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以下是测试demo代码,可以下载附件自己测试 package com.example.androidtest; import java.io.BufferedInputStream; import java.io.BufferedReader; import java.io.ByteArrayOutputStream; import java.io.DataInputStream; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; import java.net.URLConnection; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.util.ByteArrayBuffer; import org.apache.http.util.EncodingUtils; import org.jsoup.Jsoup; import org.jsoup.nodes.Document; import android.support.v7.app.ActionBarActivity; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.webkit.WebView; import android.widget.TextView; import android.annotation.SuppressLint; import android.os.Bundle; public class MainActivity extends ActionBarActivity implements OnClickListener { private static final String SUDOKU_RANKING_TXT = "http://192.168.66.115:8080/sudoku/ranking.txt"; URL myUrl; DataInputStream dis; View main; private Document doc; private TextView t1; @SuppressLint("NewApi") @Override public void onClick(View v) { int i = main.getSystemUiVisibility(); if (i == View.SYSTEM_UI_FLAG_HIDE_NAVIGATION) { main.setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE); } else if (i == View.SYSTEM_UI_FLAG_VISIBLE) { main.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE); } else if (i == View.SYSTEM_UI_FLAG_LOW_PROFILE) { main.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION); } } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); main = LayoutInflater.from(this).inflate(R.layout.activity_main, null); // main.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION); // main.setOnClickListener(this); setContentView(main); t1 = (TextView) findViewById(R.id.t1); eee(); // WebView broser = new WebView(this); } private void ddd() { // try { // String spec = "http://www.sina.cn"; // myUrl = new URL(spec); // dis = new DataInputStream(myUrl.openStream()); // while (dis.readLine() != null) { // String readLine = dis.readLine(); // System.out.println(readLine); // } // // getHtmlString(spec); // dis.close(); // } catch (Exception e) { // System.out.println("Error"); // } load(); // SpannableString ss = new SpannableString("Click here to baidu.com"); // ss.setSpan(new StyleSpan(Typeface.BOLD), 0, 6, // Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); // ss.setSpan(new URLSpan("http://www.baidu.com"), 14, 23, // Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); // t1.setMovementMethod(LinkMovementMethod.getInstance()); } private void eee() { new Thread(new Runnable() { @Override public void run() { HttpClient httpClient = new DefaultHttpClient(); HttpPost request; try { request = new HttpPost(SUDOKU_RANKING_TXT); HttpResponse response = httpClient.execute(request); if (response.getStatusLine().getStatusCode() == 200) { StringBuilder builder = new StringBuilder(); BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent())); String str2 = ""; for (String s = reader.readLine(); s != null; s = reader.readLine()) { builder.append(s); } Log.i("TAG", "data :" + builder.toString()); // 从网站获取信息 try { String readParse = readParse(SUDOKU_RANKING_TXT); Log.e("tag", readParse); URL url = new URL(SUDOKU_RANKING_TXT); String string = getUrl(url); Log.e("tag", string); } catch (Exception e) { e.printStackTrace(); } } } catch (Exception e) { e.printStackTrace(); } } }).start(); } /** * 从指定的URL中获取数组 * * @param urlPath * @return * @throws Exception */ public static String readParse(String urlPath) throws Exception { ByteArrayOutputStream outStream = new ByteArrayOutputStream(); byte[] data = new byte[1024]; int len = 0; URL url = new URL(urlPath); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); InputStream inStream = conn.getInputStream(); while ((len = inStream.read(data)) != -1) { outStream.write(data, 0, len); } inStream.close(); return new String(outStream.toByteArray());// 通过out.Stream.toByteArray获取到写的数据 } private String getUrl(URL url) { String str = null; try { URLConnection uc = url.openConnection(); InputStream is = uc.getInputStream(); BufferedInputStream bis = new BufferedInputStream(is); ByteArrayBuffer baf = new ByteArrayBuffer(2048); int cun = 0; while ((cun = bis.read()) != -1) { baf.append((byte) cun); } str = EncodingUtils.getString(baf.toByteArray(), "UTF-8"); } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return str; } protected void load() { try { doc = Jsoup.parse(new URL("http://www.sina.cn"), 5000); Log.e("load", doc.toString()); } catch (MalformedURLException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } } /** * @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 ""; } } /** * jsoup提取src路径,下载网站图片 * * @author Administrator * */ /* * class DownImages { private static int COUNT = 0; private static int * DOWN_COUNT = 0; * * public static void jsoupHTML(String urlPath) throws Exception { Document * doc = Jsoup.connect(urlPath).timeout(1000000).get(); // :当前页中的图片 Elements * srcLinks = doc.select("img[src$=.jpg]"); for (Element link : srcLinks) { * // :剔除标签,只剩链接路径 String p_w_picpathsPath = link.attr("src"); * System.out.println("当前访问路径:" + p_w_picpathsPath); getImages(p_w_picpathsPath, * "d://p_w_picpaths//0000" + ++COUNT + ".jpg"); } * * // :提取网站中所有的href连接 Elements linehrefs = doc.select("a[href]"); * * for (Element linehref : linehrefs) { String lihr = linehref.attr("href"); * if (lihr.length() > 4) { String ht = lihr.substring(0, 4); String htt = * lihr.substring(0, 1); if (!ht.equals("http") && htt.equals("/")) { lihr = * urlPath + lihr; } if (lihr.substring(0, 4).equals("http")) { Document * docs = Jsoup.connect(lihr).timeout(1000000).get(); Elements links = * docs.select("img[src$=.jpg]"); for (Element link : links) { // * :剔除标签,只剩链接路径 String p_w_picpathsPath = link.attr("src"); * System.out.println("当前访问路径:" + p_w_picpathsPath); getImages(p_w_picpathsPath, * "d://p_w_picpaths//0000" + COUNT++ + ".jpg"); } } } } } *//** * @param urlPath * 图片路径 * @throws Exception */ /* * public static void getImages(String urlPath, String fileName) throws * Exception { URL url = new URL(urlPath);// :获取的路径 // :http协议连接对象 * HttpURLConnection conn = (HttpURLConnection) url.openConnection(); * conn.setRequestMethod("GET"); conn.setReadTimeout(6 * 10000); if * (conn.getResponseCode() < 10000) { InputStream inputStream = * conn.getInputStream(); byte[] data = readStream(inputStream); if * (data.length > (1024 * 10)) { FileOutputStream outputStream = new * FileOutputStream(fileName); outputStream.write(data); * System.err.println("第" + ++DOWN_COUNT + "图片下载成功"); outputStream.close(); * } } * * } *//** * 读取url中数据,并以字节的形式返回 * * @param inputStream * @return * @throws Exception */ /* * public static byte[] readStream(InputStream inputStream) throws Exception * { ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); * byte[] buffer = new byte[1024]; int len = -1; while ((len = * inputStream.read(buffer)) != -1) { outputStream.write(buffer, 0, len); } * outputStream.close(); inputStream.close(); return * outputStream.toByteArray(); } * * public static void main(String[] args) { try { String urlPath = * "http://www.22mm.cc/"; jsoupHTML(urlPath); } catch (Exception e) { * e.printStackTrace(); } finally { System.out.println("共访问" + COUNT + * "张图片,其中下载" + DOWN_COUNT + "张图片"); } } } * * * jsoup httpclient 爬取网页并下载google图标 * * 博客分类: java jsouphttpclient jsoup下载地址 http://www.jsoup.org httpclient下载地址 * http://hc.apache.org/downloads.cgi 其他jar包见附件 *//** * google logo 下载程序 */ /* * public abstract class Crawler { *//** * 使用google 翻译api * * @param en * @return */ /* * public String translateEnToCinese(String en) { * Translate.setHttpReferrer("http://www.xxx.com"); try { return * Translate.execute(en, Language.ENGLISH, Language.CHINESE); } catch * (Exception e) { e.printStackTrace(); } return ""; } *//** * 获取一个Map * * @return */ final String ENCORDING = "UTF-8"; public boolean upload(String filepath) throws Exception { String boundary = "---------------------------7db1c523809b2";// +java.util.UUID.randomUUID().toString();// // 分割线 File file = new File(filepath); String fileName = new String("哈哈嗨".getBytes(), "ISO-8859-1"); // 用来解析主机名和端口 URL url = new URL("http://192.168.1.120/dev/index.php/Device/UploadFile?filename=" + fileName + "&filetype=IMAGE"); // 用来开启连接 StringBuilder sb = new StringBuilder(); // 用来拼装请求 /* * // username字段 sb.append("--" + boundary + "\r\n"); * sb.append("Content-Disposition: form-data; name=\"username\"" + * "\r\n"); sb.append("\r\n"); sb.append(username + "\r\n"); * * // password字段 sb.append("--" + boundary + "\r\n"); * sb.append("Content-Disposition: form-data; name=\"password\"" + * "\r\n"); sb.append("\r\n"); sb.append(password + "\r\n"); */ // 文件部分 sb.append("--" + boundary + "\r\n"); sb.append("Content-Disposition: form-data; name=\"file\"; filename=\"" + filepath + "\"" + "\r\n"); sb.append("Content-Type: application/octet-stream" + "\r\n"); sb.append("\r\n"); // 将开头和结尾部分转为字节数组,因为设置Content-Type时长度是字节长度 byte[] before = sb.toString().getBytes(ENCORDING); byte[] after = ("\r\n--" + boundary + "--\r\n").getBytes(ENCORDING); // 打开连接, 设置请求头 HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setConnectTimeout(10000); conn.setRequestMethod("POST"); conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary); conn.setRequestProperty("Content-Length", before.length + file.length() + after.length + ""); conn.setDoOutput(true); conn.setDoInput(true); // 获取输入输出流 OutputStream out = conn.getOutputStream(); FileInputStream fis = new FileInputStream(file); // 将开头部分写出 out.write(before); // 写出文件数据 byte[] buf = new byte[1024 * 5]; int len; while ((len = fis.read(buf)) != -1) out.write(buf, 0, len); // 将结尾部分写出 out.write(after); InputStream in = conn.getInputStream(); InputStreamReader isReader = new InputStreamReader(in); BufferedReader bufReader = new BufferedReader(isReader); String line = null; String data = "getResult="; while ((line = bufReader.readLine()) != null) data += line; Log.e("fromServer", "result=" + data); boolean sucess = conn.getResponseCode() == 200; in.close(); fis.close(); out.close(); conn.disconnect(); return sucess; } /* * public Map<String, Object> getMap() { return new HashMap<String, * Object>(0); } *//** * 下载文件 * * @param url * 文件http地址 * @param dir * 目标文件 * @throws IOException */ /* * public void downloadFile(String url, String dir) throws Exception { * DefaultHttpClient httpClient = new DefaultHttpClient(); * HttpProtocolParams.setUserAgent(httpClient.getParams(), * "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.1.9) Gecko/20100315 Firefox/3.5.9" * ); HttpGet httpGet = new HttpGet(); httpGet.setURI(new * java.net.URI(url)); * * InputStream input = null; FileOutputStream output = null; try { * HttpResponse response = httpClient.execute(httpGet); HttpEntity entity = * response.getEntity(); input = entity.getContent(); File file = new * File(dir); output = FileUtils.openOutputStream(file); IOUtils.copy(input, * output); } catch (Exception e){ e.printStackTrace(); } finally { * IOUtils.closeQuietly(output); IOUtils.closeQuietly(input); } } */ /** * 处理GET请求,返回整个页面 * * @param url * 访问地址 * @param params * 编码参数 * @return * @throws Exception */ /* * public synchronized String doGet(String url, String... params) throws * Exception { DefaultHttpClient httpClient = new DefaultHttpClient(); // * 创建httpClient实例 HttpProtocolParams.setUserAgent(httpClient.getParams(), * "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.1.9) Gecko/20100315 Firefox/3.5.9" * ); String charset = "UTF-8"; if (null != params && params.length >= 1) { * charset = params[0]; } HttpGet httpGet = new HttpGet(); // 创建get方法实例 * String content = ""; httpGet.setURI(new java.net.URI(url)); try { * HttpResponse response = httpClient.execute(httpGet); // 执行请求,得到response对象 * int resStatu = response.getStatusLine().getStatusCode(); // 得到返回的状态码 if * (resStatu == HttpStatus.SC_OK) { // 200正常 HttpEntity entity = * response.getEntity(); // 获得相应的实体 if (entity != null) { // * 使用EntityUtils的toString方法,传递默认编码,在EntityUtils中的默认编码是ISO-8859-1 content = * EntityUtils.toString(entity, charset); } } } catch (Exception e) { * System.out.println("访问【" + url + "】出现异常!"); e.printStackTrace(); } * finally { // 关闭资源 httpGet.abort(); * httpClient.getConnectionManager().shutdown(); } return content; } } *//** * google logo 下载程序 */ /* * public class GoogleLogoCrawler extends Crawler { * * private static final String URL = * "http://www.logocollect.com/google/year.php?key=%y&page=%p"; * * private static final String LOGO_URL = * "http://www.logocollect.com/google/"; * * private static final String[] YEARS = new String[] { //"1998", "1999", * "2000", //"2001", "2002", "2003", "2004", "2005", "2006", "2007", "2008", * "2009", "2010", "2011", "2012" }; * * private static final String INDEX = * "http://www.logocollect.com/google/year.php?key=%y"; * * private static final String DIR_PATH = "D:\\googlelogos\\"; * * public void doStart() { JSONArray array = new JSONArray(); for (String * year : YEARS) { String ind = INDEX.replaceAll("%y", year); int pageCount * = getPageCount(ind); for (int i = 1; i < pageCount+1; i++) { String url = * URL.replaceAll("%y", year).replaceAll("%p", i + ""); String path = year + * "_" + i; start(url, array, DIR_PATH + path + "\\", path); } } try { * FileUtils.writeStringToFile(new File(DIR_PATH + "json"), * array.toString(), "UTF-8"); } catch (IOException e) { * e.printStackTrace(); } System.out.println(array); } * * public int getPageCount(String