Android -线程池 批量上传图片 -附php接收代码

（出处：http://www.cnblogs.com/linguanh/）

目录：

　　1，前序

　　2，类特点

　　3，用法

　　4，java代码

　　5，php代码

1，前序

　　还是源于重构，看着之前为赶时间写着的碎片化的代码，甚是悲剧，臃肿且长，其实重构也是一个提高的过程，重构过程中会接触到更多的知识点。至少，我现在意识到，那怕是听过、有这样的意识而没真正动过手都是不行的，多线程并发最好使用线程池而不要一味地 new Thread(...).start()。下面我分享个自己刚写好的图片批量上传类，顺带server端接口代码，已经过测试，一套直接可用。

2，本类特点

　　1、耦合度低，操作简单、使用时仅 6 行代码即可直接 批量上传完图片；

　　2、使用的是软化线程池对象，内存消耗这方面可以放心地交给系统处理；

　　3、采用链式操作，配置方便；

　　4、自带上传函数，光学习这个都够了；

　　5、懒人必备...

3，使用例子

new PicUpLoadExecutor(3)// 并发数       
　　　　  .withUpLoadUrl(url)   // 服务端接口文件的url
        .withHandler(handler) // 发完后发消息的handler
        .exec(picBitmaps);    // 要上传的图片bitmaps

4，client端java类

注释已经很丰富，不懂请留言

package cn.share.bananacloud.post.send;

import android.graphics.Bitmap;
import android.os.Handler;
import android.util.Log;

import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.lang.ref.SoftReference;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;

/**
 *  Created by 林冠宏 on 2016/4/30.
 *
 *  1,线程池批量上传图片类，选用 newFixedThreadPool
 *  2,以 Bitmap 数组为例子
 *  3,自定义一个 图片上传 函数
 *
 */

public class PicUpLoadExecutor {

    private static final String TAG = "PicUpLoadHelper";
    public static final int UpLoadFinish = 0x321;

    /** 如果你不想内存不足是它们被gc掉，请换为强引用 */
    private SoftReference<ExecutorService> fixedThreadPool = null;

    /** 并发数>0 --1 ~ 128,用 short 足以 */
    private short poolSize = 1;
    private Handler handler = null;
    private ExecListenter ExecListenter;
    private String url = null;

    public PicUpLoadExecutor(short poolSize){
        fixedThreadPool = new SoftReference<ExecutorService>(Executors.newFixedThreadPool(poolSize));
    }

    public PicUpLoadExecutor(short poolSize,ThreadFactory threadFactory){
        fixedThreadPool = new SoftReference<ExecutorService>(Executors.newFixedThreadPool(poolSize,threadFactory));
    }

    /** 设置并发数 */
    /*public PicUpLoadExecutor withPoolSize(short poolSize){
        this.poolSize = poolSize;
        return this;
    }*/

    /** 设置图片总数，已直接换为图片数目 */
    /*public PicUpLoadHelper withPicSize(short poolSize){
        this.picSize = picSize;
        return this;
    }*/

    /** 设置图片上传路径 */
    public PicUpLoadExecutor withUpLoadUrl(String url){
        this.url = url;
        return this;
    }

    /** 设置handler */
    public PicUpLoadExecutor withHandler(Handler handler){
        this.handler = handler;
        return this;
    }

    /** 设置自定义 run 函数接口 */
    /*public PicUpLoadHelper withExecRunnableListenter(ExecRunnableListenter ExecRunnableListenter){
        this.ExecRunnableListenter = ExecRunnableListenter;
        return this;
    }*/

    /** 设置开始前接口 */
    public PicUpLoadExecutor withBeforeExecListenter(ExecListenter ExecListenter){
        this.ExecListenter = ExecListenter;
        return this;
    }


    public ExecutorService getFixedThreadPool(){
        return fixedThreadPool.get();
    }

    /** 开发原则--接口分离 */

    /** 自定义run接口 */
    public interface ExecRunnableListenter{
        void onRun(int i);
    }

    /** 开始任务前接口，没用到，可自行设置 */
    public interface ExecListenter{
        void onBeforeExec();
    }

