using HttpClient and sending json data to RESTful server in adroind

1.send a json object by parameter to request the RESTful server,as flowing code:

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package tuo.json;

 

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.net.URI;

import java.net.URISyntaxException;

 

import org.apache.http.HttpEntity;

import org.apache.http.HttpResponse;

import org.apache.http.client.ClientProtocolException;

import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.client.methods.HttpPost;

import org.apache.http.entity.StringEntity;

import org.apache.http.impl.client.DefaultHttpClient;

import org.apache.http.message.BasicHeader;

import org.apache.http.protocol.HTTP;

import org.json.JSONArray;

import org.json.JSONException;

import org.json.JSONObject;

 

import com.guc.android.nurse.activity.R.string;

 

/*

 * this class  call RESTful WCF,and return json data

 */

public class JsonTruck {

 

    public String getJsonString(String wcfUrl) throws Exception {

        HttpClient httpClient = new DefaultHttpClient();

        HttpGet request = new HttpGet();

        request.setURI(new URI(wcfUrl));

        HttpResponse response = httpClient.execute(request);

        return parseHttpResponse(response);

    }

     

    public  String parseHttpResponse(HttpResponse response) throws Exception {

        String jsonString="";

        int status = response.getStatusLine().getStatusCode();

        if (status == 200) {

            BufferedReader bReader = new BufferedReader(new InputStreamReader(

                    response.getEntity().getContent()));

            StringBuffer sb = new StringBuffer("");

            String line = "";

            String NL = System.getProperty("line.separator");

            while ((line = bReader.readLine()) != null) {

                sb.append(line + NL);

            }

            jsonString = sb.toString();

            bReader.close();

        }

        return jsonString;

         

    }

     

    public JSONObject getJson(String wcfUrl,String jsonObjName) throws Exception {

        String jsonString=getJsonString(wcfUrl);

        JSONObject jsonObject = new JSONObject(jsonString);

        return jsonObject.getJSONObject(jsonObjName);

    }

     

    public JSONArray getJsons(String wcfUrl,String jsonObjName) throws Exception{

        JSONObject jsonObject=new JSONObject(getJsonString(wcfUrl));

        return jsonObject.getJSONArray(jsonObjName);

         

    }

     

    public String doPost(String wcfUrl,JSONObject jsonObject) throws Exception {

        HttpClient httpClient = new DefaultHttpClient();

        HttpResponse response;

        HttpPost post=new HttpPost();

        HttpEntity httpEntity;

        StringEntity stringEntity=new StringEntity(jsonObject.toString());

        stringEntity.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));

        httpEntity=stringEntity;

        post.setEntity(httpEntity);

        post.setURI(new URI(wcfUrl));

        post.setHeader("Content-type", "application/json");

        response=httpClient.execute(post);

        return parseHttpResponse(response);

    }

}

2.Test in Activity and fill a json object

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package com.guc.android.nurse.activity;

 

import org.json.JSONObject;

 

import com.guc.android.nurse.comm.JsonTruck;

 

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.Toast;

 

public class Test extends Activity {

 

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        // TODO Auto-generated method stub

        super.onCreate(savedInstanceState);

        setContentView(R.layout.test);

        setListener();

    }

 

    void setListener(){

        Button updateBtn=(Button)findViewById(R.id.post_update);

        Button createButton=(Button)findViewById(R.id.post_create);

        updateBtn.setOnClickListener(new UpdateListener());

        createButton.setOnClickListener(new CreateListener());

    }

     

    class UpdateListener implements OnClickListener{

 

        @Override

        public void onClick(View v) {

            // TODO Auto-generated method stub

            String wcfUrl="http://192.168.0.110:8082/Nurse/SubmitRecord";

            String message="";

            JSONObject jsonObject=new JSONObject();

            JSONObject obj=new JSONObject();

             

            try {

                obj.put("his_account","00000");

                obj.put("timebh","1");

                obj.put("patientNo","*001201");

                obj.put("admissTimes","1");

                obj.put("position","1");

                obj.put("piesis_x","120");

                obj.put("piesis_y","80");

                obj.put("respiration","1");

                obj.put("temperature","1");

                obj.put("pulse","1");

                obj.put("liquidinput","1");

                obj.put("urea","1");

                obj.put("bowels","1");

                obj.put("otheroutput","1");

                jsonObject.put("record", obj);

                message=new JsonTruck().doPost(wcfUrl, jsonObject);

            } catch (Exception e) {

                // TODO Auto-generated catch block

                Toast.makeText(Test.this, e.getMessage(), 5000).show();

            }

             

            Toast.makeText(Test.this, message, 5000).show();

        }

         

    }

    class CreateListener implements OnClickListener{

 

        @Override

        public void onClick(View v) {

            Toast.makeText(Test.this, "you click create nutton", 5000).show();

             

        }

         

    }

}

the RESRful server client(WCF),you can reference previous article.