java有没有写2D数组的函数，可以将数据提取到csv文件中？

Question

String[][] table = {
                { "fileName", "cadName", "number", "folder_Id", "wC_State",
                        "legacy_Path", "reverified", "createdBy", "iteration",
                        "shouldImport" },
                { "abc.sldprt", "abc.sldprt", "abc.sldprt", "098123",
                        "Working", "C:\\WC", " Empty", "12132019", "2", "True" },
                { "pqr.sldprt", "pqr.sldprt", "pqr.sldprt", "098124", "WIP",
                        "C:\\WC", " Empty", "12092019", "8", "True" },
                { "jku.sldprt", "jku.sldprt", "jku.sldprt", "094123",
                        "Released", "C:\\WC", " Empty", "12072019", "13",
                        "True" },
                { "cmx.sldprt", "cmx.sldprt", "cmx.sldprt", "0981290",
                        "Development", "C:\\WC", "Yes", "12132018", "19",
                        "True" },
                { "abc.sldprt", "abc.sldprt", "abc.sldprt", "09812354",
                        "Working", "C:\\WC", " Empty", "12132019", "3", "True" } };

Answer 1

您可以使用CSVWriter和writeAll()方法来实现这一点。它不适用于二维数组，但适用于Iterable<；字符串[]>；或列表<；字符串[]>；，所以你需要先进行转换

String[][] table = ...;
List<String[]> convertedTable = Arrays.asList(table);
CSVWriter writer = new CSVWriter(new FileWriter(csvFilename));
writer.writeAll(convertedTable);
writer.close();

Answer 2

不，您可以使用Arrays#toString（或自定义toString函数），同时迭代外部数组