Java 在文本文件中写入时如何使用“制表符空间”
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how to use "tab space" while writing in text file
提问by Manu
SimpleDateFormat formatter = new SimpleDateFormat("ddMMyyyy_HHmmSS");
String strCurrDate = formatter.format(new java.util.Date());
String strfileNm = "Cust_Advice_" + strCurrDate + ".txt";
String strFileGenLoc = strFileLocation + "/" + strfileNm;
String strQuery="select name, age, data from basetable";
try {
stmt = conn.createStatement();
System.out.println("Query is -> " + strQuery);
rs = stmt.executeQuery(strQuery);
File f = new File(strFileGenLoc);
OutputStream os = (OutputStream)new FileOutputStream(f);
String encoding = "UTF8";
OutputStreamWriter osw = new OutputStreamWriter(os, encoding);
BufferedWriter bw = new BufferedWriter(osw);
while (rs.next() ) {
bw.write(rs.getString(1)==null? "":rs.getString(1));
bw.write(" ");
bw.write(rs.getString(2)==null? "":rs.getString(2));
bw.write(" ");
}
bw.flush();
bw.close();
} catch (Exception e) {
System.out.println(
"Exception occured while getting resultset by the query");
e.printStackTrace();
} finally {
try {
if (conn != null) {
System.out.println("Closing the connection" + conn);
conn.close();
}
} catch (SQLException e) {
System.out.println(
"Exception occured while closing the connection");
e.printStackTrace();
}
}
return objArrayListValue;
}
i need "one tab space" in between each column(while writing to text file). like
我需要每列之间的“一个制表符空间”（写入文本文件时）。喜欢
manu 25 data1
manc 35 data3
in my code i use bw.write(" ")for creating space between each column. how to use "one tab space" in that place instead of giving "space".
在我的代码中，我bw.write(" ")用于在每列之间创建空间。如何在那个地方使用“一个标签空间”而不是给“空间”。
采纳答案by tmeisenh
You can use \tto create a tab in a file.
您可以使用\t在文件中创建选项卡。
回答by Jacinda
Use "\t". That's the tab space character.
使用“\t”。那是制表符空格字符。
You can find a list of many of the Java escape characters here: http://java.sun.com/docs/books/tutorial/java/data/characters.html
您可以在此处找到许多 Java 转义字符的列表：http: //java.sun.com/docs/books/tutorial/java/data/characters.html
回答by Amsakanna
use \t instead of space.
使用 \t 而不是空格。
bw.write("\t");
