【发布时间】:2011-08-14 13:29:49
【问题描述】:
我在从我的 Android 应用程序中调用我的网络服务以进行用户身份验证时遇到问题。当我输入我知道正确的用户名和密码时,它在模拟器屏幕上给了我一个奇怪的 xml 错误
这是我的安卓代码:
package com.demo;
import android.app.Activity;
import android.os.Bundle;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
//import android.app.Activity;
//import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class AndroidLogin extends Activity implements OnClickListener {
/** Called when the activity is first created. */
Button ok,back,exit;
TextView result;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ok =(Button)findViewById(R.id.btn_login);
ok.setOnClickListener(this);
result = (TextView)findViewById(R.id.lbl_result);
}
public void postLoginData() {
// Create a new HttpClient and Post Header
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://10.0.2.2/testlogin/Service1.asmx");
try {
// Add user name and password
EditText uname = (EditText)findViewById(R.id.txt_username);
String username = uname.getText().toString();
EditText pword = (EditText)findViewById(R.id.txt_password);
String password = pword.getText().toString();
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("username", username));
nameValuePairs.add(new BasicNameValuePair("password", password));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
// Execute HTTP Post Request
Log.w("demo", "Execute HTTP Post Request");
HttpResponse response = httpclient.execute(httppost);
String str = inputStreamToString(response.getEntity().getContent()).toString();
Log.w("demo", str);
if(str.toString().equalsIgnoreCase("true"))
{
Log.w("demo", "TRUE");
result.setText("Login successful");
}else
{
Log.w("demo", "FALSE");
result.setText(str);
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private StringBuilder inputStreamToString(InputStream is) {
String line = "";
StringBuilder total = new StringBuilder();
// Wrap a BufferedReader around the InputStream
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
// Read response until the end
try {
while ((line = rd.readLine()) != null) {
total.append(line);
}
} catch (IOException e) {
e.printStackTrace();
}
// Return full string
return total;
}
@Override
public void onClick(View view) {
if(view == ok){
postLoginData();
}
}
}
这是我在模拟器上的输出图片:http://www.flickr.com/photos/66352826@N07/6041731494/ 这里是 logcat:http://pastebin.com/YmH0h6SF
请有人帮助我
【问题讨论】:
-
通读服务返回的异常。我不能这样做,因为在你提供的屏幕截图上它被剪切了。
-
@pkk:即使我无法查看完整的内容..如果您愿意,可以检查我的 logcat...有没有办法增加模拟器屏幕的大小,这样我就可以看到隐藏的东西
-
使用 logcat 记录消息,编辑您的帖子并将其添加到那里:Log.d("tag", str);靠近 Log.w("demo", "FALSE");
-
你的意思是我应该替换 log.w("demo", "FALSE");通过 Log.d("tag",str) ?
-
不,对不起,我没有注意到,您还附加了 logcat 输出。
标签: android web-services visual-studio-2008