ConnectPool .java:
package pool;
/**
* Title: ConnectPool.Java
* Description: 连接池治理器
* Copyright: Copyright (c) 2002/12/25
* Company:
* Author :
* Version 2.0
*/
import java.io.*;
import java.sql.*;
import java.util.*;
import java.util.Date;
/**
* 治理类DBConnectionManager支持对一个或多个由属性文件定义的数据库连接
* 池的访问.客户程序可以调用getInstance()方法访问本类的唯一实例.
*/
public class ConnectPool {
static public ConnectPool instance; // 唯一实例
static public int clients;
public Vector drivers = new Vector(); //驱动
public PrintWriter log;
public Hashtable pools = new Hashtable(); //连接
/**
* 返回唯一实例.假如是第一次调用此方法,则创建实例
*
* @return DBConnectionManager 唯一实例
*/
static synchronized public ConnectPool getInstance() {
if (instance == null) {
instance = new ConnectPool();
}
clients++;
return instance;
}
/**
* 返回唯一实例.假如是第一次调用此方法,则创建实例
*
* @return DBConnectionManager 唯一实例
*/
static synchronized public ConnectPool getInstance(String url) {
if (instance == null) {
instance = new ConnectPool(url);
}
clients++;
return instance;
}
/**
* 建构函数私有以防止其它对象创建本类实例
*/
public ConnectPool() {
init();
}
/**
* 建构造带参数的函数
*
*/
public ConnectPool(String url) {
init(url);
}
/**
* 将连接对象返回给由名字指定的连接池
*
* @param name 在属性文件中定义的连接池名字
* @param con 连接对象
*/
public void freeConnection(String name, Connection con) {
DBConnectionPool pool = (DBConnectionPool) pools.get(name);
if (pool != null) {
pool.freeConnection(con);
} else {
// System.out.println("pool ==null");
}
clients--;
}
/**
* 获得一个可用的(空闲的)连接.假如没有可用连接,且已有连接数小于最大连接数
* 限制,则创建并返回新连接
*
* @param name 在属性文件中定义的连接池名字
* @return Connection 可用连接或null
*/
public Connection getConnection(String name) {
DBConnectionPool pool = (DBConnectionPool) pools.get(name);
if (pool != null) {
//return pool.getConnection();
return pool.returnConnection();
}
return null;
}
/**
* 获得一个可用连接.若没有可用连接,且已有连接数小于最大连接数限制,
* 则创建并返回新连接.否则,在指定的时间内等待其它线程释放连接.
*
* @param name 连接池名字
* @param time 以毫秒计的等待时间
* @return Connection 可用连接或null
*/
public Connection getConnection(String name, long time) {
DBConnectionPool pool = (DBConnectionPool) pools.get(name);
if (pool != null) {
return pool.getConnection(time);
}
return null;
}
/**
* 关闭所有连接,撤销驱动程序的注册
*/
public synchronized void release() {
// 等待直到最后一个客户程序调用
if (--clients != 0) {
return;
}
Enumeration allPools = pools.elements();
while (allPools.hasMoreElements()) {
DBConnectionPool pool = (DBConnectionPool) allPools.nextElement();
pool.release();
}
Enumeration allDrivers = drivers.elements();
while (allDrivers.hasMoreElements()) {
Driver driver = (Driver) allDrivers.nextElement();
try {
DriverManager.deregisterDriver(driver);
log("撤销JDBC驱动程序 " + driver.getClass().getName() + "的注册");
} catch (SQLException e) {
log(e, "无法撤销下列JDBC驱动程序的注册: " + driver.getClass().getName());
}
}
}
/**
* 根据指定属性创建连接池实例.
