8.2. Examples of using spring annotations

XML based bean property configuration: the definition information of bean is separated from the implementation class of bean. Annotation based configuration: the definition information of bean is realized by annotation on the bean implementation class. That is to say, the annotation is equivalent to the configuration in XML, the same. 1, C ...

Posted on Sun, 03 May 2020 21:41:17 -0400 by chaotica

Spring IOC source reading - bean definition parserdelegate

The function of bean definition parserdelegate is to generate bean instances based on the parsed file results. Next, we will learn the process of converting bean tags into bean instances.Important: in this process, you can follow my comments on the source code tag step by step. You don't need to read all the source codes, so you should clear yo ...

Posted on Sun, 03 May 2020 18:00:04 -0400 by BigJohn

Decision tree 2 of machine learning practice

In the last blog, I wrote how to build decision tree by training data. In this section, let's verify the actual effect of the algorithm. All the codes in this section and the previous blog are in the file chosetree.py Test algorithm: use decision tree for classification First, declare that the inputTree here is mytree in the previous se ...

Posted on Sun, 03 May 2020 17:05:37 -0400 by peterg0123

On the problem of referencing system properties when Kotlin customizes View

In the past two days, when writing projects for combination and customization of frequently used components in a project, some properties are needed, such as text, textsize, textcolor, etc. because of the required properties, the system basically has them, so I want to steal a lazy person and use them directly, but it backfired and was not use ...

Posted on Sun, 03 May 2020 16:52:33 -0400 by isam4m

Three uses of js callback function

js callback function has the following three usages, 1. Direct callback 2. call callback 3. apply callback The callback function works properly, reduces code redundancy, enhances code readability, and makes code maintenance much easier. What do you want to use the callback function? When there are many places that need to call the same ...

Posted on Sun, 03 May 2020 08:57:56 -0400 by aeroswat

Whether the submitted and entered values of the form in HTML are empty

Article origin: http://blog.csdn.net/lvhuiyang/article/details/53192277 Default way to submit html <form action="/server_url" method="post" id="form"><!--Submission address--> <input type="text" name="username" class="username" placeholder="Please enter your user name!"> <input type="password" name="passwor ...

Posted on Sun, 03 May 2020 08:19:35 -0400 by scast

JavaScript time processing

Time processing in JavaScript Js get current date time and other operations var myDate = new Date(); myDate.getYear(); //Get current year (2 digits) myDate.getFullYear(); //Get the complete year (4 digits, 1970 -????) myDate.getMonth(); //Get the current month (0-11,0 for January) myDate.getDate(); //Get current da ...

Posted on Sun, 03 May 2020 03:05:46 -0400 by les4017

C ා copy the same attribute value of two objects through reflection

Preface In the process of writing programs, it is often encountered to assign the attribute value of one object to another. Generally, we assign the corresponding value of one attribute to another, but this is too complicated. When the attribute of a class changes, we need to modify the corresponding relationship. Based on this requirement, I w ...

Posted on Sun, 03 May 2020 01:58:04 -0400 by kender

ajax options configuration in bootstrap table

Ajax options configuration in bootstrap table 1. Several configurations of bootstrap table configuration { url:"", method:"post", contentType:"application/json",//Data encoding type sent to server queryParams:function(params)//When requesting server data, you can add additional parameters by overri ...

Posted on Sun, 03 May 2020 00:55:17 -0400 by S A N T A

SectionList nesting FlatList to implement Grid and FlatList

Directly on the code, when finding solutions to problems, you should first look at the official documents. Baidu's blog is really a hole, especially the one with a section list. There is a numColumns in the section list. I don't know where he stole the documents if there's nothing in the section list, but I've been stud ...

Posted on Sun, 03 May 2020 00:46:36 -0400 by toledojimenez