一般方式导出

try(Csv csv = CsvBuilder.of(People.class).build(getDataList())){
    AttachmentExportUtil.export(csv.getFilePath(), "test.csv", response);
    // csv.write(Paths.get("/User/append.csv"));
}

Map导出

Map类型为Map<String,Object>

try(Csv csv = CsvBuilder.of(Map.class).build(getMapList())){
    AttachmentExportUtil.export(csv.getFilePath(), "test.csv", response);
    // csv.write(Paths.get("/User/append.csv"));
}

追加方式导出

try(CsvBuilder<CsvPeople> csvBuilder = CsvBuilder.of(People.class)){
    for (int i = 0; i < 10; i++) {
        csvBuilder.append(data(1000));
    }
    Csv csv = csvBuilder.build();
    AttachmentExportUtil.export(csv.getFilePath(), "test.csv", response);
    // csv.write(Paths.get("/User/append.csv"));
}

二次文件追加

try(CsvBuilder<CsvPeople> csvBuilder = CsvBuilder.of(People.class).noTitles()){
    for (int i = 0; i < 10; i++) {
        csvBuilder.append(data(1000));
    }
    Csv csv = csvBuilder.build();
    // 该种方式会在原append.csv文件继续追加数据，而不是覆盖
    csv.write(Paths.get("/User/append.csv"),true);
}

Bean定义

public class People {
    @ExcelColumn(order = 0, title = "姓名")
    private String name;
    @ExcelColumn(order = 1, title = "年龄")
    private Integer age;
    @ExcelColumn(order = 2, title = "性别")
    private String gender;
}

与excel导出注解相比，支持属性减少，width、style属性将不被支持，注解请移步：注解