*
* @param props 连接池属性
*/
private void createPools(Properties props) {
Enumeration propNames = props.propertyNames();
while (propNames.hasMoreElements()) {
String name = (String) propNames.nextElement();
if (name.endsWith(".url")) {
String poolName = name.substring(0, name.lastIndexOf("."));
String url = props.getProperty(poolName + ".url");
if (url == null) {
log("没有为连接池" + poolName + "指定URL");
continue;
}
String user = props.getProperty(poolName + ".user");
String passWord = props.getProperty(poolName + ".password");
String maxconn = props.getProperty(poolName + ".maxconn", "0");
int max;
try {
max = Integer.valueOf(maxconn).intValue();
} catch (NumberFormatException e) {
log("错误的最大连接数限制: " + maxconn + " .连接池: " + poolName);
max = 0;
}
DBConnectionPool pool = new DBConnectionPool(poolName, url,
user, passWord, max);
pools.put(poolName, pool);
log("成功创建连接池" + poolName);
}
}
}
/**
* 读取属性完成初始化
*/
private void init() {
try {
Properties p = new Properties();
String configs = System.getProperty("user.dir") + "//conf//poolName.properties";
//String configs = System.getProperty("user.dir") + "//conf//poolName.properties";
//System.out.println("configs file local at " + configs);
FileInputStream is = new FileInputStream(configs);
Properties dbProps = new Properties();
try {
dbProps.load(is);
} catch (Exception e) {
System.err.println("不能读取属性文件. " +
"请确保db.properties在CLASSPATH指定的路径中");
return;
}
String logFile = dbProps.getProperty("logfile",
"DBConnectionManager.log");
try {
log = new PrintWriter(new FileWriter(logFile, true), true);
} catch (IOException e) {
System.err.println("无法打开日志文件: " + logFile);
log = new PrintWriter(System.err);
}
loadDrivers(dbProps);
createPools(dbProps);
} catch (Exception e) {}
}
/**
* 读取属性完成初始化
*/
private void init(String url) {
try {
Properties p = new Properties();
String configs = System.getProperty("user.dir") +
"//conf//"+url;
//System.out.println("configs file local at " + configs);
FileInputStream is = new FileInputStream(configs);
Properties dbProps = new Properties();
try {
dbProps.load(is);
} catch (Exception e) {
System.err.println("不能读取属性文件. " +
"请确保db.properties在CLASSPATH指定的路径中");
return;
}
String logFile = dbProps.getProperty("logfile",
"DBConnectionManager.log");
try {
log = new PrintWriter(new FileWriter(logFile, true), true);
} catch (IOException e) {
System.err.println("无法打开日志文件: " + logFile);
log = new PrintWriter(System.err);
}
loadDrivers(dbProps);
createPools(dbProps);
} catch (Exception e) {}
}
/**
171 * 装载和注册所有JDBC驱动程序
172 *
173 * @param props 属性
174 */
private void loadDrivers(Properties props) {
String driverClasses = props.getProperty("drivers");
StringTokenizer st = new StringTokenizer(driverClasses);
while (st.hasMoreElements()) {
String driverClassName = st.nextToken().trim();
try {
Driver driver = (Driver)
Class.forName(driverClassName).newInstance();
DriverManager.registerDriver(driver);
drivers.addElement(driver);
//System.out.println(driverClassName);
log("成功注册JDBC驱动程序" + driverClassName);
} catch (Exception e) {
log("无法注册JDBC驱动程序: " +
driverClassName + ", 错误: " + e);
}
}
}
/**
* 将文本信息写入日志文件
*/
private void log(String msg) {
log.println(new Date() + ": " + msg);
}
/**
* 将文本信息与异常写入日志文件
*/
private void log(Throwable e, String msg) {
log.println(new Date() + ": " + msg);
e.printStackTrace(log);
}
/**
* 此内部类定义了一个连接池.它能够根据要求创建新连接,直到预定的最
* 大连接数为止.在返回连接给客户程序之前,它能够验证连接的有效性.
