rtf转html
package pt.tumba.parser.rtf;
import java.awt.Color;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.StringTokenizer;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.DefaultStyledDocument;
import javax.swing.text.Document;
import javax.swing.text.Element;
import javax.swing.text.StyleConstants;
import javax.swing.text.rtf.RTFEditorKit;
/**
* Description of the Class
*
*@author bmartins
*@created 22 de Agosto de 2002
*/
public class RTF2HTML {
/**
* Description of the Class
*
*@author bmartins
*@created 22 de Agosto de 2002
*/
private class HTMLStateMachine {
private String alignNames[] = { "left", "center", "right" };
/**
* Description of the Field
*/
public boolean acceptFonts;
private String fontName;
private Color color;
private int size;
private int alignment;
private boolean bold;
private boolean italic;
private boolean underline;
private double firstLineIndent;
private double oldLeftIndent;
private double oldRightIndent;
private double leftIndent;
private double rightIndent;
private boolean firstLine;
/**
* Constructor for the HTMLStateMachine object
*/
HTMLStateMachine() {
acceptFonts = true;
fontName = "";
alignment = -1;
bold = false;
italic = false;
underline = false;
color = null;
size = -1;
firstLineIndent = 0.0D;
oldLeftIndent = 0.0D;
oldRightIndent = 0.0D;
leftIndent = 0.0D;
rightIndent = 0.0D;
firstLine = false;
}
/**
* Description of the Method
*
*@param attributeset Description of the Parameter
*@param stringbuffer Description of the Parameter
*@param element Description of the Parameter
*/
public void updateState(
AttributeSet attributeset,
StringBuffer stringbuffer,
Element element) {
String s = element.getName();
if (s.equalsIgnoreCase("paragraph")) {
firstLine = true;
}
leftIndent =
updateDouble(
attributeset,
leftIndent,
StyleConstants.LeftIndent);
rightIndent =
updateDouble(
attributeset,
rightIndent,
StyleConstants.RightIndent);
if (leftIndent != oldLeftIndent || rightIndent != oldRightIndent) {
closeIndentTable(stringbuffer, oldLeftIndent, oldRightIndent);
}
bold =
updateBoolean(
attributeset,
StyleConstants.Bold,
"b",
bold,
stringbuffer);
italic =
updateBoolean(
attributeset,
StyleConstants.Italic,
"i",
italic,
stringbuffer);
underline =
updateBoolean(
attributeset,
StyleConstants.Underline,
"u",
underline,
stringbuffer);
size = updateFontSize(attributeset, size, stringbuffer);
color = updateFontColor(attributeset, color, stringbuffer);
if (acceptFonts) {
fontName = updateFontName(attributeset, fontName, stringbuffer);
}
alignment = updateAlignment(attributeset, alignment, stringbuffer);
firstLineIndent =
updateDouble(
attributeset,
firstLineIndent,
StyleConstants.FirstLineIndent);
if (leftIndent != oldLeftIndent || rightIndent != oldRightIndent) {
openIndentTable(stringbuffer, leftIndent, rightIndent);
oldLeftIndent = leftIndent;
oldRightIndent = rightIndent;
}
}
/**
* Description of the Method
*
*@param stringbuffer Description of the Parameter
*@param d Description of the Parameter
*@param d1 Description of the Parameter
*/
private void openIndentTable(
StringBuffer stringbuffer,
double d,
double d1) {
if (d != 0.0D || d1 != 0.0D) {
closeSubsetTags(stringbuffer);
stringbuffer.append("");
String s = getSpaceTab((int) (d / 4D));
if (s.length() > 0) {
stringbuffer.append("" + s + " ");
}
stringbuffer.append("");
}
}
/**
* Description of the Method
*
*@param stringbuffer Description of the Parameter
*@param d Description of the Parameter
*@param d1 Description of the Parameter
*/
private void closeIndentTable(
StringBuffer stringbuffer,
double d,
double d1) {
if (d != 0.0D || d1 != 0.0D) {
closeSubsetTags(stringbuffer);
stringbuffer.append(" ");
String s = getSpaceTab((int) (d1 / 4D));
if (s.length() > 0) {
stringbuffer.append("" + s + " ");
}
stringbuffer.append("
");
}
}
/**
* Description of the Method
*
*@param stringbuffer Description of the Parameter
*/
public void closeTags(StringBuffer stringbuffer) {
