利用java ，apache和android的方法来获取网络数据

<TextView
android:id="@+id/txtView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="buttonback"
android:text="点击获取返回数据"/>
//使用HTTP的post方法
public class HttpUrlConnectionAct extends Activity {
private TextView mTextView;
private Button button;
//某一服服務端的地址（本地地址/服务端端口/服务端文件夹名（web）/web文件夹里自动生成的web.xml里的自定义名）
private String httpUrl = "http://192.168.1.148:8080/ServletProject/firstservlet";

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTextView = (TextView) findViewById(R.id.txtView);

}
//android按鈕点击监听
public void buttonback(View v) {
new AsyncTask<String, Void, String>() {
@Override
protected String doInBackground(String... params) {

String content = getApacheData(httpUrl);
Log.e("content", content + " ");
return content;
}

@Override
protected void onPostExecute(String result) {

mTextView.setText(result);
}

}.execute(httpUrl);

}

/* 利用apache获取网络数据 */
private String getApacheData(String url) {

Log.e("aa", "sssss");
StringBuffer sb = new StringBuffer();
HttpClient httpClient = new DefaultHttpClient();

//用post传数据
HttpPost httpPost = new HttpPost(url);
BasicNameValuePair username = new BasicNameValuePair("username",
"general");
BasicNameValuePair password = new BasicNameValuePair("password",
"12315");
BasicNameValuePair sex = new BasicNameValuePair("sex", "男");
ArrayList<BasicNameValuePair> parPairs = new ArrayList<BasicNameValuePair>();
parPairs.add(username);
parPairs.add(password);
parPairs.add(sex);

Log.e("bb", "sssss");
UrlEncodedFormEntity urlef = null;
try {
urlef = new UrlEncodedFormEntity(parPairs, "utf-8");
} catch (UnsupportedEncodingException e1) {

e1.printStackTrace();
}
httpPost.setEntity(urlef);
HttpResponse httpResponse = null;
try {
httpResponse = httpClient.execute(httpPost);
} catch (ClientProtocolException e1) {

e1.printStackTrace();
} catch (IOException e1) {

e1.printStackTrace();
}

Log.e("cc", "sssss");

try {

HttpEntity httpEntity = httpResponse.getEntity();
//用输入流接收
InputStream is = httpEntity.getContent();

int statusCode = httpResponse.getStatusLine().getStatusCode();
Log.v("statusCode", statusCode + "");
if (statusCode == 200) {
// 创建包装流
BufferedReader br = new BufferedReader(
new InputStreamReader(is));
// 定义String类型用于存储单行数据
String line = null;
// 创建StringBuffer对象用于存储所有数据
sb = new StringBuffer();
while ((line = br.readLine()) != null) {
sb.append(line);
}
}
} catch (IOException e) {
e.printStackTrace();
}

return sb.toString();

}
}
//get方法
/*利用apache获取网络数据*/
private String getApacheData(String url){
InputStream is=null;
BufferedReader br=null;
StringBuffer sb = new StringBuffer();
HttpClient httpClient=new DefaultHttpClient();
HttpGet httpGet=new HttpGet(url);

try {
HttpResponse httpResponse=httpClient.execute(httpGet);
HttpEntity httpEntity=httpResponse.getEntity();
is=httpEntity.getContent();

int statusCode=httpResponse.getStatusLine().getStatusCode();
if (statusCode==200){
//创建包装流
br=new BufferedReader(new InputStreamReader(is));
//定义String类型用于存储单行数据
String line=null;
//创建StringBuffer对象用于存储所有数据
sb=new StringBuffer();
while ((line=br.readLine())!=null){
sb.append(line);
}
}
} catch (IOException e) {
e.printStackTrace();
}

return sb.toString();
}

//JAVA获取网络数据
/*用JAVA从网络获取数据*/
private String getIntentData(String url){
InputStream is=null;
BufferedReader br=null;
StringBuffer sb = null;
HttpURLConnection connection=null;
try {
//封装访问服务器地址
URL url1=new URL(url);
//打开对服务器的链接
connection=(HttpURLConnection)url1.openConnection();

connection.setRequestMethod("GET");
//链接服务器
connection.connect();
//得到输入流
is=connection.getInputStream();
//创建包装流
br=new BufferedReader(new InputStreamReader(is));
//定义String类型用于存储单行数据
String line=null;
//创建StringBuffer对象用于存储所有数据
sb=new StringBuffer();
while ((line=br.readLine())!=null){
sb.append(line);
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}finally {
connection.disconnect();
if (br!=null){
try {
br.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (is!=null){
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return sb.toString();
}

//Android获取网络数据
/*利用安卓方法获取数据*/
private String getAndroidData(String url){
InputStream is=null;
BufferedReader br=null;
StringBuffer sb=new StringBuffer();
AndroidHttpClient androidHttpClient=AndroidHttpClient.newInstance("");
HttpGet httpGet=new HttpGet(url);

try {
HttpResponse httpResponse=androidHttpClient.execute(httpGet);

HttpEntity httpEntity=httpResponse.getEntity();
is=httpEntity.getContent();

int statusCode=httpResponse.getStatusLine().getStatusCode();
if (statusCode==200){
//创建包装流
br=new BufferedReader(new InputStreamReader(is));
//定义String类型用于存储单行数据
String line=null;
//创建StringBuffer对象用于存储所有数据

while ((line=br.readLine())!=null){
sb.append(line);
}
}
} catch (IOException e) {
e.printStackTrace();
}
return sb.toString();
}