Here you can find the source of stream2String(InputStream is, int maxLength)
| Parameter | Description |
|---|---|
| is | input stream |
| maxLength | max number of bytes to read from "is". If this is -1, we read everything. |
@Deprecated public static String stream2String(InputStream is, int maxLength) throws IOException
//package com.java2s; /**/*from w w w . j a v a 2 s.c o m*/ * Copyright (c) 2000, Google Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.io.IOException; import java.io.InputStream; import java.io.StringWriter; public class Main { /** * Read a String of up to maxLength bytes from an InputStream. * * <p>Note that this method uses the default platform encoding, and expects * that encoding to be single-byte, which is not always the case. Its use * is discouraged. For reading the entire stream (maxLength == -1) you can use: * <pre> * CharStreams.toString(new InputStreamReader(is, Charsets.ISO_8859_1)) * </pre> * {@code CharStreams} is in the {@code com.google.common.io} package. * * <p>For maxLength >= 0 a literal translation would be * <pre> * CharStreams.toString(new InputStreamReader( * new LimitInputStream(is, maxLength), Charsets.ISO_8859_1)) * </pre> * For multi-byte encodings that is broken because the limit could end in * the middle of the character--it would be better to limit the reader than * the underlying stream. * * @param is input stream * @param maxLength max number of bytes to read from "is". If this is -1, we * read everything. * * @return String up to maxLength bytes, read from "is" * @deprecated see the advice above */ @Deprecated public static String stream2String(InputStream is, int maxLength) throws IOException { byte[] buffer = new byte[4096]; StringWriter sw = new StringWriter(); int totalRead = 0; int read = 0; do { sw.write(new String(buffer, 0, read)); totalRead += read; read = is.read(buffer, 0, buffer.length); } while (((-1 == maxLength) || (totalRead < maxLength)) && (read != -1)); return sw.toString(); } /** * @return a string representation of the given native array. */ public static String toString(float[] iArray) { if (iArray == null) { return "NULL"; } StringBuilder buffer = new StringBuilder(); buffer.append("["); for (int i = 0; i < iArray.length; i++) { buffer.append(iArray[i]); if (i != (iArray.length - 1)) { buffer.append(", "); } } buffer.append("]"); return buffer.toString(); } /** * @return a string representation of the given native array. */ public static String toString(long[] iArray) { if (iArray == null) { return "NULL"; } StringBuilder buffer = new StringBuilder(); buffer.append("["); for (int i = 0; i < iArray.length; i++) { buffer.append(iArray[i]); if (i != (iArray.length - 1)) { buffer.append(", "); } } buffer.append("]"); return buffer.toString(); } /** * @return a string representation of the given native array */ public static String toString(int[] iArray) { if (iArray == null) { return "NULL"; } StringBuilder buffer = new StringBuilder(); buffer.append("["); for (int i = 0; i < iArray.length; i++) { buffer.append(iArray[i]); if (i != (iArray.length - 1)) { buffer.append(", "); } } buffer.append("]"); return buffer.toString(); } /** * @return a string representation of the given array. */ public static String toString(String[] iArray) { if (iArray == null) { return "NULL"; } StringBuilder buffer = new StringBuilder(); buffer.append("["); for (int i = 0; i < iArray.length; i++) { buffer.append("'").append(iArray[i]).append("'"); if (i != iArray.length - 1) { buffer.append(", "); } } buffer.append("]"); return buffer.toString(); } /** * Returns the string, in single quotes, or "NULL". Intended only for * logging. * * @param s the string * @return the string, in single quotes, or the string "null" if it's null. */ public static String toString(String s) { if (s == null) { return "NULL"; } else { return new StringBuilder(s.length() + 2).append("'").append(s) .append("'").toString(); } } /** * @return a string representation of the given native array */ public static String toString(int[][] iArray) { if (iArray == null) { return "NULL"; } StringBuilder buffer = new StringBuilder(); buffer.append("["); for (int i = 0; i < iArray.length; i++) { buffer.append("["); for (int j = 0; j < iArray[i].length; j++) { buffer.append(iArray[i][j]); if (j != (iArray[i].length - 1)) { buffer.append(", "); } } buffer.append("]"); if (i != iArray.length - 1) { buffer.append(" "); } } buffer.append("]"); return buffer.toString(); } /** * @return a string representation of the given native array. */ public static String toString(long[][] iArray) { if (iArray == null) { return "NULL"; } StringBuilder buffer = new StringBuilder(); buffer.append("["); for (int i = 0; i < iArray.length; i++) { buffer.append("["); for (int j = 0; j < iArray[i].length; j++) { buffer.append(iArray[i][j]); if (j != (iArray[i].length - 1)) { buffer.append(", "); } } buffer.append("]"); if (i != iArray.length - 1) { buffer.append(" "); } } buffer.append("]"); return buffer.toString(); } /** * @return a String representation of the given object array. * The strings are obtained by calling toString() on the * underlying objects. */ public static String toString(Object[] obj) { if (obj == null) { return "NULL"; } StringBuilder tmp = new StringBuilder(); tmp.append("["); for (int i = 0; i < obj.length; i++) { tmp.append(obj[i].toString()); if (i != obj.length - 1) { tmp.append(","); } } tmp.append("]"); return tmp.toString(); } }