closeSubsetTags(stringbuffer);
closeTag(alignment, -1, "div", stringbuffer);
alignment = -1;
closeIndentTable(stringbuffer, oldLeftIndent, oldRightIndent);
}
/**
* Description of the Method
*
*@param stringbuffer Description of the Parameter
*/
private void closeSubsetTags(StringBuffer stringbuffer) {
closeTag(bold, "b", stringbuffer);
closeTag(italic, "i", stringbuffer);
closeTag(underline, "u", stringbuffer);
closeTag(color, "font", stringbuffer);
closeTag(fontName, "font", stringbuffer);
closeTag(size, -1, "font", stringbuffer);
bold = false;
italic = false;
underline = false;
color = null;
fontName = "";
size = -1;
}
/**
* Description of the Method
*
*@param flag Description of the Parameter
*@param s Description of the Parameter
*@param stringbuffer Description of the Parameter
*/
private void closeTag(
boolean flag,
String s,
StringBuffer stringbuffer) {
if (flag) {
stringbuffer.append("");
}
}
/**
* Description of the Method
*
*@param color1 Description of the Parameter
*@param s Description of the Parameter
*@param stringbuffer Description of the Parameter
*/
private void closeTag(
Color color1,
String s,
StringBuffer stringbuffer) {
if (color1 != null) {
stringbuffer.append("");
}
}
/**
* Description of the Method
*
*@param s Description of the Parameter
*@param s1 Description of the Parameter
*@param stringbuffer Description of the Parameter
*/
private void closeTag(String s, String s1, StringBuffer stringbuffer) {
if (s.length() > 0) {
stringbuffer.append("");
}
}
/**
* Description of the Method
*
*@param i Description of the Parameter
*@param j Description of the Parameter
*@param s Description of the Parameter
*@param stringbuffer Description of the Parameter
*/
private void closeTag(
int i,
int j,
String s,
StringBuffer stringbuffer) {
if (i > j) {
stringbuffer.append("");
}
}
/**
* Description of the Method
*
*@param attributeset Description of the Parameter
*@param i Description of the Parameter
*@param stringbuffer Description of the Parameter
*@return Description of the Return Value
*/
private int updateAlignment(
AttributeSet attributeset,
int k,
StringBuffer stringbuffer) {
int i = k;
Object obj = attributeset.getAttribute(StyleConstants.Alignment);
if (obj == null)
return i;
int j = ((Integer) obj).intValue();
if (j == 3) {
j = 0;
}
if (j != i && j >= 0 && j <= 2) {
if (i > -1) {
stringbuffer.append("");
i = j;
}
return i;
}
/**
* Description of the Method
*
*@param attributeset Description of the Parameter
*@param color1 Description of the Parameter
*@param stringbuffer Description of the Parameter
*@return Description of the Return Value
*/
private Color updateFontColor(
AttributeSet attributeset,
Color color3,
StringBuffer stringbuffer) {
Color color1 = color3;
Object obj = attributeset.getAttribute(StyleConstants.Foreground);
if (obj == null)
return color1;
Color color2 = (Color) obj;
if (color2 != color1) {
if (color1 != null) {
stringbuffer.append("");
}
if (color2 != null) {
stringbuffer.append(
"");
}
}
color1 = color2;
return color1;
}
/**
* Description of the Method
*
*@param attributeset Description of the Parameter
*@param s Description of the Parameter
*@param stringbuffer Description of the Parameter
*@return Description of the Return Value
*/
private String updateFontName(
AttributeSet attributeset,
String s2,
StringBuffer stringbuffer) {
String s = s2;
Object obj = attributeset.getAttribute(StyleConstants.FontFamily);
if (obj == null)
return s;
String s1 = (String) obj;
if (!s1.equals(s)) {
if (!s.equals("")) {
stringbuffer.append("");
}
stringbuffer.append("");
}
s = s1;
return s;
}
/**
* Description of the Method
*
*@param attributeset Description of the Parameter
*@param d Description of the Parameter
*@param obj Description of the Parameter
*@return Description of the Return Value
*/
private double updateDouble(
AttributeSet attributeset,
double d2,
Object obj) {
double d = d2;
