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Re:求教高手啊(ArrayIndexOutOfBoundsException) [Re:jfs771]

undefined

发贴: 22
积分: 3

于 2005-05-12 19:59

public class Attributes {
  private byte type;
  private byte length;
  private byte[] value = null; //不定长

  public Attributes(int typ, String value) {
    this.type = (byte) typ;

    this.value = value.getBytes();
  }

  int getlengths() {
    return value.length + 2;
  }

  byte[] tobyte() {

    byte[] newbyte = new byte[this.getlengths()];
    newbyte[0] = this.type;
    newbyte[1] = this.length;
    for (int i = 0; i < this.getlengths() - 2; i++) {
      //System.out.println(this.value[i]);
      newbyte[i + 2] = this.value[i];
    }
    return newbyte;
  }
  public static void main(String [] args)
  {
    Attributes att= new Attributes(5,"abcd");
    System.out.println(att.tobyte());
  }
}

public class DAFrame {
  private byte code;
  private byte identifier;
  private byte length[] = new byte[2];
  private byte Authenticator[] = new byte[16];
  private Attributes attributes;

  public DAFrame(int code, int i, byte[] authen, Attributes attri) {
    this.code = (byte) code;
    this.identifier = (byte) i;
    this.Authenticator = authen;
    this.attributes = attri;
    this.setlength();
  }

  void setlength() {
    //System.out.println("$$$$$$$$$$$$$$");
    //System.out.println((byte) this.getlength());
    this.length[0] = (byte) this.getlength();

    int length1 = this.getlength();
    length1 = length1 / 256 ;
    this.length[1] = (byte) length1;
  }

  int getlength() {
    //System.out.println(new Attributes(5,"abc").getlengths());
    return 20 + this.attributes.getlengths();
  }

  byte[] tobyte() {
    byte[] newbyte = new byte[this.getlength()];
    newbyte[0] = this.code;
    newbyte[1] = this.identifier;
    newbyte[2] = this.length[0];
    newbyte[3] = this.length[1];
    for (int i = 0; i < this.Authenticator.length; i++) {
      newbyte[i + 4] = this.Authenticator[i];
    } //错误处
    byte[] attribyte = this.attributes.tobyte();
    for (int i = 0; i < attribyte.length; i++) {
      newbyte[i + 20] = attribyte[i];
    }
    return newbyte;
  }
  public static void main(String [] args)
  {
    byte [] b= new byte[3];
    b[0]='a';
    b[1]='b';
    b[2]='c';
    DAFrame daf = new DAFrame(5,12,b,new Attributes(22,"abc"));
    //daf.getlength();
    byte[] by=daf.tobyte();
    for(int i=0;i<by.length;i++)
    {
      System.out.print(by[i]+" * ");

    }
    //Attributes att= new Attributes(5,"abc");
    //System.out.println(att.getlengths());
  }

}

我给调好了,输出结果:

5 * 12 * 25 * 0 * 97 * 98 * 99 * 0 * 0 * 0 * 0 * 0 * 0 * 0 * 0 * 0 * 0 * 0 * 0 * 0 * 22 * 0 * 97 * 98 * 99 *

话题树型展开

人气	标题	作者	字数	发贴时间
9196	求教高手啊(ArrayIndexOutOfBoundsException)	jfs771	1979	2005-04-19 14:59
7438	Re:求教高手啊。。。。。	bluepure	323	2005-04-19 17:30
7498	Re:求教高手啊。。。。。	jfs771	221	2005-04-19 19:14
7374	Re:求教高手啊(ArrayIndexOutOfBoundsException)	xiaoshitou	93	2005-05-11 15:56
7962	Re:求教高手啊(ArrayIndexOutOfBoundsException)	undefined	2518	2005-05-12 19:59
9439	Re:求教高手啊(ArrayIndexOutOfBoundsException)	undefined	571	2005-05-12 20:10
7978	Re:求教高手啊(ArrayIndexOutOfBoundsException)	jfs771	31	2005-05-18 10:37

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