根据给定的值和分隔符以CSV格式创建一行。
/* 来 自* nowjava.com */ /******************************************************************************* * Copyright (c) 2008 Actuate Corporation. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Actuate Corporation - initial API and implementation *******************************************************************************/ public class Main{ public static final String CR = "\r"; public static final String LF = "\n"; public static final String QUOTE = "\""; /** * Creates a row in CSV format from the given values and separator. * The returned row includes the newline character. * @param values values of the columns * @param sep separator to use * @return CSV-formatted row using the given separator and values */ public static String makeCSVRow(String[] values, String sep, boolean addCR) { StringBuffer buf = new StringBuffer(values.length * 10); for (int i = 0; i < values.length; i++) { if (i > 0) { buf.append(sep); } String value = quoteCSVValue(values[i], sep); if (value != null) { buf.append(value); /** N o w J a v a . c o m - 时代Java 提供 **/ } } if (addCR) { buf.append(CR); } buf.append(LF); return buf.toString(); } /** * Quotes a value in CSV format converter. Here are the rules: * <ol><li>Fields with given separator must be delimited with double-quote * characters.</li> * <li>Fields that contain double quote characters must be * surrounded by double-quotes, and the embedded double-quotes must each be * represented by a pair of consecutive double quotes.</li> * <li>A field that contains embedded line-breaks must be surrounded by * double-quotes.</li> * <li>Fields with leading or trailing spaces must be delimited with * double-quote characters.</li> * <li>Null values are represented by empty strings without quotes</li> * * @param value value to quote * @param sep CSV separator, to check whether the value contains it * @return the value quoted in CSV format */ public static String quoteCSVValue(String value, String sep) { if (value == null) { return null; } else if (value.length() == 0) { return QUOTE + QUOTE; } // escape quotes value = value.replaceAll(QUOTE, QUOTE + QUOTE); boolean needQuote = false; need