我正在使用 Rails 3.2.22.4 和 ruby 2.2.4。我正在测试 send_file 功能。我在服务器日志中收到“文件已发送”,但我看不到它正在浏览器中下载。单击“保存”按钮将调用此操作。
def save_trunk_logs
device_id = params['device_id']
trunk_name = params['trunk_name'] ||= "test"
data =""
file = "#{trunk_name}.txt"
trunk_logs = TrunkStatusLog.select([:LogType, :LogMessage, :EpochLoggedAtTime]).where(DeviceID: device_id)
File.open(file, "w+") do |aFile|
aFile.write("Trunk Name : #{trunk_name}\n")
aFile.write("*"*100)
aFile.write("\n")
aFile.write("Time Stamp"+"\t"+"Log Message\n")
trunk_logs.each do |msg|
data =format_log_messages msg
aFile.write("#{data}\n")
end
end
send_file file, :type => 'text/plain; charset=UTF-8', :disposition => 'attachment'
end
此操作由 button_to click 事件调用。
$("input[value='Download']").on('click', function () {
$.ajax({
type: "POST",
url: "/dm/trunk_test_tools/save_trunk_logs?device_id="+selectedTrunkDeviceId+"&trunk_name="+selectedTrunkDeviceName,
}
})
});
每次我点击下载按钮都会拨打 2 次电话。服务器端日志粘贴在下面
Started POST "/X/Y/save_trunk_logs?device_id=9&trunk_name=SIP_1" for 10.198.2.208 at 2016-10-24 12:58:58 +0530
Processing by ABCController#save_trunk_logs as */*
Parameters: {"device_id"=>"9", "trunk_name"=>"SIP_1"}
Sent file SIP_1.txt (0.0ms)
Completed 200 OK in 98.0ms (ActiveRecord: 62.0ms)
Started POST "/X/Y/save_trunk_logs" for 10.198.2.208 at 2016-10-24 12:58:59 +0530
Processing by TrunkTestToolsController#save_trunk_logs as HTML
Parameters: {"authenticity_token"=>"3HSxduOUwccwo="}
sent file test.txt (0.0ms)
Completed 200 OK in 17.0ms (ActiveRecord: 3.0ms)
我不明白为什么要进行第二次通话以及从哪里进行。在第一个服务器调用中,它说文件已发送但未下载。在第二次调用中,文件被发送并下载。但这没有用。参数不正确。我没有将真实性令牌作为参数发送。(跳过实际数据查询。)
任何帮助将不胜感激。
提前致谢。