我想从画廊我的手机发送图片,我选择,并发送照片从手机到我的电脑,当我点击该按钮,它应该采取图片的路径,并把它放在一个文件中,并将其传送到我的电脑。我检查我的电脑上的code - 双方 - 和它的工作完全罚款
当我测试它,什么都不会发生!
下面是code:
服务器端:
进口java.io. *;
进口java.net *。
公共类文件服务器{
公共静态无效的主要(字串[] args)抛出IOException异常{
INT文件大小= 6022386; //文件大小暂难codeD
长时间启动= System.currentTimeMillis的();
INT读取动作;
INT电流= 0;
//创建套接字
ServerSocket的servsock =新的ServerSocket(1149);
而(真){
的System.out.println(等待...);
插座袜子= servsock.accept();
的System.out.println(接受连接:+袜子);
//接收文件
byte []的mybytearray =新的字节[文件大小]
InputStream的是= sock.getInputStream();
FileOutputStream中FOS =新的FileOutputStream(C:\\用户\\ \\阿瓦文件\\ WebOffice.jpg); //目标路径和文件名
的BufferedOutputStream BOS =新的BufferedOutputStream(FOS);
读取动作= is.read(mybytearray,0,mybytearray.length);
电流=读取动作;
//感谢A.加的斯的bug修复
做 {
读取动作=
is.read(mybytearray,目前,(mybytearray.length流));
如果(读取动作> = 0)电流+ =读取动作;
}而(读取动作&-1)〜;
bos.write(mybytearray,0,电流);
bos.flush();
长端= System.currentTimeMillis的();
的System.out.println(年底启动);
bos.close();
sock.close();
}
}
}
客户端(安卓):
包com.arwa.file.send;
进口java.io.BufferedInputStream中;
进口的java.io.File;
进口java.io.FileInputStream中;
进口java.io.IOException异常;
进口java.io.ObjectOutputStream中;
进口java.io.OutputStream中;
进口的java.net.Socket;
进口的java.net.UnknownHostException;
进口android.app.Activity;
进口android.content.Intent;
进口android.database.Cursor;
进口android.net.Uri;
进口android.os.Bundle;
进口android.provider.MediaStore;
进口android.view.View;
进口android.view.View.OnClickListener;
进口android.widget.Button;
进口android.widget.ImageView;
进口android.widget.TextView;
公共类SendfileActivity延伸活动{
/ **第一次创建活动时调用。 * /
私有静态最终诠释SELECT_PICTURE = 1;
私人字符串selectedImagePath;
私人ImageView的IMG;
@覆盖
公共无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.main);
的System.out.println(34);
IMG =(ImageView的)findViewById(R.id.ivPic);
的System.out.println(36);
((按钮)findViewById(R.id.bBrowse))
.setOnClickListener(新OnClickListener(){
公共无效的onClick(查看为arg0){
的System.out.println(40);
意向意图=新的意图();
intent.setType(图像/ *);
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(
Intent.createChooser(意向,选择图片),
SELECT_PICTURE);
的System.out.println(47);
}
});
;
的System.out.println(51);
按钮发送=(按钮)findViewById(R.id.bSend);
最后的TextView状态=(TextView中)findViewById(R.id.tvStatus);
send.setOnClickListener(新View.OnClickListener(){
@覆盖
公共无效的onClick(查看为arg0){
插座袜子;
尝试 {
袜子=新的Socket(MY_PCs_IP,1149);
的System.out.println(连接...);
// 发送文件
myfile文件=新的文件(selectedImagePath);
byte []的mybytearray =新的字节[(INT)myFile.length()];
的FileInputStream FIS =新的FileInputStream(MYFILE);
的BufferedInputStream双=新的BufferedInputStream(FIS);
bis.read(mybytearray,0,mybytearray.length);
OutputStream的OS = sock.getOutputStream();
的System.out.println(发送...);
os.write(mybytearray,0,mybytearray.length);
os.flush();
sock.close();
}赶上(UnknownHostException异常E){
// TODO自动生成的catch块
e.printStackTrace();
}赶上(IOException异常E){
// TODO自动生成的catch块
e.printStackTrace();
}
}
});
}
公共无效onActivityResult(INT申请code,INT结果code,意图数据){
如果(结果code == RESULT_OK){
如果(要求code == SELECT_PICTURE){
乌里selectedImageUri = data.getData();
selectedImagePath = getPath(selectedImageUri);
TextView的路径=(TextView中)findViewById(R.id.tvPath);
path.setText(映像路径:+ selectedImagePath);
img.setImageURI(selectedImageUri);
}
}
}
公共字符串getPath(URI URI){
的String []投影= {MediaStore.Images.Media.DATA};
光标光标= managedQuery(URI,投影,NULL,NULL,NULL);
INT与Column_Index =光标
.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
返回cursor.getString(Column_Index中);
}
}
XML code:
< XML版本=1.0编码=UTF-8&GT?;
< LinearLayout中的xmlns:机器人=http://schemas.android.com/apk/res/android
机器人:layout_width =FILL_PARENT
机器人:layout_height =FILL_PARENT
机器人:方向=垂直>
<的TextView
机器人:ID =@ + ID / tvStatus
机器人:layout_width =FILL_PARENT
机器人:layout_height =WRAP_CONTENT
机器人:文本=@字符串/你好/>
<的TextView
机器人:ID =@ + ID / tvPath
机器人:layout_width =WRAP_CONTENT
机器人:layout_height =WRAP_CONTENT
机器人:文本=路径:/>
<按钮
机器人:ID =@ + ID / bBrowse
机器人:layout_width =WRAP_CONTENT
机器人:layout_height =WRAP_CONTENT
机器人:文本=浏览>
< /按钮>
<按钮
机器人:ID =@ + ID / BSEND
机器人:layout_width =WRAP_CONTENT
机器人:layout_height =WRAP_CONTENT
机器人:文=发送/>
< ImageView的
机器人:ID =@ + ID / ivPic
机器人:layout_width =WRAP_CONTENT
机器人:layout_height =WRAP_CONTENT>
< / ImageView的>
< / LinearLayout中>
解决方案
你刚才添加的权限
<使用-权限的Android:名称=android.permission.ACCESS_NETWORK_STATE/>
<使用-权限的Android:名称=android.permission.INTERNET对/>
和它的工作完美。
