Spring使用JdbcTemplate操作数据库---使用RowCa

<? xml version="1.0" encoding="UTF-8" ?>
<! DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd"  >
< beans >
  < bean  id ="dataSource"  class ="org.apache.commons.dbcp.BasicDataSource" >
    < property  name ="driverClassName" >
      < value > com.mysql.jdbc.Driver </ value >
    </ property >
    < property  name ="url" >
      < value > jdbc:mysql://localhost:3306/javaee </ value >
    </ property >
    < property  name ="username" >
      < value > root </ value >
    </ property >
    < property  name ="password" >
      < value > 1234 </ value >
    </ property >
  </ bean >
  < bean  id ="jdbcTemplate"  class ="org.springframework.jdbc.core.JdbcTemplate" >
    < property  name ="dataSource" >
      < ref  local ="dataSource" />
    </ property >
  </ bean >

< bean  id ="personDAO"  class ="SpringJDBCSupport.ReadData.PersonDAO" >
   < property  name ="jdbcTemplate" >
     < ref  local ="jdbcTemplate" />
   </ property >
</ bean >  
</ beans >

package  SpringJDBCSupport.ReadData;
import  com.mysql.jdbc.Driver;
public   class  Person  ... {
   private  String name;
   private  String password;
   private  String address;
   public  Person() ... {
      
  }
   public  Person(String name,String password,String address) ... {
       this .name = name;
       this .password = password;
       this .address = address;
  }
public  String getAddress()  ... {
     return  address;
}
public   void  setAddress(String address)  ... {
     this .address  =  address;
}
public  String getName()  ... {
     return  name;
}
public   void  setName(String name)  ... {
     this .name  =  name;
}
public  String getPassword()  ... {
     return  password;
}
public   void  setPassword(String password)  ... {
     this .password  =  password;
}
public  String toString() ... {
     return   this .getName() + " - " + this .getPassword() + " - " + this .getAddress();
}
}

package  SpringJDBCSupport.ReadData;

import  java.sql.PreparedStatement;
import  java.sql.ResultSet;
import  java.sql.SQLException;
import  java.sql.Types;
import  java.util.List;

import  org.springframework.jdbc.core.BatchPreparedStatementSetter;
import  org.springframework.jdbc.core.JdbcTemplate;
import  org.springframework.jdbc.core.RowCallbackHandler;

public   class  PersonDAO  ... {
   private  JdbcTemplate jdbcTemplate;

public  JdbcTemplate getJdbcTemplate()  ... {
     return  jdbcTemplate;
}

public   void  setJdbcTemplate(JdbcTemplate jdbcTemplate)  ... {
     this .jdbcTemplate  =  jdbcTemplate;
}

public   int  insertPersonUseUpdate(Person person) ... {
    String sql = " insert into login values(?,?,?) " ;
    Object[] params = new  Object[] ... {
            person.getName(),
            person.getPassword(),
            person.getAddress()
    } ;
     return   this .getJdbcTemplate().update(sql,params);
}
public   int  insertPersonUseExecute(Person person) ... {
    String sql = " insert into login values(?,?,?) " ;
    Object[] params = new  Object[] ... {
            person.getName(),
            person.getPassword(),
            person.getAddress()
    } ;
     int [] types = new   int [] ... {
            Types.VARCHAR,
            Types.VARCHAR,
            Types.VARCHAR
    } ;
     return   this .getJdbcTemplate().update(sql,params,types);
}
public   int [] updatePersonUseBatchUpdate(  final  List persons) ... {
    String sql = " insert into login values(?,?,?) " ;
    BatchPreparedStatementSetter setter = null ;
    setter = new  BatchPreparedStatementSetter() ... {
         public   int  getBatchSize() ... {
             return  persons.size();
        }
         public   void  setValues(PreparedStatement ps, int  index)  throws  SQLException ... {
            Person person = (Person)persons.get(index);
            ps.setString( 1 ,person.getName());
            ps.setString( 2 ,person.getPassword());
            ps.setString( 3 ,person.getAddress());
        }
    } ;
     return   this .getJdbcTemplate().batchUpdate(sql,setter);
}

public  Person getPersonByRowCallbackHandler(String username) ... {

    String sql = " select * from login where username=? " ;
     final  Person person = new  Person();
     final  Object params[] = new  Object[] ... {username} ;
     this .getJdbcTemplate().query(sql,params, new  RowCallbackHandler() ... {
         public   void  processRow(ResultSet rs) throws  SQLException ... {
            person.setName(rs.getString( " username " ));
            p