Android 网络提交数据(使用Asynchronous Http Client)
项目主页及简单使用方法http://loopj.com/android-async-http/
页面布局就不复制了,把主要的Activity记录下来,供自己以后使用:
package com.example.asynchttp; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.URI; import java.net.URLEncoder; import org.apache.http.Header; import org.apache.http.HttpResponse; import com.loopj.android.http.AsyncHttpClient; import com.loopj.android.http.AsyncHttpResponseHandler; import com.loopj.android.http.RequestParams; import com.loopj.android.http.ResponseHandlerInterface; import com.loopj.android.http.TextHttpResponseHandler; import android.os.Bundle; import android.provider.MediaStore.Files; import android.app.Activity; import android.content.res.Resources; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.view.Menu; import android.view.View; import android.widget.Toast; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } public void get_click(View v) throws Exception { String path = "http://192.168.1.100:8080/ServletTest/Login" + "?username=" + URLEncoder.encode("test", "utf-8") + "&password=" + URLEncoder.encode("123", "utf-8"); AsyncHttpClient client = new AsyncHttpClient(); client.get(path, new AsyncHttpResponseHandler() { @Override public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) { Toast.makeText(MainActivity.this, new String(responseBody), Toast.LENGTH_SHORT).show(); } @Override public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) { Toast.makeText(MainActivity.this, new String(responseBody + error.getMessage()), Toast.LENGTH_SHORT).show(); } }); } public void post_click(View v) throws Exception { String path = "http://192.168.1.100:8080/ServletTest/Login"; String username = "test"; String password = "123"; AsyncHttpClient client = new AsyncHttpClient(); RequestParams params = new RequestParams(); params.add("username", username); params.add("password", password); client.post(path, params, new TextHttpResponseHandler() { @Override public void onSuccess(int statusCode, Header[] headers, String responseString) { Toast.makeText(MainActivity.this, responseString, Toast.LENGTH_SHORT).show(); } @Override public void onFailure(int statusCode, Header[] headers, String responseString, Throwable throwable) { Toast.makeText(MainActivity.this, responseString, Toast.LENGTH_SHORT).show(); } }); } public void upload_click(View v) throws Exception { String path = "http://192.168.1.100:8080/ServletTest/Upload"; AsyncHttpClient client = new AsyncHttpClient(); RequestParams params = new RequestParams(); InputStream is = getAssets().open("test.png"); params.put("file", is,"测试.png"); client.post(path, params, new AsyncHttpResponseHandler() { @Override public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) { Toast.makeText(MainActivity.this, "上传成功", Toast.LENGTH_SHORT).show(); } @Override public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) { Toast.makeText(MainActivity.this, "上传失败", Toast.LENGTH_SHORT).show(); } }); } }调试测试的时候可以使用tomvat服务器试验下,开始自己不会写服务器端的代码,偶然间发现toncat自带的例子里面有测试post和get方法提交数据的,一般的地址为:http://10.3.19.27:8080/examples/servlets/servlet/SessionExample前面的改为自己的本机的服务器地址即可