iText⽣成pdf处理中⽂时标点可能会在⾏⾸
最终解决办法：
⾃⼰要处理的⽂本采⽤以下⽅式处理，因为Paragraph不存在tSplitCharacter ()⽅法
Chunk chunk = new Chunk(<asian text>,<asian font>);
chunk.tSplitCharacter(ChineSplitCharacter.SplitCharacter);
Paragraph paragraph = new Paragraph(chunk);
然后新建ChineSplitCharater类，然后就可以使⽤了。
import SplitCharacter;
import pdf.DefaultSplitCharacter;
import pdf.PdfChunk;
public class ChineSplitCharater implements SplitCharacter {
/
/ line of text cannot start or end with this character
static final char u2060 = '\u2060'; // - ZERO WIDTH NO BREAK SPACE
// a line of text cannot start with any following characters in NOT_BEGIN_CHARACTERS[]
static final char u30fb = '\u30fb'; // · - KATAKANA MIDDLE DOT
static final char u2022 = '\u2022'; // • - BLACK SMALL CIRCLE (BULLET)
static final char uff65 = '\uff65'; // - HALFWIDTH KATAKANA MIDDLE DOT
static final char u300d = '\u300d'; // 」 - RIGHT CORNER BRACKET
static final char uff09 = '\uff09'; // ） - FULLWIDTH RIGHT PARENTHESIS
static final char u0021 = '\u0021'; // ! - EXCLAMATION MARK
static final char u0025 = '\u0025'; // % - PERCENT SIGN
static final char u0029 = '\u0029'; // ) - RIGHT PARENTHESIS
static final char u002c = '\u002c'; // , - COMMA
static final char u002e = '\u002e'; // . - FULL STOP
static final char u003f = '\u003f'; // ? - QUESTION MARK
static final char u005d = '\u005d'; // ] - RIGHT SQUARE BRACKET
static final char u007d = '\u007d'; // } - RIGHT CURLY BRACKET
static final char uff61 = '\uff61'; // ｡ - HALFWIDTH IDEOGRAPHIC FULL STOP
static final char uff70 = '\uff70'; // - HALFWIDTH KATAKANA-HIRAGANA PROLONGED SOUND MARK
static final char uff9e = '\uff9e'; // - HALFWIDTH KATAKANA VOICED SOUND MARK
static final char uff9f = '\uff9f'; // - HALFWIDTH KATAKANA SEMI-VOICED SOUND MARK
static final char u3001 = '\u3001'; // 、 - IDEOGRAPHIC COMMA
static final char u3002 = '\u3002'; // 。 - IDEOGRAPHIC FULL STOP
static final char uff0c = '\uff0c'; // ， - FULLWIDTH COMMA
static final char uff0e = '\uff0e'; // ． - FULLWIDTH FULL STOP
static final char uff1a = '\uff1a'; // ： - FULLWIDTH COLON
static final char uff1b = '\uff1b'; // ； - FULLWIDTH SEMICOLON
static final char uff1f = '\uff1f'; // ？ - FULLWIDTH QUESTION MARK
static final char uff01 = '\uff01'; // ！ - FULLWIDTH EXCLAMATION MARK
static final char u309b = '\u309b'; // ゛ - KATAKANA-HIRAGANA VOICED SOUND MARK
static final char u309c = '\u309c'; // ゜ - KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK
static final char u30fd = '\u30fd'; // ヽ - KATAKANA ITERATION MARK
static final char u2019 = '\u2019'; // ’ - RIGHT SINGLE QUOTATION MARK
static final char u201d = '\u201d'; // ” - RIGHT DOUBLE QUOTATION MARK
static final char u3015 = '\u3015'; // 〕 - RIGHT TORTOISE SHELL BRACKET
static final char uff3d = '\uff3d'; // ］ - FULLWIDTH RIGHT SQUARE BRACKET
static final char uff5d = '\uff5d'; // ｝ - FULLWIDTH RIGHT CURLY BRACKET
static final char u3009 = '\u3009'; // 〉 - RIGHT ANGLE BRACKET
static final char u3009 = '\u3009'; // 〉 - RIGHT ANGLE BRACKET
static final char u300b = '\u300b'; // 》 - RIGHT DOUBLE ANGLE BRACKET
static final char u300f = '\u300f'; // 』 - RIGHT WHITE CORNER BRACKET
