小编use*_*772的帖子

这是我的代码,我正在尝试打开图库..我收到错误,如上所述

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.util.Base64;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.widget.ImageView;
import java.io.ByteArrayOutputStream;

public class ChangeUserImageActivity extends Activity {

private static final int SELECT_PICTURE = 1;

private static final int CAMERA_PIC_REQUEST = 1337;
private Bitmap thumbnail = null;
String img = "";

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.changeuserimage);
}

public void camera_click(View view) {
    Intent cameraIntent = new Intent(
            android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
    startActivityForResult(cameraIntent, CAMERA_PIC_REQUEST);
}

public void gallery_click(View v) {
    // select …

我正在使用python 3并且我有这个代码,试图让base64离开流并返回json - 但不能正常工作.

       stream = BytesIO()
       img.save(stream,format='png')
       return base64.b64encode(stream.getvalue())

在我看来,我有:

hm =mymap()
    strHM = hm.generate(data)
return HttpResponse(json.dumps({"img": strHM}),content_type="application/json"  )

获取错误不是JSON可序列化的.base64.b64encode(stream.getvalue())似乎给出了字节

我使用Apache网站的安装程序将Tomcat作为服务安装.我的bin文件夹中没有catalina.bat.如何设置permgem内存大小？是否有任何建议的尺寸？

我正在使用mod_wsgi在针对Python 3.4的虚拟环境中运行Django.我有numpy 1.9,我收到此错误:

**Request Method:   GET
Django Version: 1.7.1
Exception Type: ImportError
Exception Value:    
cannot import name multiarray
Exception Location: /var/www/mapsite/lib/python3.4/site-packages/numpy/core/__init__.py in <module>, line 6
Python Executable:  /usr/bin/python
Python Version: 2.7.5
Python Path:    
['/var/www/mapsite/lib/python3.4/site-packages',
 '/usr/lib/python2.7',
 '/usr/lib/python2.7/plat-x86_64-linux-gnu',
 '/usr/lib/python2.7/lib-tk',
 '/usr/lib/python2.7/lib-old',
 '/usr/lib/python2.7/lib-dynload',
 '/usr/local/lib/python2.7/dist-packages',
 '/usr/lib/python2.7/dist-packages',
 '/usr/lib/python2.7/dist-packages/PILcompat',
 '/usr/lib/python2.7/dist-packages/gtk-2.0',
 '/usr/lib/pymodules/python2.7',
 '/usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode',
 '/var/www/mysite']
Server time:    Wed, 3 Dec 2014 09:07:24 +0000**

Plesae建议

如何重新排序列表说:

['apple', 'banana', 'orange']

如果用户选择banana,则列表变为

['banana', 'apple', 'orange']

我在grails中有一个域类...如何在创建数据库时让gorm省略这个实体？别管它.

我在bin中使用启动命令启动tomcat.如何记录println到stdout并将错误记录到stderr而不是console？哪个文件要修改以及如何修改？我正在使用Windows Server 2008.

我有以下文字: ARIYALUR:ARIYALUR|CHENNAI:CHENNAI|COIMBATORE:COIMBATORE|CUDDALORE:CUDDALORE|DINDIGUL:DINDIGUL|ERODE:ERODE|KANCHEEPURAM:KANCHEEPURAM|KANYAKUMARI:KANYAKUMARI|KRISHNAGIRI:KRISHNAGIRI|MADURAI:MADURAI|NAMAKKAL:NAMAKKAL|NILGIRIS:NILGIRIS|PERAMBALUR:PERAMBALUR|PONDICHERRY:PONDICHERRY|SALEM:SALEM|THANJAVUR:THANJAVUR|THENI:THENI|THIRUVALLUR:THIRUVALLUR|THOOTHUKUDI:THOOTHUKUDI|TIRUNELVELI:TIRUNELVELI|VELLORE:VELLORE|VILLUPURAM:VILLUPURAM|VIRUDHUNAGAR:VIRUDHUNAGAR|

我试图做一个,split("|")但我的数组是由单个字符组成,而不是每个区.

如何在Grails中安装和使用httpbuilder插件？

我的控制器中有以下代码.如何访问每个索引？

def arr = ['a', 'b', 'c']

arr.each
{
// 'it' is the element
println it
}