    /** 为减少 程序计数器 每次在循环时花费在 if else 的时间，这里还是 重载一次 好 */

    public void exec(final Bitmap[] bitmaps,final ExecRunnableListenter ExecRunnableListenter){
        if(bitmaps==null){
            return;
        }
        if(ExecRunnableListenter!=null){
            int picNums = bitmaps.length;
            for(int i=0;i<picNums;i++){
                /** 自定义执行上传任务 */
                final int picIndex = i;
                fixedThreadPool.get().execute(new Runnable() {
                    @Override
                    public void run() {
                        ExecRunnableListenter.onRun(picIndex);
                    }
                });
            }
        }
    }

    public void exec(final Bitmap[] bitmaps){
        if(bitmaps==null){
            return;
        }
        int picNums = bitmaps.length;
        for(int i=0;i<picNums;i++){
            /** 默认执行上传任务 */
            final int picIndex = i;
            fixedThreadPool.get().execute(new Runnable() {
                @Override
                public void run() {
                    /** 批量 上传 图片，此静态函数若有使用全局变量，必须要 加 synchronized */
                    String json = uploadPic
                            (
                                    url,
                                    "" + picIndex + ".jpg", /** 我自己情况的上传 */
                                    bitmaps[picIndex]       /** 对应的图片流 */
                            );
                    if(json!=null){
                        /** 服务器上传成功返回的标示, 自己修改吧，我这里是我的情况 */
                        if(json.trim().equals("yes")){
                            /** UpLoadFinish 是每次传完一张发信息的信息标示 */
                            handler.sendEmptyMessage(UpLoadFinish);
                        }
                    }
                    Log.d(TAG,"pic "+picIndex+" upLoad json ---> "+json);
                }
            });
        }
    }

    /** 若有依赖全局变量必须加 synchronized */
    /** 此函数采用 tcp 数据包传输 */
    public static String uploadPic(String uploadUrl,String filename,Bitmap bit){
        String end = " "; /** 结束符 */
        String twoHyphens = "--";
        String boundary = "******"; /** 数据包头，设置格式没强性要求 */
        int compress=100; /** 压缩初始值 */
        try{
            HttpURLConnection httpURLConnection
                    = (HttpURLConnection) new URL(uploadUrl).openConnection();
            /** 设置每次传输的流大小，可以有效防止手机因为内存不足崩溃 */
            /** 此方法用于在预先不知道内容长度时启用没有进行内部缓冲的 HTTP 请求正文的流。*/
            httpURLConnection.setChunkedStreamingMode(256 * 1024);// 256K

            httpURLConnection.setConnectTimeout(10*1000);
            httpURLConnection.setDoInput(true);
            httpURLConnection.setDoOutput(true);
            httpURLConnection.setUseCaches(false);

            httpURLConnection.setRequestMethod("POST");
            /** tcp链接，防止丢包，需要进行长链接设置 */
            httpURLConnection.setRequestProperty("Connection", "Keep-Alive");
            httpURLConnection.setRequestProperty("Charset", "UTF-8");
            httpURLConnection.setRequestProperty("Content-Type","multipart/form-data;boundary=" + boundary);

            /** 发送报头操作，dos 也是流发送体 */
            DataOutputStream dos = new DataOutputStream(httpURLConnection.getOutputStream());
            dos.writeBytes(twoHyphens + boundary + end);
            /** uploadedfile 是接口文件的接受流的键，client 和 server 要同步 */
            dos.writeBytes("Content-Disposition: form-data; name="uploadedfile"; filename=""
                    + filename.substring(filename.lastIndexOf("/") + 1)
                    + """
                    + end);
            dos.writeBytes(end);

            /** 下面是压缩操作 */
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            bit.compress(Bitmap.CompressFormat.JPEG, compress, baos);
            while (baos.toByteArray().length / 1024 > 500) {
                Log.d(TAG,"compress time ");
                baos.reset();
                compress -= 10;
                if(compress==0){
                    bit.compress(Bitmap.CompressFormat.JPEG, compress, baos);
                    break;
                }
                bit.compress(Bitmap.CompressFormat.JPEG, compress, baos);
            }

            /** 发送比特流 */
            InputStream fis = new ByteArrayInputStream(baos.toByteArray());
            byte[] buffer = new byte[10*1024]; // 8k+2k
            int count = 0;
            while ((count = fis.read(buffer)) != -1) {
                dos.write(buffer, 0, count);
            }
            fis.close();
            dos.writeBytes(end);
            dos.writeBytes(twoHyphens + boundary + twoHyphens + end);
            dos.flush();

            /** 获取返回值 */
            InputStream is = httpURLConnection.getInputStream();
            InputStreamReader isr = new InputStreamReader(is, "utf-8");
            BufferedReader br = new BufferedReader(isr);
            String result = br.readLine();

            Log.d(TAG, "send pic result "+result);
            dos.close();
            is.close();
            return result;
        } catch (Exception e){
            e.printStackTrace();
            Log.d(TAG, e.toString());
            return null;
        }
    }
}

