我创建了一个脚本来设置rtf 到 html 转换后的中心和右对齐。我用javascript和Java制作了它。遵循以下代码：
两者都需要两个 css 类：
.wricent {
text-align: center;
}
.wririgh {
text-align: right;
}
JavaScript
function fixCenterRightAlign(rtf, html) {
html = fixAlign(rtf, html, 'qc');
return fixAlign(rtf, html, 'qr');
}
function fixAlign(rtf, html, align) {
let lastCountParBeforePard = 0;
let countParBeforePard = 0;
let indexPard = 0;
let iqc = 0;
let toContinue = true;
let firstCicle = true;
const p_class = '<p class=';
const c_class = align === 'qc' ? '<p class=wricent' : '<p class=wririgh';
while(toContinue) {
let indexNextP = 0;
iqc = rtf.substr(indexPard).indexOf('\\' + align);
if (iqc > -1) {
iqc += indexPard;
let parQtLeft = getParQt(rtf.substr(0, iqc));
let rtfFirstQc = rtf.substr(iqc);
indexPard = rtfFirstQc.indexOf('\\pard');
if (indexPard > -1) {
rtfFirstQc = rtfFirstQc.substr(0, indexPard);
countParBeforePard = getParBeforePard(rtfFirstQc, indexPard);
} else {
toContinue = false;
indexPard = 0;
countParBeforePard = 0;
}
let parQt = getParQt(rtfFirstQc) + (lastCountParBeforePard - countParBeforePard);
firstCicle && parQt++;
indexPard += iqc;
if (parQt > 0) {
for (let i = 0; i < (parQtLeft + parQt); i++) {
let actualIdexNextP = html.substr(indexNextP).indexOf(p_class);
if ((i + 1) > parQtLeft && actualIdexNextP > -1) {
html = replaceAt(html, indexNextP + actualIdexNextP, c_class);
}
indexNextP += c_class.length + actualIdexNextP;
}
}
lastCountParBeforePard = angular.copy(countParBeforePard);
} else {
toContinue = false;
}
firstCicle = false;
}
return html;
}
function replaceAt(text, index, character) {
return text.substr(0, index) + character + text.substr(index + character.length);
}
function getParBeforePard(rtfFirstQc, indexPard) {
let text = rtfFirstQc.substr(indexPard - 6, indexPard);
return getParQt(text);
}
function getParQt(text) {
let pardQt = text.match(new RegExp('\\\\pard', "g"));
let parQt = text.match(new RegExp('\\\\par', "g"));
pardQt = pardQt ? pardQt.length : 0;
return (parQt ? parQt.length : 0) - pardQt;
}
爪哇
private final String RTF_CENTER_TAG = "qc";
private final String RTF_RIGHT_TAG = "qr";
/**
* Fix the alignment center and right of the html template
* @param rtf String containing the <b>rtf template</b>
* @param html String containing the <b>html template from the rtf convertion</b>
* @author desilva
* @return String with the html template with the center/right align fixed
*/
private String stylizeAligment(String rtf, String html) {
html = fixAlign(rtf, html, this.RTF_CENTER_TAG);
return fixAlign(rtf, html, this.RTF_RIGHT_TAG);
}
/**
* Fix the align of the html template based on the rtf and the rtf tag to fix
* @param rtf String containing the <b>rtf template</b>
* @param html String containing the <b>html template from the rtf convertion</b>
* @param tagAlign
* @return
*/
private String fixAlign(String rtf, String html, String tagAlign) {
Integer parQt = 0;
Integer pardQt = 0;
Integer lastCountParBeforePard = 0;
Integer countParBeforePard = 0;
Integer indexPard = 0;
Integer iqc = 0;
boolean toContinue = true;
boolean firstCicle = true;
String pClass = "<p class=";
String cClass = (tagAlign.equals(this.RTF_CENTER_TAG) ? "<p class=wricent" : "<p class=wririgh");
while(toContinue) {
int indexNextP = 0;
iqc = rtf.substring(indexPard).indexOf("\\" + tagAlign);
if (iqc > -1) {
iqc += indexPard;
Integer pardQtLeft = this.getMatches(rtf.substring(0, iqc), "\\\\pard");
Integer parQtLeft = this.getMatches(rtf.substring(0, iqc), "\\\\par") - pardQtLeft;
String rtfFirstQc = rtf.substring(iqc);
indexPard = rtfFirstQc.indexOf("\\pard");
if (indexPard > -1) {
rtfFirstQc = rtfFirstQc.substring(0, indexPard);
countParBeforePard = this.getParBeforePard(rtfFirstQc, indexPard);
} else {
toContinue = false;
indexPard = 0;
countParBeforePard = 0;
}
pardQt = this.getMatches(rtfFirstQc,"\\\\pard");
parQt = this.getMatches(rtfFirstQc,"\\\\par") - pardQt;
parQt += (lastCountParBeforePard - countParBeforePard);
if(firstCicle) parQt++;
indexPard += iqc;
if (parQt > 0) {
for (int i = 0; i < (parQtLeft + parQt); i++) {
Integer actualIdexNextP = html.substring(indexNextP).indexOf(pClass);
if ((i + 1) > parQtLeft && actualIdexNextP > -1) {
html = this.replaceAt(html, indexNextP + actualIdexNextP, cClass);
}
indexNextP += cClass.length() + actualIdexNextP;
}
}
lastCountParBeforePard = countParBeforePard;
} else {
toContinue = false;
}
firstCicle = false;
}
return html;
}
private String replaceAt(String text, int index, String character) {
return text.substring(0, index) + character + text.substring(index + character.length());
}
private int getParBeforePard(String rtfFirstQc, int indexPard) {
String text = rtfFirstQc.substring(indexPard - 6, indexPard);
int pardQt = this.getMatches(text, "\\\\pard");
return this.getMatches(text, "\\\\par") - pardQt;
}
private Integer getMatches(String input, String regex) {
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(input);
int from = 0;
int count = 0;
while(matcher.find(from)) {
count++;
from = matcher.start() + 1;
}
return count;
}
使用方法： stylizeAligment和fixCenterRightAlign方法接收到 String rtf 和它的 html 转换后，返回的是 align 固定的 html。
我需要创建它，因为我使用 javax.swing.text.rtf 将 rtf 转换为 html。
在我的情况下，带下划线的文本也不起作用，所以要修复它只需放置 css 样式：
p span u {
text-decoration: underline;
}