实验5——网络访问与服务

实验指导（五）网络访问与服务一、实验目的本次实验的目的是让大家通过一些小例子，学习和掌握Android网络访问方法。二、实验要求1、 了解手机WEB网站访问的编程方法2、 通过网络进行数据访问三、实验步骤项目界面：使用HttpClient来提交或者获取server端的数据 。Get：Post1、创建项目新建一个Android工程，目录结构如下图:2、添加布局文件修改main.xml布局文件，如下 3、创建Activitypublic class slide8_3 extends Activity public String myhttpget(String url) throws Exception String out = null;try HttpClient client = new DefaultHttpClient();HttpGet request = new HttpGet(url);HttpResponse response = client.execute(request);out = EntityUtils.toString(response.getEntity(); catch (IOException e) e.printStackTrace();return out;public String myhttppost(String url, String name, String value)throws Exception String out = null;try HttpClient client = new DefaultHttpClient();HttpPost request = new HttpPost(url);List postParameters = new ArrayList();postParameters.add(new BasicNameValuePair(name, value);UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(postParameters);request.setEntity(formEntity);HttpResponse response = client.execute(request);out = EntityUtils.toString(response.getEntity(); catch (IOException e) e.printStackTrace();return out;Overridepublic void onCreate(Bundle savedInstanceState) super.onCreate(savedInstanceState);setContentView(R.layout.main);final TextView textView = (TextView) findViewById(R.id.TextView01);final EditText editText = (EditText) findViewById(R.id.editText1);final EditText name = (EditText) findViewById(R.id.editText2);final EditText value = (EditText) findViewById(R.id.editText3);Button btn = (Button) this.findViewById(R.id.Button1);btn.setOnClickListener(new Button.OnClickListener() public void onClick(View v) try textView.setText(myhttpget(editText.getText().toString()+ ? + name.getText().toString() + =+ value.getText().toString(); catch (Exception e) e.printStackTrace(););Button btn2 = (Button) this.findViewById(R.id.Button2);btn2.setOnClickListener(new Button.OnClickListener() public void onClick(View v) try textView.setText(myhttppost(editText.getText().toString(),name.getText().toString(), value.getText().toString(); c