如何更改PrintWriter在Java中保存的目录？

我的程序接收用户输入，并将其放入

PrintWriter

我不确定如何更改

PrintWriter

将文本文件保存到的目录。我还需要根据用户输入动态更改文件名。以下是

PrintWriter

的代码：

PrintWriter writer = new PrintWriter(
        "ChangeLog" + textField.getText() + textField_1.getText() + textField_9.getText() + ".txt",
        "UTF-8");
writer.println("Version Number: " + version);
writer.println("Start Date: " + textField.getText());
writer.println("Start time: " + textField_1.getText());
if (rdbtnYes.isSelected()) {
    writer.println("Change was documented in the IT info sheet.");
}
if (rdbtnNo.isSelected()) {
    writer.println("Change was NOT documented in the IT info sheet.");
}
writer.println("Budget Implecation(S): " + textField_2.getText());
writer.println("Server/Network Device: " + textField_3.getText());
writer.println("Process Of Changes Made: " + textField_4.getText());
writer.println("Need(s)/Reason(s) for Change: " + textField_5.getText());
writer.println("Issues/Problems: " + textField_6.getText());
writer.println("Outcome/Results: " + textField_7.getText());
writer.println("Notes/Comments/Other Info" + textField_8.getText());
writer.close();

您正在使用的接受一个字符串参数-表示文件名

文件名可以就是这样；或者，它们可以包含路径信息。您需要不同的路径-然后更改文件名以包含该路径

---

有关相对路径与绝对路径的信息，请参见或。

一种方法是，您需要创建一个FileWriter对象，并告诉它文件将位于您要写入内容的位置。然后将FileWriter对象作为参数传递给PrintWriter构造函数。 请参见下面的示例：

FileWriter  writer      = new FileWriter("d:\\path_to_directory\\report.txt");
PrintWriter printWriter = new PrintWriter (writer);

希望这有帮助！：）

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