java中byte,String,InputStream之间的转换 .
本文共 2249 字,大约阅读时间需要 7 分钟。
- import java.io.ByteArrayInputStream;
- import java.io.ByteArrayOutputStream;
- import java.io.IOException;
- import java.io.InputStream;
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- public class InputStreamUtils {
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- final static int BUFFER_SIZE = 4096;
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- public static String InputStreamTOString(InputStream in) throws Exception{
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- 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);
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- data = null;
- return new String(outStream.toByteArray(),"ISO-8859-1");
- }
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- public static String InputStreamTOString(InputStream in,String encoding) throws Exception{
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- 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);
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- data = null;
- return new String(outStream.toByteArray(),"ISO-8859-1");
- }
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- public static InputStream StringTOInputStream(String in) throws Exception{
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- ByteArrayInputStream is = new ByteArrayInputStream(in.getBytes("ISO-8859-1"));
- return is;
- }
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- public static byte[] InputStreamTOByte(InputStream in) throws IOException{
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- 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);
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- data = null;
- return outStream.toByteArray();
- }
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- public static InputStream byteTOInputStream(byte[] in) throws Exception{
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- ByteArrayInputStream is = new ByteArrayInputStream(in);
- return is;
- }
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- public static String byteTOString(byte[] in) throws Exception{
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- InputStream is = byteTOInputStream(in);
- return InputStreamTOString(is);
- }
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- }
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