我在活动中有两个按钮，一个用于获取相机，另一个用于将图像上传到服务器。我在android中使用了齐射来执行此操作。它显示如下错误
E/AndroidRuntime: FATAL EXCEPTION: Thread-2147
java.lang.OutOfMemoryError
at java.lang.AbstractStringBuilder.enlargeBuffer(AbstractStringBuilder.java:94)
at java.lang.AbstractStringBuilder.append0(AbstractStringBuilder.java:132)
at java.lang.StringBuilder.append(StringBuilder.java:124)
at libcore.net.UriCodec.appendEncoded(UriCodec.java:119)
at libcore.net.UriCodec.encode(UriCodec.java:133)
at java.net.URLEncoder.encode(URLEncoder.java:57)
at com.android.volley.Request.encodeParameters(Request.java:450)
at com.android.volley.Request.getBody(Request.java:436)
at com.android.volley.toolbox.HurlStack.addBodyIfExists(HurlStack.java:260)
at com.android.volley.toolbox.HurlStack.setConnectionParametersForRequest(HurlStack.java:234)
at com.android.volley.toolbox.HurlStack.performRequest(HurlStack.java:107)
at com.android.volley.toolbox.BasicNetwork.performRequest(BasicNetwork.java:96)
at com.android.volley.NetworkDispatcher.run(NetworkDispatcher.java:112)
当我点击上传按钮。相机按钮工作正常。我的android如下：
Image.java
package com.login.sowmy.uspcar;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Base64;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;
import com.android.volley.AuthFailureError;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
public class Image extends AppCompatActivity {
Button btnimgupload, btncamera;
ImageView imgliccard;
private String encoded_string, cust_name;
private Bitmap bitmap;
private File file;
private Uri file_uri;
private static final int CAMERA_REQUEST = 1888;
SharedPreferences shared;
final String TAG = this.getClass().getName();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_image);
imgliccard = (ImageView) findViewById(R.id.imglic);
btncamera = (Button) findViewById(R.id.btncamera);
btnimgupload = (Button) findViewById(R.id.btnupload);
shared = getSharedPreferences("get", Context.MODE_PRIVATE);
cust_name = shared.getString("key", null);
btncamera.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
getFileUri();
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, file_uri);
startActivityForResult(cameraIntent, CAMERA_REQUEST);
}
});
btnimgupload.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
new Encode_image().execute();
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAMERA_REQUEST && resultCode == Activity.RESULT_OK) {
//Bitmap photo = (Bitmap) data.getExtras().get("data");
imgliccard.setImageURI(file_uri);
}
}
public void getFileUri() {
file = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) +
File.separator + cust_name + ".jpg");
file_uri = Uri.fromFile(file);
}
public class Encode_image extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... params) {
bitmap = BitmapFactory.decodeFile(file_uri.getPath());
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
byte[] array = stream.toByteArray();
encoded_string = Base64.encodeToString(array, 0);
System.out.print("Step 1" +encoded_string);
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
makeRequest();
}
}
private void makeRequest() {
RequestQueue requestQueue= Volley.newRequestQueue(this);
StringRequest request=new StringRequest(Request.Method.POST, "http://localhost/img_upload1.php", new Response.Listener<String>() {
@Override
public void onResponse(String response) {
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getApplicationContext(), "error",Toast.LENGTH_SHORT).show();
}
}){
@Override
protected Map<String, String> getParams() throws AuthFailureError {
HashMap<String,String> map=new HashMap<>();
map.put("encoded_string",encoded_string);
map.put("cust_name",cust_name);
return map;
}
};
requestQueue.add(request);
}
}
我的php文件如下
<?php
header('Content-type : bitmap; charset=utf-8');
if(isset($_POST["encoded_string"])) {
$encoded_string=$_POST["encoded_string"];
$cust_name=$_POST["cust_name"];
$decoded_string =base64_decode($encoded_string);
$path= 'android/'.$cust_name;
$file=fopen($path,'wb');
$is_written=fwrite($file,$decoded_string);
fclose($file);
if($is_written >0) {
require 'connect.php';
$query = "UPDATE cust_detail SET img_url=? WHERE cusname=? ";
$params=array($path,$cust_name);
$result = sqlsrv_query($conn,$query,$params);
if( $result === false) {
echo "Error in query preparation/execution.\n";
die( print_r( sqlsrv_errors(), true));
} else {
echo "success";
}
}
sqlsrv_close($conn);
}
?>
我在清单文件中添加了以下内容
<uses-feature
android:name="android.hardware.camera2"
android:required="true" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
我在build gradle中添加了如下所示的凌空
compile 'com.android.volley:volley:1.0.0'.
任何人都可以帮助我如何使用PHP脚本使用凌空上传图像？