Android——访问网络谷歌2013官方工具
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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 beijinglanguage string否urlParam语言zh-Hansunit string否urlParam单位cstart string否urlParam起始时间0days 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>();}@Overridepublic Map<String, String> getHeaders() throws AuthFailureError {return header;}public void putHeaders(String key,String value){this.header.put(key,value);}@Overrideprotected 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>
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<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>
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