java中byte,String,InputStream之间的转换
[html]<pre class="html" name="code">import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
public class InputStreamUtils {
final static int BUFFER_SIZE = 4096;
/**
* 将InputStream转换成String
* @param in InputStream
* @return String
* @throws Exception
*
*/
public static String InputStreamTOString(InputStream in) throws Exception{
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;
return new String(outStream.toByteArray(),"ISO-8859-1");
}
/**
* 将InputStream转换成某种字符编码的String
* @param in
* @param encoding
* @return
* @throws Exception
*/
public static String InputStreamTOString(InputStream in,String encoding) throws Exception{
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;
return new String(outStream.toByteArray(),"ISO-8859-1");
}
/**
* 将String转换成InputStream
* @param in
* @return
* @throws Exception
*/
public static InputStream StringTOInputStream(String in) throws Exception{
ByteArrayInputStream is = new ByteArrayInputStream(in.getBytes("ISO-8859-1"));
return is;
}
/**
* 将InputStream转换成byte数组
* @param in InputStream
* @return byte[]
* @throws IOException
*/
public static byte[] InputStreamTOByte(InputStream in) throws IOException{
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;
return outStream.toByteArray();
}
/**
* 将byte数组转换成InputStream
* @param in
* @return
* @throws Exception
*/
public static InputStream byteTOInputStream(byte[] in) throws Exception{
ByteArrayInputStream is = new ByteArrayInputStream(in);
return is;
}
/**
* 将byte数组转换成String
* @param in
* @return
* @throws Exception
*/ www.zzzyk.com
public static String byteTOString(byte[] in) throws Exception{
InputStream is = byteTOInputStream(in);
return InputStreamTOString(is);
}
}
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补充：软件开发 , Java ,
