Read.jsp
$#@60;html$#@62;
$#@60;head$#@62;
$#@60;title$#@62;讀取壹個文件$#@60;/title$#@62;
$#@60;/head$#@62;
$#@60;body bgcolor="#000000"$#@62;
$#@60;%--調用javabean --%$#@62;
$#@60;jsp:useBean id="reader" class="DelimitedDataFile" scope="request"$#@62;
$#@60;jsp:setProperty name="reader" property="path" value="/test/afile.txt" /$#@62;
$#@60;/jsp:useBean$#@62;
$#@60;h3$#@62;文件內容:$#@60;/h3$#@62;
$#@60;p$#@62;
$#@60;% int count = 0; %$#@62;
$#@60;% while (reader.nextRecord() != -1) { %$#@62;
$#@60;% count++; %$#@62;
$#@60;b$#@62;第$#@60;% out.print(count); %$#@62;行:$#@60;/b$#@62;
$#@60;% out.print(reader.returnRecord()); %$#@62;$#@60;br$#@62;
$#@60;% } %$#@62;
$#@60;/p$#@62;
$#@60;/body$#@62;
$#@60;/html$#@62;
//DelimitedDataFile.java bean文件源代碼
//導入java包
import java.io.*;
import java.util.StringTokenizer;
public class DelimitedDataFile
{
private String currentRecord = null;
private BufferedReader file;
private String path;
private StringTokenizer token;
//創建文件對象
public DelimitedDataFile()
{
file = new BufferedReader(new InputStreamReader(System.in),1);
}
public DelimitedDataFile(String filePath) throws FileNotFoundException
{
path = filePath;
file = new BufferedReader(new FileReader(path));
}
//設置文件路徑
public void setPath(String filePath)
{
ath = filePath;
try {
file = new BufferedReader(new
FileReader(path));
} catch (FileNotFoundException e) {
System.out.println("file not found");
}
}
//得到文件路徑
public String getPath() {
return path;
}
//關閉文件
public void fileClose() throws IOException
{
file.close();
}
//讀取下壹行記錄，若沒有則返回-1
public int nextRecord()
{
int returnInt = -1;
try
{
currentRecord = file.readLine();
}
catch (IOException e)
{
System.out.println("readLine problem, terminating.");
}
if (currentRecord == null)
returnInt = -1;
else
{
token = new StringTokenizer(currentRecord);
returnInt = token.countTokens();
}
return returnInt;
}
//以字符串的形式返回整個記錄
public String returnRecord()
{
return currentRecord;
}
}