public class ConvertFile2String {
public static void main(String[] args) throws FileNotFoundException, IOException {
File file=new File("E:\\Code\\Jretec\\PCBwebsiteProject\\PCBProject\\新建文本文档.txt");
InputStream in=new FileInputStream(file);
// String str=IOUtils.toString(in,"utf-8");
StringWriter writer = new StringWriter();
IOUtils.copy(in, writer, "utf-8");
String str = writer.toString();
System.out.println(str);
}
}