A recent project is to connect with the Tanghan Plugin plug-in in Eclipse, how can I connect when I started, after downloading Microsoft SQL Server 2000 Driver For JDBC, there are three packages for msbase.jar, mssqlserver.jar, msuTil.jar Some tutorials say that these three packages are written into the classpath, but the TANGHAN even the database driver can only choose one, so this method is not. A possible way to extract the above three packages, and then merge the COM folder inside, the merge method can be covered in the form, that is, put the second and third COM files to the first COM In the same directory, the system will prompt to be overwritten, the option is, then use JAR to make this folder into the mssql.jar package in the command line, command to: Jar CVF Mssql.jar COM. The configuration is as follows: Under Database Access View, as shown in Figure 1, the drive is configured to: Drive Name: Microsoft MSSQL Server JDBC Driver Driver Package Name: C: /Dev/Mssql.jar / / For mssql.jar path Program Driver Class: com.microsoft.jdbc.sqlserver.sqlserverDriver Driver Prefix: JDBC: Microsoft: SQLServer: //127.0.0.1: 1433; DatabaseName = DatabaseName Database Configuration is: Database Connection Name: Test Drive Name: Microsoft MSSQL Server JDBC driver program driver class: com.microsoft.jdbc.sqlserver.sqlserverdriver database connection: JDBC: Microsoft: SQLServer: //127.0.0.1: 1433; DatabaseName = DatabaseName Username: sa Password: After matching 2 The red bridges in the circle are gone, connect, success, will be as shown in the figure, determine. As shown in Figure 3, it means that it has been connected to the database.