今日课堂总结

VOLLEY-GAT方式:

package com.hanqi.cunchu;

import android.app.ProgressDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

import java.io.InputStream;
import java.io.ObjectStreamClass;
import java.io.OutputStream;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;

import com.android.volley.*;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;

import javax.net.ssl.HttpsURLConnection;

public class TestActivity3 extends AppCompatActivity {
    EditText et_2;
    //请求队列
    RequestQueue RQ;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_test3);
        et_2=(EditText)findViewById(R.id.et_2);
        //创建Volley的请求队列
        //在子线程
        RQ= Volley.newRequestQueue(this);
    }
    //volleyde get方式
    public void bt3_onclick(View v)
    {
        //1-启动进度对话框
        final ProgressDialog PD = ProgressDialog.show(this, null, "请稍等. . . ");
        //构建StringRequest
            StringRequest SR = new StringRequest("http://192.168.0.101:81/index.asp?name=tom&password=456",
                    new Response.Listener<String>() {
                        @Override
                        public void onResponse(String s) {
                            //处理正常请求
                            //在主线程运行
                            et_2.setText(s);
                            PD.dismiss();
                        }
                    },//这是逗号.
                    new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError volleyError) {
                    //处理错误请求
                    PD.dismiss();
                    Toast.makeText(TestActivity3.this, "响应异常,响应状态码="+volleyError.networkResponse.statusCode,Toast.LENGTH_LONG).show();
                }
            });
        //加入队列
        RQ.add(SR);
    }
}

VOLLEY-POST方式:

package com.hanqi.cunchu;

import android.app.ProgressDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

import java.io.InputStream;
import java.io.ObjectStreamClass;
import java.io.OutputStream;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;

import com.android.volley.*;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;

import javax.net.ssl.HttpsURLConnection;

//volleyde get方式
    public void bt4_onclick(View v)
    {
        //1-启动进度对话框
        final ProgressDialog PD = ProgressDialog.show(this, null, "请稍等. . . ");
        //构建StringRequest
        StringRequest SR = new StringRequest(Request.Method.POST,"http://192.168.0.101:81/index.asp",
                new Response.Listener<String>() {
                    @Override
                    public void onResponse(String s) {
                        //处理正常请求
                        //在主线程运行
                        et_2.setText(s);
                        PD.dismiss();
                    }
                },//这是逗号.
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError volleyError) {
                        //处理错误请求
                        PD.dismiss();
                        Toast.makeText(TestActivity3.this, "响应异常,响应状态码="+volleyError.networkResponse.statusCode,Toast.LENGTH_LONG).show();
                    }
                }){
            //继承重写get方法
            @Override
            protec
ted Map<String, String> getParams() throws AuthFailureError {
                Map<String,String>rtn = new HashMap<>();
                rtn.put("name","postvolley");
                rtn.put("password","567");
                return rtn;
            }
        };
        //加入队列
        RQ.add(SR);
    }
}

界面文件代码:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    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"
    android:orientation="vertical"
    tools:context="com.hanqi.cunchu.TestActivity3">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <Button
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="wrap_content"
            android:text="JDK-GET方式"
            android:onClick="bt1_onclick"/>
        <Button
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="wrap_content"
            android:text="JDK-POST方式"
            android:onClick="bt2_onclick"/>
    </LinearLayout>
    <EditText
        android:layout_width="match_parent"
        android:layout_height="200dp"
        android:id="@+id/et_2"/>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <Button
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="wrap_content"
            android:text="Volley-GET方式"
            android:onClick="bt3_onclick"/>
        <Button
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="wrap_content"
            android:text="Volley-POST方式"
            android:onClick="bt4_onclick"/>
    </LinearLayout>
</LinearLayout>