*/
class DBConnectionPool {
//private int checkedOut;
private Vector freeConnections = new Vector();
private int maxConn;
private String name;
private String password;
private String URL;
private String user;
/**
* 创建新的连接池
*
* @param name 连接池名字
* @param URL 数据库的JDBC URL
* @param user 数据库帐号,或 null
* @param password 密码,或 null
* @param maxConn 此连接池答应建立的最大连接数
*/
public DBConnectionPool(String name, String URL, String user,
String password, int maxConn) {
this.name = name;
this.URL = URL;
this.user = user;
this.password = password;
this.maxConn = maxConn;
}
/**
* 将不再使用的连接返回给连接池
*
* @param con 客户程序释放的连接
*/
public synchronized void freeConnection(Connection con) {
// 将指定连接加入到向量末尾
try {
if (con.isClosed()) {
// System.out.println("before freeConnection con is closed");
}
freeConnections.addElement(con);
Connection contest = (Connection) freeConnections.lastElement();
if (contest.isClosed()) {
// System.out.println("after freeConnection contest is closed");
}
notifyAll();
} catch (SQLException e) {
// System.out.println(e);
}
}
/**
* 从连接池获得一个可用连接.如没有空闲的连接且当前连接数小于最大连接
* 数限制,则创建新连接.如原来登记为可用的连接不再有效,则从向量删除之,
* 然后递归调用自己以尝试新的可用连接.
*/
public synchronized Connection getConnection() {
Connection con = null;
if (freeConnections.size() > 0) {
// 获取向量中第一个可用连接
con = (Connection) freeConnections.firstElement();
freeConnections.removeElementAt(0);
try {
if (con.isClosed()) {
log("从连接池" + name + "删除一个无效连接");
System.out.println("从连接池" + name + "删除一个无效连接");
// 递归调用自己,尝试再次获取可用连接
con = getConnection();
}
} catch (SQLException e) {
log("从连接池" + name + "删除一个无效连接时错误");
System.out.println("从连接池" + name + "删除一个无效连接出错");
// 递归调用自己,尝试再次获取可用连接
con = getConnection();
}
if (freeConnections.size() > maxConn) {
System.out.println(" 删除一个溢出连接 ");
releaseOne();
}
} else if ((maxConn == 0) || (freeConnections.size() < maxConn)) {
con = newConnection();
}
return con;
}
public synchronized Connection returnConnection() {
Connection con = null;
//假如闲置小于最大连接,返回一个新连接
if (freeConnections.size() < maxConn) {
con = newConnection();
}
//假如闲置大于最大连接，返回一个可用的旧连接
else if (freeConnections.size() >= maxConn) {
con = (Connection) freeConnections.firstElement();
System.out.println(" [a 连接池可用连接数 ] : " + "[ " +
freeConnections.size() + " ]");
freeConnections.removeElementAt(0);
System.out.println(" [b 连接池可用连接数 ] : " + "[ " +
freeConnections.size() + " ]");
try {
if (con.isClosed()) {
log("从连接池" + name + "删除一个无效连接");
System.out.println("从连接池" + name + "删除一个无效连接");
returnConnection();
}
} catch (SQLException e) {
log("从连接池" + name + "删除一个无效连接时错误");
System.out.println("从连接池" + name + "删除一个无效连接出错");
returnConnection();
}
}
return con;
}
/**
* 从连接池获取可用连接.可以指定客户程序能够等待的最长时间
* 参见前一个getConnection()方法.
