java实现京东登陆示例分享

package com.lkb.test;

import java.util.arraylist;
import java.util.hashmap;
import java.util.iterator;
import java.util.list;
import java.util.map;

import org.apache.http.httpresponse;
import org.apache.http.client.responsehandler;
import org.apache.http.client.entity.urlencodedformentity;
import org.apache.http.client.methods.httpget;
import org.apache.http.client.methods.httppost;
import org.apache.http.impl.client.basicresponsehandler;
import org.apache.http.impl.client.defaulthttpclient;
import org.apache.http.message.basicnamevaluepair;
import org.apache.http.message.bufferedheader;
import org.apache.http.protocol.http;

import com.util.constant;

public class jd {
    // the configuration items

   
    private static string redirecturl = "http://order.jd.com/center/list.action";
    private static string loginurl = "http://passport.jd.com/uc/login";
    // don't change the following url
    private static string renrenloginurl = "https://passport.jd.com/uc/loginservice";

    // the httpclient is used in one session
    private httpresponse response;
    private defaulthttpclient httpclient = new defaulthttpclient();

    public  map<string,string> getparams(){
     map<string,string> map = new hashmap<string,string>();
     string str = gettext(loginurl);
     string strs1[] = str.split("name=\"uuid\" value=\"");
     string strs2[] = strs1[1].split("\"/>");
     string uuid = strs2[0];
     map.put("uuid", uuid);
     system.out.println(strs2[0]);
     string str3s[] = strs1[1].split("<span class=\"clr\"></span><input type=\"hidden\" name=\"");
     string strs4[] = str3s[1].split("/>");
     string strs5[] = strs4[0].trim().split("\"");
     string key = strs5[0];
     string value = strs5[2];
     map.put(key, value);
     return map;
    }
    private boolean login() {
     map map = getparams();

        httppost httpost = new httppost(renrenloginurl);
        // all the parameters post to the web site
        list<basicnamevaluepair> nvps = new arraylist<basicnamevaluepair>();
        nvps.add(new basicnamevaluepair("returnurl", redirecturl));
        nvps.add(new basicnamevaluepair("loginname", constant.username));
        nvps.add(new basicnamevaluepair("nloginpwd", constant.password));
        nvps.add(new basicnamevaluepair("loginpwd", constant.password));
        iterator it = map.keyset().iterator();
        while(it.hasnext()) {
         string key = it.next().tostring();
         string value = map.get(key).tostring();
         nvps.add(new basicnamevaluepair(key, value));

        }

        try {
            httpost.setentity(new urlencodedformentity((list<? extends org.apache.http.namevaluepair>) nvps, http.utf_8));
            response = httpclient.execute(httpost);
        } catch (exception e) {
            e.printstacktrace();
            return false;
        } finally {
            httpost.abort();
        }
        return true;
    }

    private string getredirectlocation() {
     bufferedheader locationheader =  (bufferedheader) response.getfirstheader("location");
        if (locationheader == null) {
            return null;
        }
        return locationheader.getvalue();
    }

    private string gettext(string redirectlocation) {
        httpget httpget = new httpget(redirectlocation);
        responsehandler<string> responsehandler = new basicresponsehandler();
        string responsebody = "";
        try {
            responsebody = httpclient.execute(httpget, responsehandler);
        } catch (exception e) {
            e.printstacktrace();
            responsebody = null;
        } finally {
            httpget.abort();
            //httpclient.getconnectionmanager().shutdown();
        }
        return responsebody;
    }

    public void printtext() {
        if (login()) {        
         system.out.println(gettext(redirecturl));
           string redirectlocation = getredirectlocation();
            if (redirectlocation != null) {
                system.out.println(gettext(redirectlocation));
            }
        }
    }

    public static void main(string[] args) {
          jd renren = new jd();
          //renren.getparams();
          renren.printtext();
    }
}