Java通过BufferedWriter追加内容到文件末尾的几种常用方法

import java.io.BufferedWriter;                                                       import java.io.FileOutputStream;                                                     import java.io.FileWriter;                                                           import java.io.IOException;                                                          import java.io.OutputStreamWriter;                                                   import java.io.RandomAccessFile;                                                                                                                                                                                                                               public class WriteStreamAppend {                                                                                                                                              public static void method1(String file, String conent) {                                 BufferedWriter out = null;                                                           try {                                                                                     out = new BufferedWriter(new OutputStreamWriter(                                            new FileOutputStream(file, true)));                                           out.write(conent);                                                               } catch (Exception e) {                                                                  e.printStackTrace();                                                             } finally {                                                                             try {                                                                                     out.close();                                                                     } catch (IOException e) {                                                                e.printStackTrace();                                                             }                                                                                }                                                                                }                                                                                                                                                                                                                                                             public static void method2(String fileName, String content) {                            try {                                                                                    // 打开一个写文件器，构造函数中的第二个参数true表示以追加形式写文件                   FileWriter writer = new FileWriter(fileName, true);                                  writer.write(content);                                                               writer.close();                                                                  } catch (IOException e) {                                                                e.printStackTrace();                                                             }                                                                                }                                                                                                                                                                                                                                                             public static void method3(String fileName, String content) {                            try {                                                                                    // 打开一个随机访问文件流，按读写方式                                                 RandomAccessFile randomFile = new RandomAccessFile(fileName, "rw");                 // 文件长度，字节数                                                                  long fileLength = randomFile.length();                                               // 将写文件指针移到文件尾。                                                           randomFile.seek(fileLength);                                                         randomFile.writeBytes(content);                                                      randomFile.close();                                                              } catch (IOException e) {                                                                e.printStackTrace();                                                             }                                                                                }                                                                                                                                                                        public static void main(String[] args) {                                                  System.out.println("start");                                                         method1("c:/test.txt", "追加到文件的末尾");                                          System.out.println("end");                                                       }