读取 Azure blob乱码

[千百元]

public static void getBlobs() {
		try {
			CloudStorageAccount storageAccount = CloudStorageAccount.parse(storageConnectionString);
			CloudBlobClient blobClient = storageAccount.createCloudBlobClient();
//			CloudBlobContainer container = blobClient.getContainerReference("test");
			CloudBlobContainer container = blobClient.getContainerReference("courtnew");

			int i=0;
			// 名字前缀
			for (ListBlobItem blobItem : container.listBlobs("a", true)) {
				
				i++;
				System.out.println("----------------------------------------"+i);
				
				CloudBlockBlob blob=(CloudBlockBlob) blobItem;
				System.out.println("---------"+blob.downloadText());
				
				String text=blob.downloadText();
				
				if(!StringUtils.isNull(text)){
					String s=StringUtils.getRightStringFromMessy(text);
					System.out.println("-------------------- "+s);
				}
			}
			
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

处理乱码方法

public static String[] ERCOEDING = { "й", "෨", "Ժ", "ۼ", "ҩ", "ල", "ɷ", "ص", "δ", "ġ", "Ϊ", "ط", "Ϣ", "ȡ", "Ӫ", "ã",
				""};
		
		public static String[] CHARSET = { "utf-8", "gbk", "gb2312", "gb18030", "big5" };
		
		
		
		/**
		 * 将乱码转化为正常的字符
		 * @param str
		 * @param strEncode
		 * @return
		 * @throws UnsupportedEncodingException   
		 * @return String  
		 * @author liuming
		 * @date 2015年12月17日  下午3:41:37
		 */
		public static String  getRightStringFromMessy(String str ) throws UnsupportedEncodingException{  
			
			String temp="";
			if(StringUtils.isNull(str)){
				return "";
			}
			int i=0;
			for (String val : CHARSET) { // 匹配不同编码格式
				temp=convertionString(  str,  val);
				boolean garbled = getErrorCode(str);// 判断编码是否错误
				if(garbled==true){
					return temp;
				}
				
				if (garbled == false) {
					i++;
					if (i == 5) {
						return "乱码";
					}
					continue;
				}
			}
	        return str;
	       
	    } 

[千百元]

读取到的，有正常的，也有乱码， 明明有处理过乱码呀。汗。 写入时肯定没写乱码，因为写入前有做过处理