问个java网页操作的问题！

renjianxin0554 2015-08-19 11:22:04

获取方法



import java.net.URLEncoder;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import org.json.JSONArray;

import org.json.JSONObject;

import org.jsoup.Jsoup;

import org.jsoup.nodes.Document;

public class BaiduNetDisk {

    public static List<Map<String, Object>> getUrl(String url) throws Exception {

        List<String> fs_id = new ArrayList<String>();

        List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();

        Document doc = Jsoup.connect(url).get();

        String html = doc.toString();

        int a = html.indexOf("{\"typicalPath");

        int b = html.indexOf("yunData.getCon");

        int sign_head = html.indexOf("yunData.SIGN = \"");

        int sign_foot = html.indexOf("yunData.TIMESTAMP");

        int time_head = html.indexOf("yunData.TIMESTAMP = \"");

        int time_foot = html.indexOf("yunData.SHARE_UK");

        int share_id_head = html.indexOf("yunData.SHARE_ID = \"");

        int share_id_foot = html.indexOf("yunData.SIGN ");

        String sign = html.substring(sign_head, sign_foot);

        sign = sign.substring(sign.indexOf("\"") + 1, sign.indexOf("\";"));

        String time = html.substring(time_head, time_foot);

        time = time.substring(time.indexOf("\"") + 1, time.indexOf("\";"));

        String share_id = html.substring(share_id_head, share_id_foot);

        share_id = share_id.substring(share_id.indexOf("\"") + 1,

                share_id.indexOf("\";"));

        System.out.println(share_id);

        html = html.substring(a, b);

        a = html.indexOf("{\"typicalPath");

        b = html.indexOf("};");

        JSONObject jsonObject = new JSONObject(html.substring(a, b + 1));

        String uk = jsonObject.getString("uk");

        String shareid = jsonObject.getString("shareid");

        String path = URLEncoder.encode(jsonObject.getString("typicalPath"),

                "utf-8");

        jsonObject = new JSONObject(jsonObject.getString("file_list"));

        JSONArray jsonArray = new JSONArray(jsonObject.getString("list"));

        jsonObject = jsonArray.getJSONObject(0);

        String app_id = jsonObject.getString("app_id");

        if (jsonObject.getString("isdir").equals("1")) {

            String url1 = "http://pan.baidu.com/share/list?uk="

                    + uk

                    + "&shareid="

                    + shareid

                    + "&page=1&num=100&dir="

                    + path

                    + "&order=time&desc=1&_="

                    + time

                    + "&bdstoken=c51077ce0e0e313a16066612a13fbcd4&channel=chunlei&clienttype=0&web=1&app_id="

                    + app_id;

            String fileListJson = HttpRequest.getData(url1);

            System.out.println(fileListJson);

            jsonObject =new JSONObject(fileListJson);

            jsonArray = new JSONArray(jsonObject.getString("list"));

        }

        final int size = jsonArray.length();

        for (int i = 0; i < size; i++) {

            Map<String, Object> map = new HashMap<String, Object>();

            jsonObject = jsonArray.getJSONObject(i);

            String fileName = jsonObject.getString("server_filename");

            //储存文件名

            map.put("fileName", fileName);

            fs_id.add(jsonObject.getString("fs_id"));

            String fileInfo = HttpRequest

                    .getData("http://pan.baidu.com/api/sharedownload?sign="

                            + sign

                            + "×tamp="

                            + time

                            + "&bdstoken=c51077ce0e0e313a16066612a13fbcd4&channel=chunlei&clienttype=0&web=1&app_id=250528&encrypt=0&product=share&uk="

                            + uk + "&primaryid=" + share_id + "&fid_list=%5B"

                            + fs_id.get(i) + "%5D");

            JSONObject json_data = new JSONObject(fileInfo);

            if (json_data.getString("errno").equals("0")) {

                JSONArray jsonArray2 = new JSONArray(json_data.getString("list"));

                json_data = jsonArray2.getJSONObject(0);

                //储存文件下载实链

                map.put("url", json_data.getString("dlink"));

            } else if (json_data.getString("errno").equals("-20")) {

                return null;

                // String getVerCode();

            } else {

                return null;

            }

            list.add(map);

        }

        return list;

    }

}

HttpRequest.java



import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.io.RandomAccessFile;

import java.lang.reflect.Method;

import java.net.HttpURLConnection;

import java.net.URL;

public class HttpRequest {

    public static String getData(String u) throws Exception {

        String re="";

                URL url = new URL(u);

        HttpURLConnection httpURLConnection = (HttpURLConnection) url

                .openConnection();

        httpURLConnection.setRequestMethod("GET");

        httpURLConnection.setDoInput(true);

        httpURLConnection.setDoOutput(true);

        InputStream is = httpURLConnection.getInputStream();

        InputStreamReader isr = new InputStreamReader(is);

        BufferedReader bufferedReader = new BufferedReader(isr);

        String iL = "";

        while ((iL = bufferedReader.readLine()) != null) {

            re += iL + "\n";

        }

          

        return re;

    }

}

问题，我是学易语言的。大神发给我了这个java代码。请问，他是怎么实现获取sign和timestamp的？
我好方便转换为易语言程序语言

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renjianxin0554 2015-08-20

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那个sign 怎么算的？有三个呢 sign1 sign2 sign3

