But of course you need to callclose()at some point on the opened connection to return it to the connection pool. Another way is to let Play manage closing the connection for you: // access "default" databasedb.withConnection{conn=>// do whatever you need with the connection} ...
Note: You likely need to enclose the JDBC URL configuration value with double quotes, since ‘:’ is a reserved character in the configuration syntax.H2 database engine connection propertiesIn memory database:# Default database configuration using H2 database engine in an in-memory mode db....
This guide shows you how to use the Scala driver to perform a bulk write operation that makes multiple changes to your data in a single database call. Consider a situation that requires you to insert documents, update documents, and delete documents for the same task. If you use the indivi...
scala中"=>"的使用 1.场景一:定义函数表达式 2.场景二:函数传名调用(直接将未计算的表达式作为参数传入) Scala的解释器在解析函数参数(function arguments)时有两种方式: ①call-by-value: 先计算参数表达式的值,再应用到函数内部; ②call-by-name: 将未计算的参数表达式直接应用到函数内部。 在进入函数内部前,...
Welcome to Scala version @scalaVersion@ (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_27). Type in expressions to have them evaluated. Type :help for more information. scala> import com.typesafe.config._ import com.typesafe.config._ scala> ConfigFactory.parseString("a.b=12") res0: ...
To use the ZIO integration, add the following dependency: "com.augustnagro" %% "magnumzio" % "x.x.x" and import these utils in your code with: import com.augustnagro.magnum.magzio.* Motivation Historically, database clients on the JVM fall into three categories. Object Oriented Repositori...
valdatabase = mongoClient.getDatabase("sample_mflix") You can also create a client with your desired configurations by passing aMongoClientSettingsobject to aMongoClientobject. To instantiate aMongoClientSettingsobject, call thebuilder()method, then chain theapplyConnectionString()method and pass in...
setting files,选中Override 8. 选择maven配置文件(上一步Mavenhome 目录中conf里面) 9.在maven配置文件中如果设置了仓库jar的默认下载地址的话会自动设置...在本地安装了maven之后需要在IntelliJIDEA继承maven的设置1. 安装好maven,如果不会安装请参考这篇文章“maven安装和使用”,讲得很详细。 2. ...
automated marking script to them. In addition, the Scala assignments come with a reference implementation in form of a jar-file. This allows you to run any test cases on your own computer. For example you can call Scala on the command line with the option -cp ...
Scala Programming Projects是Mikael Valot Nicolas Jorand创作的计算机网络类小说,QQ阅读提供Scala Programming Projects部分章节免费在线阅读,此外还提供Scala Programming Projects全本在线阅读。