Supercsv 示例无法编译

Question

这个直接来自 http://super-csv.github.io/super-csv/examples_reading.html 文档的示例无法编译。 new CellProcessor[]{...} 中的所有行都会生成错误 "Incompatible types. Required: CellProcessor Found:org.supercsv.cellprocessor.constraint.UniqueHashCode"

我错过了什么？

import org.supercsv.cellprocessor.Optional;
import org.supercsv.cellprocessor.ParseBool;
import org.supercsv.cellprocessor.ParseDate;
import org.supercsv.cellprocessor.ParseInt;
import org.supercsv.cellprocessor.constraint.LMinMax;
import org.supercsv.cellprocessor.constraint.NotNull;
import org.supercsv.cellprocessor.constraint.StrRegEx;
import org.supercsv.cellprocessor.constraint.UniqueHashCode;

public class Foo {


    private static CellProcessor[] getProcessors() {

        final String emailRegex = "[a-z0-9\._]+@[a-z0-9\.]+"; // just an example, not very robust!
        StrRegEx.registerMessage(emailRegex, "must be a valid email address");

        final CellProcessor[] processors = new CellProcessor[] {
                new UniqueHashCode(), // customerNo (must be unique)
                new NotNull(), // firstName
                new NotNull(), // lastName
                new ParseDate("dd/MM/yyyy"), // birthDate
                new NotNull(), // mailingAddress
                new Optional(new ParseBool()), // married
                new Optional(new ParseInt()), // numberOfKids
                new NotNull(), // favouriteQuote
                new StrRegEx(emailRegex), // email
                new LMinMax(0L, LMinMax.MAX_LONG) // loyaltyPoints
        };

        return processors;
    }

}

Answer 1

我刚刚在 IntelliJ 中尝试过，唯一的错误是您缺少 CellProcessor 的导入。

添加

import org.supercsv.cellprocessor.ift.CellProcessor;

一切正常。

Supercsv 示例无法编译

Supercsv example doesn't compile

java

csv

supercsv