  1 package cn.share.bananacloud.post.send;
  2 
  3 import android.graphics.Bitmap;
  4 import android.os.Handler;
  5 import android.util.Log;
  6 
  7 import java.io.BufferedReader;
  8 import java.io.ByteArrayInputStream;
  9 import java.io.ByteArrayOutputStream;
 10 import java.io.DataOutputStream;
 11 import java.io.InputStream;
 12 import java.io.InputStreamReader;
 13 import java.lang.ref.SoftReference;
 14 import java.net.HttpURLConnection;
 15 import java.net.URL;
 16 import java.util.concurrent.ExecutorService;
 17 import java.util.concurrent.Executors;
 18 import java.util.concurrent.ThreadFactory;
 19 
 20 /**
 21  *  Created by 林冠宏 on 2016/4/30.
 22  *
 23  *  1,线程池批量上传图片类，选用 newFixedThreadPool
 24  *  2,以 Bitmap 数组为例子
 25  *  3,自定义一个 图片上传 函数
 26  *
 27  */
 28 
 29 public class PicUpLoadExecutor {
 30 
 31     private static final String TAG = "PicUpLoadHelper";
 32     public static final int UpLoadFinish = 0x321;
 33 
 34     /** 如果你不想内存不足是它们被gc掉，请换为强引用 */
 35     private SoftReference<ExecutorService> fixedThreadPool = null;
 36 
 37     /** 并发数>0 --1 ~ 128,用 short 足以 */
 38     private short poolSize = 1;
 39     private Handler handler = null;
 40     private ExecListenter ExecListenter;
 41     private String url = null;
 42 
 43     public PicUpLoadExecutor(short poolSize){
 44         fixedThreadPool = new SoftReference<ExecutorService>(Executors.newFixedThreadPool(poolSize));
 45     }
 46 
 47     public PicUpLoadExecutor(short poolSize,ThreadFactory threadFactory){
 48         fixedThreadPool = new SoftReference<ExecutorService>(Executors.newFixedThreadPool(poolSize,threadFactory));
 49     }
 50 
 51     /** 设置并发数 */
 52     /*public PicUpLoadExecutor withPoolSize(short poolSize){
 53         this.poolSize = poolSize;
 54         return this;
 55     }*/
 56 
 57     /** 设置图片总数，已直接换为图片数目 */
 58     /*public PicUpLoadHelper withPicSize(short poolSize){
 59         this.picSize = picSize;
 60         return this;
 61     }*/
 62 
 63     /** 设置图片上传路径 */
 64     public PicUpLoadExecutor withUpLoadUrl(String url){
 65         this.url = url;
 66         return this;
 67     }
 68 
 69     /** 设置handler */
 70     public PicUpLoadExecutor withHandler(Handler handler){
 71         this.handler = handler;
 72         return this;
 73     }
 74 
 75     /** 设置自定义 run 函数接口 */
 76     /*public PicUpLoadHelper withExecRunnableListenter(ExecRunnableListenter ExecRunnableListenter){
 77         this.ExecRunnableListenter = ExecRunnableListenter;
 78         return this;
 79     }*/
 80 
 81     /** 设置开始前接口 */
 82     public PicUpLoadExecutor withBeforeExecListenter(ExecListenter ExecListenter){
 83         this.ExecListenter = ExecListenter;
 84         return this;
 85     }
 86 
 87 
 88     public ExecutorService getFixedThreadPool(){
 89         return fixedThreadPool.get();
 90     }
 91 
 92     /** 开发原则--接口分离 */
 93 
 94     /** 自定义run接口 */
 95     public interface ExecRunnableListenter{
 96         void onRun(int i);
 97     }
 98 
 99     /** 开始任务前接口，没用到，可自行设置 */
100     public interface ExecListenter{
101         void onBeforeExec();
102     }
103 
104     /** 为减少 程序计数器 每次在循环时花费在 if else 的时间，这里还是 重载一次 好 */
105 
106     public void exec(final Bitmap[] bitmaps,final ExecRunnableListenter ExecRunnableListenter){
107         if(bitmaps==null){
108             return;
109         }
110         if(ExecRunnableListenter!=null){
111             int picNums = bitmaps.length;
112             for(int i=0;i<picNums;i++){
113                 /** 自定义执行上传任务 */
114                 final int picIndex = i;
115                 fixedThreadPool.get().execute(new Runnable() {
116                     @Override
117                     public void run() {
118                         ExecRunnableListenter.onRun(picIndex);
119                     }
120                 });
121             }
122         }
123     }
124 
125     public void exec(final Bitmap[] bitmaps){
126         if(bitmaps==null){
127             return;
128         }
129         int picNums = bitmaps.length;
130         for(int i=0;i<picNums;i++){
131             /** 默认执行上传任务 */
132             final int picIndex = i;
133             fixedThreadPool.get().execute(new Runnable() {
134                 @Override
135                 public void run() {
136                     /** 批量 上传 图片，此静态函数若有使用全局变量，必须要 加 synchronized */
137                     String json = uploadPic
138                             (
139                                     url,
140                                     "" + picIndex + ".jpg", /** 我自己情况的上传 */
