人才引进公示抓包

最近在弄人才引进入户广州事宜，资料已经提交上去了，但不知啥时候才到公示，也不知自己在第几页，所以闲来无事写了一个查询脚本，一运行很快就知道自己有没有在公示了。

人才引进名单公示：
http://www.hrssgz.gov.cn/vsgzpiapp01/GZPI/Gateway/PersonIntroducePublicity.aspx

第一步右键查看网页源码：

第二步：使用fiddler抓包工具进行抓包分析

发现如下参数：

第三步：编写Java脚本

代码如下：

package com.pk4pk.inline;import java.io.IOException;import java.util.ArrayList;import java.util.List;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.NameValuePair;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.ResponseHandler;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.HttpPost;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils;/** *  * @Author pk4pk * @Email [e-mail] * @Date 2017年9月13日 * @TODO 人才引进查找是否有我 */public class FindMe {    private final static String url="http://www.hrssgz.gov.cn/vsgzpiapp01/GZPI/Gateway/PersonIntroducePublicity.aspx";    private static String view_state = "";    public static void main(String[] args) throws IOException, InterruptedException {        // TODO Auto-generated method stub        int pageIndex = 0;        while (true) {            System.out.println("没有找到。。。。");            if (getHttpString(pageIndex).contains("<td>这里输入你的名字</td>")) {                break;            }            pageIndex++;            Thread.sleep(1000 * 3);        }        System.out.println("已经找到。。。。");    }    /**     * Post请求获取内容     * @param page     * @return     * @throws IOException     */    private static String getHttpString(int page) throws IOException {        System.out.println("page :" + page);        CloseableHttpClient httpclient = HttpClients.createDefault();        try {            HttpPost httpPost = new HttpPost(url);            if(page!=0){                List<NameValuePair> nvps = new ArrayList<NameValuePair>();                nvps.add(new BasicNameValuePair("__EVENTTARGET", "NextLBtn"));                nvps.add(new BasicNameValuePair("__EVENTARGUMENT", ""));                nvps.add(new BasicNameValuePair("__VIEWSTATE", view_state));                nvps.add(new BasicNameValuePair("__VIEWSTATEGENERATOR", "3C84D956"));                nvps.add(new BasicNameValuePair("ToPage", "" + page));                httpPost.setEntity(new UrlEncodedFormEntity(nvps));                System.out.println("Executing request " + httpPost.getRequestLine());            }            // Create a custom response handler            ResponseHandler<String> responseHandler = new ResponseHandler<String>() {                @Override                public String handleResponse(final HttpResponse response) throws ClientProtocolException, IOException {                    int status = response.getStatusLine().getStatusCode();                    if (status >= 200 && status < 300) {                        HttpEntity entity = response.getEntity();                        return entity != null ? EntityUtils.toString(entity) : null;                    } else {                        throw new ClientProtocolException("Unexpected response status: " + status);                    }                }            };            String responseBody = httpclient.execute(httpPost, responseHandler);            String resultResponseBody =responseBody;            System.out.println("-----------------page :"+page+"-----------------------");            System.out.println(responseBody);            //截取__VIEWSTATE的值            int index = responseBody.indexOf("<input type=\"hidden\" name=\"__VIEWSTATE\" id=\"__VIEWSTATE\" value=\"");            System.out.println("index :" + index);            responseBody=responseBody.substring(index+64, responseBody.length());            int endIndex=responseBody.indexOf("\"");            System.out.println("endIndex :" + endIndex);            view_state=responseBody.substring(0,endIndex);            System.out.println("view_state :"+view_state);            return resultResponseBody;        } finally {            httpclient.close();        }    }}

总结：关键要耐心和仔细分析抓包的数据，就像上面的__VIEWSTATE值，一开始以为只要改下ToPage字段就可以了，发现请求下来的都是同一页数据，后面再看网页源码才发现原来还需要_VIEWSTATE 值