| 提交 | 用户 | age | ||
| 826b66 | 1 | package com.hx.util; |
| C | 2 | |
| 3 | import java.io.ByteArrayInputStream; | |
| 4 | import java.io.ByteArrayOutputStream; | |
| 5 | import java.io.File; | |
| 6 | import java.io.FileInputStream; | |
| 7 | import java.io.FileNotFoundException; | |
| 8 | import java.io.FileOutputStream; | |
| 9 | import java.io.IOException; | |
| 10 | import java.io.InputStream; | |
| 11 | import java.io.UnsupportedEncodingException; | |
| 12 | ||
| 13 | public class StreamUtils { | |
| 14 | ||
| 15 | final static int BUFFER_SIZE = 4096; | |
| 16 | /** | |
| 17 | * ��InputStreamת����String | |
| 18 | * | |
| 19 | * @param in | |
| 20 | * InputStream | |
| 21 | * @return String | |
| 22 | * @throws Exception | |
| 23 | * | |
| 24 | */ | |
| 25 | public static String InputStreamTOString(InputStream in) { | |
| 26 | ||
| 27 | ByteArrayOutputStream outStream = new ByteArrayOutputStream(); | |
| 28 | byte[] data = new byte[BUFFER_SIZE]; | |
| 29 | String string = null; | |
| 30 | int count = 0; | |
| 31 | try { | |
| 32 | while ((count = in.read(data, 0, BUFFER_SIZE)) != -1) | |
| 33 | outStream.write(data, 0, count); | |
| 34 | } catch (IOException e) { | |
| 35 | e.printStackTrace(); | |
| 36 | } | |
| 37 | ||
| 38 | data = null; | |
| 39 | try { | |
| 40 | string = new String(outStream.toByteArray(), "UTF-8"); | |
| 41 | } catch (UnsupportedEncodingException e) { | |
| 42 | e.printStackTrace(); | |
| 43 | } | |
| 44 | return string; | |
| 45 | } | |
| 46 | ||
| 47 | /** | |
| 48 | * ��InputStreamת����ij���ַ�����String | |
| 49 | * | |
| 50 | * @param in | |
| 51 | * @param encoding | |
| 52 | * @return | |
| 53 | * @throws Exception | |
| 54 | */ | |
| 55 | public static String InputStreamTOString(InputStream in, String encoding) { | |
| 56 | String string = null; | |
| 57 | ByteArrayOutputStream outStream = new ByteArrayOutputStream(); | |
| 58 | byte[] data = new byte[BUFFER_SIZE]; | |
| 59 | int count = -1; | |
| 60 | try { | |
| 61 | while ((count = in.read(data, 0, BUFFER_SIZE)) != -1) | |
| 62 | outStream.write(data, 0, count); | |
| 63 | } catch (IOException e) { | |
| 64 | e.printStackTrace(); | |
| 65 | } | |
| 66 | ||
| 67 | data = null; | |
| 68 | try { | |
| 69 | string = new String(outStream.toByteArray(), encoding); | |
| 70 | } catch (UnsupportedEncodingException e) { | |
| 71 | e.printStackTrace(); | |
| 72 | } | |
| 73 | return string; | |
| 74 | } | |
| 75 | ||
| 76 | /** | |
| 77 | * ��Stringת����InputStream | |
| 78 | * | |
| 79 | * @param in | |
| 80 | * @return | |
| 81 | * @throws Exception | |
| 82 | */ | |
| 83 | public static InputStream StringTOInputStream(String in) throws Exception { | |
| 84 | ||
| 85 | ByteArrayInputStream is = new ByteArrayInputStream(in.getBytes("UTF-8")); | |
| 86 | return is; | |
| 87 | } | |
| 88 | ||
| 89 | /** | |
| 90 | * ��Stringת����InputStream | |
| 91 | * | |
| 92 | * @param in | |
| 93 | * @return | |
| 94 | * @throws Exception | |
| 95 | */ | |
| 96 | public static byte[] StringTObyte(String in) { | |
| 97 | byte[] bytes = null; | |
| 98 | try { | |
| 99 | bytes = InputStreamTOByte(StringTOInputStream(in)); | |
| 100 | } catch (IOException e) { | |
| 101 | } catch (Exception e) { | |
| 102 | e.printStackTrace(); | |
| 103 | } | |
| 104 | return bytes; | |
| 105 | } | |
| 106 | ||
| 107 | /** | |
| 108 | * ��InputStreamת����byte���� | |
| 109 | * | |
| 110 | * @param in | |
| 111 | * InputStream | |
| 112 | * @return byte[] | |
| 113 | * @throws IOException | |
| 114 | */ | |
| 115 | public static byte[] InputStreamTOByte(InputStream in) throws IOException { | |
| 116 | ||
| 117 | ByteArrayOutputStream outStream = new ByteArrayOutputStream(); | |
| 118 | byte[] data = new byte[BUFFER_SIZE]; | |
| 119 | int count = -1; | |
| 120 | while ((count = in.read(data, 0, BUFFER_SIZE)) != -1) | |
| 121 | outStream.write(data, 0, count); | |
| 122 | ||
| 123 | data = null; | |
| 124 | return outStream.toByteArray(); | |
| 125 | } | |
| 126 | ||
| 127 | ||
| 128 | /** | |
| 129 | * ��byte����ת����InputStream | |
| 130 | * | |
| 131 | * @param in | |
| 132 | * @return | |
| 133 | * @throws Exception | |
| 134 | */ | |
| 135 | public static InputStream byteTOInputStream(byte[] in) throws Exception { | |
| 136 | ||
