从阅读器解析CSV行
/*来自 N o w J a v a . c o m - 时 代 Java*/ //package com.nowjava; import java.io.Reader; import java.util.List; import java.util.Vector; public class Main { /** * Returns a null when the input stream is empty */ public static List<String> parseLine(Reader r) throws Exception { int ch = r.read(); while (ch == '\r') { ch = r.read(); } if (ch < 0) { return null; } Vector<String> store = new Vector<String>(); StringBuffer curVal = new StringBuffer(); boolean inquotes = false; boolean started = false;/*时代Java - nowjava.com 提 供*/ while (ch >= 0) { if (inquotes) { started = true; if (ch == '\"') { inquotes = false; } else { curVal.append((char) ch); } } else { if (ch == '\"') { inquotes = true; if (started) { // if this is the second quote in a value, add a quote // this is for the double quote in the middle of a value curVal.append('\"'); } } else if (ch == ',') { store.add(curVal.toString()); curVal = new StringBuffer(); started = false; } else if (ch == '\r') { //ignore LF characters } else if (ch == '\n') { //end of a line, break out break; } else { curVal.append((char) ch); } } ch = r.read(); } store.add(curVal.toString()); return store; } public static List<String> parseLine(Reader r, boolean t) throws Exception { int ch = r.read(); if (ch < 0) { return null; } Vector<String> store = new Vector<String>(); StringBuffer curVal = new StringBuffer(); while (ch != '\r') { if (ch == 32 || ch == '\r' || ch == '\n') { ch = r.read(); continue; } else if (ch < 0) { return null; } else if ((char) ch != ',') { curV