Android与服务器传递数据

手机端： package zhanghua.test.dataexchange; import java.io.DataInputStream; import java.io.DataOutputStream; import java.net.HttpURLConnection; import java.net.URL; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; public class DataExchange extends Activity { private EditText titleText; private EditText bodyText; @Override protected void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.note_edit); titleText = (EditText) findViewById(R.id.title); bodyText = (EditText) findViewById(R.id.body); Button confirmButton = (Button) findViewById(R.id.confirm); confirmButton.setOnClickListener(new View.OnClickListener() { public void onClick(View arg0) { // Bundle bundle = new Bundle(); // bundle.putString(Notepadv3.KEY_TITLE, // titleText.getText().toString()); // bundle.putString(Notepadv3.KEY_BODY, // bodyText.getText().toString()); // if (rowId != null) { // bundle.putLong(Notepadv3.KEY_ROW_ID, rowId); // } // setResult(RESULT_OK, null, bundle); // finish(); String u = "http://172.17.1.122:8083/ServerApp/ServletApp"; URL url = null; HttpURLConnection httpurlconnection = null; try { url = new URL(u); httpurlconnection = (HttpURLConnection) url .openConnection(); httpurlconnection.setDoOutput(true); httpurlconnection.setRequestMethod("POST"); // httpurlconnection.setRequestProperty("Content-Language","en-CA"); // httpurlconnection.setRequestProperty("Content-Type","application/x-www-form-urlencoded"); // httpurlconnection.setRequestProperty("Connection","Keep-Alive"); // //始终使用同一个HTTP连接来多次传递数据 // 手机传给电脑的数据 DataOutputStream dos = new DataOutputStream( httpurlconnection.getOutputStream()); dos.writeUTF(titleText.getText().toString()); dos.writeUTF(bodyText.getText().toString()); dos.flush(); dos.close(); // httpurlconnection.getOutputStream().flush(); // httpurlconnection.getOutputStream().close(); int code = httpurlconnection.getResponseCode(); System.out.println("code " + code); // 接收servlet响应数据 DataInputStream dis = new DataInputStream(httpurlconnection .getInputStream()); String return1Str = dis.readUTF(); String return2Str = dis.readUTF(); System.out.println("手机接收到servlet端传来的第一个参数为:" + return1Str); titleText.setText(return1Str); // 显示 // 主要起调试的作用，调试的结果将显示在WTK的控制台中 System.out.println("手机接收到servlet端传来的第二个参数为:" + return2Str); bodyText.setText(return2Str); // 显示 } catch (Exception e) { e.printStackTrace(); } finally { if (httpurlconnection != null) httpurlconnection.disconnect(); } } }); } } 2、电脑端 package quqi; import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.IOException; import java.io.InputStream; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * @date 2007/12/10 * @author 张华 * @descrip 模拟服务器端 */ public class ServletApp extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { response.setContentType("text/html; charset=GBK"); // 设置响应属性 // 接收客户端的请求 InputStream is = request.getInputStream(); DataInputStream dis = new DataInputStream(is); String tf1Str = dis.readUTF(); String tf2Str = dis.readUTF(); System.out.println("servlet端接收到手机传来的第一个参数为：" + tf1Str); // 主要起调试的作用，调试的结果显示在tomcat的启动DOS窗口中 System.out.println("servlet端接收到手机传来的第二个参数为：" + tf2Str); // 对接收的参数进行处理 String return1Str = tf1Str.concat(":早上好!"); // 在接收到的参数后连接字符串 String return2Str = tf2Str.concat(":晚上好!"); // 发送处理后的参数给手机 DataOutputStream dos = new DataOutputStream(response.getOutputStream()); dos.writeUTF(return1Str); dos.writeUTF(return2Str); System.out.println("servlet传递给手机的第一个参数为:" + return1Str); System.out.println("servlet传递给手机的第二个参数为:" + return2Str); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } public void destroy() { } // 清除资源 }

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