android通过http上传文件到web服务器端
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本文章介绍了一个关于android通过http来实现文件上传功能，在服务器端我们是用php来实现的，有需要的朋友可以参考一下
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(); }
}
?>
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.hzhuti.com/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();
}
} 该文章在 2013/2/25 12:48:32 编辑过 |
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