PrintWriter在下一行打印 [英] PrintWriter to print on next line

问题描述

我有以下代码将字符串（从ResultSet）打印到文本文件：

I have the following code to print a string(from a ResultSet) to a text file:

PrintWriter writer = new PrintWriter(new FileOutputStream(file, false));
while(RS.next()) {
    writer.write(RS.getString(1)+"\n");
}

我在写声明中放了一个\ n，希望它将在不同的行上打印每一行，但它失败了。 txt文件当前打印出来，因为row＃是ResultSet中的不同行：

I put a "\n" in the write statement in hopes that it will print each row on a different line, but it failed. The txt file currently prints out like so, with row# being a different row in the ResultSet:

row1row2row3row4row5

row1row2row3row4row5

我希望它打印出来像：

row1

row2

row3

row4

row5

...

推荐答案

你应该使用 println 在每行之后打印换行符：

You should use println to print a newline character after each line:

writer.println(RS.getString(1));

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