html 替换body代码,[分享]从HTML中提取TITLE和BODY标签内容的代码

痛定思痛。 2022-10-06 13:49 197阅读 0赞

使用了HTML Parser的一个小程序。

import java.io.BufferedWriter;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.OutputStreamWriter;

import java.io.Writer;

import java.util.ArrayList;

import java.util.List;

import org.apache.commons.collections.ListUtils;

import org.apache.commons.lang.StringUtils;

import org.htmlparser.Node;

import org.htmlparser.Parser;

import org.htmlparser.Remark;

import org.htmlparser.tags.ScriptTag;

import org.htmlparser.util.NodeList;

import org.htmlparser.util.ParserException;

/\*\*

\* @version 1.0

\* @author 郝春利

\*/

public class HtmlContentsFileConverter extends AbstractConverter \{

private String inputEncode;

private String outputEncode;

public HtmlContentsFileConverter(String inputEncode, String outputEncode) \{

this.inputEncode = inputEncode;

this.outputEncode = outputEncode;

public boolean convert(File r, File w) throws IOException \{

Parser parser = null;

Writer to = null;

String title = StringUtils.EMPTY;

StringBuilder body = new StringBuilder(1024);

try \{

parser = new Parser(r.getPath());

parser.setEncoding(inputEncode);

NodeList rootNode = parser.parse(null);

Node titleNode = getTitleNode(rootNode);

if(titleNode != null)\{

title = BatchUtil.trimAndEscape(titleNode.toPlainTextString()) + "/n";

Node bodyNode = null;

for (Node node : getTargetNodeListByName(rootNode, "body")) \{

bodyNode = node;

break;

if (bodyNode == null) \{

body = new StringBuilder();

for (Node node : removeRemark(bodyNode.getChildren()).toNodeArray()) \{

body.append(node.toPlainTextString());

\} catch (ParserException e) \{

throw new RuntimeException(e);

try \{

to = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(w, false), outputEncode));

to.write(title + BatchUtil.trimAndEscape(body.toString()));

\} finally \{

try \{

if (to != null) \{

to.close();

\} catch (IOException e) \{

return true;

public Node getTitleNode(NodeList list) \{

if (list == null) \{

return null;

for (Node node : list.toNodeArray()) \{

if (node.toString().toLowerCase().startsWith("title")) \{

return node;

if (node.getChildren() != null && node.getChildren().toNodeArray() != null

&& 0 < node.getChildren().toNodeArray().length) \{

return getTitleNode(node.getChildren());

return null;

public List getTargetNodeListByName(NodeList list, String name) \{

if (list == null || StringUtils.isBlank(name)) \{

return ListUtils.EMPTY\_LIST;

List resultList = new ArrayList();

for (Node node : list.toNodeArray()) \{

if (node.getText().toLowerCase().startsWith(name.toLowerCase())) \{

resultList.add(node);

if (node.getChildren() != null && node.getChildren().toNodeArray() != null

&& 0 < node.getChildren().toNodeArray().length) \{

resultList.addAll(getTargetNodeListByName(node.getChildren(), name));

return resultList;

public NodeList removeRemark(NodeList list) \{

if (list == null) \{

return list;

for (Node node : list.toNodeArray()) \{

if (node instanceof Remark || node instanceof ScriptTag) \{

list.remove(node);

if (node.getChildren() != null && node.getChildren().toNodeArray() != null

&& 0 < node.getChildren().toNodeArray().length) \{

removeRemark(node.getChildren());

return list;

html 替换body代码,[分享]从HTML中提取TITLE和BODY标签内容的代码

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