Android——访问网络谷歌2013官方工具

Android——访问网络谷歌2013官方工具

http://localhost:8080/        127.0.0.1






<span style="font-size:18px;"><strong>package com.example.jreduch07.util;

import android.util.Log;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

/**
* Created by 冲天之峰 on 2016/8/17.
*/
public class HttpUtil {
public static String HttpGet(String uri){

HttpURLConnection con = null;//为了抛异常
InputStream is = null;
BufferedReader reader=null;
String result=null;
StringBuffer sbf=new StringBuffer();

try {
URL url = new URL(uri);
con = (HttpURLConnection) url.openConnection();
con.setRequestProperty("apikey","5b46143955a4b1ff1b470a94315625cd");
con.setConnectTimeout(5 * 1000);
con.setReadTimeout(5 * 1000);
//http响应码200成功 404未找到 500发生错误
if (con.getResponseCode() == 200) {
is = con.getInputStream();
reader =new BufferedReader(new InputStreamReader(is,"UTF-8"));
String strRead=null;
while ((strRead = reader.readLine())!=null) {
sbf.append(strRead);
sbf.append("\r\n");
Log.d("==j==", "200");
}
reader.close();
result=sbf.toString();
Log.d("=====",result);
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}if (con != null) {
con.disconnect();
}
}
return result;
}

}

</strong></span>

<span style="font-size:18px;"><strong>package com.example.jreduch07.util;

/**
* Created by 冲天之峰 on 2016/8/17.
*/
public class UrlUtil {
//获取 频道的网络接口
public static String channelUrl = "http://apis.baidu.com/showapi_open_bus/channel_news/channel_news";
/*获取 频道对应新闻的网络接口
get 请求参数：
channelId    : 新闻频道id，必须精确匹配
channelName  :新闻频道名称，可模糊匹配
title        :新闻标题，模糊匹配
page         :页数，默认1。每页最多20条记
needContent  : 是否需要返回正文，1为需要
needHtml     :是否需要返回正文的html格式，1为需要
*/
public static String newsUrl = "http://apis.baidu.com/showapi_open_bus/channel_news/search_news";
/*
参数名	类型	必填	参数位置	描述	默认值
location string	是	urlParam	所查询的位置 beijing
language string	否	urlParam	语言zh-Hans
unit string	否	urlParam	单位c
start string	否	urlParam	起始时间0
days string	否	urlParam	天数3

*/
//获取天气的 网络接口
public  static  String weatherUrl="http://apis.baidu.com/thinkpage/weather_api/suggestion";

}
</strong></span>

<span style="font-size:18px;"><strong>package com.example.jreduch07.util;

import com.android.volley.AuthFailureError;
import com.android.volley.Response;
import com.android.volley.toolbox.StringRequest;

import java.util.HashMap;
import java.util.Map;

/**
* Created by 冲天之峰 on 2016/8/25.
*/
public class StringGetRequest extends StringRequest {

private Map<String,String> header;

public StringGetRequest(int method, String url, Response.Listener<String> listener, Response.ErrorListener errorListener) {
super(method, url, listener, errorListener);
header=new HashMap<>();

}
public  void  putHeaders(String key,String value){
header.put(key,value);

}

@Override
public  Map<String,String> getHeaders() throws AuthFailureError{
return  header;
}

//
//    public StringGetRequest(String url, Response.Listener<String> listener, Response.ErrorListener errorListener) {
//        super(url, listener, errorListener);
//    }
}
</strong></span>

<span style="font-size:18px;"><strong>package com.example.jreduch07.util;
import com.android.volley.AuthFailureError;
import com.android.volley.Response;
import com.android.volley.Response.Listener;
import com.android.volley.toolbox.StringRequest;
import java.util.HashMap;
import java.util.Map;

public class StringPostRequest extends StringRequest {
private Map<String, String> params;
private Map<String,String> header;
public StringPostRequest(String url, Listener<String> listener,
Response.ErrorListener errorListener) {
super(Method.POST, url, listener, errorListener);
params = new HashMap<String, String>();
header = new HashMap<String, String>();
}

@Override
public Map<String, String> getHeaders() throws AuthFailureError {
return header;
}
public  void putHeaders(String key,String value){
this.header.put(key,value);

}

@Override
protected Map<String, String> getParams() throws AuthFailureError {
return params;
}
public void putParams(String key, String value){
this.params.put(key, value);
}

}
</strong></span>

1111111111111111111111111

<span style="font-size:18px;"><strong>package com.example.jreduch07;

import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

public class HttpActivity extends AppCompatActivity {
public EditText  et;
private Button search;
private Button search1;
private TextView show;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_http);
et=(EditText)findViewById(R.id.et);
search=(Button)findViewById(R.id.search);
search1=(Button)findViewById(R.id.search1);
show=(TextView)findViewById(R.id.show);
search.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
String url="http://192.168.1.48:8080/HttpTest/index.jsp?option=getUser&uName=jerehedu";
new  MyGetJob().execute(url);
}
});
search1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String[] arg=new String[2];
arg[0]="http://192.168.1.48:8080/HttpTest/index.jsp";
arg[1]="option=getUser&uName=jerehedu";
new MyPostJob1().execute(arg);
}
});
}

private  class MyPostJob1 extends AsyncTask<String,Void,String>{
@Override
protected String doInBackground(String... strings) {
HttpURLConnection con=null;
InputStream is=null;
StringBuilder sbd=new StringBuilder();
try {
URL url=new URL(strings[0]);
con= (HttpURLConnection) url.openConnection();
con.setConnectTimeout(5*1000);
con.setReadTimeout(5*1000);
con.setRequestMethod("POST");
con.setDoInput(true);
con.setDoOutput(true);
con.setUseCaches(false);
con.setRequestProperty("Charset","UTF-8");
con.setRequestProperty("Content-type","application/x-www-form-urlencoded");

