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我正在構建一個需要使用post方法與服務器連接並獲取結果的應用程序。我需要服務器響應的特定部分並將其轉換爲不同類型的圖元（從String到short，int，byte等）Java短原始類型問題
所以基本上我需要得到的響應代碼的一部分，並將其轉換來看看是否有一個enum元素與此值。但問題是，響應返回值001，並將其轉換爲短，並將其傳遞給我的getByValue(int)方法在enum，它說我沒有元素與001.如果我打印short值，我得到1。
這裏是一個代碼示例我使用的：
httppost.setEntity(new UrlEncodedFormEntity(postParameters));
HttpResponse response = httpclient.execute(httppost);
Log.v("Response ","Status line : "+ response.getStatusLine().toString());
String responseBody = EntityUtils.toString(response.getEntity()); //response
Log.v("Response ","Response : "+ responseBody);
int objectIdentificator = Integer.parseInt(responseBody.substring(0,32));
Log.v("Response ","Object Identificator (LONGINT) : "+ responseBody.substring(0,32));
Log.v("Response ","Object Identificator (LONGINT) : "+ objectIdentificator);
String type = responseBody.substring(32,35);
Log.v("Response ","TYPE (UNSIGNED BYTE) : "+ type);
short pType = Short.parseShort(type); // short
Log.v("Response ","TYPE (UNSIGNED BYTE) : "+ pType);
String operation = responseBody.substring(35,38); //
short operationType = Short.parseShort(operation);
Log.v("Response ","OPERATION (UNSIGNED BYTE) : "+ operation);
Log.v("Response ","OPERATION (UNSIGNED BYTE) : "+ operationType);
String objectId = responseBody.substring(38, 70);
Log.v("Response ","UID (CHAR, length 32) : "+ objectId);
int id = Integer.parseInt(responseBody.substring(70, 102));
Log.v("Response ","ID (LONGINT) : "+ responseBody.substring(70, 102));
Log.v("Response ","ID (LONGINT) : "+ id);
String size = responseBody.substring(102,134);
Log.v("Response ","Data Size (LONGINT) : "+ size);
String hash = responseBody.substring(134,166);
Log.v("Response ","Data Hash (CHAR, length 32 : "+ hash);
String dType = responseBody.substring(166,169);
Log.v("Response ","Data Type (UNSIGNED BYTE) : "+ dType);
short dataType = Short.parseShort(dType);
Log.v("Response ","Data Type (UNSIGNED BYTE) : "+ dataType);
String data = responseBody.substring(169, responseBody.length());
Log.v("Response ","Data (CHAR, any length, in BASE64) : "+ data);
byte[] first = Base64.decode(data);
String string = new String(first, "UTF-8");
Log.v("Response ","BASE 64 : "+ string);
RPCPacket packet = new RPCPacket( objectIdentificator,
RPCPacketType.getPacketTypeByValue(pType),
RPCOperationType.getByValue(Integer.parseInt(operation)),
objectId,
id,
Integer.parseInt(size),
hash,
RPCPacketDataType.getByValue(dataType),
first
);
Log.v("PacketType", "RPCPacketType : "+packet.packetTypeToStr(RPCPacketType.getPacketTypeByValue(pType)));
而且packetTypeToStr代碼：
public String packetTypeToStr(RPCPacketType type){
String str=null;
switch(type){
case ST_OBJECT_TYPE_INFO_START:
str = "ST_OBJECT_TYPE_INFO_START";
break;
case ST_OBJECT_TYPE_INFO_ERROR:
str = "ST_OBJECT_TYPE_INFO_ERROR";
break;
case ST_OBJECT_TYPE_COLLECTION:
str = "ST_OBJECT_TYPE_COLLECTION";
break;
case ST_OBJECT_TYPE_CATEGORY:
str = "ST_OBJECT_TYPE_CATEGORY";
break;
case ST_OBJECT_TYPE_CARD:
str = "ST_OBJECT_TYPE_CARD";
