Java lib或应用程序将CSV转换为XML文件?[已关闭]
2022-08-31 08:53:47
Java中是否有现有的应用程序或库允许我将数据文件转换为文件?CSV
XML
标记可能通过包含列标题的第一行提供。XML
Java中是否有现有的应用程序或库允许我将数据文件转换为文件?CSV
XML
标记可能通过包含列标题的第一行提供。XML
与上面的其他人一样,我不知道任何一步到位的方法,但是如果您准备使用非常简单的外部库,我会建议:
用于解析 CSV 的 OpenCsv(小巧、简单、可靠且易于使用)
Xstream解析/序列化XML(非常非常易于使用,并创建完全人类可读的xml)
使用与上面相同的示例数据,代码将如下所示:
package fr.megiste.test;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.List;
import au.com.bytecode.opencsv.CSVReader;
import com.thoughtworks.xstream.XStream;
public class CsvToXml {
public static void main(String[] args) {
String startFile = "./startData.csv";
String outFile = "./outData.xml";
try {
CSVReader reader = new CSVReader(new FileReader(startFile));
String[] line = null;
String[] header = reader.readNext();
List out = new ArrayList();
while((line = reader.readNext())!=null){
List<String[]> item = new ArrayList<String[]>();
for (int i = 0; i < header.length; i++) {
String[] keyVal = new String[2];
String string = header[i];
String val = line[i];
keyVal[0] = string;
keyVal[1] = val;
item.add(keyVal);
}
out.add(item);
}
XStream xstream = new XStream();
xstream.toXML(out, new FileWriter(outFile,false));
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
生成以下结果:(Xstream 允许对结果进行非常精细的调整...)
<list>
<list>
<string-array>
<string>string</string>
<string>hello world</string>
</string-array>
<string-array>
<string>float1</string>
<string>1.0</string>
</string-array>
<string-array>
<string>float2</string>
<string>3.3</string>
</string-array>
<string-array>
<string>integer</string>
<string>4</string>
</string-array>
</list>
<list>
<string-array>
<string>string</string>
<string>goodbye world</string>
</string-array>
<string-array>
<string>float1</string>
<string>1e9</string>
</string-array>
<string-array>
<string>float2</string>
<string>-3.3</string>
</string-array>
<string-array>
<string>integer</string>
<string>45</string>
</string-array>
</list>
<list>
<string-array>
<string>string</string>
<string>hello again</string>
</string-array>
<string-array>
<string>float1</string>
<string>-1</string>
</string-array>
<string-array>
<string>float2</string>
<string>23.33</string>
</string-array>
<string-array>
<string>integer</string>
<string>456</string>
</string-array>
</list>
<list>
<string-array>
<string>string</string>
<string>hello world 3</string>
</string-array>
<string-array>
<string>float1</string>
<string>1.40</string>
</string-array>
<string-array>
<string>float2</string>
<string>34.83</string>
</string-array>
<string-array>
<string>integer</string>
<string>4999</string>
</string-array>
</list>
<list>
<string-array>
<string>string</string>
<string>hello 2 world</string>
</string-array>
<string-array>
<string>float1</string>
<string>9981.05</string>
</string-array>
<string-array>
<string>float2</string>
<string>43.33</string>
</string-array>
<string-array>
<string>integer</string>
<string>444</string>
</string-array>
</list>
</list>