获取网页数据的方法，适用于Android系统的指南

获取网页数据的方法，适用于Android系统的指南

这个例子来自于Android学习手册，该手册包含9个章节和108个例子。所有的例子都是可交互和可运行的，并且源码采用了Android Studio目录结构，代码部分采用高亮显示。文档的结构图能够帮助快速定位所需内容。你可以通过360手机助手下载该学习手册，该应用的图标上有一个贝壳标志。

//第一种

/**获取参数（ArrayListnameValuePairs,String url）后post给远程服务器

* 将获得的返回结果（String）返回给调用者

* 本函数适用于查询数量较少的时候

*/

public String posturl(ArrayListnameValuePairs,String url){

String result = ＂＂;

String tmp= ＂＂;

InputStream is = null;

try{

HttpClient httpclient = new DefaultHttpClient();

HttpPost httppost = new HttpPost(url);

httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

HttpResponse response = httpclient.execute(httppost);

HttpEntity entity = response.getEntity();

is = entity.getContent();

}catch(Exception e){

return ＂Fail to establish http connection!＂;

}

try{

BufferedReader reader = new BufferedReader(new InputStreamReader(is,＂utf-8＂));

StringBuilder sb = new StringBuilder();

String line = null;

while ((line = reader.readLine()) != null) {

sb.append(line + ＂n＂);

}

is.close();

tmp=sb.toString();

}catch(Exception e){

return ＂Fail to convert net stream!＂;

}

try{

JSONArray jArray = new JSONArray(tmp);

for(int i=0;iJSONObject json_data = jArray.getJSONObject(i);

Iteratorkeys=json_data.keys();

while(keys.hasNext()){

result += json_data.getString(keys.next().toString());

}

}

}catch(JSONException e){

return ＂The URL you post is wrong!＂;

}

return result;

}

android开发中如何获取上网记录

需要在AndroidManifest.xml中加权限。

String string = null;

ContentResolver contentResolver = getContentResolver();

Cursor cursor = contentResolver.query(Uri.parse(＂content://browser/bookmarks＂), new String[]{＂url＂}, null, null, null);

while (cursor != null & cursor.moveToNext()) {

string = cursor.getString(cursor.getColumnIndex(＂url＂));

Log.d(＂debug＂, string == null ? ＂null＂:string);

}

安卓调用html的页面怎么获取html页面的数据

展开全部

首先你需要导入：HttpClient、HttpGet

然后通过HttpGet通过url发送request

通过HttpClient的execute获取response

解析返回的内容

HttpClient client = new DefaultHttpClient();

HttpGet request = new HttpGet(url);

HttpResponse response = client.execute(request);

String html = ＂＂;

InputStream in = response.getEntity().getContent();

BufferedReader reader = new BufferedReader(new InputStreamReader(in));

StringBuilder str = new StringBuilder();

String line = null;

while((line = reader.readLine()) != null)

{

str.append(line);

}

in.close();

html = str.toString();

以上是获取网页数据的方法，适用于Android系统的指南的详细内容。更多信息请关注PHP中文网其他相关文章！