android调用webservice接口获取信息

Posted 2020-10-14

我的有一篇博客上讲了如何基于CXF搭建webservice，service层的接口会被部署到tomcat上，这一篇我就讲一下如何在安卓中调用这些接口传递参数。

1.在lib中放入ksoap2的jar包并导入

 

2.在xml 配置文件中加入：

<!-- 访问网络的权限 -->  
    <uses-permission android:name="android.permission.INTERNET" /> 

 

3.接下来就要通过代码调用借口了

String WSDL_URI = "http://localhost:8080/WebService4/getNewIdPort?wsdl";//wsdl 的uri
String namespace = "http://services.he.TSD/";//namespace
String methodName = "getNew";//要调用的方法名称
// 创建HttpTransportSE对象
HttpTransportSE ht = new HttpTransportSE(WSDL_URI);
ht.debug = true;
// 使用soap1.1协议创建Envelop对象
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);// 实例化SoapObject对象
SoapObject object = new SoapObject(namespace, methodName);
// 设置参数
object.addProperty("arg0", "hhh");
// 将SoapObject对象设置为SoapSerializationEnvelope对象的传出SOAP消息
envelope.bodyOut = object;//由于是发送请求，所以是设置bodyOut
envelope.dotNet =false;
envelope.setOutputSoapObject(object);
try{
  // 调用webService
  ht.call(null, envelope);
  System.out.println("回传的值 ："+envelope.getResponse());
}
catch (Exception e) {
  e.printStackTrace();
  String msg=e.getMessage();
  System.out.println(msg);
}

 

4.若webservice接收不到android传来的值：

  （1）参数名不对

  （2）.net的webservice要将envelope.dotNet =true，否则envelope.dotNet =false

 

5.由于是部署到tomcat上的，为了同处于一个网段，要手机和电脑连一个wifi。 ipv4查找用window+R，接着cmd，最后ipconfig 即可查到。

 

6.要关闭windows防火墙

 

7.当时我还遇到了一个问题，就是当传递的信息复杂时，比如传递list型的一个自定义的类，会出现问题，当时我是重写了ListAdapter类，如下所示：

package com.adapter;


/**
 * Created by hexiaolu on 2017/4/13.
 */

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import com.example.administrator.stock2.R;


public class ListAdapter extends BaseAdapter {
    HashMap item = new HashMap();
    private LayoutInflater mInflater;
    //private List<Map<String, Object>> mData;// 存储的EditText值
    private ArrayList mData=new ArrayList();
    //private ArrayList mDate = new ArrayList();
    public Map<String, String> editorValue = new HashMap<String, String>();//
    private TextView spendMoney;
    public ListAdapter(Context context, ArrayList data,TextView spend) {
        spendMoney=spend;
        mData = data;
        mInflater = LayoutInflater.from(context);
        init();
    }

    // 初始化
    private void init() {
        editorValue.clear();
    }

    @Override
    public int getCount() {
        return mData.size();
    }

    @Override
    public Object getItem(int position) {
        return null;
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }

    private Integer index = -1;

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder = null;
        // convertView为null的时候初始化convertView。
        if (convertView == null) {
            holder = new ViewHolder();
            convertView = mInflater.inflate(R.layout.list_item, null);
            holder.goodsName = (TextView) convertView
                    .findViewById(R.id.list_item_goodsName);
            holder.goodsSellPrice = (TextView) convertView
                    .findViewById(R.id.list_item_goodsSellPrice);
            holder.goodsUnit = (TextView) convertView
                    .findViewById(R.id.list_item_goodsUnit);
            holder.goodsSellNum = (EditText) convertView
                    .findViewById(R.id.list_item_goodsSellNum);
            holder.goodsSellNum.setTag(position);
            /*holder.goodsSellNum.setOnTouchListener(new OnTouchListener() {
                @Override
                public boolean onTouch(View v, MotionEvent event) {
                    if (event.getAction() == MotionEvent.ACTION_UP) {
                        index = (Integer) v.getTag();
                    }
                    return false;
                }
            });*/
            class MyTextWatcher implements TextWatcher {
                public MyTextWatcher(ViewHolder holder) {
                    mHolder = holder;
                }

                private ViewHolder mHolder;

                @Override
                public void onTextChanged(CharSequence s, int start,
                                          int before, int count) {
                }

                @Override
                public void beforeTextChanged(CharSequence s, int start,
                                              int count, int after) {
                }

                @Override
                public void afterTextChanged(Editable s) {
                    if (s != null && !"".equals(s.toString())) {
                        int position = (Integer) mHolder.goodsSellNum.getTag();

                        /*mData.get(position).put("goodsSellNum",s.toString());// 当EditText数据发生改变的时候存到data变量中*/
                        item=(HashMap)mData.get(position);
                        item.put("goodsSellNum",s.toString());
                        mData.set(position,item);
                        spendMoney.setText(String.valueOf(calculate()));//计算总价格
                    }
                }
            }
            holder.goodsSellNum.addTextChangedListener(new MyTextWatcher(holder));
            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
            holder.goodsSellNum.setTag(position);
        }
        item=(HashMap)mData.get(position);
        Object value=item.get("goodsName");
        //Object value = mData.get(position).get("list_item_goodsName");
        if (value != null) {
            holder.goodsName.setText((String) value);
        }
        item=(HashMap)mData.get(position);
        value=item.get("goodsSellPrice");
        //value = mData.get(position).get("list_item_goodsSellPrice");
        if (value != null) {
            holder.goodsSellPrice.setText(value.toString());
        }
        item=(HashMap)mData.get(position);
        value=item.get("goodsUnit");
        //value = mData.get(position).get("list_item_goodsUnit");
        if (value != null) {
            holder.goodsUnit.setText(value.toString());
        }
        item=(HashMap)mData.get(position);
        value=item.get("goodsSellNum");
        //value = mData.get(position).get("list_item_goodsSellNum");
        if (value != null && !"".equals(value)) {
            holder.goodsSellNum.setText(value.toString());
        }
        holder.goodsSellNum.clearFocus();
        if (index != -1 && index == position) {
            holder.goodsSellNum.requestFocus();
        }
        return convertView;
    }

    public final class ViewHolder {
        public TextView goodsName;
        public TextView goodsSellPrice;
        public EditText goodsSellNum;// ListView中的输入
        public TextView goodsUnit;// 用来定义的标志性主键,可不用关心
    }
    public float calculate() {
        float money = 0;
        for (int i = 0; i < mData.size(); i++) {
            HashMap item = new HashMap();
            item = (HashMap) mData.get(i);
            float num =  Float.parseFloat(item.get("goodsSellNum").toString());
            float price = Float.parseFloat(item.get("goodsSellPrice").toString());
            money = money + num * price;
        }
        return money;
    }
}

View Code

 

8.调如何用ListAdapter类

ListAdapter adapter = new ListAdapter(this, list,spendMoney); 
lv_goodsList.setAdapter(adapter);