static final char u3011 = '\u3011'; // 】 - RIGHT BLACK LENTICULAR BRACKET
static final char u00b0 = '\u00b0'; // ° - DEGREE SIGN
static final char u2032 = '\u2032'; // ′ - PRIME
static final char u2033 = '\u2033'; // ″ - DOUBLE PRIME
static final char[] NOT_BEGIN_CHARACTERS = new char[]{u30fb, u2022, uff65, u300d, uff09, u0021, u0025, u0029, u002c,
u002e, u003f, u005d, u007d, uff61,
uff70, uff9e, uff9f, u3001, u3002, uff0c, uff0e, uff1a, uff1b, uff1f, uff01, u309b, u309c, u30fd,
u2019, u201d, u3015, uff3d, uff5d, u3009, u300b, u300f, u3011, u00b0,
u2032, u2033, u2060};
// a line of text cannot end with any following characters in NOT_ENDING_CHARACTERS[]
static final char u0024 = '\u0024'; // $ - DOLLAR SIGN
static final char u0028 = '\u0028'; // ( - LEFT PARENTHESIS
static final char u005b = '\u005b'; // [ - LEFT SQUARE BRACKET
static final char u007b = '\u007b'; // { - LEFT CURLY BRACKET
static final char u00a3 = '\u00a3'; // £ - POUND SIGN
static final char u00a5 = '\u00a5'; // ¥ - YEN SIGN
static final char u201c = '\u201c'; // “ - LEFT DOUBLE QUOTATION MARK
static final char u2018 = '\u2018'; // ‘ - LEFT SINGLE QUOTATION MARK
static final char u300a = '\u300a'; // 《 - LEFT DOUBLE ANGLE BRACKET
static final char u3008 = '\u3008'; // 〈 - LEFT ANGLE BRACKET
火锅底料炒锅
static final char u300c = '\u300c'; // 「 - LEFT CORNER BRACKET
static final char u300e = '\u300e'; // 『 - LEFT WHITE CORNER BRACKET
static final char u3010 = '\u3010'; // 【 - LEFT BLACK LENTICULAR BRACKET
static final char u3014 = '\u3014'; // 〔 - LEFT TORTOISE SHELL BRACKET
static final char uff62 = '\uff62'; // - HALFWIDTH LEFT CORNER BRACKET
static final char uff08 = '\uff08'; // （ - FULLWIDTH LEFT PARENTHESIS
static final char uff3b = '\uff3b'; // ［ - FULLWIDTH LEFT SQUARE BRACKET
static final char uff5b = '\uff5b'; // ｛ - FULLWIDTH LEFT CURLY BRACKET
static final char uffe5 = '\uffe5'; // ￥ - FULLWIDTH YEN SIGN
static final char uff04 = '\uff04'; // ＄ - FULLWIDTH DOLLAR SIGN
static final char[] NOT_ENDING_CHARACTERS = new char[]{u0024, u0028, u005b, u007b, u00a3, u00a5, u201c, u2018, u3008, u300a, u300c, u300e, u3010, u3014, uff62, uff08, uff3b, uff5b, uffe5, uff04, u2060};
/**
* An instance of the jpSplitCharacter.
*/
public static final ChineSplit SplitCharacter = new ChineSplit();
/**
* An instance DefaultSplitCharacter ud for BasicLatin characters.
*/
private static final SplitCharacter defaultSplitCharacter = new DefaultSplitCharacter();
public ChineSplit() { }
/**
* Custom method to for SplitCharacter to handle Japane characters.
* Returns <CODE>true</CODE> if the character can split a line. The splitting implementation
* is free to look ahead or look behind characters to make a decision.
*
洗洗衣机* @param start the lower limit of <CODE>cc</CODE> inclusive
* @param current the pointer to the character in <CODE>cc</CODE>
* @param end the upper limit of <CODE>cc</CODE> exclusive
* @param cc an array of characters at least <CODE>end</CODE> sized
* @param ck an array of <CODE>PdfChunk</CODE>. The main u is to be able to call
* {@link PdfChunk#getUnicodeEquivalent(int)}. It may be <CODE>null</CODE>
* or shorter than <CODE>end</CODE>. If <CODE>null</CODE> no conversion takes place.
