import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.File; import java.io.FileInputStream; import java.io.FileWriter; import java.io.InputStreamReader; //文件置于工程目录下 public class readFile { /** * @param args */ public String readF(String dir) { String str=""; try { File file=new File(dir); if(file.isFile() && file.exists()){ //判断文件是否存在 InputStreamReader read = new InputStreamReader( new FileInputStream(file));//考虑到编码格式 BufferedReader bufferedReader = new BufferedReader(read); String lineTxt = null; while((lineTxt = bufferedReader.readLine()) != null){ str=str+lineTxt+"\r\n"; } read.close(); }else{ System.out.println("找不到指定的文件"); } } catch (Exception e) { System.out.println("读取文件内容出错"); e.printStackTrace(); } return str; } //合并文件 public String fileCom() { String str1 = readF("/home/cuijh/temp/9900.csv"); String str2 = readF("/home/cuijh/temp/part-m-00000"); String str = str1+str2; try{ BufferedWriter writer = new BufferedWriter(new FileWriter(new File("/home/cuijh/temp/data1.txt"))); writer.write(str); writer.close();}catch(Exception e) { } return str; } public static void main(String[] args) { // TODO Auto-generated method s //System.out.println(new readFile().readF("data.txt")); System.out.println(new readFile().fileCom()); } }
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https://blog.csdn.net/nxcjh321/article/details/25229701?utm_source=blogxgwz2
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