java - 线程 "main"java.lang.RuntimeException : Stub 中的异常

Question

大家好，我遇到了这个奇怪的错误，我不知道为什么？

package com.androidbook.services.httpget;

import java.io.BufferedReader; import java.io.IOException;
import java.io.InputStreamReader;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import android.app.Activity;
import android.os.Bundle;

public class HttpGetDemo extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        BufferedReader in = null;
        try {
            HttpClient client = new DefaultHttpClient();
            HttpGet request = new HttpGet("http://code.google.com/android/");
            HttpResponse response = client.execute(request);
            in = new BufferedReader(
                    new InputStreamReader(
                        response.getEntity().getContent()));

            StringBuffer sb = new StringBuffer("");
            String line = "";
            String NL = System.getProperty("line.separator");
            while ((line = in.readLine()) != null) {
                sb.append(line + NL);
            }
            in.close();

            String page = sb.toString();
            System.out.println(page);
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();         } finally {
            if (in != null) {
                try {
                    in.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}

错误是这样的

Exception in thread "main" java.lang.RuntimeException: Stub!
    at org.apache.http.impl.client.AbstractHttpClient.<init>(AbstractHttpClient.java:5)
    at org.apache.http.impl.client.DefaultHttpClient.<init>(DefaultHttpClient.java:7)
    at ClientWithResponseHandler.main(ClientWithResponseHandler.java:15)`

Answer 1

您在这里导入了 Android SDK。您是否有机会尝试从您的电脑(例如，从标准 Java 项目)运行它？

此错误意味着您无权访问您尝试使用的实际方法或对象，而只能访问一个 stub - 该方法所做的只是抛出您看到的这个异常。

确保您在模拟器(或 Android 设备)上运行您的 Android 项目，并且您不会在不在 Android 设备上运行的项目中从 Android 导入任何内容。