抓jsoup_01_方案代码

1、方案选择:

  1.1、HttpClient库 获取 原始的 json数据

  1.2、JSON库 取得 我们需要的HTML内容

  1.3、使用 jsoup 解析 我们取得的HTML内容

 

2、不直接使用 jsoup,原因:

  2.1、它会自动补全 HTML的头和尾(<html/><body/>等),jsoup中没有这个

    处理方法:手动指定 Parser.xmlParser()

  2.2、如果属性 没有用 2个双引号包裹起来,它会将 这2个双引号补全... 这个功能 在jsoup里面没法关闭...

 

3、示例代码:

  3.1、工具类

package z_utils;

import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;

public class TzHttpClient
{
    public static void main(String[] args) throws Exception
    {
        String strRtn = PostZ(
            "http://ajax.mianbao99.com/vod-showlist-id-8-order-time-c-3719-p-2.html",
            null,
            true);
        System.out.println(strRtn);
    }
    
// ***

    @SuppressWarnings("deprecation")
    public static String PostZ(String _strUrl, String _strParam, boolean _bNeedResponse) throws Exception
    {
        //post请求返回结果
        DefaultHttpClient httpClient = new DefaultHttpClient();
        HttpPost method = new HttpPost(_strUrl);
        if (null != _strParam)
        {
            //解决中文乱码问题
            StringEntity entity = new StringEntity(_strParam, "utf-8");
            entity.setContentEncoding("UTF-8");
            entity.setContentType("application/json");
            method.setEntity(entity);
        }
        HttpResponse result = httpClient.execute(method);
        /**请求发送成功,并得到响应**/
        if (result.getStatusLine().getStatusCode() == 200)
        {
            if (! _bNeedResponse)
                return null;
            String str = EntityUtils.toString(result.getEntity());
            //System.out.println(str);
            return str;
        }
        return null;
    }
    
    @SuppressWarnings("deprecation")
    public static String GetZ(String _strUrl) throws Exception
    {
        DefaultHttpClient client = new DefaultHttpClient();
        //发送get请求
        HttpGet request = new HttpGet(_strUrl);
        HttpResponse response = client.execute(request);

        /**请求发送成功,并得到响应**/
        if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK)
        {
            /**读取服务器返回过来的json字符串数据**/
            String strResult = EntityUtils.toString(response.getEntity());
            //System.out.println(strResult);
            return strResult;
        }
        System.out.println("get请求提交失败:" + _strUrl);
        return null;
    }
}

  3.2、测试 功能代码

package test;

import org.jsoup.Connection;
///import org.jsoup.Connection;
import org.jsoup.Jsoup;
import org.jsoup.nodes.*;
import org.jsoup.parser.Parser;

import net.sf.json.*;
import z_utils.TzHttpClient;

public class Ttest01
{
    public static void main(String[] args) throws Exception
    {
        String strHtml = TzHttpClient.GetZ("http://ajax.mianbao99.com/vod-showlist-id-8-order-time-c-3719-p-2.html");
        JSONObject jsoupObj = JSONObject.fromObject(strHtml);
        if (! jsoupObj.containsKey("ajaxtxt"))
            return;
        
//        Connection conn = null;
//        conn.parser(Parser.xmlParser());
        String strAjaxtxt = jsoupObj.getString("ajaxtxt");
        Document doc =  Jsoup.parse(strAjaxtxt, "", Parser.xmlParser());
        System.out.println(doc.html());
    }

}

 

4、

 

posted @ 2016-10-19 15:57  JavaSkill  阅读(164)  评论(0编辑  收藏  举报