[操作系统]Java如何连接到MySQL数据库的

0 2016-05-01 15:00:15

下载：mysql-connector-java-5.1.38.tar.gz

http://dev.mysql.com/downloads/connector/j/

tar zxvfmysql-connector-java-5.1.38.tar.gz

解压后

zhousp@ubuntu:~/Downloads$cd ./mysql-connector-java-5.1.38/

zhousp@ubuntu:~/Downloads/mysql-connector-java-5.1.38$ls

build.

CHANGES docs README src

zhousp@ubuntu:~/Downloads/mysql-connector-java-5.1.38$sudo cp mysql-connector-java-5.1.38-bin.jar /home/tomcat/lib

[sudo] password forzhousp:

Add External JARs

代码：

importjava.sql.*;

publicclassJDBCTest {

publicstaticvoidmain(String[] args){

//驱动程序名

Stringdriver= "com.mysql.jdbc.Driver";

//URL指向要访问的数据库名bookstore

Stringurl= "jdbc:mysql://127.0.0.1:3306/bookstore";

//MySQL配置时的用户名

Stringuser= "root";

//MySQL配置时的密码

Stringpassword= "password";

try{

//加载驱动程序

Class.forName(driver);

//连续数据库

Connectionconn= DriverManager.getConnection(url,user,password);

if(!conn.isClosed())

System.out.println("Succeededconnecting to the Database!");

//statement用来执行SQL语句

Statementstatement= conn.createStatement();

//要执行的SQL语句

Stringsql= "select* from books";

//结果集

ResultSetrs= statement.executeQuery(sql);

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

System.out.println("执行结果如下所示:");

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

System.out.println("ISBN"+ "\t"+ "author"+"\t"+ "bookname"+"\t"+ "bookname");

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

Stringname= null;

while(rs.next()){

//选择ISBN这列数据

name= rs.getString("ISBN");

//System.out.println(name);

//首先使用ISO-8859-1字符集将name解码为字节序列并将结果存储新的字节数组中。

//然后使用GB2312字符集解码指定的字节数组

name= newString(name.getBytes("ISO-8859-1"),"GB2312");

//输出结果

System.out.println(name+ "\t"+ rs.getString("author")+ "\t"+ rs.getString("bookname")+ "\t"+ "\t"+ rs.getString("price"));

}

rs.close();

conn.close();

}catch(ClassNotFoundExceptione){

System.out.println("Sorry,can`tfind the Driver!");

e.printStackTrace();

}catch(SQLExceptione){

e.printStackTrace();

}catch(Exceptione){

e.printStackTrace();

}

}

}

输出：

Succeededconnecting to the Database!

-----------------

执行结果如下所示:

-----------------------------------------------

ISBNauthor bookname bookname

-----------------------------------------------

123456zhouspjava23.40

234567zhouspC++34.60

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