用Microsoft SQL Server实现Hikaricp [英] implementing hikaricp with microsoft sql server

问题描述

我正在尝试找出在Microsoft SQL Server中使用hikaricp(JDBC连接池)的最佳方法.从我所见，建议使用DataSource选项(就像我所见过的大多数连接池一样).但是，根据我所看到的示例，我无法与sql server数据库正确建立连接-想知道是否有人可以将我的数据库信息插入到该示例中.

I am trying to figure out the best approach for using hikaricp (JDBC connection pool) with microsoft sql server. From what I saw, the DataSource option is recommended (as is the case for most connection pools I've seen). However, I was not able to form a connection correctly with the sql server database based on the examples I've seen - wondering if anyone has a working example to which I can plug my DB info into.

推荐答案

确保已执行以下步骤:

1. 如果使用Maven，请确保您的pom文件具有以下依赖性(如果使用JDK7/8):

1. If using maven, make sure that you have the following dependency in your pom file (if using JDK7/8):

<dependency>
    <groupId>com.zaxxer</groupId>
    <artifactId>HikariCP</artifactId>
    <version>2.0.1</version>
    <scope>compile</scope>
</dependency>

如果使用其他构建工具，请相应地更改资源URL(或者，如果没有其他选择，则可以从maven存储库下载jar文件).

If using another build tool, change the resource URL accordingly (or just download the jar file from the maven repository if there is no other option for you).

我相信您的pom文件中也需要sqljdbc4.jar文件(我可能对此要求有误，因此一旦我再次确认，我可能会更新该帖子)

I believe you need the sqljdbc4.jar file in your pom file as well (I could be wrong about this requirement so I may update the post once I reconfirm)

将以下内容与其他参考文献一起导入您的课堂:

Import the following in your class along with other references:

import com.zaxxer.hikari.HikariConfig;
import com.zaxxer.hikari.HikariDataSource;

添加以下最终属性(或直接从配置文件中加载它们):

Add the following final properties (or simply load them from config file):

 private final String url = "jdbc:sqlserver://";
 private final String serverName= "xxx.xxx.xxx.xxx";   
 private final int portNumber = 1433;
 private final String databaseName= "ACTUALDBNAME";    

 private final String userName = "ACTUALUSERNAME"; 
 private final String password = "ACTUALPASSWORD";

 private final String selectMethod = "cursor"; 

您可以像这样检索连接URL:

You can retrieve the connection URL like this:

 public String getConnectionUrl() {
      return url+this.serverName+":"+this.portNumber+";databaseName="+this.databaseName+";user="+this.userName+";password="+this.password+";selectMethod="+this.selectMethod+";";

}

然后，以下内容应为您提供获得连接所需的数据源:

Then, the following should give you the DataSource you need in order to get a connection:

 public DataSource getDataSource() {
      final HikariDataSource ds = new HikariDataSource(); 
      ds.setMaximumPoolSize(10);
      ds.setDataSourceClassName("com.microsoft.sqlserver.jdbc.SQLServerDataSource");
     // ds.addDataSourceProperty("serverName", this.serverName);
     //ds.addDataSourceProperty("databaseName", this.databaseName);
      ds.addDataSourceProperty("url", this.getConnectionUrl());
      ds.addDataSourceProperty("user", this.userName);
      ds.addDataSourceProperty("password", this.password);
      ds.setInitializationFailFast(true);
      ds.setPoolName("wmHikariCp");
      return ds;
   }

或

public DataSource getDataSource() {
     HikariConfig config = new HikariConfig();
     config.setMaximumPoolSize(10);
     config.setDataSourceClassName("com.microsoft.sqlserver.jdbc.SQLServerDataSource");
     config.addDataSourceProperty("serverName", this.serverName);
     config.addDataSourceProperty("port", this.portNumber);
     config.addDataSourceProperty("databaseName", this.databaseName);
     config.addDataSourceProperty("user", this.userName);
     config.addDataSourceProperty("password", this.password);

     return new HikariDataSource(config);  //pass in HikariConfig to HikariDataSource
}

首选方法是将HikariConfig传递给HikariDataSource构造函数.您也可以从属性文件加载配置.

The preferred route is to pass the HikariConfig to the HikariDataSource constructor. You can also load the config from a properties file.

然后从数据源获取连接:

Then get connection from the datasource:

Connection con = null;
con = ds.getConnection();  //where ds is the dataSource retrieved from step 5

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