android利用Serialization向服务器端发送任意的文件（一）

1、 先创建一个Java实现了Serializable接口的类FilePojo，代码如下：

 

// 必须实现Serializable接口。否则无法调用ObjectOutputStream的

// writeObject方法，或者ObjectInputStream中的readObject方法

public class FilePojo implements Serializable

{

         private static final long serialVersionUID = 1L;

         private String fileName;            // 文件名称

         private long fileLength;             // 文件长度

         private byte[] fileContent;          // 文件内容

         public String getFileName()

         {

                   return fileName;

         }

         public void setFileName(String fileName)

         {

                   this.fileName = fileName;

         }

            public long getFileLength()

         {

                   return fileLength;

         }

         public void setFileLength(long fileLength)

         {

                   this.fileLength = fileLength;

         }

         public byte[] getFileContent()

         {

                   return fileContent;

         }

         public void setFileContent(byte[] fileContent)

         {

                   this.fileContent = fileContent;

        }

}

 

这个类将在服务器端和客户端都需要也会被用到。

2、编写服务端代码如下：

public class ObjectServer

{

         public static void main(String[] args) throws ClassNotFoundException

         {

                   ServerSocket serverSocket;

                   FileOutputStream fos;

                   try

                   {

                            serverSocket = new ServerSocket(433);

                            while(true)

                            {

                                      Socket clientSocket = serverSocket.accept();

         System.out.println("socket open");

                                     // 从clientSocket获取ObjectInputStream对象

                                     ObjectInputStream ois = new ObjectInputStream(clientSocket.getInputStream());

                                     // 读取从客户端传递过来的FilePojo对象

                                     FilePojo fpo = (FilePojo) ois.readObject();

                                     System.out.println(fpo.getFileName());

                                     System.out.println(fpo.getFileLength());

                                     // 初始化FileOutputStream对象fos

                                     fos = new FileOutputStream("D:\\" + fpo.getFileName());

                                     // 将fpo中的内容写入fpo

                                     fos.write(fpo.getFileContent(), 0, (int)fpo.getFileLength());

                                     fos.close();

                                     ois.close();

                            }

                   }

                   catch(IOException ioe)

                   {

                            System.out.println("socket error and closed");

                   }

         }

}

 

3、编写Android客户端端代码如下：

显示layout文件：main.xml

 

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout 

    xmlns:android="http://schemas.android.com/apk/res/android"

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent" >

         <Button android:id="@+id/btn1"

                   android:layout_width="fill_parent"

                   android:layout_height="wrap_content"

                   android:text="发送图片">

 

         </Button>

</LinearLayout>

再是Activty代码

接android利用Serialization向服务器端发送任意的文件（二）