I'm trying to send a picture I choose from the gallery on my phone, and send that picture from the phone to my PC, when I click on the button it should take the picture's path and put it in a file, and transfer it to my PC. I've checked the code on my PC - for both sides - and it worked totally fine.
When I test it out, nothing happens!
Here is the code:
Server side:
import java.io.*;
import java.net.*;
public class FileServer {
public static void main(String[] args) throws IOException {
int filesize=6022386; // filesize temporary hardcoded
long start = System.currentTimeMillis();
int bytesRead;
int current = 0;
// create socket
ServerSocket servsock = new ServerSocket(1149);
while (true) {
System.out.println("Waiting...");
Socket sock = servsock.accept();
System.out.println("Accepted connection : " + sock);
// receive file
byte [] mybytearray = new byte [filesize];
InputStream is = sock.getInputStream();
FileOutputStream fos = new FileOutputStream("C:\\Users\\Arwa\\Documents\\WebOffice.jpg"); // destination path and name of file
BufferedOutputStream bos = new BufferedOutputStream(fos);
bytesRead = is.read(mybytearray,0,mybytearray.length);
current = bytesRead;
// thanks to A. Cádiz for the bug fix
do {
bytesRead =
is.read(mybytearray, current, (mybytearray.length-current));
if(bytesRead >= 0) current += bytesRead;
} while(bytesRead > -1);
bos.write(mybytearray, 0 , current);
bos.flush();
long end = System.currentTimeMillis();
System.out.println(end-start);
bos.close();
sock.close();
}
}
}
Client side (Android):
package com.arwa.file.send;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.net.UnknownHostException;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
public class SendfileActivity extends Activity {
/** Called when the activity is first created. */
private static final int SELECT_PICTURE = 1;
private String selectedImagePath;
private ImageView img;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
System.out.println("34");
img = (ImageView) findViewById(R.id.ivPic);
System.out.println("36");
((Button) findViewById(R.id.bBrowse))
.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
System.out.println("40");
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(
Intent.createChooser(intent, "Select Picture"),
SELECT_PICTURE);
System.out.println("47");
}
});
;
System.out.println("51");
Button send = (Button) findViewById(R.id.bSend);
final TextView status = (TextView) findViewById(R.id.tvStatus);
send.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
Socket sock;
try {
sock = new Socket("MY_PCs_IP", 1149);
System.out.println("Connecting...");
// sendfile
File myFile = new File (selectedImagePath);
byte [] mybytearray = new byte [(int)myFile.length()];
FileInputStream fis = new FileInputStream(myFile);
BufferedInputStream bis = new BufferedInputStream(fis);
bis.read(mybytearray,0,mybytearray.length);
OutputStream os = sock.getOutputStream();
System.out.println("Sending...");
os.write(mybytearray,0,mybytearray.length);
os.flush();
sock.close();
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
}
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == SELECT_PICTURE) {
Uri selectedImageUri = data.getData();
selectedImagePath = getPath(selectedImageUri);
TextView path = (TextView) findViewById(R.id.tvPath);
path.setText("Image Path : " + selectedImagePath);
img.setImageURI(selectedImageUri);
}
}
}
public String getPath(Uri uri) {
String[] projection = { MediaStore.Images.Media.DATA };
Cursor cursor = managedQuery(uri, projection, null, null, null);
int column_index = cursor
.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
}
XML code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/tvStatus"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello" />
<TextView
android:id="@+id/tvPath"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Path: " />
<Button
android:id="@+id/bBrowse"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Browse" >
</Button>
<Button
android:id="@+id/bSend"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Send" />
<ImageView
android:id="@+id/ivPic"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
</ImageView>
</LinearLayout>
解决方案
you have just to add the permission
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.INTERNET"/>
and it will work perfect.