jdbc连接mysql5.7_JDBC连接MySQL5.7的方法

1.首先准备mysql 和eclipse环境，在环境搭建好之后，从eclipse官网下载jdbc的驱动包，下载地址http://dev.mysql.com/downloads/connector/j/

2.从下载的文件中取出mysql-connector-java-5.1.31-bin.jar，放到工程中，并导入路径

方法：右击工程名->Build Path->Configure Build Path,选择Add External JAR… 找到mysql-connector-java-5.1.31-bin.jar所在的位置，然后将驱动包加载到项目中，

3.写个例子测试一下

package testmysql;

import java.sql.*;

public class Test {

public static void main(String[] args) {

String driver = “com.mysql.jdbc.Driver”;

String URL = “jdbc:mysql://localhost:3306/student”;

Connection con = null;

try

{

Class.forName(driver);

}

catch(java.lang.ClassNotFoundException e)

{

System.out.println(“Connect Successfull.”);

System.out.println(“Cant’t load Driver”);

}

try

{

con=DriverManager.getConnection(URL,”root”,”root”);

System.out.println(“Connect Successfull.”);

}

catch(Exception e)

{

System.out.println(“Connect fail:” + e.getMessage());

}

}

}

连接上数据库之后，可以根据表中的内容进行数据库表的查询，首先表中要有内容，将一些信息输入到表中之后即可使用SQL语言进行查询

import java.sql.*;

public class Main {

public static void main(String[] args) {

String driver = “com.mysql.jdbc.Driver”;

String URL = “jdbc:mysql://localhost:3306/xiaolu”;

Connection con = null;

ResultSet rs = null;

Statement st = null;

String sql = “select * from student”;

try

{

Class.forName(driver);

}

catch(java.lang.ClassNotFoundException e)

{

// System.out.println(“Connect Successfull.”);

System.out.println(“Cant’t load Driver”);

}

try

{

con=DriverManager.getConnection(URL,”root”,”root”);

st=con.createStatement();

rs=st.executeQuery(sql);

if(rs!=null) {

ResultSetMetaData rsmd = rs.getMetaData();

int countcols = rsmd.getColumnCount();

for(int i=1;i<=countcols;i++) {

if(i>1) System.out.print(“;”);

System.out.print(rsmd.getColumnName(i)+” “);

}

System.out.println(“”);

while(rs.next()) {

System.out.print(rs.getString(“sno”)+” “);

System.out.print(rs.getString(“sname”)+” “);

System.out.print(rs.getString(“ssex”)+” “);

System.out.print(rs.getString(“sage”)+” “);

System.out.println(rs.getString(“sdept”)+” “);

}

}

//System.out.println(“Connect Successfull.”);

System.out.println(“ok”);

rs.close();

st.close();

con.close();

}

catch(Exception e)

{

System.out.println(“Connect fail:” + e.getMessage());

}

}

}

关于JDBC连接MySQL5.7的文章就介绍到这，其他的可以查下脚本之家其它相关文章。