Object obj1 = attributeset.getAttribute(obj);
if (obj1 != null) {
d = ((Float) obj1).floatValue();
}
return d;
}
/**
* Description of the Method
*
*@param attributeset Description of the Parameter
*@param i Description of the Parameter
*@param stringbuffer Description of the Parameter
*@return Description of the Return Value
*/
private int updateFontSize(
AttributeSet attributeset,
int k,
StringBuffer stringbuffer) {
int i = k;
Object obj = attributeset.getAttribute(StyleConstants.FontSize);
if (obj == null)
return i;
int j = ((Integer) obj).intValue();
if (j != i) {
if (i != -1) {
stringbuffer.append("");
}
stringbuffer.append("");
}
i = j;
return i;
}
/**
* Description of the Method
*
*@param attributeset Description of the Parameter
*@param obj Description of the Parameter
*@param s Description of the Parameter
*@param flag Description of the Parameter
*@param stringbuffer Description of the Parameter
*@return Description of the Return Value
*/
private boolean updateBoolean(
AttributeSet attributeset,
Object obj,
String s,
boolean flag2,
StringBuffer stringbuffer) {
boolean flag = flag2;
Object obj1 = attributeset.getAttribute(obj);
if (obj1 != null) {
boolean flag1 = ((Boolean) obj1).booleanValue();
if (flag1 != flag) {
if (flag1) {
stringbuffer.append("<" + s + ">");
} else {
stringbuffer.append("");
}
}
flag = flag1;
}
return flag;
}
/**
* Description of the Method
*
*@param color1 Description of the Parameter
*@return Description of the Return Value
*/
private String makeColorString(Color color1) {
String s = Long.toString(color1.getRGB() & 0xffffff, 16);
if (s.length() < 6) {
StringBuffer stringbuffer = new StringBuffer();
for (int i = s.length(); i < 6; i++) {
stringbuffer.append("0");
}
stringbuffer.append(s);
s = stringbuffer.toString();
}
return s;
}
/**
* Description of the Method
*
*@param s Description of the Parameter
*@return Description of the Return Value
*/
public String performFirstLineIndent(String s2) {
String s = s2;
if (firstLine) {
if (firstLineIndent != 0.0D) {
int i = (int) (firstLineIndent / 4D);
s = getSpaceTab(i) + s;
}
firstLine = false;
}
return s;
}
/**
* Gets the spaceTab attribute of the HTMLStateMachine object
*
*@param i Description of the Parameter
*@return The spaceTab value
*/
public String getSpaceTab(int i) {
StringBuffer stringbuffer = new StringBuffer();
for (int j = 0; j < i; j++) {
stringbuffer.append(" ");
}
return stringbuffer.toString();
}
}
/**
* Constructor for the RTF2HTML object
*/
public RTF2HTML() {
}
private int sizeCount = 0;
/**
* Description of the Method
*
*@return Description of the Return Value
*/
public int originalSize() {
return sizeCount;
}
/**
* Description of the Method
*
*@param s2 Description of the Parameter
*@return Description of the Return Value
*/
public String convertRTFToHTML(String s4) {
String s2 = s4;
sizeCount = s2.length();
HTMLStateMachine htmlstatemachine = new HTMLStateMachine();
s2 = convertRTFStringToHTML(s2, htmlstatemachine);
//String s3 = new String("");
String s3 = new String("");
StringTokenizer st = new StringTokenizer(s2);
while (st.hasMoreTokens()) {
String s = st.nextToken();
if (s.startsWith("http://")) {
s = "" + s + "";
}
s3 += s + " ";
}
//return s3 + "";
return s3 ;
}
/**
* Description of the Method
*
*@param input Description of the Parameter
*@return Description of the Return Value
*@exception IOException Description of the Exception
*/
public String convertRTFToHTML(Reader input) throws IOException {
BufferedReader strm = new BufferedReader(input);
StringBuffer sb = new StringBuffer();
int s;
while ((s = strm.read()) != -1) {
sb.append((char) s);
}
return convertRTFToHTML(sb.toString());
}
/**
* Description of the Method
*
*@param input Description of the Parameter
*@return Description of the Return Value
*@exception IOException Description of the Exception
*/
public String convertRTFToHTML(InputStream input) throws IOException {
