java 通过连接池来创建连接数据库
一.导入包
proxool-0.9.1.jar
proxool-cglib.jar
二.创建类
import java.sql.CallableStatement;import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class DBConnection {
private static String driverClass = "org.logicalcobwebs.proxool.ProxoolDriver";
/**
* 获取数据库连接ytcd,ytcd
*
* @return Connection
*/
public Connection getConnOne() {
Connection connOne = null;
try {
Class.forName(driverClass);
connOne = DriverManager.getConnection("proxool.connOne");
} catch (Exception e) {
e.printStackTrace();
}
return connOne;
}
/**
* 获取数据库连接
*
* @return Connection
*/
public Connection getConnTwo() {
Connection connTwo = null;
try {
Class.forName(driverClass);
connTwo = DriverManager.getConnection("proxool.connTwo");
} catch (Exception e) {
e.printStackTrace();
}
return connTwo;
}
/**
* 释放连接 Connection
*
* @param Connection
*/
public void CloseConn(Connection conn) {
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
/**
* 释放连接 CallableStatement
*
* @param CallableStatement
*/
public void CloseCallSta(CallableStatement cstmt) {
if (cstmt != null) {
try {
cstmt.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
/**
* 释放连接 PreparedStatement
*
* @param PreparedStatement
*/
public void ClosePrepSta(PreparedStatement pstmt) {
if (pstmt != null) {
try {
pstmt.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
/**
* 释放连接 ResultSet
*
* @param ResultSet
*/
public void CloseResuSet(ResultSet rs) {
if (rs != null) {
try {
rs.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
}
三.配置proxool.xml
四.web.xm 中配置
五.类中调用
。。。。