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Struts 2.1.6 精简实例系列教程(3):新闻管理Model层的开发(整合iBatis)

 2009-09-23 00:00:00 来源:WEB开发网   
核心提示: 一看这代码,也有点复杂,Struts 2.1.6 精简实例系列教程(3):新闻管理Model层的开发(整合iBatis)(5),我的说法同上,大不了COPY,再略作修改,呵呵好了

一看这代码,也有点复杂,我的说法同上,大不了COPY,再略作修改,呵呵

好了,来写我们的业务逻辑层:

package cn.simple.manager;
import java.io.IOException;
import java.io.Reader;
import java.sql.SQLException;
import java.util.List;
import cn.simple.pojo.Article;
import com.ibatis.common.resources.Resources;
import com.ibatis.sqlmap.client.SqlMapClient;
import com.ibatis.sqlmap.client.SqlMapClientBuilder;
public class ArticleManager {
    /** *//**
     * SqlMapClient instances are thread safe, so you only need one. In this
     * case, we'll use a static singleton. So sue me. ;-)
     */
    private static SqlMapClient sqlMapper;
    /** *//**
     * It's not a good idea to put code that can fail in a class initializer,
     * but for sake of argument, here's how you configure an SQL Map.
     */
    static {
        try {
            Reader reader = Resources.getResourceAsReader("SqlMapConfig.xml");
            sqlMapper = SqlMapClientBuilder.buildSqlMapClient(reader);
            reader.close();
        } catch (IOException e) {
            // Fail fast.
            throw new RuntimeException(
                    "Something bad happened while building the SqlMapClient instance."
                            + e, e);
        }
    }
    /** *//**
     * 查询列表
     * @return
     * @throws SQLException
     */
    public static List<Article> selectAllArticles() throws SQLException {
        return sqlMapper.queryForList("selectAllArticles");
    }
    
    /** *//**
     * 插入数据
     * @param article
     * @throws SQLException
     */
    public static void insertArticle(Article article) throws SQLException {
        sqlMapper.insert("insertArticle", article);
    }
    
    /** *//**
     * 更新数据
     * @param article
     * @throws SQLException
     */
    public static void updateArticle(Article article) throws SQLException {
        sqlMapper.update("updateArticle", article);
    }
    /** *//**
     * 删除数据
     * @param id
     * @throws SQLException
     */
    public static void deleteArticle(int id) throws SQLException {
        sqlMapper.delete("deleteArticleById", id);
    }
    
    /** *//**
     * 单查数据
     * @param id
     * @return
     * @throws SQLException
     */
    public static Article queryArticleById(int id) throws SQLException {
        Article article = (Article)sqlMapper.queryForObject("selectArticleById", id);
        return article;
    }
}

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Tags:Struts 精简 实例

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