新增BT下载器

src/main/java/com/yutou/nas/utils/HttpTools.java

@@ -1,12 +1,10 @@
 package com.yutou.nas.utils;
 
 import com.alibaba.fastjson.JSONObject;
+import com.yutou.nas.interfaces.DownloadInterface;
 import com.yutou.nas.utils.Interfaces.NetworkInterface;
 
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.io.OutputStream;
+import java.io.*;
 import java.net.HttpURLConnection;
 import java.net.URL;
 import java.net.URLEncoder;
@@ -129,4 +127,60 @@ public class HttpTools {
         System.out.println(url);
         //String str=get(url);
     }
+    private static String donwloadPath="tmp"+File.separator;
+    public synchronized static void download(final String url, final String saveName, final DownloadInterface downloadInterface) {
+        new Thread(new Runnable() {
+            @Override
+            public void run() {
+                File jar = null;
+                try {
+                    File savePath = new File(donwloadPath);
+                    if (!savePath.exists()) {
+                        savePath.mkdirs();
+                    }
+                    Log.i("DOWNLOAD", "下载文件:" + url + " 保存文件:" + saveName);
+                    HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
+
+                    //   Log.i(TAG,"获取到网络请求："+connection.getResponseCode());
+
+
+                    InputStream inputStream = connection.getInputStream();
+                    jar = new File(donwloadPath + saveName + "_tmp.tmp");
+                    jar.createNewFile();
+                    Log.i("DOWNLOAD", "临时保存文件:" + jar.getAbsolutePath());
+                    OutputStream outputStream = new FileOutputStream(jar);
+                    byte[] bytes = new byte[1024];
+                    double size=connection.getContentLength();
+                    double downSize=0;
+                    int len;
+                    while ((len = inputStream.read(bytes)) > 0) {
+                        outputStream.write(bytes, 0, len);
+                        downSize+=len;
+                        if(downloadInterface!=null){
+                            downloadInterface.onDownloading(downSize,size);
+                        }
+                    }
+                    outputStream.close();
+                    inputStream.close();
+                    File oldJar = new File(donwloadPath + saveName);
+                    if (oldJar.exists()) {
+                        oldJar.delete();
+                    }
+                    jar.renameTo(oldJar);
+                    Log.i("DOWNLOAD", "实际保存：" + oldJar.getAbsolutePath() + " " + oldJar.getName());
+                    if (downloadInterface != null) {
+                        downloadInterface.onDownload(oldJar);
+
+                    }
+
+                } catch (Exception e) {
+                    e.printStackTrace();
+                    if (jar != null) {
+                        jar.delete();
+                    }
+                    downloadInterface.onError(e);
+                }
+            }
+        }).start();
+    }
 }