android通过http上传文件到web服务器端

<?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();   } 

}

?>

Android 代码：

package com.nbcio.baishicha.test;
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 test 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://www.111cn.net/index.php";//这里定义你的上传路径 

@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 = "rn";

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();

}

}