为什么我无法获得org.h2.Driver？我用maven

Question

我遇到了关于连接到H2的问题

这是我的pom.xml:

<project>
    <modelVersion>4.0.0</modelVersion>
    <groupId>.</groupId>
    <artifactId>dbConnection</artifactId>
    <name>Db Connection</name>
    <packaging>war</packaging>
    <version>0.1</version>

    <dependencies>
        <dependency>
        <groupId>com.h2database</groupId>
        <artifactId>h2</artifactId>
        <version>1.3.176</version>
        </dependency>
    </dependencies>


</project>

这是我的主要代码

import java.sql.*;

public class DbConnection 
{
   static final String DB_URL = "jdbc:h2:tcp://localhost/~/test;AUTO_SERVER=TRUE";

   public static void main(String[] args) throws Exception
   {
        try
           { 
                Class.forName("org.h2.Driver");          
                Connection conn = DriverManager.getConnection(DB_URL,"sa","");  
                conn.close();
           }
       catch(ClassNotFoundException ex)
           {
                System.out.println( "ERROR: Class not found: " + ex.getMessage()); 
           }
    }
}

总是显示未找到的类:org.h2.Driver

Answer 1

您应该将范围设置为运行时,以便将h2驱动程序打包在war文件中:

<dependency>
    <groupId>com.h2database</groupId>
    <artifactId>h2</artifactId>
    <version>1.4.190</version>
    <scope>runtime</scope>
</dependency>

Answer 2

我遇到了与IntelliJ相同的问题,但是找不到它org.h2.Driver.我尝试了几种来自Web的解决方案,但在简单重启IntelliJ之后问题就解决了.

希望这有助于节省一些时间.

Answer 3

在这里找到答案删除运行时范围

<dependency>
        <groupId>com.h2database</groupId>
        <artifactId>h2</artifactId>
        #removed this -> <scope>test</scope> #
    </dependency>