背景: 项目需要从html 提取说明书目录

实现: 由于html是包含所有内容,所以将其中目录部分手动重新生成一个html 文件dir26.html

python

import requests
from bs4 import BeautifulSoup
import jsonfilename = "dir26.html"  # 替换为实际的文件路径
with open(filename, "r") as file:html = file.read()soup = BeautifulSoup(html, "html.parser")results = soup.find_all('div') # 根据需要修改选择器
# print("soup:",soup)
# print("results:",results)# 提取数据并转换为JSON格式
data = []
for result in results:#print(result.text)resulttext = result.textdirectory = resulttext.split(" ")[0] // 取第一个空格之前的内容print(directory)page = resulttext.split(" ")[2]//取第三个空格之前的内容print(page)data.append({'directory': directory, 'page': page})# 写入JSON文件
with open("manualdir.json", "w") as file:json.dump(data, file, ensure_ascii=False)

android中读取Json 中的内容代码:

// 存储Json中的信息
private LinkedHashMap<String, String> mDirMap = new LinkedHashMap<String, String>();
private void initDirectory() {byte[] buffer;try {//将json文件读取到buffer数组中InputStream is = getContext().getResources().getAssets().open("manualdir.json");buffer = new byte[is.available()];is.read(buffer);} catch (IOException e) {Log.w(TAG, "manual dir json IOException e:" + e);return;}//  将字符数组转换为UTF-8编码的字符串String json;try {json = new String(buffer, "UTF-8");} catch (UnsupportedEncodingException e) {Log.w(TAG, "manual dir json UnsupportedEncodingException e" + e);return;}//将字符串json转换为json对象，以便于取出数据try {JSONArray jsa = new JSONArray(json);for (int i = 0; i < jsa.length();i++){JSONObject jso = jsa.getJSONObject(i);Log.w(TAG, " jsa.length():" +  jsa.length());String title = jso.optString("directory");//标题Log.w(TAG, "title:"+title);int page = jso.optInt("page");//目录页数mDirMap.put(title, "#pf"+Integer.toHexString(page));}} catch (JSONException e) {Log.w(TAG, "manual dir json exception e:"+e);}}