百度地图api中关于poi检索的内容实际上是比较少的。

如果想做poi的介绍界面，需要 poi的图片。。。但是百度地图api中只提供了poi的url。没办法，用正则表达式自己搞！

一开始遇到的问题是无法解析getDetailUrl()的源码，后来发现这个url是个废弃的

有么有搞错

自己构建如下"http://map.baidu.com/detail?qt=ninf&uid="+uid.get(i)+"&detail="+type.get(i)"

对于cater类型的网页，获取图片的正则表达式为

"(?<=)"

关键源码如下：

public class webContent {

public byte[] readStream(InputStream inputStream) throws Exception {

byte[] buffer = new byte[1024];

int len = -1;

ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();

while ((len = inputStream.read(buffer)) != -1) {

byteArrayOutputStream.write(buffer, 0, len);

}

inputStream.close();

byteArrayOutputStream.close();

return byteArrayOutputStream.toByteArray();

}

public String testGetHtml(String urlpath) throws Exception {

URL url = new URL(urlpath);

HttpURLConnection conn = (HttpURLConnection) url.openConnection();

conn.setConnectTimeout(6 * 1000);

// StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder().detectDiskReads().detectDiskWrites().detectNetwork().penaltyLog().build());

// StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder().detectLeakedSqlLiteObjects().detectLeakedClosableObjects().penaltyLog().penaltyDeath().build());

conn.setRequestMethod("GET");

if (conn.getResponseCode() == 200) {

InputStream inputStream = conn.getInputStream();

byte[] data = readStream(inputStream);

Log.e("字节数组长度", data.length+"个字节");

String html = new String(data);

return html;

}

return null;

}

public String getTitle(String s) {

String regex;

String title = "";

ArrayList list = new ArrayList();

regex = "(?<=)";

Pattern pa = Pattern.compile(regex);

Matcher ma = pa.matcher(s);

while (ma.find()) {

list.add(ma.group());

}

for (int i = 0; i < list.size(); i++) {

title = title + list.get(i);

}

return (title);

}public ImageLoader loadImage(String  url,Context context){

RequestQueue requestQueue = Volley.newRequestQueue(context);

final LruCache lruCache = new LruCache(50);

ImageCache imageCache = new ImageCache() {

@Override

public void putBitmap(String key, Bitmap value) {

lruCache.put(key, value);

}

@Override

public Bitmap getBitmap(String key) {

return lruCache.get(key);

}

};

ImageLoader imageLoader = new ImageLoader(requestQueue, imageCache);

return imageLoader;

}}