2013-06-19 43 views
1

我想從Galery中選取圖片並將其轉換爲base64字符串以插入數據庫。但是這個字符串有空字符,非常長。當我在asp.net中做了同樣的過程時,解碼後的字符串並不長,並且它沒有空字符。由於返回非常長的字符串,我得到錯誤。我怎樣才能做到這一點 ?Android Image到Base64字符串問題

Bitmap bm = BitmapFactory.decodeFile(picturePath); 
ByteArrayOutputStream baos = new ByteArrayOutputStream(); 
bm.compress(Bitmap.CompressFormat.JPEG, 100, baos); 
byte[] b = baos.toByteArray(); 

imageStr = Base64.encodeToString(b, Base64.DEFAULT); 

imageStr返回這樣的:壓縮會大大降低輸出大小時

/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEB 

AQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQH/2wBDAQEBAQEBAQEBAQEBAQEBAQEBAQEB 

AQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQH/wAARCAMgAlUDASIA 

AhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/8QAtRAAAgEDAwIEAwUFBAQA 

AAF9AQIDAAQRBRIhMUEGE1FhByJxFDKBkaEII0KxwRVS0fAkM2JyggkKFhcYGRolJicoKSo0NTY3 
ODk6Q0RFRkdISUpTVFVWV1hZWmNkZWZnaGlqc3R1dnd4eXqDhIWGh4iJipKTlJWWl5iZmqKjpKWm 
p6ipqrKztLW2t7i5usLDxMXGx8jJytLT1NXW19jZ2uHi4+Tl5ufo6erx8vP09fb3+Pn6/8QAHwEA 
AwEBAQEBAQEBAQAAAAAAAAECAwQFBgcICQoL/8QAtREAAgECBAQDBAcFBAQAAQJ3AAECAxEEBSEx 
BhJBUQdhcRMiMoEIFEKRobHBCSMzUvAVYnLRChYkNOEl8RcYGRomJygpKjU2Nzg5OkNERUZHSElK 
U1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6goOEhYaHiImKkpOUlZaXmJmaoqOkpaanqKmqsrO0tba3 
uLm6wsPExcbHyMnK0tPU1dbX2Nna4uPk5ebn6Onq8vP09fb3+Pn6/9oADAMBAAIRAxEAPwD+C22l 
xcRmPnyLgYP/AAJsdTzxnH168GtAS+bHF5XkeVn/AI9ueu5hkjj0Ocnv0JJNYQVvL6f8fH/LzkdA 
W9+vJzz/ABd8EFVZvKn8ofyz1b3wcjHbsOpPPkJXv5WT8ruS17L3fXVaPVnjrDQd/df/AJM7/E/5 
tXZX7Xbs202a6y8RfuZug5tu/Ljtx0HHsW5yCa3Z5fsv2jyp/wB79lH+jc+r8j2wF9+nGSc8jDNN 
FkRTGGMnnn3bnj6Dj6jOCCZRckTExdOAM4z1fnrx93A7dOuDlAdCI/vT2p8mLjn7IexYckn079QS 
eMkGrgMPlXH2Sf8AfW2LX7Ng88uM8E9c8/j3Ga5W2vpvKPHT3PHJ9j2H8+4Obj3vWcTelp9mz7uO 
4+nT3wPvUHP7D+/6e7/9t/XdnSC5mtbg/ZJv9E9yPVvb26fzAGbltcT+YZpbufzfso/0rJ/tDqw9 
D6fhzyeTXO20vWXyf+Xodvd+n6k/hz1oiuoYc+V/qefzBb3445/E5BA5A+pef4f/AG50cV15skX/ 
AC8f6ULvNtn1ODjJOOPU89+CDdeWGWIzf6iHj6cl+2e4HT0xxkYPOWTW8shmP7ibj/RcnsR15yPU 
H6g5IJqWyuFAP778Mk/bOvueuM9fzOa7frS7P7l/8mc50j/6ozTTwT9B+Rcfrnng9uOc1TspfNia 
ylhg7f8AHz2wW/mMcc9wckCs0XkktvF5U0Hkk47+r+h+pwe3rhsaVs1sby048/7Pai66n+84B5P+ 
TuBBIzR9aXZ/cv8A5MCR7W6wfKm8ia3uhdXfTnlgAecfwnjvjqCDmIeZ5UU+ftEvFr0HTLZ+vQH/ 
AL6zyMknurOKQwxTduvXu3X5ucj8euckcLDLZfuvK8j/AEi0Hvn73qeM46dsDnrnq9s/L/wF/wDy 
wr2FT+WP3R/+TJokuhbxCZv+PfFr0POo/P7f7vf05yDVIOsVxP8Aup/tdvj7IeeeWBPT1APP5g/e 
04pYfMihEx863x/Nx68Z6D/gXXk1CIvJe482e3/5h3/oTj1HTb+RHXbk8v1VfzP71/8AIkkLjysj 
MH5e7dj64HPbkZORmn+5x287P2n/AMe6euM/hj3reEUMUkU37ji6H2U23Tr6/rnv0PPNZotZ4omm 
86CAcfara2+rZ4x7L+mTkDNgZo877MfK/wBdx+WWz/T3z1/hqa2/dSRf89cDPUd2A/kT9M8HPI/7 
25tIMwTw4/5duO7D16kgkde/UnkcTyyH99B/pHT0PL+/HQkjtwO7EgGlOiyuZvOE5GPsvX1bHG7P 

..... 

wxNwReVbRQ59Me+C/vxwD1PU98UAZQihi8r9z++uCMdOeT0z0HGevOepOMxRRfu5/Kmn877UP5nO 
B64C5/4F0JOdJx5sbf8APaf/AJdrbHqw7j0GevQDkHOYYuh82H9907dAW9uBxgfjkkmuc9Aje1/0 
eL/nt9qGe3Qn69B1/AdcGgRfu4skTw/0y368g9evBJIq4JR5TTS/v/s2PbPLjnn/AHcZ7leeHJUQ 
zeXF+Hr6uPXt39yOmMnoPPOeFr5Xlfucw5GOvq+O/cevTHqTkeGGV/8AU56foW9//wBXOcgcbEX2 
OIXE0sPnzW+PsuMdCXH17HA5OT1OM1TeI+ZcTfT16kv09s9O/XkkFqAA58m4zzDb47d9x7H6D8T1 
4LVThin/AHUNpD5/T/tzGX9/YZ+o9VFXFi820v8AP7ib5f8Aj5z/AHj654+U57fj1BF5uZvJ8jGB 
j6l+evbHTPGTyck1z1i6 

回答

0

Base64.NO_WRAP使用旗剝離換行符

使用90質量。輸出的長度將是字節數組長度的4/3倍

+0

感謝您的關注。這就是我想要的。 –