將內(nèi)容寫到txt文檔里面并讀取及刪除的方法
更新時間:2014年01月07日 16:02:30 作者:
本文有個不錯的示例,主要講解如何將內(nèi)容寫到txt文檔里面、讀取文件里面的內(nèi)容以及清除txt文件里面的內(nèi)容
1、將內(nèi)容寫到txt文檔里面
public static void writeFile() {
String txtFileName = "emailRecord.txt";
String directoryPath = "";
try {
directoryPath = WebplusContext.getRealPath("/apps/schoolfellow/upload/smsRecord");
File directory = new File(directoryPath);
if (!directory.exists()) {
directory.mkdirs();
}
File txtFile = new File(directoryPath, txtFileName);
FileOutputStream out = new FileOutputStream(txtFile, true);
String line = System.getProperty("line.separator");
String smsContent = "將內(nèi)容寫到txt文件里面!" + line;
out.write(smsContent.toString().getBytes("GBK"));
out.close();
} catch (Exception ex) {
log.error("將結(jié)果寫入文件失??!", ex);
}
}
2、讀取文件里面的內(nèi)容
public void readerFile() {
String filePath = WebplusContext.getServletContext().getRealPath("/apps/schoolfellow/upload/emailRecord/emailRecord.txt");
FileInputStream fis = null;
try {
fis = new FileInputStream(filePath);
InputStreamReader reader = new InputStreamReader(fis, "GBK");
BufferedReader br = new BufferedReader(reader);
String info = "";
schoolfellows = new ArrayList<SchoolfellowDataViewWrap>();
while ((info = br.readLine()) != null) {
System.out.println(info);
}
br.close();
fis.close();
} catch (Exception ex) {
log.error("讀取數(shù)據(jù)失敗", ex);
} finally {
}
}
3、清除txt文件里面的內(nèi)容
public void clearFileContent() {
String filePath = WebplusContext.getServletContext().getRealPath("/apps/schoolfellow/upload/emailRecord/emailRecord.txt");
try {
FileOutputStream out = new FileOutputStream(filePath,false);
out.write(new String("").getBytes());
out.close();
script = "alert('清空發(fā)送郵件日志成功!');";
} catch (Exception ex) {
script = "alert('清空文件的內(nèi)容失敗,因為沒有發(fā)送郵件日志文件!');";
}
}
復(fù)制代碼 代碼如下:
public static void writeFile() {
String txtFileName = "emailRecord.txt";
String directoryPath = "";
try {
directoryPath = WebplusContext.getRealPath("/apps/schoolfellow/upload/smsRecord");
File directory = new File(directoryPath);
if (!directory.exists()) {
directory.mkdirs();
}
File txtFile = new File(directoryPath, txtFileName);
FileOutputStream out = new FileOutputStream(txtFile, true);
String line = System.getProperty("line.separator");
String smsContent = "將內(nèi)容寫到txt文件里面!" + line;
out.write(smsContent.toString().getBytes("GBK"));
out.close();
} catch (Exception ex) {
log.error("將結(jié)果寫入文件失??!", ex);
}
}
2、讀取文件里面的內(nèi)容
復(fù)制代碼 代碼如下:
public void readerFile() {
String filePath = WebplusContext.getServletContext().getRealPath("/apps/schoolfellow/upload/emailRecord/emailRecord.txt");
FileInputStream fis = null;
try {
fis = new FileInputStream(filePath);
InputStreamReader reader = new InputStreamReader(fis, "GBK");
BufferedReader br = new BufferedReader(reader);
String info = "";
schoolfellows = new ArrayList<SchoolfellowDataViewWrap>();
while ((info = br.readLine()) != null) {
System.out.println(info);
}
br.close();
fis.close();
} catch (Exception ex) {
log.error("讀取數(shù)據(jù)失敗", ex);
} finally {
}
}
3、清除txt文件里面的內(nèi)容
復(fù)制代碼 代碼如下:
public void clearFileContent() {
String filePath = WebplusContext.getServletContext().getRealPath("/apps/schoolfellow/upload/emailRecord/emailRecord.txt");
try {
FileOutputStream out = new FileOutputStream(filePath,false);
out.write(new String("").getBytes());
out.close();
script = "alert('清空發(fā)送郵件日志成功!');";
} catch (Exception ex) {
script = "alert('清空文件的內(nèi)容失敗,因為沒有發(fā)送郵件日志文件!');";
}
}
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