小编Loc*_*thy的帖子

我正在使用带有rails 3的ImageMagick-6.7.4并且还将paperclipgem 安装到我的应用程序中.我按照本指南进行安装imagemagick,它可以在我的终端上运行,但不适用于我的rails应用程序.我在development.rb中包含了identify命令的路径

Paperclip.options[:command_path]='/path-where-my-identify-got-installed/'

但它仍然给我一个错误

Command :: identify -format %wx%h'/var/folders/Cd/CdjXsnlyEPyFqs4pwH83T++++TI/-Tmp-/stream20120104-2402-5iizym-0.png[0]'[paperclip] An error was received while processing: #<Paperclip::CommandNotFoundError: Could not run the `identify` command. 
Please installImageMagick.>Command :: identify -format %wx%h '/var/folders/Cd/CdjXsnlyEPyFqs4pwH83T++++TI/-Tmp-/stream20120104-2402-5iizym-0.png[0]'[paperclip] An error was received while processing: #<Paperclip::CommandNotFoundError: Could not run the `identify` command. Please install ImageMagick.>SQL (0.1ms)  BEGIN

如何在android我的模型中使用ORMlite保存ArrayList如下

class Model{
    @DatabaseField
    public String type = "";

    @DatabaseField
    public String name = "";

    @DatabaseField
    public Date dateTime = null;

    @DatabaseField
    ArrayList<Item> items = null;
}

而Item类有

class Item{
     @DatabaseField
     String itemName;
     ...
}

我收到以下异常:

java.sql.SQLException: ORMLite can't store unknown class class
      java.util.ArrayList for field 'items'.   Serializable fields must specify
      dataType=DataType.SERIALIZABLE

但是当我指定我的领域为

@DatabaseField(dataType = DataType.SERIALIZABLE)
ArrayList<Item> items = null;

编译器给出了一个无法解析的字段错误请帮帮我.

我开发了一个应用程序,Enter当我按下代码成功运行后,我想运行一些代码Enter.我想要一种Enter在文本框值更改时自动按下的方法.

但作为事件,因为我有线程问题,所以如果我按Enter键盘它运行良好,但当我写行代码(sendkey.send("{Enter}"))它不会像我按下Enter我想要的键盘按下Enter运行方法"图像( )"

private void tbResponse_TextChanged(object sender, EventArgs e)
    {

        SendKeys.Send("{ENTER}");

    }

    private void tbResponse_KeyPress(object sender, KeyPressEventArgs e)
    {

        if (e.KeyChar == (char)13)
        {
            image();
        }
    }