Android(安卓)InputStream与String,Byte之间互转
16lz
2022-04-20
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); }}
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