streamutils.java

来自「get string from file」· Java 代码 · 共 52 行

import java.io.*;


public class StreamUtils {
	private static final int BUFFER_SIZE = 1024;

	public static String getString(InputStream inputStream)
		throws IOException {
		return getString(inputStream, "UTF-8");
	}
	
	public static String getString(InputStream inputStream, String enc)
		throws IOException {
		if (inputStream == null) {
			return null;
		}
	
		BufferedReader in = new BufferedReader(new InputStreamReader(
					inputStream, enc), BUFFER_SIZE);
		int charsRead;
		char[] copyBuffer = new char[BUFFER_SIZE];
		StringBuffer sb = new StringBuffer();
	
		while ((charsRead = in.read(copyBuffer, 0, BUFFER_SIZE)) != -1) {
			sb.append(copyBuffer, 0, charsRead);
		}
	
		in.close();
	
		return sb.toString();
	}	

	public static String getString(Reader reader)
		throws IOException {
		if (reader == null) {
			return null;
		}

		BufferedReader in = new BufferedReader(reader, BUFFER_SIZE);
		int charsRead;
		char[] copyBuffer = new char[BUFFER_SIZE];
		StringBuffer sb = new StringBuffer();

		while ((charsRead = in.read(copyBuffer, 0, BUFFER_SIZE)) != -1) {
			sb.append(copyBuffer, 0, charsRead);
		}

		in.close();

		return sb.toString();
	}
}