文件与字符串相互转换

/**
 * 文件转换为字符串
 * 
 * */

public class Test {
public static String file2Str(File file) throws IOException{
BufferedReader bufferReader = new BufferedReader(new FileReader(file));
StringBuffer sb=new StringBuffer();
   while(bufferReader.readLine()!=null){
sb.append(bufferReader.readLine()+"\r\n");
}
bufferReader.close();
return sb.toString().trim();
}

}

/**
* 字符串转换为文件
* */
public static boolean str2File(String str,String filePaht) throws IOException{
File destFile=new File(filePaht);
if(!destFile.getParentFile().exists()){
destFile.getParentFile().mkdir();
}
BufferedWriter writer = new BufferedWriter(new FileWriter(filePaht));
BufferedReader reader = new BufferedReader(new StringReader(str));
char[] buffer=new char[1024];
int len=0;
try {
while((len=reader.read(buffer))!=-1){
writer.write(buffer, 0, len);
}
writer.flush();
} catch (IOException e) {
e.printStackTrace();
return false;
}finally{
if(writer!=null)
writer.close();
if(reader!=null)
reader.close();
}
return true;
}