116,,,,,,107,,,
Are there proper and separate facilities for change of dress by males and females?,e,354,,221,,,,,,235,,,
Are there separate water-closets for males and females?,f,509,,126,g,,,,,175,,,
Are there stairways from the windows outside?,,350,,318,,,,,,148,,,
Are the rooms supplied with water pipes?,,265,,385,,,,,,165,,,
Are there hose attachments?,,224,,375,,,,,,218,,,
Are employees compelled to stand or sit at their work?,h,,,,,469,,175,,99,,67,
Are there water tanks and buckets on each floor?,,236,,387,,,,,,198,,,

解析器类。

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.Arrays; 

public class parserClass {

@SuppressWarnings("rawtypes")
   public static void main(String[] args) throws Exception {
               String splitBy = ",";
       BufferedReader br = new BufferedReader(new FileReader("surveydata.csv"));
       String line = br.readLine();
       while((line = br.readLine()) !=null){
            String[] b = line.split(splitBy);
           System.out.println(Arrays.toString(b));
       }
       br.close();

 }
}*

它输出到控制台的信息

  [Is there free circulation of air through and about the building in which you work?, a, 468, , 249, , , , , , 93]
["Are there offensive odors in the rooms occupied by employees; if so,  from what causes?", b, 342, , 233, , , , , , 235]
[Are there facilities for washing?, c, 460, , 124, , , , , , 226]
["Are seats provided,  as prescribed by law?", , 320, , 192, , , , , , 298]
[Are employees furnished with pure drinking water?, d, 527, , 102, , , , , , 181]
[Does the work require the employees to stoop over?, , 587, , 116, , , , , , 107]
[Are there proper and separate facilities for change of dress by males and females?, e, 354, , 221, , , , , , 235]
[Are there separate water-closets for males and females?, f, 509, , 126, g, , , , , 175]
[Are there stairways from the windows outside?, , 350, , 318, , , , , , 148]
[Are the rooms supplied with water pipes?, , 265, , 385, , , , , , 165]
[Are there hose attachments?, , 224, , 375, , , , , , 218]
[Are employees compelled to stand or sit at their work?, h, , , , , 469, , 175, , 99, , 67]
[Are there water tanks and buckets on each floor?, , 236, , 387, , , , , , 198]

Answer 1

也许一个简单的低代码选择是为此使用Jackson。 有一个Jackson CSV模块 ，它将读取CSV文件（具有已定义的模式-在这种情况下，您可以使用标题行），然后将其发送回XML（另一种免费行为）。

可以使用以下方法读取CSV：

CsvSchema bootstrap = CsvSchema.emptySchema().withHeader();
CsvMapper csvMapper = new CsvMapper();
MappingIterator<Map<?, ?>> mappingIterator = csvMapper.reader(Map.class).with(bootstrap).readValues(file);

然后使用以下方式将其作为XML发出：

XmlMapper xmlMapper = new XmlMapper();
xmlMapper.writeValue(mappingIterator.next....

当然，还有许多其他选择可以执行此操作。 至少要使用CSV解析器，例如Apache Commons CSV，并且不要尝试手动解析CSV（存在太多潜在问题，其中大多数问题已经得到了有效解决）。