//            con.setRequestProperty("Charset","UTF-8");
//            con.setRequestProperty("Content-type","application/x-www-from-urlencoded");
//params应该是这样的=》option=getUser&uName=jerehedu
String params=strings[1];
OutputStream os=con.getOutputStream();   //数据传输  流
os.write(params.getBytes());
os.flush();
os.close();
if (con.getResponseCode()==200) {
is=con.getInputStream();
int next = 0;
byte[] b = new byte[1024];
while ((next = is.read(b)) > 0) {

sbd.append(new String(b, 0, next));
}
}

} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}finally {
if (is!=null){
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
if (con!=null){
con.disconnect();  //断开连接
}
}
}

return sbd.toString();
}

@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
show.setText("POST请求结果："+s);
}
}
/*
AsyncTask异步任务类
异步任务类的第一个参数会传到doInBackground方法中
第三个参数
#指定doINBackground方法的返回值
#doINBackground方法的返回值会被OnPostExecute接收

*/
private class MyGetJob extends AsyncTask<String, Void, String> {
//onPreExecute在主线程中执行命令
//进度条的初始化
@Override
protected void onPreExecute() {
super.onPreExecute();
}

//doInBackground在子线程中执行名命令
@Override
protected String doInBackground(String... strings) {
HttpURLConnection con = null;
InputStream is = null;
StringBuilder sbd = new StringBuilder();
try {
URL url = new URL(strings[0]);
con = (HttpURLConnection) url.openConnection();
con.setConnectTimeout(5 * 1000);
con.setReadTimeout(5 * 1000);
/*
*http相应200：成功
* 404未找到
* 500发生错误
*/
if (con.getResponseCode() == 200) {
is = con.getInputStream();
int next = 0;
byte[] bt = new byte[1024];
while ((next = is.read(bt)) > 0) {

sbd.append(new String(bt, 0, next));
}
}

} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
if (con != null) {
con.disconnect();  //断开连接
}
}
}

return sbd.toString();
}

//onPostExecute在UI线程中执行命令  主线程
@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
show.setText(s);
}
}
}
</strong></span>

<span style="font-size:18px;"><strong><?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"

tools:context="com.example.jreduch07.HttpActivity">

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="姓名!"
android:textSize="20dp"
android:layout_alignTop="@+id/et"
android:layout_alignParentStart="true"
android:layout_alignBottom="@+id/et"
android:id="@+id/textView" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:hint="请输入要查找姓名"
android:id="@+id/et"
android:layout_alignBottom="@+id/search"
android:layout_centerHorizontal="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="查询(GET方法)"
android:id="@+id/search"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true" />
<TextView
android:layout_width="match_parent"
android:layout_height="150dp"
android:background="#fff30d"
android:id="@+id/show"
android:textSize="30sp"
android:text="查询结果："
android:layout_below="@+id/search1"
android:layout_alignParentStart="true" />

<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="查询(post方法)"
android:id="@+id/search1"
android:layout_below="@+id/et"
android:layout_alignParentEnd="true" />
</RelativeLayout>
</strong></span>

222222222222222

<span style="font-size:18px;"><strong>package com.example.jreduch07;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;
import com.example.jreduch07.util.StringPostRequest;
import com.example.jreduch07.util.UrlUtil;

public class VolleyActivity extends AppCompatActivity implements View.OnClickListener{
private Button bt;
private TextView tv;
private RequestQueue queue;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_volley);

bt=(Button)findViewById(R.id.bt);
tv=(TextView)findViewById(R.id.tv);
bt.setOnClickListener(this);
//初始化Volley请求队列
queue= Volley.newRequestQueue(this);

}

public  void onClick(View view){
int id=view.getId();
if (id==R.id.bt){
PostVolley();
}
}

public  void GetVolly(){
//第二步  写请求

String url="http://172.20.180.5:8080/HttpTest/index.jsp?option=getUser&uName=jerehedu";

StringRequest sr=new StringRequest(url, new Response.Listener<String>() {
@Override
public void onResponse(String s) {
tv.setText(s);
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError volleyError) {
tv.setText(volleyError.getMessage());
}
});
//第三步把请求放到Queue
queue.add(sr);
}
public  void  PostVolley(){

String url= UrlUtil.channelUrl;

StringPostRequest spr=new
StringPostRequest(url, new Response.Listener<String>() {
@Override
public void onResponse(String s) {
tv.setText(s);
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError volleyError) {

}

});
spr.putHeaders("apikey","5b46143955a4b1ff1b470a94315625cd");
//    spr.putParams("channelId",);
//    spr.
queue.add(spr);
}

}</strong></span><span style="font-size:24px;font-weight: bold;">
</span>

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.jreduch07.VolleyActivity">
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="访问网络"
android:gravity="center"
android:id="@+id/bt"
/>
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/tv"
android:layout_below="@+id/bt"
/>
</RelativeLayout>