1 package com.example.administrator.myapplication.activity;
2
3 import android.os.Bundle;
4 import android.os.Handler;
5 import android.os.Message;
6 import android.support.v7.app.AppCompatActivity;
7 import android.view.View;
8 import android.webkit.WebView;
9 import android.widget.Button;
10 import android.widget.Toast;
11
12 import com.example.administrator.myapplication.R;
13
14 import java.io.IOException;
15 import java.io.InputStream;
16 import java.io.OutputStream;
17 import java.net.HttpURLConnection;
18 import java.net.MalformedURLException;
19 import java.net.URL;
20 import java.nio.charset.Charset;
21
22 public class HttpUrlConnectionPostActivity extends AppCompatActivity {
23 WebView webView;
24 Button postBtn;
25 @Override
26 protected void onCreate(Bundle savedInstanceState) {
27 super.onCreate(savedInstanceState);
28 setContentView(R.layout.activity_http_url_connection_post);
29 webView = (WebView) findViewById(R.id.webView);
30 postBtn = (Button) findViewById(R.id.post);
31 postBtn.setOnClickListener(new View.OnClickListener() {
32 @Override
33 public void onClick(View v) {
34 new Thread(new Runnable() {
35 @Override
36 public void run() {
37 HttpUrlConnectionPost();
38 }
39 }).start();
40 }
41 });
42
43 }
44
45 private void HttpUrlConnectionPost(){
46 try {
47 URL url = new URL("https://www.baidu.com/");
48 HttpURLConnection connection = (HttpURLConnection) url.openConnection();
49 connection.setConnectTimeout(5*1000);
50 connection.setReadTimeout(5*1000);
51 //设置是否向httpURLConnection写入内容
52 //post请求必须设置为true,因为post请求参数是否写在http正文中
53 connection.setDoOutput(true);
54 //设置是否从HttpURLConnection读入内容，默认为true
55 connection.setDoInput(true);
56 //设置是否使用缓存，post请求不使用缓存
57 connection.setUseCaches(false);
58 //设置请求方法 注意大小写!
59 connection.setRequestMethod("POST");
60 //设置长连接
61 //connection.setRequestProperty("Connection","keep-Alive");
62 //设置字符集
63 connection.setRequestProperty("Charset","utf-8");
64 //connection.setRequestProperty("Content-type","application/x-www-");
65
66 //!!!重点部分，设置参数
67 String params = "page = 1 & num = 10";
68 OutputStream os = connection.getOutputStream();
69 os.write(params.getBytes());
70 os.flush();
71 os.close();
72 if (connection.getResponseCode() == HttpURLConnection.HTTP_OK){
73 InputStream is = connection.getInputStream();
74 StringBuilder sb = new StringBuilder();
75 byte[] bytes = new byte[1024];
76 int i = 0;
77 while ((i = is.read(bytes)) != -1){
78 sb.append(new String(bytes,0,i,"utf-8"));
79 }
80 is.close();
81
82 Message message = handler.obtainMessage(1,sb.toString());
83 handler.sendMessage(message);
84 }
85 } catch (MalformedURLException e) {
86 e.printStackTrace();
87 } catch (IOException e) {
88 e.printStackTrace();
89 }
90 }
91 Handler handler = new Handler(){
92 @Override
93 public void handleMessage(Message msg) {
94 super.handleMessage(msg);
95 if (msg != null && msg.what == 1){
96 String s = (String) msg.obj;
97 String data = new String(s.getBytes(), Charset.forName("utf-8"));
98 webView.getSettings().setDefaultTextEncodingName("utf-8");
99 webView.getSettings().setJavaScriptEnabled(true);
100 webView.loadDataWithBaseURL(null,data,"text/html","utf-8",null);
101 Toast.makeText(getApplication(),"post请求成功!",Toast.LENGTH_SHORT).show();
102 }
103 }
104 };
105 }
1 <WebView
2 android:id="@+id/webView"
3 android:layout_width="match_parent"
4 android:layout_height="400dp"></WebView>
5
6 <Button
7 android:id="@+id/post"
8 android:layout_width="match_parent"
9 android:layout_height="wrap_content"
10 android:text="HttpUrlConnection Post请求" />
