嗨，我正在阅读 kafka 主题，我想处理从 kafka 收到的数据，例如标记化、过滤掉不必要的数据、删除停用词，最后我想写回另一个 Kafka 主题
// read from kafka
val readStream = existingSparkSession
.readStream
.format("kafka")
.option("kafka.bootstrap.servers", hostAddress)
.option("subscribe", "my.raw") // Always read from offset 0, for dev/testing purpose
.load()
val df = readStream.selectExpr("CAST(value AS STRING)" )
df.show(false)
val df_json = df.select(from_json(col("value"), mySchema.defineSchema()).alias("parsed_value"))
val df_text = df_json.withColumn("text", col("parsed_value.payload.Text"))
// perform some data processing actions such as tokenization etc and return cleanedDataframe as the final result
// write back to kafka
val writeStream = cleanedDataframe
.writeStream
.outputMode("append")
.format("kafka")
.option("kafka.bootstrap.servers", hostAddress) …我有一个ID和年龄如下的json数组
var arrayVal = [{id:"1", age: 20},{id:"2", age: 30},{id:"2", age: "20"},{id:"3", age: 20},{id:"5", age: 10}];
我想获得属于相同ID的年龄总和，如下所示
1 = 20
2 = 50
3 = 20
5 = 10
请找到下面的代码
$scope.TestFunc = function()
{
var tot = 0;
var arrayVal = [{id:"1", age: 20},{id:"2", age: 30},{id:"2", age: "20"},{id:"3", age: 20},{id:"5", age: 10}];
for(var i=0; i <arrayVal.length; i++ )
{
for(var j=1; j<arrayVal.length - i; j++ )
{
if(arrayVal[i].id == arrayVal[j].id)
{
tot = arrayVal[i].age.valueOf() + arrayVal[j].age.valueOf();
}
else{
tot = tot …我正在使用带有 angularjs 的 fullcalendar 来显示事件。目前月视图工作正常。但是用户界面中没有显示日按钮和星期按钮。在左侧和右侧只有今天，显示后退和下一个按钮。我无法弄清楚原因。请找到以下代码。
视图.html
<html>
<head>
<link rel="stylesheet" href="../fullcalendar-4.1.0/packages/core/main.css"></script>
<link rel="stylesheet" href="../fullcalendar-4.1.0/packages/daygrid/main.css"></script>
<link rel="stylesheet" href="../fullcalendar-4.1.0/packages/list/main.css"></script>
<link rel="stylesheet" href="../fullcalendar-4.1.0/packages/timegrid/main.css"></script>
<script type="text/javascript" src="../fullcalendar-4.1.0/packages/core/main.js"></script>
<script type="text/javascript" src="../fullcalendar-4.1.0/packages/daygrid/main.js"></script>
<script type="text/javascript" src="../fullcalendar-4.1.0/packages/timegrid/main.js"></script>
<script type="text/javascript" src="../fullcalendar-4.1.0/packages/list/main.js"></script>
</head>
<script>
$scope.event = {events: [{
title:'test1',
start: '2019-05-05 08:00',
end: '2019-05-10 08:00'
},
{
title:'test2',
start: '2019-05-05 12:00'
}]};
var calendarEl = document.getElementById('calendar');
var calendar = new FullCalendar.Calendar(calendarEl, {
events: $scope.event.events,
plugins: [ 'dayGrid','timeGrid','list' ],
header: {
left: 'prev,next today',
center: 'title',
right: …