使用java更新特定单元csv文件 [英] updating specific cell csv file using java

问题描述

您好，我有一个小问题，并认为我只是没有得到正确的语法在一行代码。基本上，我可以写入我的csv文件，并使用字符串tokenizer查找特定的记录，但它不更新/编辑该记录的指定单元格。记录保持不变。请帮助....

Hi i have a small problem and think i'm just not getting the correct syntax on one line of code. basically, i can write into my csv file and find a specific record using string tokenizer but it is not updating/editing the specified cells of that record. the record remains the same. please help....

推荐答案

我使用了 http：//opencsv.sourceforge.net

您好，
这是通过指定行和列来更新CSV的代码

Hi, This is the code to update CSV by specifying row and column

/**
 * Update CSV by row and column
 * 
 * @param fileToUpdate CSV file path to update e.g. D:\\chetan\\test.csv
 * @param replace Replacement for your cell value
 * @param row Row for which need to update 
 * @param col Column for which you need to update
 * @throws IOException
 */
public static void updateCSV(String fileToUpdate, String replace,
    int row, int col) throws IOException {

File inputFile = new File(fileToUpdate);

// Read existing file 
CSVReader reader = new CSVReader(new FileReader(inputFile), ',');
List<String[]> csvBody = reader.readAll();
// get CSV row column  and replace with by using row and column
csvBody.get(row)[col] = replace;
reader.close();

// Write to CSV file which is open
CSVWriter writer = new CSVWriter(new FileWriter(inputFile), ',');
writer.writeAll(csvBody);
writer.flush();
writer.close();
}

此解决方案适用于我，
Cheers！

This solution worked for me, Cheers!

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