break;
case ST_OBJECT_TYPE_MESSAGE:
str = "ST_OBJECT_TYPE_MESSAGE";
break;
case ST_OBJECT_TYPE_GENRE:
str = "ST_OBJECT_TYPE_GENRE";
break;
case ST_OBJECT_TYPE_TAG:
str = "ST_OBJECT_TYPE_TAG";
break;
case ST_OBJECT_TYPE_USER:
str = "ST_OBJECT_TYPE_USER";
break;
case ST_OBJECT_TYPE_MEDIA_COLLECTION:
str = "ST_OBJECT_TYPE_MEDIA_COLLECTION";
break;
case ST_OBJECT_TYPE_MEDIA_CATEGORY:
str = "ST_OBJECT_TYPE_MEDIA_CATEGORY";
break;
case ST_OBJECT_TYPE_MEDIA_CARD:
str = "ST_OBJECT_TYPE_MEDIA_CARD";
break;
case ST_OBJECT_TYPE_MEDIA_TAG:
str = "ST_OBJECT_TYPE_MEDIA_TAG";
break;
case ST_OBJECT_TYPE_INFO_END:
str = "ST_OBJECT_TYPE_INFO_END";
break;
case ST_OBJECT_TYPE_CARDSTATS_CATEGORY:
str = "ST_OBJECT_TYPE_CARDSTATS_CATEGORY";
break;
case ST_OBJECT_TYPE_CONTENT:
str = "ST_OBJECT_TYPE_CONTENT";
break;
case ST_OBJECT_TYPE_MEDIA_COLLECTION_BUTTON:
str = "ST_OBJECT_TYPE_MEDIA_COLLECTION_BUTTON";
break;
default:
str ="UNKNOWN "+type;
break;
}
return str;
}
和異常：
09-08 09:53:08.744: WARN/System.err(2509): java.lang.IllegalArgumentException: no datatype with 001 exists
09-08 09:53:08.754: WARN/System.err(2509): at com.stampii.stampii.comm.rpc.RPCCommucatorDefines$RPCOperationType.getByValue(RPCCommucatorDefines.java:34)
09-08 09:53:08.754: WARN/System.err(2509): at com.stampii.stampii.user.UserLogin$2.onClick(UserLogin.java:122)
09-08 09:53:08.754: WARN/System.err(2509): at android.view.View.performClick(View.java:2408)
09-08 09:53:08.754: WARN/System.err(2509): at android.view.View$PerformClick.run(View.java:8817)
09-08 09:53:08.754: WARN/System.err(2509): at android.os.Handler.handleCallback(Handler.java:587)
09-08 09:53:08.754: WARN/System.err(2509): at android.os.Handler.dispatchMessage(Handler.java:92)
09-08 09:53:08.754: WARN/System.err(2509): at android.os.Looper.loop(Looper.java:144)
09-08 09:53:08.754: WARN/System.err(2509): at android.app.ActivityThread.main(ActivityThread.java:4937)
09-08 09:53:08.754: WARN/System.err(2509): at java.lang.reflect.Method.invokeNative(Native Method)
09-08 09:53:08.754: WARN/System.err(2509): at java.lang.reflect.Method.invoke(Method.java:521)
09-08 09:53:08.754: WARN/System.err(2509): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
09-08 09:53:08.764: WARN/System.err(2509): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
09-08 09:53:08.764: WARN/System.err(2509): at dalvik.system.NativeStart.main(Native Method)
RPCOperationType代碼：
public enum RPCOperationType {
O_CREATE(1),
O_UPDATE(2),
O_DELETE(3);
private int value;
private intvalue1;
private RPCOperationType(int i){
this.value=i;
}
public int getNumericType(){
return value;
}
public static RPCOperationType getByValue(int i) {
for(RPCOperationType dt : RPCOperationType.values()) {
if(dt.value1 == i) {
return dt;
}
}
throw new IllegalArgumentException("no datatype with " + i + " exists");
}
}
所以，任何建議如何解決這個問題，而不改變ID在枚舉？ 在此先感謝！
你已經向我們展示了枚舉的所有內容 - 例如你如何找到基於ID的枚舉值。在我看來，這是重要的一點... –
我更新了我的問題 –
你是說'拋出IllegalArgumentException'嗎？它是否帶有消息「沒有與001存在的數據類型」？這不太合理，因爲整數不會以這種方式打印。你能準確地告訴我們你看到了什麼嗎？ –