*
* @param timeout 以毫秒计的等待时间限制
*/
public synchronized Connection getConnection(long timeout) {
long startTime = new Date().getTime();
Connection con;
while ((con = getConnection()) == null) {
try {
wait(timeout);
} catch (InterruptedException e) {}
if ((new Date().getTime() - startTime) >= timeout) {
// wait()返回的原因是超时
return null;
}
}
return con;
}
/**
* 关闭所有连接
*/
public synchronized void release() {
Enumeration allConnections = freeConnections.elements();
while (allConnections.hasMoreElements()) {
Connection con = (Connection) allConnections.nextElement();
try {
con.close();
log("关闭连接池" + name + "中的一个连接");
} catch (SQLException e) {
log(e, "无法关闭连接池" + name + "中的连接");
}
}
freeConnections.removeAllElements();
}
/**
* 关闭一个连接
*/
public synchronized void releaseOne() {
if (freeConnections.firstElement() != null) {
Connection con = (Connection) freeConnections.firstElement();
try {
con.close();
System.out.println("关闭连接池" + name + "中的一个连接");
log("关闭连接池" + name + "中的一个连接");
} catch (SQLException e) {
System.out.println("无法关闭连接池" + name + "中的一个连接");
log(e, "无法关闭连接池" + name + "中的连接");
}
} else {
System.out.println(
"releaseOne() bug.......................................................");
}
}
/**
* 创建新的连接
*/
private Connection newConnection() {
Connection con = null;
try {
if (user == null) {
con = DriverManager.getConnection(URL);
} else {
con = DriverManager.getConnection(URL, user, password);
}
log("连接池" + name + "创建一个新的连接");
} catch (SQLException e) {
log(e, "无法创建下列URL的连接: " + URL);
return null;
}
return con;
}
}
}
-----------------------------------------------------------------------------------------------------------------
PoolMan.java:
package pool;
/**
* Title: ConnectPool.java
* Description: 数据库操作
* Copyright: Copyright (c) 2002/12/25
* Company:
* Author :
* remark : 加入指针回滚
* Version 2.0
*/
import java.io.*;
import pool.*;
import java.sql.*;
import java.util.*;
import java.util.Date;
import java.net.*;
public class PoolMan extends ConnectPool {
private ConnectPool connMgr;
private Statement stmt;
private Connection con;
private ResultSet rst;
/**
*对象连接初始化
* */
public Connection getPool(String name) throws Exception {
try {
connMgr = ConnectPool.getInstance();
con = connMgr.getConnection(name);
} catch (Exception e) {
System.err.println("不能创建连接!请尝试重启应用服务器");
}
return con;
}
/**
* 2008-10-14
*对象连接初始化
* */
public Connection getPool(String name,String url) throws Exception {
try {
connMgr = ConnectPool.getInstance(url);
con = connMgr.getConnection(name);
} catch (Exception e) {
System.err.println("不能创建连接!请尝试重启应用服务器");
}
return con;
}
/**
*同以上方法,加入连接空闲等待时间
*待用方法
* */
public Connection getPool_t(String name, long time) throws Exception {
try {
connMgr = ConnectPool.getInstance();
con = connMgr.getConnection(name, time);
} catch (Exception e) {
System.err.println("不能创建连接!");
}
return con;
}
/**
*执行查询方法1
* */
public ResultSet executeQuery(String SqlStr) throws Exception {
ResultSet result = null;
try {
stmt = con.createStatement();
result = stmt.executeQuery(SqlStr);
// here add one line by jnma 12.11
con.commit();
} catch (java.sql.SQLException e) {
throw new Exception("执行查询语句出错");
}
return result;
}
/**
*执行查询方法2
* */
public ResultSet getRst(String SqlStr) throws Exception {
// ResultSet result = null;
try {
stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,
ResultSet.CONCUR_UPDATABLE);
rst = stmt.executeQuery(SqlStr);
// here add one line by jnma 12.11
