Merge pull request #688 from isshe/master

#93 #12 实验7:网络编程

app/src/main/java/edu/hzuapps/androidworks/homeworks/Net1314080903212/Net1314080903212GetRemoteFile.java

@@ -0,0 +1,84 @@
+package com.example.dell.multichat;
+
+import android.os.Environment;
+import android.os.Handler;
+import android.os.Looper;
+import android.os.Message;
+import android.renderscript.ScriptGroup;
+import android.widget.TextView;
+
+import java.io.BufferedInputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.RandomAccessFile;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLConnection;
+
+/**
+ * Created by dell on 2016/4/28.
+ */
+public class Net1314080903212GetRemoteFile implements Runnable{
+    public TextView GRFshow;
+    public Handler sendHandler;
+
+    public void Net1314080903212GetRemoteFile(Handler handler)
+    {
+        sendHandler = handler;
+    }
+
+    public void run()
+    {
+        try {
+            System.out.println("before new URL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
+            URL git_url = new URL("https://raw.githubusercontent.com/OurScream/PerIntBank/master/README.md");
+
+            System.out.println("before new URLConnection!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
+            //打开url链接
+            URLConnection git_con = git_url.openConnection();
+
+            //获取数据
+ //           InputStream is = git_con.getInputStream();                         //方法1
+ //           BufferedInputStream bis = new BufferedInputStream(is);
+            InputStream bis = git_url.openStream();                              //方法2
+
+            int read_len = 0;
+            byte[] readbyte = new byte[1024];
+
+            System.out.println("before new get_path!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
+            //新建文件
+            File get_path =  Environment.getExternalStorageDirectory();     //
+            File file =  new File(get_path.getCanonicalPath() , "ChatHistory");
+
+            //判断历史记录文件是否存在， 不存在则创建
+            if (!file.exists()){
+                    file.createNewFile();
+                    System.out.println("GetRemoteFile: 创建文件!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
+            }
+
+            while((read_len = bis.read(readbyte)) != -1)
+            {
+                RandomAccessFile raf = new RandomAccessFile(file,"rw");
+                raf.seek(file.length());
+                raf.write(readbyte);                    //这里的换行不知道可不可以！
+                System.out.println(readbyte.toString() + "GetRemoteFile: 看看一条记录大概都长:" + file.length());
+                raf.close();
+            }
+            //再读一次文件
+            Message msg = new Message();
+            msg.what = 0x789;
+            sendHandler.sendMessage(msg);
+
+//            new Net1314080903212RH().file_read(new Net1314080903212MultiChat().show);
+        }
+        catch(MalformedURLException murle)
+        {
+            murle.printStackTrace();
+        }
+        catch(IOException ioe)
+        {
+            ioe.printStackTrace();
+        }
+    }
+}

app/src/main/java/edu/hzuapps/androidworks/homeworks/Net1314080903212/Net1314080903212MultiChat.xml

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+实验7：网络编程