* bufferedreader轉換成string
* 注意:流關閉需要自行處理
* @param reader
* @return string
* @throws ioexception
public static string bufferedreader2string(bufferedreader reader) throws ioexception else {
out.write(data, off, len);
off += len;
datalen -= len;
// 重新整理緩衝區
out.flush();
* 字串轉換成char陣列
* @param str
* @return char
public static char str2chararray(string str) {
if(null == str) return null;
return str.tochararray();
public static inputstream string2inputstream(string str) {
return new bytearrayinputstream(str.getbytes());
* inputstream轉換成byte
* 注意:流關閉需要自行處理
* @param in
* @return byte
* @throws exception
public static byte inputstreamtobyte(inputstream in) throws ioexception{
int buffer_size = 4096;
bytearrayoutputstream outstream = new bytearrayoutputstream();
byte data = new byte[buffer_size];
int count = -1;
while((count = in.read(data,0,buffer_size)) != -1)
outstream.write(data, 0, count);
data = null;
byte outbyte = outstream.tobytearray();
outstream.close();
return outbyte;
* inputstream轉換成string
* 注意:流關閉需要自行處理
* @param in
* @param encoding 編碼
* @return string
* @throws exception
public static string inputstreamtostring(inputstream in,string encoding) throws ioexception{
return new string(inputstreamtobyte(in),encoding);
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