con.commit();
} catch (java.sql.SQLException e) {
throw new Exception("执行查询语句出错");
}
return rst;
}
/**
*执行更新
* */
public int Update(String SqlStr) throws Exception {
int result = -1;
try {
stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,
ResultSet.CONCUR_UPDATABLE);
result = stmt.executeUpdate(SqlStr);
// here add one line by jnma 12.11
con.commit();
if (result == 0) {
System.out.println("执行delete,update,insert SQL出错");
}
} catch (java.sql.SQLException e) {
System.err.println("执行delete,update,insert SQL出错");
}
return result;
}
/**
*执行事务处理
* */
public boolean handleTransaction(Vector SqlArray) throws Exception {
boolean result = false;
int ArraySize = SqlArray.size();
try {
stmt = con.createStatement();
con.setAutoCommit(false);
System.out.println("ArraySize is" + ArraySize);
for (int i = 0; i < ArraySize; i++) {
System.out.println(" 开始执行语句" + (String) SqlArray.elementAt(i));
stmt.executeUpdate((String) SqlArray.elementAt(i));
System.out.println(" 执行成功");
}
con.commit();
con.setAutoCommit(true); //必须
System.out.println("事务执行成功");
result = true;
} catch (java.sql.SQLException e) {
try {
System.out.println(e.toString());
System.out.println("数据库操作失败");
con.rollback();
} catch (java.sql.SQLException Te) {
System.err.println("事务出错回滚异常");
}
}
try {
con.setAutoCommit(true);
} catch (java.sql.SQLException e) {
System.err.println("设置自动提交失败");
}
return result;
}
/**
*释放连接
* */
public void close(String name) throws Exception {
try {
if (stmt != null) {
stmt.close();
}
if (con != null) {
connMgr.freeConnection(name, con);
System.out.println(" [c 正在释放一个连接 ] ");
}
} catch (java.sql.SQLException e) {
System.err.println("释放连接出错");
}
}
}
-----------------------------------------------------------------------------------------------------------
MyDB.java
package db;
import java.sql.*;
import pool.PoolMan;
import base.Constants;
import java.util.List;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import org.apache.commons.beanutils.DynaBean;
import org.apache.commons.beanutils.RowSetDynaClass;
import java.util.Vector;
import bean.Log;
import bean.AdminBean;
import base.FunctionStatic;
import forms.system.DeptForm;
import org.apache.commons.beanutils.BeanUtils;
/*
//数据层续承此类包
例如：public class Function extends MyDB {。。。。。。
注意：当调用数据层都必需关闭数据库
Function fun=new Function()
fun.Close
*/
public class MyDB {
public Connection conn = null;
public ResultSet rs = null;
public ResultSet rs1 = null;
public java.sql.PreparedStatement prepar = null;
public Statement stmt = null;
public boolean flag = false;
public java.sql.CallableStatement proc = null;
public int pagecount = 0;
public int pagedata = 0;
PoolMan PoolMan = new PoolMan();
public MyDB() {
//通过名称得到连接池
conn = PoolMan.getConnection(Constants.SYSTEM_DB_POOL_NAME);
//System.out.println("连接成功");
}
//关闭连接
public void Close() {
try {
if (rs != null) {
rs.close();
}
if (rs1 != null) {
rs1.close();
}
if (prepar != null) {
prepar.close();
}
if (proc != null) {
proc.close();
}
if (stmt != null) {
stmt.close();
}
if (conn != null) {
conn.close();
}
} catch (SQLException ex) {
ex.printStackTrace();
}
// System.out.println("关闭成功");
}
public int executeSql(String sql)throws DbAccessException{
int flag = 0;
try {
stmt = conn.createStatement();
flag = stmt.executeUpdate(sql);
// return flag;
} catch (Exception e) {
throw new DbAccessException("操作数据库出错");
}finally{
//return flag;
}
return flag;
}
//结果集的数据转存入List
public List setResultToList(ResultSet rs) {