BufferedReader strm = new BufferedReader(new InputStreamReader(input));
StringBuffer sb = new StringBuffer();
int s;
while ((s = strm.read()) != -1) {
sb.append((char) s);
}
return convertRTFToHTML(sb.toString());
}
/**
* Description of the Method
*
*@param input Description of the Parameter
*@return Description of the Return Value
*@exception IOException Description of the Exception
*/
public String convertRTFToHTML(File input) throws IOException {
BufferedReader strm = new BufferedReader(new FileReader(input));
StringBuffer sb = new StringBuffer();
int s;
while ((s = strm.read()) != -1) {
sb.append((char) s);
}
return convertRTFToHTML(sb.toString());
}
/**
* Description of the Method
*
*@param input Description of the Parameter
*@return Description of the Return Value
*@exception IOException Description of the Exception
*/
public String convertRTFToHTML(URL input) throws IOException {
HttpURLConnection conn = (HttpURLConnection) input.openConnection();
conn.setAllowUserInteraction(false);
conn.setRequestProperty(
"User-agent",
"Mozilla/4.0 (compatible; MSIE 5.5; Windows 98");
conn.setInstanceFollowRedirects(true);
conn.connect();
BufferedReader strm =
new BufferedReader(new InputStreamReader(conn.getInputStream()));
StringBuffer sb = new StringBuffer();
int s;
while ((s = strm.read()) != -1) {
sb.append((char) s);
}
return convertRTFToHTML(sb.toString());
}
/**
* Description of the Method
*
*@param s Description of the Parameter
*@return Description of the Return Value
*/
public String convertRTFStringToHTML(String s) {
HTMLStateMachine htmlstatemachine = new HTMLStateMachine();
RTFEditorKit rtfeditorkit = new RTFEditorKit();
DefaultStyledDocument defaultstyleddocument =
new DefaultStyledDocument();
readString(s, defaultstyleddocument, rtfeditorkit);
return scanDocument(defaultstyleddocument, htmlstatemachine);
}
/**
* Description of the Method
*
*@param s Description of the Parameter
*@param htmlstatemachine Description of the Parameter
*@return Description of the Return Value
*/
private String convertRTFStringToHTML(
String s2,
HTMLStateMachine htmlstatemachine) {
String s = s2;
RTFEditorKit rtfeditorkit = new RTFEditorKit();
DefaultStyledDocument defaultstyleddocument =
new DefaultStyledDocument();
readString(s, defaultstyleddocument, rtfeditorkit);
s = scanDocument(defaultstyleddocument, htmlstatemachine);
return s;
}
/**
* Description of the Method
*
*@param s Description of the Parameter
*@param document Description of the Parameter
*@param rtfeditorkit Description of the Parameter
*/
private void readString(
String s,
Document document,
RTFEditorKit rtfeditorkit) {
try {
ByteArrayInputStream bytearrayinputstream =
new ByteArrayInputStream(s.getBytes());
rtfeditorkit.read(bytearrayinputstream, document, 0);
} catch (Exception exception) {
return;
// exception.printStackTrace();
}
}
/**
* Description of the Method
*
*@param document Description of the Parameter
*@param htmlstatemachine Description of the Parameter
*@return Description of the Return Value
*/
private String scanDocument(
Document document,
HTMLStateMachine htmlstatemachine) {
String s = "";
try {
StringBuffer stringbuffer = new StringBuffer();
Element element = document.getDefaultRootElement();
recurseElements(element, document, stringbuffer, htmlstatemachine);
htmlstatemachine.closeTags(stringbuffer);
s = stringbuffer.toString();
} catch (Exception exception) {
return s;
// exception.printStackTrace();
}
return s;
}
/**
* Description of the Method
*
*@param element Description of the Parameter
*@param document Description of the Parameter
*@param stringbuffer Description of the Parameter
*@param htmlstatemachine Description of the Parameter
*/
private void recurseElements(
Element element,
Document document,
StringBuffer stringbuffer,
HTMLStateMachine htmlstatemachine) {
for (int i = 0; i < element.getElementCount(); i++) {
Element element1 = element.getElement(i);
