as2 connection

DruidDataSource connection pool configuration, druiddatasource connection Data source connection pool Configuration The maximum number of database connections in the connection pool. If it is set to 0, there is no limit. You can set maxActive to a possible concurrency.Initialization sizeMaximum number of waits in mil

Use jar Packs: Commons-dbcp-1.4.jar, Commons-pool-1.6.jar, Commons-logging-1.1.3.jar, plus JDBC driver for the database, for JAVA6 and above platforms Connection Pooling Management class Copy Code code as follows: Package cn.songxinqiang.samples.commonsdbcp.util; Import java.sql.Connection;Import Java.sql.DatabaseMetaData;Import java.sql.SQLException;Import java.util.Properties; Import Javax.sql.DataSource; Import Org.apache.common

connection pool (not the C3P0 connection pool used here) to get the database connection, so the connection pool must be constructed first. Here are four actions: Add and delete and check @Test public Void Add () { //because JdbcTemplate is dependent on the database

　　Recently, when learning ADO, the data access method was mentioned: connection oriented and non-connection oriented. So, Baidu a bit, found that there is no good information, however, in the school library found a good book ("ASP. NET MVC5 Web site development of the United States", of course, I am not advertising, only because it is really OK), the difference between the two and the principle of speaking

RedisPHP connection and redisphp connection. RedisPHP connection operations, redisphp connection installation to use Redis in the PHP program, the first need to ensure that the Redis PHP driver and PHP installation settings on the machine. You can view the PHP Tutorial to teach Redis PHP

The connection object is used to establish a connection channel with the data source. First, let's look at an instance: Using system;Using system. Data;Using system. Data. sqlclient;// SQL Server Data SourceProgram Namespace consoleapplication1{Class Program{Static void main (string [] ARGs){String connectionstring = getconnectionstring ();String querystring = "select * From DBO. t_student ;"; // Crea

TCP persistent connection and short connectionTCP/IP communicationProgramDiversity of Designs) People who are new to TCP/IP communication design can quickly compile a communication program based on the example.According to this, some people may think that TCP/IP programming is very simple. Otherwise,TCP/IP programming has rich content. The richness of programming is mainly reflected inThe diversity of communication methods and message formats.

The template jndi.cpt, made from the oracle9i data source, is an example of how WebSphere configuration Jndi connections are configured in Finereport. Because the Jndi driver of the common server is too large, the sail soft report Finereport is not brought in, so you can take the following method to use the Jndi connection in the server. Principle: First connect to the database with JDBC, establish a database conn