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ÍøÖ·£º  http://blog.csdn.net/justinavril/archive/2008/08/06/2775767.aspx
import
 java.io.*;  
  
public
 
class
 FileToString {  
     public
 
static
 String readFile(String fileName) {  
        String output = ""
;   
          
        File file = new
 File(fileName);  
             
        if
(file.exists()){  
            if
(file.isFile()){  
                try
{  
                    BufferedReader input = new
 BufferedReader (
new
 FileReader(file));  
                    StringBuffer buffer = new
 StringBuffer();  
                    String text;  
                         
                    while
((text = input.readLine()) != 
null
)  
            &n