public static void main(String[] args) throws IOException {
String fileContent = readFileContent("d:/aaa.txt");
System.out.println(fileContent);
}
//参数string为你的文件名
private static String readFileContent(String fileName) throws IOException {
File file = new File(fileName);
BufferedReader bf = new BufferedReader(new FileReader(file));
String content = "";
StringBuilder sb = new StringBuilder();
while(content != null){
content = bf.readLine();
if(content == null){
break;
}
sb.append(content.trim());
}
bf.close();
return sb.toString();
}