本文将介绍InputStream与String,Byte之间的相互转换。以代码来说明:
- import java.io.ByteArrayInputStream;
- import java.io.ByteArrayOutputStream;
- import java.io.IOException;
- import java.io.InputStream;
- /**
- *
- * @author Andy.Chen
- * @mail Chenjunjun.ZJ@gmail.com
- *
- */
- 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
- */
- public static String byteTOString(byte[] in) throws Exception{
- InputStream is = byteTOInputStream(in);
- return InputStreamTOString(is);
- }
- }