如何解析csv文件并在java bean类中存储datails [英] How to parse a csv file and store datails in java bean class

问题描述

我需要解析一个csv文件并将数据存储到Java bean类中.喜欢:

I need to parse a csv file and store the data into a java bean class. Like:

email,fname,lname
[e-mail],abc,xyz

这些细节放入bean类中.我能够解析一个csv文件.如何在bean类中存储详细信息.

These details into a bean class. I am able to parse a csv file. How to store details in bean class.

private static List<List<String>> readTXTFile(String csvFileName) throws IOException {

     String line = null;
    BufferedReader stream = null;
    List<List<String>> csvData = new ArrayList<List<String>>();

    try {
        stream = new BufferedReader(new FileReader(csvFileName));
        while ((line = stream.readLine()) != null) {
            String[] splitted = line.split(",");
            List<String> dataLine = new ArrayList<String>(splitted.length);
            for (String data : splitted)
                dataLine.add(data);
            csvData.add(dataLine);
        }
    } finally {
        if (stream != null)
            stream.close();
    }

    return csvData;

}

上面的代码正在解析csv文件，但我希望将该数据插入到Java bean类中.

the above code is parsing csv file but i want that data to be inserted in java bean class.

推荐答案

创建POJO

private class Data{//You can make it public too, in a separate class
    String email;
    String fname;
    String lname;

    //Getters

    //Setters
}

在您的原始课堂上，您可以像这样使用

In your original class you can use like this

List<Data> datas = new ArrayList<Data>();
try {
    stream = new BufferedReader(new FileReader(csvFileName));
    while ((line = stream.readLine()) != null) {
        String[] splitted = line.split(",");
        Data data = new Data();
        data.setEmail(splitted[0]);
        data.setFname(splitted[1]);
        data.setLname(splitted[2]);

        datas.add(data);
    }
} 

您将在arraylist中拥有所有行.您可以进行空检查以提高效率.

You will have all rows in your arraylist. You can put a null check to make it more efficient.

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