[英]how to remove particular lines when reading text file in java
我想刪除找到“ RxTracker”的行,這是我的文本文件
INFO http-bio-80-exec-1 root - Received data;863071018134228;12.964624;77.523682;NE;23.22376;3.82;0;2013-01-06^08:41:00;
INFO http-bio-80-exec-1 root - RxTracker; IMEINO is 863071018134228
INFO http-bio-80-exec-2 root - RxTracker Invoked. Reading Parameters
INFO http-bio-80-exec-2 root - Received data;863071018134228;12.964624;77.523682;NE;37.66936;3.82;0;2013-01-06^08:42:52;
INFO http-bio-80-exec-2 root - RxTracker; IMEINO is 863071018134228
INFO http-bio-80-exec-5 root - RxTracker Invoked. Reading Parameters
INFO http-bio-80-exec-5 root - Received data;863071018134228;12.964624;77.523682;NE;20.92728;3.82;0;2013-01-06^08:44:51;
INFO http-bio-80-exec-5 root - RxTracker; IMEINO is 863071018134228
INFO http-bio-80-exec-3 root - RxTracker Invoked. Reading Parameters
這是我的Java代碼
public void Insert1()
{
try{
File f=new File("E:/c.txt");
FileReader fr=new FileReader(f);
BufferedReader br=new BufferedReader(fr);
int lineNum = 0;
String line = null;
while ( (line = br.readLine() ) != null ) {
lineNum++;
if(br.readLine().equalsIgnoreCase("RxTracker"))
{
System.out.println("ji");
}
else
{
System.out.println("ji");
}
//if ( lineNum %2 == 0 ) continue;
//else deal with it
System.out.println(br.readLine());
}
}
catch(FileNotFoundException e){
e.printStackTrace();
}
catch(IOException e1){
e1.printStackTrace();
}
嘗試這樣的事情。 代碼讀取文件的每一行並將其寫入另一個文件。每次它檢查該行是否包含RxTracker。如果該行不包含RxTracker,則它將該行寫入新文件,並且如果該行包含該字符串,則它將跳過該行,
例如
String lineToRemove = "RxTracker ;
if(!trimmedLine.contains(lineToRemove)) { // check if t he line does not contains it then write it to another file
writer.write(trimmedLine);
writer.newLine();
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.