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。