Android 上传图片到服务器（PHP）

<?php $target_path  = "/var/www/upload/";//接收文件目录  
    $target_path = $target_path.($_FILES[&#39;file&#39;][&#39;name&#39;]);
    $target_path = iconv("UTF-8","gb2312", $target_path);
	echo exec(&#39;whoami&#39;) ;
    if(move_uploaded_file($_FILES[&#39;file&#39;][&#39;tmp_name&#39;], $target_path)) {  
       echo "The file ".( $_FILES[&#39;file&#39;][&#39;name&#39;])." has been uploaded.";
    }else{  
       echo " --There was an error uploading the file, please try again! Error Code: ".$_FILES[&#39;file&#39;][&#39;error&#39;];
    }
?>

$target_path  = "/var/www/upload/";//接收文件目录  

这里的文件位置一定要写完整，一开始我服务器的基站是 /var/www/下的 所以当初写的是

$target_path  = "/upload/";结果发现是不行的。所以这里是第一个注意点。如果读者想用这份脚本只需要把这个路径改成你们的目的<span style="font-family: Arial, Helvetica, sans-serif;">路径。</span>

package com.example.uploadbyasynchttp;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.UnsupportedEncodingException;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

import com.loopj.android.http.AsyncHttpClient;
import com.loopj.android.http.AsyncHttpResponseHandler;
import com.loopj.android.http.RequestParams;

public class MainActivity extends Activity {

	
	private int userid = 1;
	private String username = "HelloWorld";
	@SuppressLint("SdCardPath") 
	private String filepath = "/mnt/sdcard/DCIM/Camera/IMG_20160612_103832.jpg";
	private String filepath1 = "/storage/emulated/0/DCIM/Camera/IMG_20160612_103832.jpg";
	private String uploadUrl = "http://120.55.67.135/test/upload.php";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        Button but_upload = (Button) findViewById(R.id.button_upload_id) ;
        
        but_upload.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View arg0) {
				// TODO Auto-generated method stub
				
				
				AsyncHttpClient client = new AsyncHttpClient();
		        RequestParams params = new RequestParams();
		        
		        //client.ENCODING_GZIP
		      
		        params.put("userid", userid);
		        params.put("username", username);
		      //添加文件
		        try {
		        	File f = new File(filepath1) ;
		        	if(f.exists()){
		        		Log.i("AsyncHttp", "Yes") ;
		        		params.put("file", f);
		        	}else{
		        		Log.i("AsyncHttp", "No") ;
		        	}
		        } catch (FileNotFoundException e) {
		            e.printStackTrace();
		        }
		         /*//////////////
		         * /把文件上传*/		        
		        client.post(uploadUrl, params, new AsyncHttpResponseHandler() {
		            @Override
		            public void onSuccess(int i, org.apache.http.Header[] headers, byte[] bytes) {
		                try {
		                    //获取返回内容
		                    String resp = new String(bytes, "utf-8");
		                     Log.i("AsyncHttp", resp) ;
		                    //在这里处理返回的内容，例如解析json什么的...
		                     
		                } catch (UnsupportedEncodingException e) {
		                    e.printStackTrace();
		                }
		            }
		            @Override
		            public void onFailure(int i, org.apache.http.Header[] headers, byte[] bytes, Throwable throwable) {
		                //在这里处理连接失败的处理...
		            }
		        });
			}
		}) ;
        
        
        
    }
    
}

想要使用上面的代码只需要该两处地方，第一：图片的路径位置 

 private String filepath = "/mnt/sdcard/DCIM/Camera/IMG_20160612_103832.jpg";

第二：你服务器放upload脚本文件 

 private String uploadUrl = "http://120.55.67.135/test/upload.php";

下面是我的路径位置。（因为/var/www/是基地/使用只需要写/test/upload.php和上面upload.php路径是不一样）

<relativelayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingbottom="@dimen/activity_vertical_margin" android:paddingleft="@dimen/activity_horizontal_margin" android:paddingright="@dimen/activity_horizontal_margin" android:paddingtop="@dimen/activity_vertical_margin" tools:c>

    <button android:id="@+id/button_upload_id" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="点击上传"></button>

</relativelayout>

注意权限：<uses-permission android:name="android.permission.INTERNET"></uses-permission>

<code>echo exec('whoami'); //获得执行该文件的用户名，从而修改图片文件夹的权限</code>

<code>chown www-data -R  /var/www//upload/</code>

<code>/var/www//upload/</code><span>是我存放图片的目标路径，-R代表递归的给这个目录下的文件夹修改所属用户。</span>

<code>chmod 775 -R  </code><span>/var/www/upload/</span>