* If shorter than <CODE>end</CODE> the last element is ud
* @return <CODE>true</CODE> if the character(s) can split a line
* @return <CODE>true</CODE> if the character(s) can split a line
*/
public boolean isSplitCharacter(int start, int current, int end, char[] cc, PdfChunk[] ck) {
/
/ Note: If you don't add an try/catch and there is an issue with isSplitCharacter(), iText silently fails and
// you have no idea there was a problem.
try {
char charCurrent = getCharacter(current, cc, ck);
int next = current + 1;
推荐免试研究生if (next < cc.length) {
char charNext = getCharacter(next, cc, ck);
for (char not_begin_character : NOT_BEGIN_CHARACTERS) {
有理数的加法教案if (charNext == not_begin_character) {
return fal;
}
}
}
for (char not_ending_character : NOT_ENDING_CHARACTERS) {
if (charCurrent == not_ending_character) {
return fal;
}
}
boolean isBasicLatin = Character.UnicodeBlock.of(charCurrent) == Character.UnicodeBlock.BASIC_LATIN;
if (isBasicLatin)
return defaultSplitCharacter.isSplitCharacter(start, current, end, cc, ck);
return true;
} catch (Exception ex) {
ex.printStackTrace();
}若有所失的意思
return true;
}
/**
* Returns a character int the array (Note: modified from the iText default version with the addition null
* check of '|| ck[Math.min(position, ck.length - 1)] == null'.
*摩羯狮子
* @param position position in the array
* @param ck chunk array
* @param cc the character array that has to be checked
* @return the character
*/
protected char getCharacter(int position, char[] cc, PdfChunk[] ck) {
if (ck == null || ck[Math.min(position, ck.length - 1)] == null) {
return cc[position];
}
return (char) ck[Math.min(position, ck.length - 1)].getUnicodeEquivalent(cc[position]);
}
}
------原内容--------------------------------------------------------------------------------------------------------------------------------------------------------------------------原帖地址：bbs.csdn/topics/380075439
亲测可⽤。将修改和添加完的java⽂件按照所在包结构放到项⽬内，myeclip会⾃动编译成class⽂件，把class⽂件放到jar包就可以使⽤了。
⾸先，要明⽩为什么在分栏的时候中⽂标点会出现在前⾯。你看DefaultSplitCharacter类，会明⽩，iText将中⽂也看成是分割符，只要将⼀栏的宽度填满，他就换⾏，不管下⼀个字符是什么。
顺着上⾯的问题，继续。
要解决这个问题：
第⼀要修改DefaultSplitCharacter类，添加所需的中⽂符号；
if (ains(c)) {
return true;
}
第⼆要修改分栏中调⽤写⼀⾏的那个类：iTextMe\src\com\itextpdf\text\pdf\BidiLine.java 中的
processLine（）⽅法。需要定义
boolean nextSurrogate;
在⽅法内添加判断
int nextUnic = 0;读后感50字左右
float nextCharWidth = 0;
if (currentChar < totalTextLength-1) {
// nextUnic = ck.getUnicodeEquivalent(text[currentChar+1]);
nextSurrogate = Utilities.isSurrogatePair(text, currentChar+1);
if (nextSurrogate){
nextUnic = ck.vertToUtf32(text, currentChar+1));
nextCharWidth = ck.getCharWidth(nextUnic);
}
el{
nextUnic = ck.getUnicodeEquivalent(text[currentChar+1]);
nextCharWidth = ck.getCharWidth(text[currentChar+1]);
}
/**
* 在⼀下内容判断前，先判断该字符与下⼀字符的宽度是否可以换⾏，如果宽度已经可以换⾏，则判断下⼀个字符是否为中⽂标点！
*/
if (width - charWidth - nextCharWidth < 0) {
if (ChineSymbolSplit.isIncludeChar(nextUnic)) {
// System.out.println("不能以标点符号开头！");
break;
}
}
}
//注：我是将所有的中⽂标点都封装到⼀个类了
import java.util.ArrayList;
import java.util.List;
/**
* 不能放在⾏⾸的中⽂标点
* @author Administrator
*
*/
public class ChineSymbolSplit {
public static List<Character> chSymSplits;
static {
柳体书法作品chSymSplits = new ArrayList<Character>(); chSymSplits.add('，');
chSymSplits.add('。');
chSymSplits.add('！');
chSymSplits.add('；');
chSymSplits.add('？');
/** 添加你所需的标点 ***/
}
public static boolean isIncludeChar(int srcChar) { for (int i = 0; i < chSymSplits.size(); i++) {
if ((i) == srcChar) {
return true;
}
}
return fal;
}
}
