java 合并文件

 1 public void mergeTwoFiles(String inPath1,String inPath2,String outPath){
 2         File out = new File(outPath);
 3         if(!out.exists()) out.mkdir();
 4 
 5         try {
 6             FileReader fr1=new FileReader(inPath1);//读取第一个文件的内容
 7             FileReader fr2=new FileReader(inPath2);//读取第二个文件的内容
 8             BufferedReader br1=new BufferedReader(fr1);
 9             BufferedReader br2=new BufferedReader(fr2);
10             BufferedWriter bw3=new BufferedWriter(new FileWriter(outputFile));
11             String s,s1;
12             s=br1.readLine();
13             s1=br2.readLine();
14             while(s!=null)
15             {
16                 bw3.write(s);//写入第一个文件
17                 s=br1.readLine();
18                 bw3.newLine();//换行
19             }
20             while(s1!=null)
21             {
22                 bw3.write(s1);//写入第二个文件内容
23                 s1=br2.readLine();
24                 bw3.newLine();
25             }
26             br1.close();
27             br2.close();
28             bw3.close();
29             System.out.println("merge succeed...");
30         } catch (FileNotFoundException e) {
31             // TODO Auto-generated catch block
32             e.printStackTrace();
33         } catch (IOException e) {
34             // TODO Auto-generated catch block
35             e.printStackTrace();
36         }
37     }