google-http-java-client(android学习篇)

package com.example.android;

import java.io.IOException; import java.util.HashMap;

import android.app.Activity; import android.content.Intent;

import android.os.Bundle; import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button; import com.google.api.client.http.GenericUrl;

import com.google.api.client.http.HttpRequest;

import com.google.api.client.http.HttpRequestFactory;

import com.google.api.client.http.HttpRequestInitializer;

import com.google.api.client.http.HttpResponse;

import com.google.api.client.http.HttpTransport;

import com.google.api.client.http.UrlEncodedContent;

import com.google.api.client.http.javanet.NetHttpTransport;

import com.google.api.client.json.JsonFactory;

import com.google.api.client.json.JsonObjectParser;

import com.google.api.client.json.jackson.JacksonFactory;

import com.google.api.client.util.Key;

public class MainActivity extends Activity {

public static Result result =null;

public static class Result {

@Key("Code")

private int code;

@Key("Data")

private ProductData data;

public int getCode() {

return code;   }

public ProductData getData() {

return data;

}

}

public static class ProductData {

@Key("Total")

private int total;

@Key("List")

private Product[] list;

public int getTotal() {

return total;   }

public Product[] getList() {

return list;

}

}

public static class Product {

@Key("id")

private int id;

@Key("title")

private String title;

public int getId() {

return id;   }

public String getTitle() {

return title;   }  }

Button btn = null;

static final HttpTransport HTTP_TRANSPORT = new NetHttpTransport();// For Java: NetHttpTransport(HttpURLConnection ); For Android: AndroidHttp.  static final JsonFactory JSON_FACTORY = new JacksonFactory(); // For JSON converting.

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

btn = (Button)this.findViewById(R.id.btnacq);

btn.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

test();

Intent intent = new Intent();

intent.setClass(MainActivity.this, Show.class);

intent.putExtra("code", result.getCode());//向下一个activity传入数值

intent.putExtra("data", result.getData().total);

intent.putExtra("list", result.getData().list);

startActivity(intent);    }   });     }

public static void test() {   HttpRequestFactory requestFactory = HTTP_TRANSPORT.createRequestFactory(new HttpRequestInitializer() {

@Override

public void initialize(HttpRequest request) throws IOException {     request.setParser(new JsonObjectParser(JSON_FACTORY));    }       });

GenericUrl url = new GenericUrl("url"); // ps=20&pi=0&t=8&ti=1&catetag=[]&custag=[]&favtag=[]&name=

HashMap<String, String> params = new HashMap<String, String>();

params.put("ps", "20");//ajax代码写的   params.put("pi", "0");

params.put("t", "8");   params.put("ti", "1");   params.put("catetag", "[]");

params.put("custag", "[]");   params.put("favtag", "[]");   params.put("name", "");

try {    HttpRequest request = requestFactory.buildPostRequest(url, new UrlEncodedContent(params));//请用post请求

HttpResponse response = request.execute();

result = response.parseAs(Result.class);//根据自己定义的的对象的get方法获取里面的值

System.out.println(result);

System.out.println(result.getCode()+"-------"+result.getData());    System.out.println(result.getData().total+"----"+result.getData().list);   }

catch (IOException e) {    System.out.println("代码出错");   }

}

}