scanAttributes(element1, document, stringbuffer, htmlstatemachine);
recurseElements(element1, document, stringbuffer, htmlstatemachine);
}
}
/**
* Description of the Method
*
*@param element Description of the Parameter
*@param document Description of the Parameter
*@param stringbuffer Description of the Parameter
*@param htmlstatemachine Description of the Parameter
*/
private void scanAttributes(
Element element,
Document document,
StringBuffer stringbuffer,
HTMLStateMachine htmlstatemachine) {
try {
int i = element.getStartOffset();
int j = element.getEndOffset();
String s = document.getText(i, j - i);
javax.swing.text.AttributeSet attributeset =
element.getAttributes();
htmlstatemachine.updateState(attributeset, stringbuffer, element);
String s1 = element.getName();
if (s1.equalsIgnoreCase("content")) {
s = s.replaceAll("\\t", htmlstatemachine.getSpaceTab(8));
s = s.replaceAll("\\n", "
\n"); s = htmlstatemachine.performFirstLineIndent(s); stringbuffer.append(s); } } catch (BadLocationException badlocationexception) { return; // badlocationexception.printStackTrace(); } } /** * Description of the Method * *@param in Description of the Parameter *@return Description of the Return Value *@exception Exception Description of the Exception */ public InputStream parse(File in) throws Exception { return parse(new FileInputStream(in)); } /** * Description of the Method * *@param in Description of the Parameter *@return Description of the Return Value *@exception Exception Description of the Exception */ public InputStream parse(URL in) throws Exception { HttpURLConnection conn = (HttpURLConnection) in.openConnection(); conn.setAllowUserInteraction(false); conn.setRequestProperty("User-agent", "www.tumba.pt"); conn.setInstanceFollowRedirects(true); conn.connect(); return parse(conn.getInputStream()); } /** * Arguments are: 0. Name of input SWF * *@param in Description of the Parameter *@return Description of the Return Value *@exception Exception Description of the Exception */ public InputStream parse(InputStream in) throws Exception { BufferedReader strm = new BufferedReader(new InputStreamReader(in)); StringBuffer sb = new StringBuffer(); int s; while ((s = strm.read()) != -1) { sb.append((char) s); } String s2 = convertRTFToHTML(sb.toString()); return new ByteArrayInputStream(s2.getBytes()); } }
\n"); s = htmlstatemachine.performFirstLineIndent(s); stringbuffer.append(s); } } catch (BadLocationException badlocationexception) { return; // badlocationexception.printStackTrace(); } } /** * Description of the Method * *@param in Description of the Parameter *@return Description of the Return Value *@exception Exception Description of the Exception */ public InputStream parse(File in) throws Exception { return parse(new FileInputStream(in)); } /** * Description of the Method * *@param in Description of the Parameter *@return Description of the Return Value *@exception Exception Description of the Exception */ public InputStream parse(URL in) throws Exception { HttpURLConnection conn = (HttpURLConnection) in.openConnection(); conn.setAllowUserInteraction(false); conn.setRequestProperty("User-agent", "www.tumba.pt"); conn.setInstanceFollowRedirects(true); conn.connect(); return parse(conn.getInputStream()); } /** * Arguments are: 0. Name of input SWF * *@param in Description of the Parameter *@return Description of the Return Value *@exception Exception Description of the Exception */ public InputStream parse(InputStream in) throws Exception { BufferedReader strm = new BufferedReader(new InputStreamReader(in)); StringBuffer sb = new StringBuffer(); int s; while ((s = strm.read()) != -1) { sb.append((char) s); } String s2 = convertRTFToHTML(sb.toString()); return new ByteArrayInputStream(s2.getBytes()); } }
代码来自 webcat,适用于英文.且不包含图片应用范例如下:
String rlt = new RTF2HTML().convertRTFToHTML(new File(filepath));
System.out.println(rlt);