迷林 2015-08-20

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引用 6 楼 rui888 的回复:

[quote=引用 5 楼 wi496481 的回复:] [quote=引用 4 楼 rui888 的回复:] sign: base64Encode(yunData.sign2(yunData.sign3, yunData.sign1)), 这个方法做的。具体里面逻辑不知道。

小萝莉，到那都能看见你的身影，你一天好像都没事可做啊，最近都快忙死了，抽点时间上来看看，发现你无处不在啊 [/quote]说说你们项目什么框架，什么高深技术来。[/quote] 没啥技术，就是对接德国和美国的物流接口，都 TMD 快吐了

renjianxin0554 2015-08-20

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引用 4 楼 rui888 的回复:

sign: base64Encode(yunData.sign2(yunData.sign3, yunData.sign1)), 这个方法做的。具体里面逻辑不知道。

function s(j, r) {
    var a = [];
    var p = [];
    var o = \x22\x22;
    var v = j.length;
    for (var q = 0; q < 256; q++) {
        a[q] = j.substr((q % v), 1).charCodeAt(0);
        p[q] = q
    }
    for (var u = q = 0; q < 256; q++) {
        u = (u + p[q] + a[q]) % 256;
        var t = p[q];
        p[q] = p[u];
        p[u] = t
    };
    for (var i = u = q = 0; q < r.length; q++) {
        i = (i + 1) % 256;
        u = (u + p[i]) % 256;
        var t = p[i];
        p[i] = p[u];
        p[u] = t;
        k = p[((p[i] + p[u]) % 256)];
        o += String.fromCharCode(r.charCodeAt(q) ^ k)
    }
    return o;
}

调试提示出错。他应该是用sign2 把sign1和sign3 作用输出的吧。可是为什么出错

tony4geek 2015-08-20

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引用 5 楼 wi496481 的回复:

[quote=引用 4 楼 rui888 的回复:] sign: base64Encode(yunData.sign2(yunData.sign3, yunData.sign1)), 这个方法做的。具体里面逻辑不知道。

小萝莉，到那都能看见你的身影，你一天好像都没事可做啊，最近都快忙死了，抽点时间上来看看，发现你无处不在啊 [/quote]说说你们项目什么框架，什么高深技术来。

迷林 2015-08-20

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引用 4 楼 rui888 的回复:

sign: base64Encode(yunData.sign2(yunData.sign3, yunData.sign1)), 这个方法做的。具体里面逻辑不知道。

小萝莉，到那都能看见你的身影，你一天好像都没事可做啊，最近都快忙死了，抽点时间上来看看，发现你无处不在啊

tony4geek 2015-08-20

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sign: base64Encode(yunData.sign2(yunData.sign3, yunData.sign1)), 这个方法做的。具体里面逻辑不知道。

renjianxin0554 2015-08-20

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引用 2 楼 rui888 的回复:

String html = doc.toString(); int a = html.indexOf("{\"typicalPath"); int b = html.indexOf("yunData.getCon"); int sign_head = html.indexOf("yunData.SIGN = \""); int sign_foot = html.indexOf("yunData.TIMESTAMP"); int time_head = html.indexOf("yunData.TIMESTAMP = \""); int time_foot = html.indexOf("yunData.SHARE_UK"); 是在html 中 index 找到后截取的。

这个我解决了新问题又来了网页里截取的代码：

yunData.sign1 = '6d3c9955129c765f5b00df0b18470304de876a5f';
        
                    yunData.sign2 = 'function s(j,r){var a=[];var p=[];var o=\x22\x22;var v=j.length;for(var q=0;q<256;q++){a[q]=j.substr((q%v),1).charCodeAt(0);p[q]=q}for(var u=q=0;q<256;q++){u=(u+p[q]+a[q])%256;var t=p[q];p[q]=p[u];p[u]=t}for(var i=u=q=0;q<r.length;q++){i=(i+1)%256;u=(u+p[i])%256;var t=p[i];p[i]=p[u];p[u]=t;k=p[((p[i]+p[u])%256)];o+=String.fromCharCode(r.charCodeAt(q)^k)}return o};';
        
                    yunData.sign3 = 'e8c7d729eea7b54551aa594f942decbe';
        
                    yunData.timestamp = '1440034296';

这个是获取sign的脚本代码：

 url = RestAPI.DOWN_GET_DLINK;
            if ("function" != typeof yunData.sign2) try {
                yunData.sign2 = new Function("return " + yunData.sign2)();
            } catch(o) {}
            data = {
                sign: base64Encode(yunData.sign2(yunData.sign3, yunData.sign1)),
                timestamp: yunData.timestamp,
                bdstoken: yunData.MYBDSTOKEN,
                fidlist: fidlist,
                type: (items.length > 1 || items[0]['isdir']) ? "batch": "dlink"

请问这个sign2是干嘛的？怎么算出最终的sign

tony4geek 2015-08-20

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String html = doc.toString(); int a = html.indexOf("{\"typicalPath"); int b = html.indexOf("yunData.getCon"); int sign_head = html.indexOf("yunData.SIGN = \""); int sign_foot = html.indexOf("yunData.TIMESTAMP"); int time_head = html.indexOf("yunData.TIMESTAMP = \""); int time_foot = html.indexOf("yunData.SHARE_UK"); 是在html 中 index 找到后截取的。