bboss持久层快速入门教程

bboss持久层快速入门教程，快速搭建bboss持久层的开发环境，并编写一个简单的实例，实例中涉及以下功能点：

1. 动态启动数据源（基于apache dbcp2连接池组件）

2. 做一个简单的增删改查操作例子

持久层环境搭建

首先搭建持久层demo开发环境，通过svn下载持久层eclipse开发工程：

https://github.com/bbossgroups/bestpractice/trunk/persistent 

下载完毕后导入eclipse即可：

 

启动一个名称叫test的oracle数据源：

SQLUtil.startPool("test",//数据源名称
                "oracle.jdbc.driver.OracleDriver",//oracle驱动
                "jdbc:oracle:thin:@(description=(address_list=(load_balance=off)(failover=on)"
                + "(address=(protocol=tcp)(host=192.168.1.226)(port=1521))(address=(protocol=tcp)(host=192.168.1.227)(port=1521)))"
                + "(connect_data=(service_name=PF1)(failover_mode=(type=select)(method=basic)(RETRIES=180)(DELAY=5))))",//oracle rac链接串
                "mdm","123456",//数据库账号和口令
                 "select 1 from dual" //数据库连接校验sql
                );//初始化数据源

 

数据源启动后，接下来就可以在test数据源上执行相关的操作：

List<String> data = SQLExecutor.queryListWithDBName(String.class,"test","select MODULE_ID from TB_MODULE_INFO where MODULE_URL like ?","%/CrmAccount/%");
        int aid  =SQLExecutor.queryObjectWithDBName(int.class, "test","select max(to_number(AUTH_ID)) from TB_MODULE_AUTH");
        aid ++;
        for(String mid:data)
        {
            SQLExecutor.insertWithDBName("test", "insert into TB_MODULE_AUTH(AUTH_ID,ADMIN_ID,MODULE_ID) values(?,'23',?)", aid+"",mid);
            aid = aid+1;
        }
         
        SQLExecutor.insertWithDBName("test", "insert into TB_MODULE_AUTH(AUTH_ID,ADMIN_ID,MODULE_ID) values(?,'23',?)", aid+"","11");
 

 

 

再看一个基于sqlite的数据库的判断表不存在并建表的示例：

//启动sqlite数据源gencode
        SQLUtil.startPool("gencode","org.sqlite.JDBC","jdbc:sqlite://"+dbpath,"root","root",
                 "select 1"              
                    );
        //判断数据源gencode中对于的表BBOSS_GENCODE是否存在，不存在则创建
        String exist = "select 1 from BBOSS_GENCODE";
         
        try {
            SQLExecutor.queryObjectWithDBName(int.class,"gencode", exist);
        } catch (Exception e) {
            String tsql = "create table BBOSS_GENCODE (ID string,TABLENAME string,DBNAME string,FIELDINFOS TEXT,AUTHOR string,"
                       + "COMPANY string,"
                       + "CREATETIME number(10),"
                       + "UPDATETIME number(10),"
                       + "CONTROLPARAMS TEXT,"
                       + "  PRIMARY KEY (ID))";
              
            try {
                SQLExecutor.updateWithDBName("gencode",tsql);
                  
            } catch (SQLException e1) {
                  
                e1.printStackTrace();
            }
        }

 

 

完整的测试用例请看工程中的CustomPoolTest.java文件。

 

备注：执行sqlite测试方法时，需要依赖sqlite驱动sqlite-jdbc-3.8.10.1.jar文件，下载地址：

https://github.com/bbossgroups/bboss-gencode/blob/master/WebRoot/WEB-INF/lib/sqlite-jdbc-3.8.10.1.jar?raw=true

下载后将这个sqlite-jdbc-3.8.10.1.jar包放入persistent 工程lib目录，并加入工程classpath即可。

持久层更多使用方法参考文档：

http://yin-bp.iteye.com/blog/2181720