《java----实现汉字转换为对应的Unicode码》---批量处理，将要处理的汉字放在chines.txt文件中
import java.io.*;class GetChineseCode{public static void main(String[] args) throws IOException{//创建字符写入流对象。FileWriter fw = new FileWriter("chinese-java.txt");FileReader fr = new FileReader("chinese.txt");BufferedReader bufr = new BufferedReader(fr);BufferedWriter bufw = new BufferedWriter(fw);int ch = 0;while ((ch = bufr.read()) != -1){if (Integer.toHexString(ch).length() == 4){bufw.write("\\u"+Integer.toHexString(ch)+"");}}bufw.close();bufr.close();}}