loadprop.java

JSP新闻发布系统 JSP新闻发布系统

package net.ijsp.news.database;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: ijsp.net</p>
 * @author ccjsmile
 * @version 1.0
 */

import java.io.*;
import java.sql.*;
import java.util.*;
import java.util.Date;

public class LoadProp {

private	String driver,url,user,password,logfile;
private	int minconn=0,maxconn=0,debug=0;
private	String poolName;
private	int maxconntime=0;
private String indexPath;

private static LoadProp prop;

private static Object lock = new Object();

public LoadProp() {}

public static void main(String[] args) {
LoadProp lp = new LoadProp();
lp.prop();
}
/**
* 获取基本配置
*/
public LoadProp prop() {
        System.out.println("读取配置文件信息");
        if (prop == null) {
       synchronized (lock) {
         if (prop == null)
              prop = init1();
         }
    }
        return  prop;
}

/**
* 清除静态信息
*/
public void reSet() {
        this.prop = null;
}

/**
* 设置基本信息
*/
public void setDriver(String driver) {
        this.driver = driver;
}
public void setUrl(String url) {
        this.url = url;
}
public void setUser(String user) {
        this.user = user;
}
public void setPassword(String password) {
        this.password = password;
}
public void setLogfile(String logfile) {
        this.logfile = logfile;
}
public void setMinconn(int minconn) {
        this.minconn = minconn;
}
public void setMaxconn(int maxconn) {
        this.maxconn = maxconn;
}
public void setDebug(int debug) {
        this.debug = debug;
}
public void setMaxconntime(int maxconntime) {
        this.maxconntime = maxconntime;
}

public String getDriver() {
        return driver;
}
public String getUrl() {
        return url;
}
public String getUser() {
        return user;
}
public String getPassword() {
        return password;
}
public String getLogfile() {
        return logfile;
}
public int getMinconn() {
        return minconn;
}
public int getMaxconn() {
        return maxconn;
}

public int getDebug() {
        return debug;
}
public int getMaxconntime() {
        return maxconntime;
}
/**
* 索引文件地址
*/
public void setIndexPath(String indexPath) {
        this.indexPath = indexPath;
}
public String getIndexPath() {
        return indexPath;
}


/**
* 获取基本配置信息
*/
private synchronized LoadProp init1() {
        if(prop==null) {
                LoadProp lp = new LoadProp();
                /**
                * 打开配置信息文件
                */
                InputStream is = getClass().getResourceAsStream("/downloaddb.txt");
                Properties props = new Properties();
                try {
                    props.load(is);
                }catch (Exception e) {
                    System.err.println("不能读取属性文件. 请确保downloaddb.txt在classes指定的路径中");
                }

                Enumeration propNames = props.propertyNames();
                while (propNames.hasMoreElements()) {
                        String name = (String) propNames.nextElement();
                        if (name.endsWith(".driver")) {
                                poolName = name.substring(0, name.lastIndexOf("."));
                                lp.setDriver(props.getProperty(poolName + ".driver"));
                                lp.setUrl(props.getProperty(poolName + ".url"));
                                lp.setUser(props.getProperty(poolName + ".user"));
                                lp.setPassword(props.getProperty(poolName + ".password"));
                                lp.setLogfile(props.getProperty(poolName + ".logfile"));
                                lp.setMinconn(Integer.parseInt(props.getProperty(poolName + ".minconn")));
                                lp.setMaxconn(Integer.parseInt(props.getProperty(poolName + ".maxconn")));
                                lp.setMaxconntime(Integer.parseInt(props.getProperty(poolName + ".maxconntime")));
                                lp.setDebug(Integer.parseInt(props.getProperty(poolName + ".debug")));
                }
                lp.setIndexPath(props.getProperty("index.path"));
        }
                return lp;
        }else{
                return prop;
        }
}

}