Question

我试图在java上使用HttpRequest方法，但它不起作用，这是我的代码

package com.example.phpconnect;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;

import android.util.Log;

public class httpHandler {

public String post(String posturl){

    try{
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httppost = new HttpPost(posturl);
        Log.w("Se envio","Fase 1");

        HttpResponse resp = httpclient.execute(httppost);
        HttpEntity ent = resp.getEntity();          
        Log.w("Se envio","Fase 2");

        String text = EntityUtils.toString(ent);
        Log.w("Se envio","Fase 3");
        return text;
    }
    catch(Exception e){
        Log.w("Se envio","Error");
        return "Error";
    }

}

}

它可以正常工作到第一个日志，然后它会抛出错误，请有人知道问题出在哪里？谢谢！

Answer 1

当应用程序尝试在其主线程上执行网络操作时，抛出NetworkOnMainThreadException。

正如@EJP在评论中正确指出的那样，只会尝试详细说明。

不应在主线程中执行HTTP Post请求。它需要在后台运行，为此你可以使用AsyncTask并在doInBackground()中执行它。

More details on Exception!

HttpRequest令我心烦意乱

1 个答案: