Java 将edittext值从android传递到web服务

我想将编辑文本值从android传递给web服务，但我不能每次都返回空值。 这是我的简单web服务

package org.me.mongodb;

import javax.jws.WebService;
import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.ejb.Stateless;

@WebService(serviceName = "Simple")
@Stateless()

public class Simple {

 public String testMyProps(@WebParam(name = "name")String fname){
  return "First Name : "+fname;
 }
}

android代码

package com.prgguru.android;

import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.PropertyInfo;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapPrimitive;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;

import com.example.webserviceactivity.R;

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 MainActivity extends Activity {
    private static final String SOAP_ACTION = "";
    private static final String METHOD_NAME = "testMyProps";
    private static final String NAMESPACE = "http://mongodb.me.org/";
    private static final String URL = "http://10.0.2.2:8080/Simple/Simple?WSDL";
    private String TAG = "PGGURU";
    private static String barge="";
    private static String info;
    Button  b;
    TextView tv;
    EditText et;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        et = (EditText) findViewById(R.id.editText1);

        tv = (TextView) findViewById(R.id.tv_result);
        //Button to trigger web service invocation
        b = (Button) findViewById(R.id.button1);
        //Button Click Listener
        b.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                //Check if barge text control is not empty
                if (et.getText().length() != 0 && et.getText().toString() != "") {
                    //Get the text control value
                    barge = et.getText().toString();
                    //Create instance for AsyncCallWS
                    AsyncCallWS task = new AsyncCallWS();
                    //Call execute 
                    task.execute();

                //If text control is empty
                } else {
                    tv.setText("Please enter Barge Name");
                }
            }
        });
    }

    public void testMyProps(String fname) {

        //Create request
        SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
        //Property which holds input parameters
        PropertyInfo getinfo = new PropertyInfo();
        //Set Name
        getinfo.setName("arg0");
        //Set Value
        getinfo.setValue(fname);
        //Set dataType
        getinfo.setType(String.class);
        //Add the property to request object
        request.addProperty(getinfo);
        //Create envelope
        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
                SoapEnvelope.VER11);
        envelope.dotNet = true;
        //Set output SOAP object
        envelope.setOutputSoapObject(request);
        //Create HTTP call object
        HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

        try {
            //Invole web service
            androidHttpTransport.call(SOAP_ACTION,  envelope);
            //Get the response
            SoapPrimitive response = (SoapPrimitive) envelope.getResponse();
            //Assign it to info static variable
            info = response.toString();

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private class AsyncCallWS extends AsyncTask<String, Void, Void> {
        @Override
        protected Void doInBackground(String... params) {
            Log.i(TAG, "doInBackground");
            testMyProps(barge);
            return null;
        }

        @Override
        protected void onPostExecute(Void result) {
            Log.i(TAG, "onPostExecute");
            tv.setText(info);
        }

        @Override
        protected void onPreExecute() {
            Log.i(TAG, "onPreExecute");
            tv.setText("Getting...");
        }

        @Override
        protected void onProgressUpdate(Void... values) {
            Log.i(TAG, "onProgressUpdate");
        }

    }

}

---

您正在使用

EditText

值设置

barge

，但未将其发送到

AsyncTask

barge = et.getText().toString();
//Create instance for AsyncCallWS
AsyncCallWS task = new AsyncCallWS();

if(barge != null && !barge.equals("")) { // if barge is not an empty string and not null
    task.execute(barge);
    // return null; i don't think u need this return statement
}

然后在AsyncTask类中

@Override
protected Void doInBackground(String... params) {
    Log.i(TAG, "doInBackground: barge is " + params[0]);
    testMyProps(params[0]);
}

---

我想当你实例化

AsyncCallWS

时，你必须以

params

的形式发送

barge

是

barge=null

的值吗？是的，编辑文本值似乎不发送。在测试方法中，你正在返回null…并且是空的..是的，我能做什么？你能帮我更多吗，我真的不明白，我如何才能将驳船名称作为参数发送，您是否有may me代码，谢谢您在比较字符串时，您必须使用

equals（）

方法，而不是

=运算符：）替换此
et.getText（）.toString（）！=“
with
et.getText（）.toString（）.equals（”
感谢您的帮助但它不起作用我收到错误，我将编辑错误可能是您有什么建议，谢谢确定。强制停止应用程序。在doInBackground（）testMyProps（驳船）中注释该行；看看会发生什么。您应该只看到Log.i（标记“doInBackground:barge is”+params[0]）；然后从异步任务中返回。如果发生这种情况，那么testMyProps（）方法中就存在一些问题。我得到了一些类似doInbacground的东西：驳船是阿伦（我填写的名字），然后12-11 09:59:41.180:D/dalvikvm（1212）：GC_为所有释放的200K，11%释放的2819K/3136K，暂停103ms，总共103ms 12-11 09:59:41.190:I/编舞（1212）：跳过了31帧！应用程序可能在其主线程上做了太多工作。12-11 09:59:41.300:I/PGGURU（1212）：onPostExecute
@Override
protected Void doInBackground(String... params) {
    Log.i(TAG, "doInBackground: barge is " + params[0]);
    testMyProps(params[0]);
}