141                                     bitmaps[picIndex]       /** 对应的图片流 */
142                             );
143                     if(json!=null){
144                         /** 服务器上传成功返回的标示, 自己修改吧，我这里是我的情况 */
145                         if(json.trim().equals("yes")){
146                             /** UpLoadFinish 是每次传完一张发信息的信息标示 */
147                             handler.sendEmptyMessage(UpLoadFinish);
148                         }
149                     }
150                     Log.d(TAG,"pic "+picIndex+" upLoad json ---> "+json);
151                 }
152             });
153         }
154     }
155 
156     /** 若有依赖全局变量必须加 synchronized */
157     /** 此函数采用 tcp 数据包传输 */
158     public static String uploadPic(String uploadUrl,String filename,Bitmap bit){
159         String end = "
"; /** 结束符 */
160         String twoHyphens = "--";
161         String boundary = "******"; /** 数据包头，设置格式没强性要求 */
162         int compress=100; /** 压缩初始值 */
163         try{
164             HttpURLConnection httpURLConnection
165                     = (HttpURLConnection) new URL(uploadUrl).openConnection();
166             /** 设置每次传输的流大小，可以有效防止手机因为内存不足崩溃 */
167             /** 此方法用于在预先不知道内容长度时启用没有进行内部缓冲的 HTTP 请求正文的流。*/
168             httpURLConnection.setChunkedStreamingMode(256 * 1024);// 256K
169 
170             httpURLConnection.setConnectTimeout(10*1000);
171             httpURLConnection.setDoInput(true);
172             httpURLConnection.setDoOutput(true);
173             httpURLConnection.setUseCaches(false);
174 
175             httpURLConnection.setRequestMethod("POST");
176             /** tcp链接，防止丢包，需要进行长链接设置 */
177             httpURLConnection.setRequestProperty("Connection", "Keep-Alive");
178             httpURLConnection.setRequestProperty("Charset", "UTF-8");
179             httpURLConnection.setRequestProperty("Content-Type","multipart/form-data;boundary=" + boundary);
180 
181             /** 发送报头操作，dos 也是流发送体 */
182             DataOutputStream dos = new DataOutputStream(httpURLConnection.getOutputStream());
183             dos.writeBytes(twoHyphens + boundary + end);
184             /** uploadedfile 是接口文件的接受流的键，client 和 server 要同步 */
185             dos.writeBytes("Content-Disposition: form-data; name="uploadedfile"; filename=""
186                     + filename.substring(filename.lastIndexOf("/") + 1)
187                     + """
188                     + end);
189             dos.writeBytes(end);
190 
191             /** 下面是压缩操作 */
192             ByteArrayOutputStream baos = new ByteArrayOutputStream();
193             bit.compress(Bitmap.CompressFormat.JPEG, compress, baos);
194             while (baos.toByteArray().length / 1024 > 500) {
195                 Log.d(TAG,"compress time ");
196                 baos.reset();
197                 compress -= 10;
198                 if(compress==0){
199                     bit.compress(Bitmap.CompressFormat.JPEG, compress, baos);
200                     break;
201                 }
202                 bit.compress(Bitmap.CompressFormat.JPEG, compress, baos);
203             }
204 
205             /** 发送比特流 */
206             InputStream fis = new ByteArrayInputStream(baos.toByteArray());
207             byte[] buffer = new byte[10*1024]; // 8k+2k
208             int count = 0;
209             while ((count = fis.read(buffer)) != -1) {
210                 dos.write(buffer, 0, count);
211             }
212             fis.close();
213             dos.writeBytes(end);
214             dos.writeBytes(twoHyphens + boundary + twoHyphens + end);
215             dos.flush();
216 
217             /** 获取返回值 */
218             InputStream is = httpURLConnection.getInputStream();
219             InputStreamReader isr = new InputStreamReader(is, "utf-8");
220             BufferedReader br = new BufferedReader(isr);
221             String result = br.readLine();
222 
223             Log.d(TAG, "send pic result "+result);
224             dos.close();
225             is.close();
226             return result;
227         } catch (Exception e){
228             e.printStackTrace();
229             Log.d(TAG, e.toString());
230             return null;
231         }
232     }
233 }

5，server端接受代码 php

 1 <?php
 2 /**
 3  * Created by PhpStorm.
 4  * User: Administrator
 5  * Date: 2016/4/30
 6  * Time: 15:37
 7  */
 8 
 9 // $_FILES['uploadedfile']['name'] 是传过来的图片名称
10 
11 $target_path = "要保存到的路径";
12 
13 if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) {
14     echo "yes";
15 }  else{
16     echo "no";
17 }
18 
19 
20 ?>