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");                                                      }