List list = new ArrayList();
try {
ResultSetMetaData md = rs.getMetaData();
/*获取结果集的列数*/
int columnCount = md.getColumnCount();
while (rs.next()) {
HashMap map = new HashMap();
/*把每一行以(key,value)存入HashMap, 列名做为key,列值做为value */
for (int i = 1; i <= columnCount; ++i) {
String tempStr = rs.getString(i);
if (tempStr == null) {
tempStr = "";
}
map.put(md.getColumnName(i), tempStr);
}
/*把装有一行数据的HashMap存入list*/
list.add(map);
}
} catch (SQLException ex) {
ex.printStackTrace();
}
//System.out.println(list.size());
return list;
}
/*
结果集的数据转存入List 3hsjc
selectsql:查询的字段
wheresql:查询条件的组合语句
sortsql：排序的组合语句
PageSize：每页显示的条数
PageNum：当前条数
tableName：表名
keyName：表中的主键字段名
页面调查方法：
<%@page import="java.util.*"%>
List list = (List) request.getAttribute("list"); //得到类包里存的值
if (list!=null){
for (int i = 0; i < list.size(); i++) {
HashMap map = (HashMap) list.get(i);
System.out.println(map.get("id")); //字段名同库字段名
}
}
*/
public List getListByMap(String selectsql, String wheresql, String sortsql,
int PageSize, int PageNum, String tableName,
String keyName) { //获取 列表信息
List list = new ArrayList();
String sql = "";
try {
if ("".equals(selectsql)) {
selectsql = "*";
}
if ("".equals(tableName) || "".equals(keyName)) {
return null;
}
sql = "SELECT top " + PageSize + " " + selectsql + " FROM " +
tableName + " WHERE 1=1 " + wheresql +
" and " + keyName + " not in (select top " +
PageSize * (PageNum - 1) + " " + keyName + " from " +
tableName + " where 1=1 " + wheresql + sortsql + ")" +
sortsql + "";
System.out.println("sql = " + sql );
stmt = conn.createStatement();
rs = stmt.executeQuery(sql);
list = this.setResultToList(rs);
return list;
} catch (SQLException ex) {
ex.printStackTrace();
}
return null;
}
/*
结果集的数据转存入List 3hzyh
selectsql:查询的字段
wheresql:查询条件的组合语句
sortsql：排序的组合语句
PageSize：每页显示的条数
PageNum：当前条数
tableName：表名
keyName：表中的主键字段名
页面调查方法：
<%@page import="org.apache.struts.util.RequestUtils"%>
<%@page import="org.apache.commons.beanutils.*"%>
<%@page import="java.util.*"%>
Vector list = (Vector) request.getAttribute("list"); //得到类包里存的值
if (list!=null){
for (int i = 0; i < list.size(); i++) {
DynaBean info = (DynaBean) list.get(i);
System.out.println(BeanUtils.getSimpleProperty(info,"id")); //字段名全小写
}
}
*/
public Vector getList(String selectsql, String wheresql, String sortsql,
int PageSize, int PageNum, String tableName,
String keyName) { //获取 列表信息
Vector vector = new Vector();
String sql = "";
try {
if ("".equals(selectsql)) {
selectsql = "*";
}
if ("".equals(tableName) || "".equals(keyName)) {
return null;
}
sql = "SELECT top " + PageSize + " " + selectsql + " FROM " +
tableName + " WHERE 1=1 " + wheresql +
" and " + keyName + " not in (select top " +
PageSize * (PageNum - 1) + " " + keyName + " from " +
tableName + " where 1=1 " + wheresql + sortsql + ")" +
sortsql + "";
System.out.println(sql);
stmt = conn.createStatement();
rs = stmt.executeQuery(sql);
/*对查询结果集RS进行行集的转换*/
RowSetDynaClass rsdc = new RowSetDynaClass(rs);
/*把行集的每一行另存为LIST，以便存取操作*/
List rsDynaClass = rsdc.getRows();
Iterator itr = rsDynaClass.iterator();
int i = 0;
while (itr.hasNext()) {
i++;
/*对LIST的每一行数据，动态生成虚拟BEAN*/
DynaBean dBean = (DynaBean) itr.next();
vector.add(dBean);
}
return vector;
} catch (SQLException ex) {
ex.printStackTrace();
}
return null;
}
//======================================================================
//Created by linjunna 2009-08-13
//增加用户操作日志
/*
ActionCode:
1:登录系统
2:......
