最近试验android拍照上传的功能，基本顺利。
试验条件，
客户端，android2.2
服务器端，linux, nginx php 5.2
android 代码如下：
PHP代码如下：
<?php
///如果有上传文件则接收
if($_FILES){
$target_path = $target_path . basename( $_FILES['file1']['name']);
try{ if(move_uploaded_file($_FILES['file1']['tmp_name'], $target_path)) {
echo "The file ". basename( $_FILES['file1']['name']). " has been uploaded";
}
} catch( Exception $e ) {
echo $e->getMessage(); }
}
else ///如果不是上传文件则列出图片
{
file_list(".");
}
function file_list($path){
$im_type=array('bmp','jpg','jpeg','png','gif');
if ($handle = opendir($path)) {
while (false !== ($file = readdir($handle)))
{
if ($file != "." && $file != "..") {
if (is_dir($path."/".$file))
{
file_list($path."/".$file);
}
else
{
if(strpos($file,'.png',1)||strpos($file,'.jpg',1)||strpos($file,'.ico',1)||strpos($file,'.gif',1))
{
echo ' <img height=\'100\' src="'.$path.'/'.$file.'" />';
}
}
}
}
}
}
?>
Android 代码：
package com.app.model;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Toast;
public class SubmitPhoto extends Activity
{
/* 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：服务器对应的程序路径 */
private String newName="";
private String uploadFile="";
private String actionUrl="http://dev.feiren.com/uploads/android/upload.php";
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
Intent intent = this.getIntent();
Bundle bundle = intent.getExtras();
newName = bundle.getString("fileName");
uploadFile=newName;
try {
String ok=post(actionUrl,newName);
Toast.makeText(this, "OK!",Toast.LENGTH_LONG).show();
finish();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/* 上传文件到Server的方法*/
/**
* @param actionUrl
* @param params
* @param files
* @return
* @throws IOException
*/
public static String post(String actionUrl,String FileName) throws IOException {
String BOUNDARY = java.util.UUID.randomUUID().toString();
String PREFIX = "--" , LINEND = "\r\n";
String MULTIPART_FROM_DATA = "multipart/form-data";
String CHARSET = "UTF-8";
URL uri = new URL(actionUrl);
HttpURLConnection conn = (HttpURLConnection) uri.openConnection();
conn.setReadTimeout(5 * 1000); // 缓存的最长时间
conn.setDoInput(true);// 允许输入
conn.setDoOutput(true);// 允许输出
conn.setUseCaches(false); // 不允许使用缓存
conn.setRequestMethod("POST");
conn.setRequestProperty("connection", "keep-alive");
conn.setRequestProperty("Charsert", "UTF-8");
conn.setRequestProperty("Content-Type", MULTIPART_FROM_DATA + ";boundary=" + BOUNDARY);
DataOutputStream outStream = new DataOutputStream(conn.getOutputStream());
// 发送文件数据
if(FileName!=""){
StringBuilder sb1 = new StringBuilder();
sb1.append(PREFIX);
sb1.append(BOUNDARY);
sb1.append(LINEND);
sb1.append("Content-Disposition: form-data; name=\"file1\"; filename=\""+FileName+"\""+LINEND);
sb1.append("Content-Type: application/octet-stream; charset="+CHARSET+LINEND);
sb1.append(LINEND);
outStream.write(sb1.toString().getBytes());
InputStream is = new FileInputStream(FileName);
byte[] buffer = new byte[1024];
int len = 0;
while ((len = is.read(buffer)) != -1) {
outStream.write(buffer, 0, len);
}
is.close();
outStream.write(LINEND.getBytes());
}
//请求结束标志
byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINEND).getBytes();
outStream.write(end_data);
outStream.flush();
//得到响应码
int res = conn.getResponseCode();
InputStream in = null;
if (res == 200) {
in = conn.getInputStream();
int ch;
StringBuilder sb2 = new StringBuilder();
while ((ch = in.read()) != -1) {
sb2.append((char) ch);
}
}
return in == null ? null : in.toString();
}
}
以上代码已经试验成功。这个代码可以实现很多有意思的应用，比如你在户外拍照，刚拍下来，你所有的朋友马上都可以在你的微薄或者空间里看到。
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