我的Android笔记（八）—— 使用Jsoup解析Html

package com.android.web;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.http.util.ByteArrayBuffer;
import org.apache.http.util.EncodingUtils;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ListView;
import android.widget.SimpleAdapter;

public class _GetWebResoureActivity extends Activity {

Document doc;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

findViewById(R.id.button1).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
load();
}
});
}

protected void load() {

try {
doc = Jsoup.parse(new URL("http://www.baidu.com"), 5000);
} catch (MalformedURLException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
}

String body = doc.getElementsByTag("body").html();
Log.i("main", body);
}

/**
* @param urlString
* @return
*/
public String getHtmlString(String urlString) {
try {
URL url = null;
url = new URL(urlString);

URLConnection ucon = null;
ucon = url.openConnection();

InputStream instr = null;
instr = ucon.getInputStream();

BufferedInputStream bis = new BufferedInputStream(instr);

ByteArrayBuffer baf = new ByteArrayBuffer(500);
int current = 0;
while ((current = bis.read()) != -1) {
baf.append((byte) current);
}
return EncodingUtils.getString(baf.toByteArray(), "gbk");
} catch (Exception e) {
return "";
}
}
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >

<Button
android:id="@+id/button1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="加载" />

<ListView
android:id="@+id/listView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
</ListView>

</LinearLayout>