| 137 | ByteArrayInputStream is = new ByteArrayInputStream(in); | |
| 138 | return is; | |
| 139 | } | |
| 140 | ||
| 141 | /** | |
| 142 | * ��byte����ת����String | |
| 143 | * | |
| 144 | * @param in | |
| 145 | * @return | |
| 146 | * @throws Exception | |
| 147 | */ | |
| 148 | public static String byteTOString(byte[] in) { | |
| 149 | ||
| 150 | InputStream is = null; | |
| 151 | try { | |
| 152 | is = byteTOInputStream(in); | |
| 153 | } catch (Exception e) { | |
| 154 | e.printStackTrace(); | |
| 155 | } | |
| 156 | return InputStreamTOString(is, "UTF-8"); | |
| 157 | } | |
| 158 | /** | |
| 159 | * ��byte����ת����String | |
| 160 | * | |
| 161 | * @param in | |
| 162 | * @return | |
| 163 | * @throws Exception | |
| 164 | */ | |
| 165 | public static String getString(String in) { | |
| 166 | ||
| 167 | String is = null; | |
| 168 | try { | |
| 169 | is = byteTOString(StringTObyte(in)); | |
| 170 | } catch (Exception e) { | |
| 171 | e.printStackTrace(); | |
| 172 | } | |
| 173 | return is; | |
| 174 | } | |
| 175 | ||
| 176 | // InputStream ת����byte[] | |
| 177 | public byte[] getBytes(InputStream is) throws IOException { | |
| 178 | ||
| 179 | ByteArrayOutputStream baos = new ByteArrayOutputStream(); | |
| 180 | byte[] b = new byte[BUFFER_SIZE]; | |
| 181 | int len = 0; | |
| 182 | ||
| 183 | while ((len = is.read(b, 0, BUFFER_SIZE)) != -1) { | |
| 184 | baos.write(b, 0, len); | |
| 185 | } | |
| 186 | ||
| 187 | baos.flush(); | |
| 188 | ||
| 189 | byte[] bytes = baos.toByteArray(); | |
| 190 | ||
| 191 | System.out.println(new String(bytes)); | |
| 192 | ||
| 193 | return bytes; | |
| 194 | } | |
| 195 | /** | |
| 196 | * ����ļ�·�������ļ����������� | |
| 197 | * ���ֽ�Ϊ��λ���� unicode �� | |
| 198 | * @return | |
| 199 | */ | |
| 200 | public static FileInputStream getFileInputStream(String filepath) { | |
| 201 | FileInputStream fileInputStream = null; | |
| 202 | try { | |
| 203 | fileInputStream = new FileInputStream(filepath); | |
| 204 | } catch (FileNotFoundException e) { | |
| 205 | System.out.print("������Ϣ:�ļ�������"); | |
| 206 | e.printStackTrace(); | |
| 207 | } | |
| 208 | return fileInputStream; | |
| 209 | } | |
| 210 | /** | |
| 211 | * ����ļ������ļ����������� | |
| 212 | * ���ֽ�Ϊ��λ���� unicode �� | |
| 213 | * @return | |
| 214 | */ | |
| 215 | public static FileInputStream getFileInputStream(File file) { | |
| 216 | FileInputStream fileInputStream = null; | |
| 217 | try { | |
| 218 | fileInputStream = new FileInputStream(file); | |
| 219 | } catch (FileNotFoundException e) { | |
| 220 | System.out.print("������Ϣ:�ļ�������"); | |
| 221 | e.printStackTrace(); | |
| 222 | } | |
| 223 | return fileInputStream; | |
| 224 | } | |
| 225 | /** | |
| 226 | * ����ļ������ļ���������� | |
| 227 | * ���ֽ�Ϊ��λ���� unicode �� | |
| 228 | * @param file | |
| 229 | * @param append true:�ļ����ӷ�ʽ��,false:��ԭ�ļ������� | |
| 230 | * @return | |
| 231 | */ | |
| 232 | public static FileOutputStream getFileOutputStream(File file,boolean append) { | |
| 233 | FileOutputStream fileOutputStream = null; | |
| 234 | try { | |
| 235 | fileOutputStream = new FileOutputStream(file,append); | |
| 236 | } catch (FileNotFoundException e) { | |
| 237 | System.out.print("������Ϣ:�ļ�������"); | |
| 238 | e.printStackTrace(); | |
| 239 | } | |
| 240 | return fileOutputStream; | |
| 241 | } | |
| 242 | /** | |
| 243 | * ����ļ�·�������ļ���������� | |
| 244 | * ���ֽ�Ϊ��λ���� unicode �� | |
| 245 | * @param append true:�ļ����ӷ�ʽ��,false:��ԭ�ļ������� | |
| 246 | * @return | |
| 247 | */ | |
| 248 | public static FileOutputStream getFileOutputStream(String filepath,boolean append) { | |
| 249 | FileOutputStream fileOutputStream = null; | |
| 250 | try { | |
| 251 | fileOutputStream = new FileOutputStream(filepath,append); | |
| 252 | } catch (FileNotFoundException e) { | |
| 253 | System.out.print("������Ϣ:�ļ�������"); | |
| 254 | e.printStackTrace(); | |
| 255 | } | |
| 256 | return fileOutputStream; | |
| 257 | } | |
| 258 | ||
| 259 | public static File getFile(String filepath) { | |
| 260 | return new File(filepath); | |
| 261 | } | |
| 262 | public static ByteArrayOutputStream getByteArrayOutputStream() { | |
| 263 | return new ByteArrayOutputStream(); | |
| 264 | } | |
| 265 | ||
| 266 | } | |
