读写文件操作xml

package com.dhgate.spumanage.web.action;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

public class Test {
public static void main(String[] args) {
//读文件
BufferedReader br = null;
String sCurrentLine;
int sameTime = 0;
String lastNum = "";
CSV csv = new CSV();
CSV c2 = new CSV();
try {
br = new BufferedReader(new FileReader("D:\\Book1.csv"));
while((sCurrentLine = br.readLine()) != null){
System.out.println(sCurrentLine);
String[] split = sCurrentLine.split(",");

System.out.println();

if(split.length>=3){

if(lastNum.equals(split[2])){
sameTime++;
csv.second = split[1];

}else{
sameTime = 0;
}

if(sameTime==0){
csv.first=split[0];
csv.second = split[1];
csv.third = split[2];
}

lastNum = split[2];

//写数据

FileWriter fw = new FileWriter("D:\\result.csv",true);//append true -->>new FileWrite(file,true);
BufferedWriter bw = new BufferedWriter(fw);

if(!csv.third.equals(c2.third)){
bw.write(c2.first+","+c2.second+","+c2.third+"\n");
}

bw.flush();
bw.close();

c2.first = csv.first;
c2.second = csv.second;
c2.third = csv.third;
}

}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

//操作字符串

//写文件
}
}

class CSV {
String first;
String second;
String third;
public String getFirst() {
return first;
}
public String getSecond() {
return second;
}
public String getThird() {
return third;
}
public void setFirst(String first) {
this.first = first;
}
public void setSecond(String second) {
this.second = second;
}
public void setThird(String third) {
this.third = third;
}

}