sping配置重写思路_用户密码加密解密（JAVA和C#加密解密同步）

以下是配置myecliprice8.5、mysql5.5、tomcat6.0环境中进行，其他环境没有进行测试

1、加载sping配置信息的时候，增加记录config路劲：
System.setProperty(CommonContantsKey.DB_CONFIG_FILE, event.getServletContext()
            .getRealPath("/WEB-INF/config/dbConfig.properties"));
   并增加记录路径的key
public class CommonContantsKey
{
     public static String DB_CONFIG_FILE = "db_config_file";
}

2、在config下面增加dbConfig.properties资源文件，文件内容是：
dataSourceName=bbbDataSource
driverClass=driverClass
jdbcUrl=jdbc:mysql://127.0.0.1:3306/bbb?useUnicode=true&characterEncoding=utf-8&rewriteBatchedStatements=true
user=root
password=密文
initialPoolSize=1
minPoolSize=1
maxPoolSize=90
maxIdleTime=30
idleConnectionTestPeriod=15
maxStatements=0
checkoutTimeout=10000

3、修改sping配置，让ComboPooledDataSource重写，如下：
<bean id="dataSource" class="com.huawei.gts.impl.util.DataSourceFactory"  factory-method="getDataSourceFactory"/>

4、重写ComboPooledDataSource的方法：
package com.aaa.bbb.impl.util;

import java.io.FileInputStream;
import java.util.Properties;

import javax.sql.DataSource;

import com.aaa.bbb.impl.util.des.DESjc;
import com.mchange.v2.c3p0.ComboPooledDataSource;

public class DataSourceFactory
{
     public DataSourceFactory()
     {
     }

     public static DataSource getDataSourceFactory()
     {
         ComboPooledDataSource dataSource = new ComboPooledDataSource();
         try
         {
             Properties pro = new Properties();
             pro.load(new FileInputStream(System.getProperty(CommonContantsKey.DB_CONFIG_FILE)));
            
             String strPassword = pro.getProperty("password");
             strPassword = DESjc.decryptDES(strPassword);
            
             dataSource.setDataSourceName(pro.getProperty("dataSourceName"));
             dataSource.setDriverClass(pro.getProperty("driverClass"));
             dataSource.setJdbcUrl(pro.getProperty("jdbcUrl"));
             dataSource.setUser(pro.getProperty("user"));