*/
public boolean InsertLog(Log log) {
String sql = "INSERT INTO SU_UserLog(userName,note,userAction,ActionCode,dateCreated) VALUES (?,?,?,?,getdate() )";
int flag=0;
try {
prepar = conn.prepareStatement(sql);
prepar.setString(1, log.getUserName());
prepar.setString(2, log.getNote());
prepar.setString(3, log.getUserAction());
prepar.setString(4, log.getActionCode());
flag = prepar.executeUpdate();
if (flag>1) return true;
} catch (Exception ex) {
}
return false;
}
/*
函数说明：获取表中某一字段的值
参数说明你个：field:要获取字段的名称；keyName:判断的条件；keyValue:判断的条件的值；tableName:数据库表名
返回值说明：String
*/
public String getFieldValue(String field,String keyName,String keyValue,String tableName) {
String result = "";
FunctionStatic fun = new FunctionStatic();
try {
String sql = " select "+field+" from "+tableName+" where "+keyName+" ='" + keyValue + "' ";
prepar = conn.prepareStatement(sql);
rs = prepar.executeQuery();
while (rs.next()){
result = fun.getNullString(rs.getString(field));
break;
}
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/*
函数描述：修改表的某一字段
*/
public int updateTableField(String TableName, String FieldName,String FieldValue, String PKID) {
int ret = 0;
String sql = "update ? set ? = ? where ID=?";
try {
prepar = conn.prepareStatement(sql);
prepar.setString(1, TableName);
prepar.setString(2, FieldName);
prepar.setString(3, FieldValue);
prepar.setString(4, PKID);
ret = prepar.executeUpdate(sql);
} catch (Exception e) {
e.printStackTrace();
}
return ret;
}
/*
函数说明：批量删除
参数说明：FieldName:表的字段名；FieldValues：字段值,以逗号分隔，形式如："h0001,h0002,h0003,..."
返回值：整数
*/
public int BatchDeleteByIds( String TableName, String FieldName,String FieldValues)
{
String[] strs=base.FunctionStatic.splitSkins(FieldValues,",");
int flag = strs.length;
try {
conn.setAutoCommit(false);
for (int i=0;i<strs.length;i++)
{
flag-= Delete(TableName,FieldName,strs[i]);
}
conn.commit();
} catch (Exception e) {
try {
conn.rollback();
} catch (SQLException ex) {
ex.printStackTrace();
}
e.printStackTrace();
}
if (flag==0)
return 1;
else
return 0;
}
/*
功能描述：根据表的主键id删除记录
参数：TableName为要删除记录的表名；tids为一个或多个主键id字符串，以逗号（,）隔开；AutoCommit为是否使用事务
author：曾令启
*/
public int Delete(String TableName, String WhereSQL,boolean AutoCommit) {
int flag = 0;
try {
String sql = "";
conn.setAutoCommit(AutoCommit);
sql = " delete from " + TableName + " where 1=1 " + WhereSQL + " ";
flag = executeSql(sql);
conn.commit();
} catch (Exception e) {
try {
conn.rollback();
} catch (SQLException ex) {
ex.printStackTrace();
}
e.printStackTrace();
}
return flag;
}
/**
* 获得用于数据交换的主键ID，使用的存储过程为生成通用主键ID的PR_MakeMax_TYPK
* @param @Bureau_id String 用户登录时选择的机构ID
* @param @lab_Id String 用户登录时选择的实验室ID
* @param @TableName String 表名
* @param @IDNewFormatOut String 输出的ID
* @return String 可以返回以下格式的ID："Bureau_id+lab_id+0000000001"
*/
public String getExchangePKID(String Bureau_id,String lab_Id,String TableName) {
String sql ="set nocount on begin declare @NewID varchar(50)"
+" set @NewID=NULL"
+" exec PR_MakeMax_TYPK N'', N'"+Bureau_id+"', N'"+lab_Id+"',N'"+TableName+"',@NewID out "
+" select @NewID end ";
String result ="";
try{
prepar = conn.prepareStatement(sql);
rs = prepar.executeQuery();
if (rs.next()) {
result = rs.getString(1);
}
}
catch(SQLException e){
e.printStackTrace();
}
return result;
}
public String getExchangePKID(AdminBean ab,String TableName) {
String result ="";
result=getExchangePKID(ab.getLoginBureaus(),ab.getLoginLab(),TableName);
return result;
}
