Go语言视频零基础入门到精通

javalearner

Create:
Read& Write: There are no different between normal file and temporary file, what apply to normal text file, will apply to temporary file as well.
Delete: Temporary file is used to store the less important and temporary data, which should always be deleted when your system is terminated. The best practice is use the File.deleteOnExit（） to do it.

1. import java.io.BufferedReader;
   
2. import java.io.BufferedWriter;
   
3. import java.io.File;
   
4. import java.io.FileReader;
   
5. import java.io.FileWriter;
   
6. import java.io.IOException;
   
7. public class JavaTempFile{
   
8.   public static void main(String[] args){
   
9.    try{
   
10.     //create a temp file
    
11.     File temp = File.createTempFile("temp-file-name", ".tmp");
    
12.     System.out.println("Temp File; "+ temp.getAbsolutePath());
    
13.     //write content to it
    
14.      BufferedWriter bw = new BufferedWriter(new FileWriter(temp));
    
15.      bw.write("Actually, there are no different between normal file and temporary file,
    
16.          what apply to normal text file, will apply to temporary file as well.");
    
17.      bw.close();
    
18.      System.out.println("Content has been writen ");
    
19.      
    
20.      //read it
    
21.      BufferedReader br = new BufferedReader(new FileReader(temp));
    
22.      System.out.println("Content; "+ br.readLine());
    
23.      br.close();
    
24.      //Get tempropary file path
    
25.      String absolutePath = temp.getAbsolutePath();
    
26.      String tempFilePath = absolutePath.substring(0,absolutePath.lastIndexOf(File.separator));
    
27.      System.out.println("Temp file path ; " + tempFilePath);
    
28.      //delete temporary file when the program is exited
    
29.      temp.deleteOnExit();
    
30.      //delete immediate
    
31.      //temp.delete();  
    
32.    }catch(IOException e){
    
33.      e.printStackTrace();
    
34.    }
    
35. }
    
36. }
    

复制代码

运行结果：

Temp File: C:UsersharrypoterAppDataLocalTemp        emp-file-name2692138736359297894.tmp

Content has been writen

Content: Actually, there are no different between normal file and temporary file, what apply to normal text file, will apply to temporary file as well.

Temp file path : C:UsersharrypoterAppDataLocalTemp


   
     
     
      
      

        
      

        
      
     
   

  


源码下载：http://file.javaxxz.com/2014/11/2/235823250.zip