文件移动
来源:互联网 发布:web前端优化面试题 编辑:程序博客网 时间:2024/05/18 02:25
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- private void transferFile(String oldPath,String newPath) throws Exception {
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- int byteread = 0;
- File oldFile = new File(oldPath);
- FileInputStream fin = null;
- FileOutputStream fout = null;
- try{
- if(oldFile.exists()){
- fin = new FileInputStream(oldFile);
- fout = new FileOutputStream(newPath);
- byte[] buffer = new byte[fin.available()];
- while( (byteread = fin.read(buffer)) != -1){
- logger.debug("byteread=="+byteread);
- fout.write(buffer,0,byteread);
- }
- if(fin != null){
- fin.close();
- this.delFile(oldFile);
- }
- }else{
- throw new Exception("需要转移的文件不存在!");
- }
- }catch(Exception e){
- e.printStackTrace();
- throw e;
- }finally{
- if(fin != null){
- fin.close();
- }
- }
- }
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- private void delFile(File file) throws Exception {
- if(!file.exists()) {
- throw new Exception("文件"+file.getName()+"不存在,请确认!");
- }
- if(file.isFile()){
- if(file.canWrite()){
- file.delete();
- }else{
- throw new Exception("文件"+file.getName()+"只读,无法删除,请手动删除!");
- }
- }else{
- throw new Exception("文件"+file.getName()+"不是一个标准的文件,有可能为目录,请确认!");
- }
- }