//====================私有方法 start=============================================================================
/*
功能描述：根据表的主键id删除记录
参数：TableName为要删除记录的表名；FieldName为数据表字段名；FieldValue为数据库表字段值
返回值：int。成功返回1，失败返回0
*/
private int Delete(String TableName, String FieldName, String FieldValue) {
int flag = 0;
String where = " and " + FieldName + " ='" + FieldValue + "'";
flag = Delete(TableName, where);
return flag;
}
//用于批量删除
private int Delete(String TableName, String WhereSQL) {
int flag = 0;
try {
String sql = "";
sql = " delete from " + TableName + " where 1=1 " + WhereSQL + " ";
flag = executeSql(sql);
} catch (Exception e) {
e.printStackTrace();
}
return flag;
}
//====================私有方法 end=============================================================================
public String getListToJason(String sql) throws Exception {
StringBuffer jasonStr= new StringBuffer();
stmt = conn.createStatement();
rs = stmt.executeQuery(sql);
ResultSetMetaData rsmd = rs.getMetaData();
RowSetDynaClass rsdc = new RowSetDynaClass(rs);
List list = rsdc.getRows();
Iterator ite = list.iterator();
int resultCout = list.size();
jasonStr.append("{totalCount:"+String.valueOf(resultCout)).append(",data:[");
while(ite.hasNext()){
DynaBean dyna = (DynaBean)ite.next();
jasonStr.append("{");
for(int i=1;i<=rsmd.getColumnCount();i++){
if (i==rsmd.getColumnCount())
jasonStr.append( rsmd.getColumnName(i)).append(":/"").append(BeanUtils.getSimpleProperty(dyna,rsmd.getColumnName(i).toLowerCase())).append("/"");
else
jasonStr.append( rsmd.getColumnName(i)).append(":/"").append(BeanUtils.getSimpleProperty(dyna,rsmd.getColumnName(i).toLowerCase())).append("/",");
}
jasonStr.append("},");
}
String te = jasonStr.toString();
te = te.substring(0,te.length()-1)+"],success:true}";
return te;
}
public String getListToJason(String sql,int start,int limit) throws Exception {
StringBuffer jasonStr= new StringBuffer();
stmt = conn.createStatement();
rs = stmt.executeQuery(sql);
ResultSetMetaData rsmd = rs.getMetaData();
RowSetDynaClass rsdc = new RowSetDynaClass(rs);
List list = rsdc.getRows();
int resultCout = list.size();
list = list.subList(start,start+limit);
Iterator ite = list.iterator();
jasonStr.append("{totalCount:"+String.valueOf(resultCout)).append(",data:[");
while(ite.hasNext()){
DynaBean dyna = (DynaBean)ite.next();
jasonStr.append("{");
for(int i=1;i<=rsmd.getColumnCount();i++){
if (i==rsmd.getColumnCount())
jasonStr.append( rsmd.getColumnName(i)).append(":/"").append(BeanUtils.getSimpleProperty(dyna,rsmd.getColumnName(i).toLowerCase())).append("/"");
else
jasonStr.append( rsmd.getColumnName(i)).append(":/"").append(BeanUtils.getSimpleProperty(dyna,rsmd.getColumnName(i).toLowerCase())).append("/",");
}
jasonStr.append("},");
}
String te = jasonStr.toString();
te = te.substring(0,te.length()-1)+"],success:true}";
return te;
}
}
-----------------------------------------------------------------------------------------------------------------------------
connect.properties
drivers=net.sourceforge.jtds.jdbc.Driver
#drivers=com.microsoft.jdbc.sqlserver.SQLServerDriver
logfile=D://DBConnectPool-logfile.txt
poolName.maxconn=100
poolName.url=jdbc:jtds:sqlserver://localhost:1433;DatabaseName=my_DB;tds=8.0;lastupdatecount=true
#poolName.url=jdbc:jtds:sqlserver://localhost:1433;DatabaseName=my_db;tds=8.0;lastupdatecount=true
poolName.user=sa
poolName.password=
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