android上传图片（同步上传）

下面是android上传图片的全部代码

EX08_11.java

packageirdc.ex08_11;
/*import相关class*/
importjava.io.DataOutputStream;
importjava.io.FileInputStream;
importjava.io.InputStream;
importjava.net.HttpURLConnection;
importjava.net.URL;
importandroid.app.Activity;
importandroid.app.AlertDialog;
importandroid.content.DialogInterface;
importandroid.os.Bundle;
importandroid.view.View;
importandroid.widget.Button;
importandroid.widget.TextView;

publicclassEX08_11extendsActivity
{
/*变量声明
*newName：上传后在服务器上的文件名称
*uploadFile：要上传的文件路径
*actionUrl：吱服器勺对应的程序路径*/
privateStringnewName="image.jpg";
privateStringuploadFile="/mnt/sdcard/DCIM/Camera/Icon-Small.png";
privateStringactionUrl="http://nc.8ff.cn/android_upload_o.php";
privateTextViewmText1;
privateTextViewmText2;
privateButtonmButton;

@Override
publicvoidonCreate(BundlesavedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

mText1=(TextView)findViewById(R.id.myText2);
mText1.setText("文件路径：\n"+uploadFile);
mText2=(TextView)findViewById(R.id.myText3);
mText2.setText("上传网址：\n"+actionUrl);
/*设定mButton的onClick事件处理*/
mButton=(Button)findViewById(R.id.myButton);
mButton.setOnClickListener(newView.OnClickListener()
{
publicvoidonClick(Viewv)
{
uploadFile();
}
});
}

/*上传文件吹Server的method*/
privatevoiduploadFile()
{
Stringend="\r\n";
StringtwoHyphens="--";
Stringboundary="*****";
try
{
URLurl=newURL(actionUrl);
HttpURLConnectioncon=(HttpURLConnection)url.openConnection();
/*允许Input、Output，不使用Cache*/
con.setDoInput(true);
con.setDoOutput(true);
con.setUseCaches(false);
/*设定传送的method=POST*/
con.setRequestMethod("POST");
/*setRequestProperty*/
con.setRequestProperty("Connection","Keep-Alive");
con.setRequestProperty("Charset","UTF-8");
con.setRequestProperty("Content-Type",
"multipart/form-data;boundary="+boundary);
/*设定DataOutputStream*/
DataOutputStreamds=
newDataOutputStream(con.getOutputStream());
ds.writeBytes(twoHyphens+boundary+end);
ds.writeBytes("Content-Disposition:form-data;"+
"name=\"file1\";filename=\""+
newName+"\""+end);
ds.writeBytes(end);

/*取得文件的FileInputStream*/
FileInputStreamfStream=newFileInputStream(uploadFile);
/*设定每次写入1024bytes*/
intbufferSize=1024;
byte[]buffer=newbyte[bufferSize];

intlength=-1;
/*从文件读取数据到缓冲区*/
while((length=fStream.read(buffer))!=-1)
{
/*将数据写入DataOutputStream中*/
ds.write(buffer,0,length);
}
ds.writeBytes(end);
ds.writeBytes(twoHyphens+boundary+twoHyphens+end);

/*closestreams*/
fStream.close();
ds.flush();

/*取得Response内容*/
InputStreamis=con.getInputStream();
intch;
StringBufferb=newStringBuffer();
while((ch=is.read())!=-1)
{
b.append((char)ch);
}
/*将Response显示于Dialog*/
showDialog(b.toString().trim());
/*关闭DataOutputStream*/
ds.close();
}
catch(Exceptione)
{
showDialog(""+e);
}
}

/*显示Dialog的method*/
privatevoidshowDialog(Stringmess)
{
newAlertDialog.Builder(EX08_11.this).setTitle("Message")
.setMessage(mess)
.setNegativeButton("确定",newDialogInterface.OnClickListener()
{
publicvoidonClick(DialogInterfacedialog,intwhich)
{
}
})
.show();
}
}

main.xml
<?xmlversion="1.0"encoding="utf-8"?>
<AbsoluteLayout
android:id="@+id/layout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/white"
xmlns:android="http://schemas.android.com/apk/res/android"
>
<TextView
android:id="@+id/myText1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/str_title"
android:textSize="20sp"
android:textColor="@drawable/black"
android:layout_x="10px"
android:layout_y="12px"
/>
<TextView
android:id="@+id/myText2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="16sp"
android:textColor="@drawable/black"
android:layout_x="10px"
android:layout_y="52px"
/>
<TextView
android:id="@+id/myText3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="16sp"
android:textColor="@drawable/black"
android:layout_x="10px"
android:layout_y="102px"
/>
<Button
android:id="@+id/myButton"
android:layout_width="92px"
android:layout_height="49px"
android:text="@string/str_button"
android:textSize="15sp"
android:layout_x="90px"
android:layout_y="170px"
/>
</AbsoluteLayout>

服务器中的php文件android_upload_o.php
<?php
error_reporting(0);
$uploaddir='./data/attachment/forum/201111/23/wwws.jpg';
if(move_uploaded_file($_FILES['file1']['tmp_name'],$uploaddir)){
echo"<script>alert('上传成功！');location.href='".$uploaddir."';</script>";
//echo$uploaddir;
}
else
{
echo"errors";
}

需要添加访问INTERNET权限

运行以上代码在android4.0发生异常

解决方法

在onCreate添加

StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder().detectDiskReads().detectDiskWrites().detectNetwork().penaltyLog().build());

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