java连接mysql数据库jar包怎么导入

java连接mysql数据库jar包导入：

1.将所有的jar包都是放到web工程lib目录下，mysql-connector-java-x.x-bin.jar也是一样，把该JAR包拷贝到lib目录下即可

2用jdbc直接链接mysql代码如下

public static void main(String[] args) throws SQLException {

DriverManager.registerDriver(new com.mysql.jdbc.Driver())

Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/day15", "root", "123456")

System.out.println(conn.getClass().getName())

Statement stmt = conn.createStatement()

ResultSet rs = stmt.executeQuery("select id,name,password,email,birthday from users")

while (rs.next()) {

System.out.println("-------------------------")

System.out.println(rs.getObject("id"))

System.out.println(rs.getObject("name"))

System.out.println(rs.getObject("password"))

System.out.println(rs.getObject("email"))

System.out.println(rs.getObject("birthday"))

}

rs.close()

stmt.close()

conn.close()

}

首先需要jar包 mysql-connector-java-3.1.13-bin.jar

代码：

Connection conn=null

String url = "jdbc:mysql://localhost:3306/本地数据库名字"

try {

Class.forName("com.mysql.jdbc.Driver")

} catch (ClassNotFoundException ex) {

System.out.println("数据库驱动加载失败")

}

try {

conn = DriverManager.getConnection(url, "用户名", "密码")

} catch (SQLException e) {

e.printStackTrace()

}

return conn

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