小编use*_*221的帖子

我正在测试lib/pdf_helper.rb.所以我创建spec/lib目录.然后我pdf_helper_spec.rb在spec/lib目录中创建一个文件.因为我正在测试pdf文件夹应该在公共文件夹中,这是我的代码

require 'spec_helper'
require 'pdf_helper'

    describe "Pdfhelpers" do
        it "Should be in public folder" do
        file = File.new ("#{Rails.root}/public/pdf")
        if File.exist?(file) == 'true'
            puts "Success"
        else
            puts"failed"
        end


    end
  end

我对吗？？我是RSpec的新手.

pdfkit gem成功安装在我的机器上.然后我跑gem install wkhtmltopdf-binary,输出了

Successfully installed wkhtmltopdf-binary-0.9.9.1
1 gem installed
Installing ri documentation for wkhtmltopdf-binary-0.9.9.1...
unable to convert "\xC0" from ASCII-8BIT to UTF-8 for bin/wkhtmltopdf_linux_386, skipping
unable to convert "\xA3" from ASCII-8BIT to UTF-8 for bin/wkhtmltopdf_linux_x64, skipping
unable to convert "\xCE" from ASCII-8BIT to UTF-8 for bin/wkhtmltopdf_darwin_386, skipping
Installing RDoc documentation for wkhtmltopdf-binary-0.9.9.1...
unable to convert "\xC0" from ASCII-8BIT to UTF-8 for bin/wkhtmltopdf_linux_386, skipping
unable to convert "\xA3" from ASCII-8BIT to UTF-8 for bin/wkhtmltopdf_linux_x64, skipping
unable to convert …

我想制作我的日期格式Month-Date-Year.目前的格式是Year-Month-Date.我如何在PHP中执行此操作？

[

    {
        "description": "My home", 
        "name": "Sweet Home", 
        "point": {
            "lat": 22.890976, 
            "long": 90.459097
        }, 
        "type": 1,
        "cid": "5319197376176516414"
    }

这是我的json文件,用于解析信息.这是我解析名称和lng的代码.

BufferedReader jsonReader = new BufferedReader(new InputStreamReader(this.getResources().openRawResource(R.raw.map)));
        StringBuilder jsonBuilder = new StringBuilder();
        try {
            for (String line = null; (line = jsonReader.readLine()) != null;) {
                jsonBuilder.append(line).append("\n");
            }

            JSONTokener tokener = new JSONTokener(jsonBuilder.toString());
            JSONArray jsonArray = new JSONArray(tokener);

                JSONObject jsonObject = jsonArray.getJSONObject(0);

                String title = jsonObject.getString("name");
                String lhg = jsonObject.getJSONObject("point").getString("lng");
} catch (FileNotFoundException e) {
            Log.e("jsonFile", "file not found");
        } catch …