url) { int pageCount = 1; try { * org.jsoup.nodes.Document doc = Jsoup.connect(url).get(); * * String els = doc.html().toString(); int start = els.indexOf("总页数") + 4; * String temp = els.substring(start); int end = temp.indexOf(","); * pageCount = Integer.parseInt(els.substring(start,start+end)); * System.out.println(pageCount); } catch (IOException e) { * e.printStackTrace(); } return pageCount; } * * public void start(String url, JSONArray array, String dir, String path) { * try { String content = super.doGet(url); Document doc = * Jsoup.parse(content); Elements dds = doc.select(".img img"); * List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(0); * for (int i = 0; i < dds.size(); i++) { Element img = dds.get(i); String * src = img.select("img").first().attr("src"); String title = * img.select("img").first().attr("title"); Map<String, Object> map = * super.getMap(); * * map.put("url", LOGO_URL + src); map.put("title", title); * * list.add(map); } JSONArray tempJsonArray = new JSONArray(); for * (Map<String, Object> map : list) { JSONObject jsonObject = new * JSONObject(); String proxy = * StringUtils.substringAfterLast(map.get("url") .toString(), "."); long * date = new Date().getTime(); String name = date + "." + proxy; * jsonObject.put("url", map.get("url").toString()); jsonObject.put("dir", * name); jsonObject.put("title", map.get("title").toString()); * * // 翻译 // String dateZh = super.translateEnToCinese(map.get("date") // * .toString()); // String titleZh = * super.translateEnToCinese(map.get("title") // .toString()); // * json.put("title_zh_cn", dateZh + " - " + titleZh); * * // 下载图片 super.downloadFile(map.get("url").toString(), dir + name); * tempJsonArray.put(jsonObject); } array.put(new JSONObject().put(path, * tempJsonArray)); } catch (Exception e) { e.printStackTrace(); } } * * public static void main(String[] args) throws Exception { new * GoogleLogoCrawler().doStart(); } * * } */ }
package com.example.androidtest; import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; /*** * 工具类,检查当前网络状态 * * @author shuimu * */ public class NetUtil { public static boolean checkNet(Context context) { // 获取手机所以连接管理对象(包括wi-fi,net等连接的管理) ConnectivityManager conn = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); if (conn != null) { // 网络管理连接对象 NetworkInfo info = conn.getActiveNetworkInfo(); if (info != null && info.isConnected()) { // 判断当前网络是否连接 if (info.getState() == NetworkInfo.State.CONNECTED) { return true; } } } return false; } }
package com.example.androidtest; import java.sql.Timestamp; import java.text.SimpleDateFormat; /** * 时间戳工具类 * @author Administrator * */ public class GetTimeUtil { public static String getDate(String year, String month, String day) { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");// 24小时制 java.util.Date d = new java.util.Date(); ; String str = sdf.format(d); String nowyear = str.substring(0, 4); String nowmonth = str.substring(5, 7); String nowday = str.substring(8, 10); String result = null; int temp = Integer.parseInt(nowday) - Integer.parseInt(day); StringBuilder sb = new StringBuilder(); sb.append(Integer.parseInt(year) + "年"); sb.append(Integer.parseInt(month) + "月"); sb.append(Integer.parseInt(day) + "日"); result = sb.toString(); return result; } public static String getTime(int timestamp) { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String time = null; try { java.util.Date currentdate = new java.util.Date();// 当前时间 long i = (currentdate.getTime() / 1000 - timestamp) / (60); System.out.println(currentdate.getTime()); System.out.println(i); Timestamp now = new Timestamp(System.currentTimeMillis());// 获取系统当前时间 System.out.println("now-->" + now);// 返回结果精确到毫秒。 String str = sdf.format(new Timestamp(IntToLong(timestamp))); time = str.substring(11, 16); String year = str.substring(0, 4); String month = str.substring(5, 7); String day = str.substring(8, 10); System.out.println(str); System.out.println(time); System.out.println(getDate(year, month, day)); time = getDate(year,month, day); } catch (Exception e) { e.printStackTrace(); } return time; } // java Timestamp构造函数需传入Long型 public static long IntToLong(int i) { long result = (long) i; result *= 1000; return result; } public static void main(String[] args) { int timestamp = 1421856000; // 假设腾讯微博返回时间戳为秒 String time = GetTimeUtil.getTime(timestamp); System.out.println("timestamp-->" + time); // print timestamp-->7月12日15:59 } }
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