远程存储程序

程序清单文件：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.hanqi.cunchu">

    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <!-- 操作文件权限 -->
    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>

    <uses-permission android:name="android.permission.INTERNET"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity" />
        <activity android:name=".lianxi" />
        <activity android:name=".shujuku">

        </activity>
        <activity android:name=".TestActivity3">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

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">
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="JDK-GET方式"
        android:onClick="bt1_onclick"/>
    <EditText
        android:layout_width="match_parent"
        android:layout_height="200dp"
        android:id="@+id/et_2"/>
</LinearLayout>

程序运行代码

package com.hanqi.cunchu;

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

import java.io.InputStream;
import java.net.URL;

import javax.net.ssl.HttpsURLConnection;

public class TestActivity3 extends AppCompatActivity {
    EditText et_2;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_test3);

        et_2=(EditText)findViewById(R.id.et_2);
    }
    //JDK的get方式
    public void bt1_onclick(View v)
    {
        //1-进度对话框
        final ProgressDialog progressDialog = ProgressDialog
                .show(this, null, "正在加载中. . .");
        //2-开启子线程,访问网络
        new Thread()
        {
            public void run()
            {
                try
                {
                    //1-URL
                    URL url = new URL(et_2.getText().toString()+"?name=tom");
                    //2-URL获取连接
                    HttpsURLConnection httpsURLConnection = (HttpsURLConnection)url.openConnection();
                    //请求方式
                    httpsURLConnection.setRequestMethod("GET");
                    //设置超时
                    httpsURLConnection.setConnectTimeout(3000);
                    httpsURLConnection.setReadTimeout(3000);
                    //连接并发送请求
                    httpsURLConnection.connect();
                    //接收：判断返回状态码-200
                    int code = httpsURLConnection.getResponseCode();
                    if (code==2000)
                    {
                        //接收数据
                        //输入流：
                        InputStream inputStream = httpsURLConnection.getInputStream();
                        //读取流
                        //1-byte数组
                        byte[]bytes = new byte[1024];
                        //2-读到数组的长度
                        int i = 0;
                        //3-数据
                        final StringBuffer stringBuffer1 = new StringBuffer();
                        while((i=inputStream.read(bytes))>0)
                        {
                            stringBuffer1.append(new String(bytes,0,i));
                        }
                        //释放资源
                        inputStream.close();
                        httpsURLConnection.disconnect();

                        //通过主线程显示信息和关闭对话框
                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                et_2.setText(stringBuffer1);
                                progressDialog.dismiss();
                            }
                        });
                    }
                    else
                    {
                        Toast.makeText(TestActivity3.this, "连接错误，返回的状态码="+code, Toast.LENGTH_SHORT).show();
                    }
                }
                catch (Exception e)
                {
                    e.printStackTrace();
                    progressDialog.dismiss();
                }
            }
        }.start();
    }
}