Use-LobHandler-To-Handle-Large-Chunk-of-Data


            File: context.xml

       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:util="http://www.springframework.org/schema/util"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:lang="http://www.springframework.org/schema/lang"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
                           http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-2.0.xsd
                           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd
                           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
                           http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-2.0.xsd">

    
    
    
    
    
    

    
        
    
    
    
        
    

File: Main.java
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.sql.DataSource;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.support.lob.LobHandler;
class Main {
  public static void main(String args[]) throws Exception {
    ApplicationContext ac = new ClassPathXmlApplicationContext("context.xml", Main.class);
    DataSource dataSource = (DataSource) ac.getBean("dataSource");
    //DataSource mysqlDataSource = (DataSource) ac.getBean("mysqlDataSource");
    final LobHandler lobHandler = (LobHandler) ac.getBean("lobHandler");
    
    JdbcTemplate jdbcTemplate= new JdbcTemplate(dataSource);
    jdbcTemplate.query("select comments from t_customer where id=?", new Object[] { 2L }, new RowMapper() {
      public Object mapRow(ResultSet rs, int rowNum) throws SQLException {
          return lobHandler.getClobAsString(rs, 1);
      }
  });
  }
}
           
        
Spring-UseLobHandlerToHandleLargeChunkData.zip( 3,656 k)
Spring Java
