今日课堂总结

Posted 2020-07-25 宫崎天川

VOLLEY-GAT方式:

 1 package com.hanqi.cunchu;
 2 
 3 import android.app.ProgressDialog;
 4 import android.support.v7.app.AppCompatActivity;
 5 import android.os.Bundle;
 6 import android.util.Log;
 7 import android.view.View;
 8 import android.widget.EditText;
 9 import android.widget.Toast;
10 
11 import java.io.InputStream;
12 import java.io.ObjectStreamClass;
13 import java.io.OutputStream;
14 import java.net.URL;
15 import java.util.HashMap;
16 import java.util.Map;
17 
18 import com.android.volley.*;
19 import com.android.volley.toolbox.StringRequest;
20 import com.android.volley.toolbox.Volley;
21 
22 import javax.net.ssl.HttpsURLConnection;
23 
24 public class TestActivity3 extends AppCompatActivity {
25     EditText et_2;
26     //请求队列
27     RequestQueue RQ;
28     @Override
29     protected void onCreate(Bundle savedInstanceState) {
30         super.onCreate(savedInstanceState);
31         setContentView(R.layout.activity_test3);
32         et_2=(EditText)findViewById(R.id.et_2);
33         //创建Volley的请求队列
34         //在子线程
35         RQ= Volley.newRequestQueue(this);
36     }
37     //volleyde get方式
38     public void bt3_onclick(View v)
39     {
40         //1-启动进度对话框
41         final ProgressDialog PD = ProgressDialog.show(this, null, "请稍等. . . ");
42         //构建StringRequest
43             StringRequest SR = new StringRequest("http://192.168.0.101:81/index.asp?name=tom&password=456",
44                     new Response.Listener<String>() {
45                         @Override
46                         public void onResponse(String s) {
47                             //处理正常请求
48                             //在主线程运行
49                             et_2.setText(s);
50                             PD.dismiss();
51                         }
52                     },//这是逗号.
53                     new Response.ErrorListener() {
54                 @Override
55                 public void onErrorResponse(VolleyError volleyError) {
56                     //处理错误请求
57                     PD.dismiss();
58                     Toast.makeText(TestActivity3.this, "响应异常,响应状态码="+volleyError.networkResponse.statusCode,Toast.LENGTH_LONG).show();
59                 }
60             });
61         //加入队列
62         RQ.add(SR);
63     }
64 }

VOLLEY-POST方式:

 1 package com.hanqi.cunchu;
 2 
 3 import android.app.ProgressDialog;
 4 import android.support.v7.app.AppCompatActivity;
 5 import android.os.Bundle;
 6 import android.util.Log;
 7 import android.view.View;
 8 import android.widget.EditText;
 9 import android.widget.Toast;
10 
11 import java.io.InputStream;
12 import java.io.ObjectStreamClass;
13 import java.io.OutputStream;
14 import java.net.URL;
15 import java.util.HashMap;
16 import java.util.Map;
17 
18 import com.android.volley.*;
19 import com.android.volley.toolbox.StringRequest;
20 import com.android.volley.toolbox.Volley;
21 
22 import javax.net.ssl.HttpsURLConnection;
23 
24 //volleyde get方式
25     public void bt4_onclick(View v)
26     {
27         //1-启动进度对话框
28         final ProgressDialog PD = ProgressDialog.show(this, null, "请稍等. . . ");
29         //构建StringRequest
30         StringRequest SR = new StringRequest(Request.Method.POST,"http://192.168.0.101:81/index.asp",
31                 new Response.Listener<String>() {
32                     @Override
33                     public void onResponse(String s) {
34                         //处理正常请求
35                         //在主线程运行
36                         et_2.setText(s);
37                         PD.dismiss();
38                     }
39                 },//这是逗号.
40                 new Response.ErrorListener() {
41                     @Override
42                     public void onErrorResponse(VolleyError volleyError) {
43                         //处理错误请求
44                         PD.dismiss();
45                         Toast.makeText(TestActivity3.this, "响应异常,响应状态码="+volleyError.networkResponse.statusCode,Toast.LENGTH_LONG).show();
46                     }
47                 }){
48             //继承重写get方法
49             @Override
50             protec
ted Map<String, String> getParams() throws AuthFailureError {
51                 Map<String,String>rtn = new HashMap<>();
52                 rtn.put("name","postvolley");
53                 rtn.put("password","567");
54                 return rtn;
55             }
56         };
57         //加入队列
58         RQ.add(SR);
59     }
60 }

界面文件代码:

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout
 3     xmlns:android="http://schemas.android.com/apk/res/android"
 4     xmlns:tools="http://schemas.android.com/tools"
 5     android:layout_width="match_parent"
 6     android:layout_height="match_parent"
 7     android:orientation="vertical"
 8     tools:context="com.hanqi.cunchu.TestActivity3">
 9     <LinearLayout
10         android:layout_width="match_parent"
11         android:layout_height="wrap_content"
12         android:orientation="horizontal">
13         <Button
14             android:layout_width="0dp"
15             android:layout_weight="1"
16             android:layout_height="wrap_content"
17             android:text="JDK-GET方式"
18             android:onClick="bt1_onclick"/>
19         <Button
20             android:layout_width="0dp"
21             android:layout_weight="1"
22             android:layout_height="wrap_content"
23             android:text="JDK-POST方式"
24             android:onClick="bt2_onclick"/>
25     </LinearLayout>
26     <EditText
27         android:layout_width="match_parent"
28         android:layout_height="200dp"
29         android:id="@+id/et_2"/>
30     <LinearLayout
31         android:layout_width="match_parent"
32         android:layout_height="wrap_content"
33         android:orientation="horizontal">
34         <Button
35             android:layout_width="0dp"
36             android:layout_weight="1"
37             android:layout_height="wrap_content"
38             android:text="Volley-GET方式"
39             android:onClick="bt3_onclick"/>
40         <Button
41             android:layout_width="0dp"
42             android:layout_weight="1"
43             android:layout_height="wrap_content"
44             android:text="Volley-POST方式"
45             android:onClick="bt4_onclick"/>
46     </LinearLayout>
47 </LinearLayout>