ByteBuffer和String的互相轉換
阿新 • • 發佈:2019-01-08
import java.nio.ByteBuffer; import java.nio.CharBuffer; import java.nio.charset.Charset; import java.nio.charset.CharsetDecoder; public class TopNTool { /** * String 轉換 ByteBuffer * @param str * @return */ public static ByteBuffer getByteBuffer(String str) {return ByteBuffer.wrap(str.getBytes()); } /** * ByteBuffer 轉換 String * @param buffer * @return */ public static String getString(ByteBuffer buffer) { Charset charset = null; CharsetDecoder decoder = null; CharBuffer charBuffer= null; try { charset = Charset.forName("UTF-8"); decoder = charset.newDecoder(); // charBuffer = decoder.decode(buffer);//用這個的話,只能輸出來一次結果,第二次顯示為空 charBuffer = decoder.decode(buffer.asReadOnlyBuffer()); return charBuffer.toString(); }catch (Exception ex) { ex.printStackTrace(); return ""; } } }