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上一篇文章咱们曾经拿到json包了,咱们可能须要将它外面的一些信息整理出来,因为并不是所有的信息咱们都是须要的,这里咱们采纳Java的环境进行对json包的解析。

  1. 筹备工作

    1. 应用工具:IntelliJ IDEA
    2. 导入两个依赖:第一个是org.json包,另一个是XSSF。

      1. org.json包是一个用来beans,collections,maps,java arrays,XML和JSON相互转换的包,次要提供JSONObject和JSONArray类,是Java罕用的Json解析工具。
      2. XSSF - 提供读写Microsoft Excel OOXML XLSX格局档案的性能。
  2. 导入json包,并且转换成我的项目。
  3. 取得须要的货色
  4. 导出到excel表中

1、依赖的代码

     <dependency>        <groupId>org.json</groupId>        <artifactId>json</artifactId>        <version>20200518</version>    </dependency>    <dependency>        <groupId>org.apache.poi</groupId>        <artifactId>poi-ooxml</artifactId>        <version>3.10.1</version>    </dependency>

2、导入的代码

public class daolu {    public static void main(String[] args) throws IOException {        System.out.println(readTxtFileIntoStringArrList("须要转换文件的地址"));        List<String> a = readTxtFileIntoStringArrList("须要转换文件的地址");        char b = '\n';        String c = listToString3(a, b);        //System.out.println(c);    }    public static List<String> readTxtFileIntoStringArrList(String filePath) {        List<String> list = new ArrayList<String>();        try {            String encoding = "UTF-8";            File file = new File(filePath);            if (file.isFile() && file.exists()) {                InputStreamReader read = new InputStreamReader(                        new FileInputStream(file), encoding);                BufferedReader bufferedReader = new BufferedReader(read);                String lineTxt = null;                while ((lineTxt = bufferedReader.readLine()) != null) {                    list.add(lineTxt);                }                bufferedReader.close();                read.close();            } else {                System.out.println("找不到指定的文件");            }        } catch (Exception e) {            System.out.println("读取文件内容出错");            e.printStackTrace();        }        return list;    }    public static String listToString3(List list, char separator) {        StringBuilder sb = new StringBuilder();        for (int i = 0; i < list.size(); i++) {            sb.append(list.get(i));            if (i < list.size() - 1) {                sb.append(separator);            }        }        return sb.toString();    }}

3、依据本人要求抉择要什么数据(可依据这个来查看json文件的构造)

public class day13 {    public static void main(String[] args) throws IOException {        XSSFWorkbook workbook = new XSSFWorkbook();        XSSFSheet sheet = workbook.createSheet("13");        System.out.println(readTxtFileIntoStringArrList("C:\\Users\\xft32\\Desktop\\13.txt"));        List<String> a = readTxtFileIntoStringArrList("C:\\Users\\xft32\\Desktop\\13.txt");        char b = '\n';        String c = listToString3(a, b);        JSONObject myJSONObject;        try {            myJSONObject = new JSONObject(c);            JSONObject storeInfo = myJSONObject.getJSONObject("storeInfo");            JSONArray activities = storeInfo.getJSONArray("activities");            for (int j = 0; j < activities.length(); j++) {                JSONObject q = activities.getJSONObject(j);                String description = q.getString("description");                String icon_name = q.getString("icon_name");                System.out.println("description=" + description);                System.out.println("icon_name=" + icon_name);                String name = null;                if (q.isNull("name")) {                } else {                     name = q.getString("name");                    System.out.println("name=" + name);                }                XSSFRow row = sheet.createRow(j);                row.createCell(0).setCellValue("description=" + description);                row.createCell(1).setCellValue("icon_name=" + icon_name);                row.createCell(2).setCellValue("name=" + name);            }        } catch (JSONException e) {            e.printStackTrace();            System.out.println("异样");        }        FileOutputStream out = new FileOutputStream("C:\\Users\\xft32\\Desktop\\13.xlsx");        workbook.write(out);        out.flush();        out.close();        System.out.println("写入胜利");    }

4、导出到excel表

public class day14 {    public static void main(String[] args) throws IOException {        XSSFWorkbook workbook =new XSSFWorkbook();//创立新的excel表        XSSFSheet sheet =workbook.createSheet("13");//工作表标签命名        XSSFRow row=sheet.createRow(0);//第几行        row.createCell(0).setCellValue("");//第几个格子,内容是什么        FileOutputStream out=new FileOutputStream("C:\\Users\\xft32\\Desktop\\13.xlsx");/输入地位和名字命名        workbook.write(out);        out.flush();        out.close();        System.out.println("写入胜利");    }}

利用这个办法咱们能够更无效的实现数据的收集。