将内容写到txt文档里面并读取及删除的方法
将内容写到txt文档里面并读取及删除的方法
发布时间:2016-12-28 来源:查字典编辑
摘要:1、将内容写到txt文档里面复制代码代码如下:publicstaticvoidwriteFile(){StringtxtFileName="...

1、将内容写到txt文档里面

复制代码 代码如下:

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 = "将内容写到txt文件里面!" + line;

out.write(smsContent.toString().getBytes("GBK"));

out.close();

} catch (Exception ex) {

log.error("将结果写入文件失败!", ex);

}

}

2、读取文件里面的内容

复制代码 代码如下:

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("读取数据失败", ex);

} finally {

}

}

3、清除txt文件里面的内容

复制代码 代码如下:

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('清空发送邮件日志成功!');";

} catch (Exception ex) {

script = "alert('清空文件的内容失败,因为没有发送邮件日志文件!');";

}

}

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